AG Series Mechanical Relay Ground Fault Sensors

	Instrument Meter Specialties 2108 B West Magnolia Blvd Burbank, CA 91506 Phone: 800-926-3837 FAX: 818-841-2379
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	Applications ■ Personnel Protection (typically 5mA) Senses low fault currents and alarms to shut power before injury occurs. ■ Equipment Protection (typically 30mA) When personal protection is not an issue, select a higher setpoint to protect equipment or product. ■ Regulatory Approval Meet requirements by industry groups and governments for Ground Fault Protection. Features Dimensions ■ Broad Range of Options to Match Application Needs: — Choice of NO/NC solid-state switch and mechanical relay outputs. — Normally energized or normally de-energized contacts. — Latching outputs for controlling contactors; auto-reset option for control of shunt trip breakers. — Noise-immune option for use in EMI/RFI sensitive environments. ■ Setpoint Options Maximize Ease-of-Use: — Field-selectable 5mA, 10mA or 30mA setpoints (AG3 “Tri-set” model only) makes user-adjustable setpoint fast and convenient. — Single, factory-adjusted setpoint can be fixed from 5mA to 950mA when ordering. ■ Compatible with Standard Equipment — Applicable on most 1Φ and 3Φ systems. — Ideal for use with shunt trip breakers or contactors. — Magnetically isolated from monitored circuit and control power. ■ Agency Approved UL, CUL and CE acceptance worldwide. Output Table Normally Energized Models (–ENE Option) Protection from faults and loss of control power Control Power Applied No Power No Fault Fault N.C. Closed OPEN Closed N.O. OPEN Closed OPEN Normally De-energized Models (–DEN Option) Protection from faults only when control power is applied Control Power Applied No Power No Fault Fault N.C. Closed CLOSED OPEN N.O. OPEN OPEN Closed Latching Models (-LA Option) Latching models initially power up in the Reset (Normal) position. If there is a fault or the test button is pressed, the output switches and is latched. The output will remain latched after the fault is cleared, even if control power is removed. To reset the output, apply a momentary contact across the “Reset” terminals (5-6). Specifications Dimensions Setpoint Range ■ “Single-Set” Models Factory adjusted and sealed ■ AG1: 5–100mA, specify when ordering ■ AG2: 80–950mA, specify when ordering ■ “Tri-Set” Models ■ 5, 10 & 30mA jumper select Output ■ Auto Reset: SPDT Relay, 1.0A @ 125VAC, 2A @ 30VDC ■ Latching: SPST Relay, 1.0A @ 125VAC, 2A @ 30VDC Response Time ■ 200 ms @ 5% above setpoint ■ 60 ms @ 50% above setpoint ■ 15 ms @ 500% above setpoint Isolation Voltage Up to 1,250VAC (monitored circuit) Frequency Range 50–400Hz (monitored circuit) Noise Immunity Option ■ Shielded from external EMI/RFI interference. ■ Power supply noise filtering. Sensing Aperture 0.75" (19.1mm) dia., up to 4" (100mm) dia. available, consult factory. Power Supply ■ 120VAC, operates from 55-110% of nominal voltage ■ 24VAC & 24VDC, operates +/–10% Case UL 94V-O Flammability Rated Environmental 5 to 158°F (–15 to 70°C), 0-95% RH, non-condensing Safety UL 1053, Class 1 Recognized, CE* *UL and CE recognition is pending. Ordering Information Example: AG1-NOR1-120-LA-005 Ground fault sensor with normally open SPST Relay output, latching, 120VAC power supply, 5mA setpoint, without optional noise immunity. Dimensions

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