Potential Transformer Model 450
Potential Transformers are encased in a thermoplastic case with the core and windings encapsulated in resin. Designed for line to line operation but may also be used in a line to neutral or line to ground configuration at 58% of rated voltage. All transformers with rated voltages 346V and below are ANSI C57.13 Group 1. All transformers rated 480V and 600V are Group 2.
| Frequency | 60 Hz |
| Secondary Voltage | 120 VAC |
| Insulation Level | 600V, 10kV BIL Full Wave |
| Accuracy Class | 0.3 W, X, M, Y and 1.2Z (0.3 W, 0.6 X, M, Y for 69V and 120V inputs) |
| Thermal Rating | 750 VA @ 30°C, 500 VA @ 55°C |
| Weight | 25 lbs |
| Standards | ANSI C57.13 |
- Terminals are No. 10-32 screws into 3/8" deep brass inserts with lock washer and flat washer, contained in a sealable terminal cover.
- Recommend using a 8.0 Amp BBS type fuse in the secondary to protect the transformer.
- When only one fuse is used, it must be connected into the line side (H1) terminal wiring.
- 480V and 600V rated units are ANSI C57.13 Group 2; all others are Group 1.