3-Phase Monitor

B246-3PH

The Model 246 3-Phase Monitor provides essential protection for industrial systems. It continuously monitors for critical conditions including phase loss, phase reversal, undervoltage, and overvoltage, ensuring operational integrity. With an automatic reset function, the unit minimizes downtime by restoring operation without manual intervention once faults clear. Its robust design includes transient protection up to 2500V for 10ms, enhancing system resilience against electrical disturbances. The monitor maintains a repeat accuracy of ±0.1% of set point under fixed conditions, offering consistent and precise performance. Operating across a wide temperature range of -20° to +131° F and tolerating 0-97% humidity without condensation, it is suitable for diverse industrial environments. A 5-year unconditional warranty underscores its reliability and long-term value, providing confidence in its sustained operation.

Pwr Mon 400Hz

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b246-3ph

Specifications

Monitors forPhase Loss or Reversal, Low and Over Voltage
Reset TypeAutomatic
Agency ApprovalCSA
Warranty5 Year Unconditional Warranty
Nominal AC Voltage208/240
Adjustment Range (Low)160-260 V
Adjustment Range (High)210-280 V
Frequency60Hz
Power Consumption (per phase)1.5W
Transient Protection2500V for 10ms
Repeat Accuracy±0.1% of set point (fixed conditions)
Response/Reset Time50ms
Dead Band2%
Contact RatingSPDT 10A at 240VAC resistive
Expected Relay Life (Mechanical)10 million operations
Expected Relay Life (Electrical)100,000 at rated load
Operating Temperature-20° to +131° F
Humidity Tolerance0-97% w/o condensation
Enclosure MaterialABS plastic
Mounting8-pin socket *order separately
Max Input Voltage280VAC

FAQs

What conditions does the Model 246 monitor for?
The Model 246 monitors for phase loss or reversal, low voltage, and over voltage conditions.
What is the operating voltage range for this monitor?
The nominal AC voltage is 208/240V. The adjustment range for low voltage is 160-260V, and for high voltage, it is 210-280V.
What is the expected lifespan and contact rating of the relay?
The relay has an expected mechanical life of 10 million operations and an electrical life of 100,000 at rated load. The contact rating is SPDT 10A at 240VAC resistive.