3-Phase Monitor

2522B-400HZ

The 2522B 3-Phase Monitor offers essential protection for industrial systems. This device continuously monitors for critical conditions including phase loss, low voltage, and phase reversal, ensuring operational integrity. Its automatic reset function minimizes downtime by restoring operation without manual intervention once faults clear. Featuring a DPDT contact configuration, it provides versatile control capabilities for various applications. Designed for 208/240VAC nominal voltage systems, the monitor exhibits a rapid 0.05-second response time to anomalies, facilitating prompt system response. With a low power consumption of 1.5W and compatibility with both Wye and Delta systems, the 2522B integrates efficiently into diverse electrical infrastructures. Its robust design, including an ABS plastic enclosure and a wide operating temperature range of -20° to +131° F, ensures reliable performance in demanding environments. This monitor contributes to system stability and longevity by safeguarding against common electrical irregularities.

240V 3Ph Pm Dpdt

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2522b-400hz

Specifications

Monitored ConditionsPhase Loss, Low Voltage, Phase Reversal
Reset TypeAutomatic
Contact ConfigurationDPDT
Nominal Voltage208/240VAC
Max Input Voltage262VAC
Adjustment Range160-240VAC
Frequency60Hz
Power Consumption1.5W
Transient Protection2500 VRMS for 10ms
Repeat Accuracy±0.1% of set-point (fixed conditions)
Response Time0.05 seconds
Reset Time0.05 seconds
Dead Band2%
Contact Rating5 amps, 115VAC resistive
Contact Rating870 VA, 30VDC, 300VAC
Expected Relay Life (Mechanical)10 million operations
Expected Relay Life (Electrical)100,000 operations at rated load
Operating Temperature-20° to +131° F
Humidity Tolerance97% w/o condensation
Enclosure MaterialABS plastic
Mounting11-pin socket (order separately)
Socket Part Number51X016
System CompatibilityWye or Delta systems
Neutral ConnectionNot required

FAQs

What electrical conditions does the 2522B 3-Phase Monitor detect?
The 2522B monitors for phase loss, low voltage, and phase reversal in 3-phase systems.
Does the 2522B require manual resetting after a fault condition?
No, the 2522B features an automatic reset type, allowing it to restore operation once the fault clears.
What is the nominal voltage range and contact configuration for the 2522B?
The 2522B operates at a nominal voltage of 208/240VAC and utilizes a DPDT contact configuration.