Reverse Phase Relay

 

• Socket-mounted
• Senses phase reversal
• Low power consumption
• UL Recognized; CSA Certified

 

Description

The Model 253 Reverse Phase Relay is a solid-state sensing device designed for installation in equipment using 3-phase power. This unit is used where it is desirable to have a contact closure indicating that the proper phase rotation sequence has been applied.

The relay closes when the proper sequence (ABC) is applied, but will remain open if any two phases are reversed. If reverse phasing occurs during operating, the relay also de-energizes.

The Model 253 has a special industrial-grade relay designed for low power consumption. The ABC indicator will be illuminated when the proper phase rotation sequence is applied.

 

Specifications

Model	253
Nominal voltage	208 - 480 VAC (phase to phase)
Operating range	190 - 480 VAC
Frequency	50 to 60Hz
Power consumption	2W per phase
Transient protection	2500V for 10ms
Repeat accuracy	± 0.1% (fixed conditions)
Response time	.05 seconds
Reset time	.05 seconds
Reset type	Automatic
Dead Band	Approximately 2%
Output contacts	SPDT 10A at 240VAC resistive
Expected relay life	Mechanical: 10 million operations Electrical: 100,000 at rated load
Operating temperature	- 20° to +131° F
Humidity tolerance	0 - 97% w/o condensation
Case material	ABS plastic
Mounting	8-pin socket *(order separately)
Weight	6 oz.
Agency approval	UL Recognized and CSA Certified

Downloads

Document	File Type	File Size	Download
Model 253 Datasheet	PDF	532 KB

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