3-Phase Monitor

 

• Detects Phase Loss, Low Voltage, Phase Reversal
• Automatic or Manual Reset
• DPDT Relay Output

 

Description

The Model 2522 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 2522 will detect phase loss on a loaded motor even when regenerated voltage is present.

This unit consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay with DPDT contacts. When correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected the Model 2522 will reset.

Both automatic and manual reset versions are available. The Model 2522 does not require a neutral connection, and can be used with Wye or Delta systems. Two versions cover 120V, 208/240V, and 60Hz. Adjustment ranges are sufficiently wide to allow for proper adjustment to existing conditions. A failure indicator is provided to aid in adjustment and system troubleshooting.

 

Specifications

AUTO Reset MANUAL Reset	B2522B B2522BM	2522B 2522BM
Nominal Voltage	120VAC	208/240VAC
Max Input Voltage	132VAC	262VAC
Adjustment Range	85-120VAC	160-240VAC
Frequency	60Hz	60Hz
Power Consumption	.75W	1.5W
Transient Protection	2500 VRMS for 10ms
Repeat Accuracy	±0.1% of set-point (fixed conditions)
Response Time	0.05 seconds
Reset Time	0.05 seconds
Reset Type	Automatic or Manual
Dead Band	2%
Contact Rating	DPDT 5 amps , 115VAC resistive
Max. Contact Rating	870 VA, 30VDC, 300VAC
Expected Relay Life	Mech: 10 million operations Elec: 100,000 operations at rated load
Operating Temp	- 20° to +131° F
Humidity Tolerance	97% w/o condensation
Enclosure Material	ABS plastic
Mounting	*11-pin socket (order separately)
Weight	5 oz.

Downloads

Document	File Type	File Size	Download
Model 2522 Datasheet	PDF	480 KB

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17 Raritan Road, Oakland, NJ 07436 | 800-526-5376
Created By: G.Dezines