Used (with 150 Volt full scale A.C. voltmeters) to measure the voltage of 240, 480 or 600 VAC systems. Primary insulated for 4.0 KV rms test, suitable for L.V. switchgear and motor control use. 50/60 Hz. operation. Open construction - "Type H". CSA certified (209651). The nominal line voltages of 240 and 480 volts may be exceeded by 25% for 60 Hz. operation. Insulation system 55 degree C rise, Class 105.
| Mfr. Part No. | Description |
| VT55A | Nominal Line Voltage, 240 |
| HX54A | Nominal Line Voltage, 240 |
| VT56A | Nominal Line Voltage, 347 |
| VT57A | Nominal Line Voltage, 480 |
| HX74A | Nominal Line Voltage, 480 |
| VT59A | Nominal Line Voltage, 600 |
| HX94A | Nominal Line Voltage, 600 |
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