3-Phase Monitor

 

• DPDT 600VAC Output Contacts
• Adjustable Trip & Restart Delays
• Adjustable Voltage Level
• 5 Year Unconditional Warranty

 

Description

The Model 259 3-Phase Monitor is designed to protect individual 3-phase equipment and motors, or in conjunction with shunt trip breakers. When correct voltage and phase rotation is applied, an internal DPDT relay energizes.

A fault condition (phase loss, phase reversal, or low voltage) drops out the relay and lights the LED failure indicator. The Model 259 will detect a phase loss condition even when regenerative voltage is present.

The Model 259 may be used with Wye or Delta systems and requires no neutral connection. Standard operating ranges are available from 120 to 575 VAC, 60Hz and 380 VAC, 50Hz

 

Specifications

Model	A259	B259	C259	D259	EX259
Nominal AC Voltage (phase to phase)	120VAC	208/240VAC	480VAC	575VAC	380VAC
Adjust Range (VAC)	85-125	160-260	380-500	450-600	300-400
Frequency	60Hz				50Hz
Power Consumption	2.1W	3.3W	4.2W	6.9W	4.2W
Transient Protection	2500V for 10ms
Repeat Accuracy	± 0.1 % (fixed conditions)
Response Time	Adjustable 1 to 5 seconds
Reset Time	Adjustable 0.2 to 10 minutes
Reset Type	Automatic
Dead Band	Approximately 2%
Output Contacts	DPDT 3A at 480/600VAC 80% PF 10A at 240VAC 80% PF resistive
Expected Relay Life	Mech: 10 million operations Elec: 100,000 operations at rated load
Operating Temp	-20° to+131°F
Humidity Tolerance	0-97% w/o condensation
Enclosure Material	20 gauge steel
Mounting	Surface
Weight	17 oz.

Downloads

Document	File Type	File Size	Download
Model 259 Datasheet	PDF	532 KB

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