3-Phase Monitor

 

• HVAC or Compressor Applications
• Automatic Reset
• Adjustable Restart Delay
• Fast Trip Response
• UL Recognized; CSA Certified

 

Description

The Model 265 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for phase loss, low voltage and phase reversal. When properly adjusted, the Model 265 Monitor will detect phase loss on a loaded motor even when regenerated voltage is present.

The solid-state sensing circuit drives an internal relay, in a fail-safe configuration, i. e. , the relay is energized when correct voltage and phase rotation are applied.

Operating power for the Model 265 is drawn from the 3-phase lines being monitored. An adjustable timer delays restarting of the load, allowing up to five minutes for compressor head pressures to bleed off, in the event of short-term power failures.

The Model 265 Monitor is not sensitive to line current, and can be used with any size motor or compressor. Automatic and manual reset versions are available.

 

Specifications

AUTO Reset	A265	B265	C265	D265	EX265
Nominal AC Voltage (phase to phase)	120VAC	208/240VAC	480VAC	575VAC	380VAC
Adjustment Range	85-120V	160-240V	380-480V	450-575V	300-380V
Frequency	60Hz	60Hz	60Hz	60Hz	50Hz
Power Consumption	0.25W	0.5W	1.5W	2.5W	1.5W
Transient Protection	2500 VRMS for 10ms
Repeat Accuracy	± 0.1% of set point (fixed conditions)
Response Time	50ms maximum
Reset Time	Adjustable - 20 to 300 seconds ±10%
Dead Band	Approximately 2%
Output Contacts	SPDT 10 amps at 240VAC resistive
Expected Relay Life	Mech: 10 million operations Elec: 100,000 operations at rated load
Operating Temperature	- 20° to +131° F
Humidity Tolerance	0 - 97% w/o condensation
Enclosure Material	ABS plastic
Mounting	Surface
Weight	10 oz.
Agency Approvals	UL Recognized and CSA Certified

Downloads

Document	File Type	File Size	Download
Model 265 Datasheet	PDF	526 KB

© 2023 Relay Specialties, Inc.
17 Raritan Road, Oakland, NJ 07436 | 800-526-5376
Created By: G.Dezines