SPD480 Phase Rotation Indicator. The SPD480 determines phase rotations on secondary potential transformers.

- Easy to operate – connect one lead to each phase
- Large alligator clips for easy connection to cables and bus bars
- Operates properly on variable frequency drives. Does not give false readings by pulsed waveforms
- Verify proper rotation on feeder extensions
- Determine phase rotation on secondary potential transformers
The TPI Model SPD480 Phase Rotation Indicator operates properly on variable frequency drives. Does not give false readings by pulsed waveforms.
Model SPD480 Specifications | ||
---|---|---|
Voltage Range | 110V to 480V 3 phase | |
Maximum Voltage Input | 480V | |
Frequency Response | 40Hz to 70Hz | |
Maximum Voltage Input Time Ratings | 480V: 4 minutes 450V: 4 minutes 220V: 30 minutes 110V: Continuous |
|
Test Lead Insulation Rating | 1000V | |
Fusing | 500mA, 50kA interrupting rating | |
Size | 1.6” x 6” x 3” (41mm x 152mm x 77mm) | |
Net weight | 9.8 oz. (278g) |
Rotating disk indicates phase rotation
Features & Benefits
- Easy to operate – connect one lead to each phase
- Large alligator clips for easy connection to cables and bus bars
- Operates properly on variable frequency drives. Does not give false readings by pulsed waveforms
- Verify proper rotation on feeder extensions
- Determine phase rotation on secondary potential transformers