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A wide range of screw-on accessories including modular adaptors. All of the Modular Test Leads on this page are RoHS Compliant.

Lighted Test Lead.

Click for Data Sheet

Click for Data Sheet

Where to Buy TPI Products

 A035 Specifications
 Maximum Voltage  1000V
 Maximum Amperage  10A
 Agency Listing  cULus 61010; IEC 61010
 Category Rating  CAT III 1000V
 Insulation Material  Silicone
 Dimensions  Lead Length: 1080.00mm
 Prod Length: 16.00mm
 Jaw Opening: N/A
 Type  0.16" (4.0mm) Shutter Plug

Frequently Asked Questions

What are the differences between the various types of TPI test leads?

Push-on tip test leads

  • Limited adaptability. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More adaptability. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most adaptability. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

Which test lead type is right for me?

The type of test lead you need is dependent on the applications you encounter.

  • If your applications require a standard lead and occasionally an alligator clip then the push on series of leads would work.
  • If you require a more secure connection of the alligator clip or would like the ability to use modular lead accessories in the future then the screw-on tip is right for you.
  • If your applications are varying and require several types of leads then modular leads are the correct choice.
  • If you have applications that require the utmost in safety then fused leads are the best choice.

What is the advantage to using modular test leads?

Modular test leads offer the most versatility of any lead set. Various types of lead tips can be used for different applications. A modular lead can be changed from a standard prod with handle to an insulation piercing probe, to an alligator clip lead just by changing the type of lead tip.

Can I use modular lead accessories with my screw-on tip test leads?

Yes, by using the A052 modular adapters. Screw the A052’s onto the tips of your test leads makes them modular.

What are important specifications when considering test leads?

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings.

Important Test Lead Criteria:

Lead Construction

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings

Lead Types

Screw-on tip test leads

  • Limited versatility. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More versatility. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most versatility. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

6 foot Shielded Test Lead Set with Alligator Clips.

Click for Data Sheet

Click for Data Sheet

Where to Buy TPI Products

 A060 Specifications
 Maximum Voltage  1000V
 Maximum Amperage  10A
 Agency Listing  cULus 61010; IEC 61010
 Category Rating  CAT III 1000V; CAT IV 600V
 Insulation Material  PVC
 Dimensions  Lead Length: 72" (1829mm)
 Prod Length: 0.64" (16.13mm)
 Jaw Opening: N/A
 Type  0.16" (4.0mm) Shutter Plug

Frequently Asked Questions

What are the differences between the various types of TPI test leads?

Push-on tip test leads

  • Limited adaptability. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More adaptability. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most adaptability. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

Which test lead type is right for me?

The type of test lead you need is dependent on the applications you encounter.

  • If your applications require a standard lead and occasionally an alligator clip then the push on series of leads would work.
  • If you require a more secure connection of the alligator clip or would like the ability to use modular lead accessories in the future then the screw-on tip is right for you.
  • If your applications are varying and require several types of leads then modular leads are the correct choice.
  • If you have applications that require the utmost in safety then fused leads are the best choice.

What is the advantage to using modular test leads?

Modular test leads offer the most versatility of any lead set. Various types of lead tips can be used for different applications. A modular lead can be changed from a standard prod with handle to an insulation piercing probe, to an alligator clip lead just by changing the type of lead tip.

Can I use modular lead accessories with my screw-on tip test leads?

Yes, by using the A052 modular adapters. Screw the A052’s onto the tips of your test leads makes them modular.

What are important specifications when considering test leads?

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings.

Important Test Lead Criteria:

Lead Construction

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings

Lead Types

Screw-on tip test leads

  • Limited versatility. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More versatility. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most versatility. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

10 foot Shielded Test Lead Set with Alligator Clips.

Click for Data Sheet

Click for Data Sheet

Where to Buy TPI Products

 A065 Specifications
 Maximum Voltage  1000V
 Maximum Amperage  10A
 Agency Listing  N/A
 Category Rating  N/A
 Insulation Material  PVC
 Dimensions  Lead Length: 120" (3048mm)
 Prod Length: 120" (3048mm)
 Jaw Opening: N/A
 Type  0.16" (4.0mm) Shutter Plug

Frequently Asked Questions

What are the differences between the various types of TPI test leads?

Push-on tip test leads

  • Limited adaptability. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More adaptability. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most adaptability. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

Which test lead type is right for me?

The type of test lead you need is dependent on the applications you encounter.

  • If your applications require a standard lead and occasionally an alligator clip then the push on series of leads would work.
  • If you require a more secure connection of the alligator clip or would like the ability to use modular lead accessories in the future then the screw-on tip is right for you.
  • If your applications are varying and require several types of leads then modular leads are the correct choice.
  • If you have applications that require the utmost in safety then fused leads are the best choice.

What is the advantage to using modular test leads?

Modular test leads offer the most versatility of any lead set. Various types of lead tips can be used for different applications. A modular lead can be changed from a standard prod with handle to an insulation piercing probe, to an alligator clip lead just by changing the type of lead tip.

Can I use modular lead accessories with my screw-on tip test leads?

Yes, by using the A052 modular adapters. Screw the A052’s onto the tips of your test leads makes them modular.

What are important specifications when considering test leads?

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings.

Important Test Lead Criteria:

Lead Construction

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings

Lead Types

Screw-on tip test leads

  • Limited versatility. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More versatility. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most versatility. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

Test leads with threaded tips.

Click for Data Sheet

Click for Data Sheet

Where to Buy TPI Products

 A080 Specifications
 Maximum Voltage  1000V
 Maximum Amperage  10A
 Agency Listing  cULus 61010; IEC 61010
 Category Rating   CAT III 1000V; CAT IV 600V
 Insulation Material  Silicone
 Dimensions  Lead Length: 3.9 feet (1.2 Meter)
 Prod Length: 0.64” (16.13mm)
 Jaw Opening: N/A
 Type  0.16” (4mm) fixed right angle male banana plug

Frequently Asked Questions

What are the differences between the various types of TPI test leads?

Push-on tip test leads

  • Limited adaptability. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More adaptability. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most adaptability. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

Which test lead type is right for me?

The type of test lead you need is dependent on the applications you encounter.

  • If your applications require a standard lead and occasionally an alligator clip then the push on series of leads would work.
  • If you require a more secure connection of the alligator clip or would like the ability to use modular lead accessories in the future then the screw-on tip is right for you.
  • If your applications are varying and require several types of leads then modular leads are the correct choice.
  • If you have applications that require the utmost in safety then fused leads are the best choice.

What is the advantage to using modular test leads?

Modular test leads offer the most versatility of any lead set. Various types of lead tips can be used for different applications. A modular lead can be changed from a standard prod with handle to an insulation piercing probe, to an alligator clip lead just by changing the type of lead tip.

Can I use modular lead accessories with my screw-on tip test leads?

Yes, by using the A052 modular adapters. Screw the A052’s onto the tips of your test leads makes them modular.

What are important specifications when considering test leads?

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings.

Important Test Lead Criteria:

Lead Construction

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings

Lead Types

Screw-on tip test leads

  • Limited versatility. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More versatility. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most versatility. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

Test leads with threaded tips and screw on Alligator clips.

Click for Data Sheet

Click for Data Sheet

Where to Buy TPI Products

 A085 Specifications
 Maximum Voltage  1000V
 Maximum Amperage  10A
 Agency Listing  cULus 61010; IEC 61010
 Category Rating   CAT III 1000V; CAT IV 600V
 Insulation Material  Silicone
 Dimensions  Lead Length: 3.9 feet (1.2 Meter)
 Prod Length: 0.64” (16.13mm)
 Jaw Opening: (alligator clips) 0.45” (11.30mm)
 Type  0.16” (4mm) fixed right angle male banana plug

Frequently Asked Questions

What are the differences between the various types of TPI test leads?

Push-on tip test leads

  • Limited adaptability. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More adaptability. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most adaptability. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.

Which test lead type is right for me?

The type of test lead you need is dependent on the applications you encounter.

  • If your applications require a standard lead and occasionally an alligator clip then the push on series of leads would work.
  • If you require a more secure connection of the alligator clip or would like the ability to use modular lead accessories in the future then the screw-on tip is right for you.
  • If your applications are varying and require several types of leads then modular leads are the correct choice.
  • If you have applications that require the utmost in safety then fused leads are the best choice.

What is the advantage to using modular test leads?

Modular test leads offer the most versatility of any lead set. Various types of lead tips can be used for different applications. A modular lead can be changed from a standard prod with handle to an insulation piercing probe, to an alligator clip lead just by changing the type of lead tip.

Can I use modular lead accessories with my screw-on tip test leads?

Yes, by using the A052 modular adapters. Screw the A052’s onto the tips of your test leads makes them modular.

What are important specifications when considering test leads?

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings.

Important Test Lead Criteria:

Lead Construction

Strands of wire

  • The more strands of wire in a test lead, the more flexible it typically is.
  • Higher strand count increases test lead life.
  • TPI silicone insulated test leads offer higher strand counts than PVC insulated leads.

PVC Insulated test leads

  • Durable low cost lead.
  • Useful for general test and measurement applications.

Silicone Insulated test leads

  • Most durable test lead.
  • Double insulated for safety. When half the insulation is worn away or when a lead is nicked or cut, you will see a white strip. This strip indicates half the insulation is gone and the lead should be replaced.
  • Flame retardant. PVC test leads will burn or melt when exposed to heat.
  • More flexible than PVC leads.
  • Typically carry agency approval such as: cULus and IEC category ratings

Lead Types

Screw-on tip test leads

  • Limited versatility. Accept push on alligator clips only.
  • Made of PVC insulation

Screw-on tip test leads

  • More versatility. Allows attachment of screw on accessories like alligator clips and adapters. More secure attachment than straight tipped test leads
  • Screw on tip test leads can be converted to modular test leads using the A052 modular adapters.
  • Made of PVC or Silicone insulation depending on lead.

Modular test leads

  • Most versatility. Allows selection of different ends or tips for varying applications. One modular lead can be used as a grabber, back probe, standard lead, etc.
  • Lead ends and tips are easily interchanged.

Fused test leads

  • Increased safety over standard non-fused test leads. Fuses in a tester protect the tester; fused test leads protect the user.
  • Used for additional safety when making voltage measurements.