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The PGR-3200 series insulation monitor operates on ungrounded ac systems. This unit detects ground faults by continuously monitoring the insulation integrity of ungrounded electrical systems. It monitors the insulation for damage and assists with predictive maintenance and troubleshooting of developing ground-faults by providing a warning or an alarm. The three levels of detection are: a 50 kΩ warning with an LED and output contact indication; a 30 kΩ warning with LED indication; and a 10 kΩ alarm with LED and output contact indication. An analog output is provided for predictive maintenance trending. The PGR-3200 operates on one- or three-phase ungrounded systems up to 6 kV. This unit can also be used on a grounded system to monitor the insulation for damage while the power system is de-energized. The mode-of-operation terminals (27-28) are connected to the circuit breaker or contactor auxiliary contacts to toggle the relay off when the contactor or breaker is closed.
- NEC® and CEC code compliant
- Output contact (50 kΩ)
- Output contact (10 kΩ)
- Analog output (0–1 mA)
- DIN-rail or surface mount
- POWR-GARD® technology
- Meets NEC Article 250.21(B) and CEC Part 1, Section 10-106 (2) requirements for ungrounded systems
- Form C output contact for alarming when the insulation resistance is below 50 kΩ
- Form C output contact for tripping when the insulation resistance is below 10 kΩ
- Provides means for connecting to an optional meter (PGA-0510) or control system
- Flexible options for ease of installation
- Superior protection against electrical system damage
PGR-3200 Parts
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PGR-3200 Applications
- Ungrounded ac systems
