3-Phase Over Current Monitor

The Model 2744-120 3-Phase Over Current Monitor provides essential protection for industrial systems. Engineered for reliability, this unit features a 100-130VAC supply voltage and accommodates a 1-5 amp input current range. Its fail-safe design ensures system integrity during operational anomalies, minimizing downtime. With a robust contact rating of SPDT 10A at 240VAC resistive, it offers dependable switching capabilities for various loads. The device is built to withstand challenging conditions, operating effectively across a frequency range of 50-400Hz and temperatures from -20° to +131° F. Transient protection of 2500 VRMS for 10ms safeguards against power fluctuations. This monitor offers both automatic and manual reset options, providing operational flexibility to suit specific application requirements. Its expected mechanical relay life of 10 million operations underscores its long-term performance and reduced maintenance needs.

3Ph W/Start Dly

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2744-120vac

Specifications

Supply voltage100-130VAC
Max supply voltage140V
Power consumption1.5 Watts
Transient protection2500 VRMS for 10ms
Frequency range50 - 400Hz
Input current1-5 amps ±5%
input current40 amps for 2 sec
Current range1-5 amps ± 5%
Start delay5 to 15 sec ± 5%
Dead band4%
Contact ratingSPDT 10A at 240VAC resistive
Expected relay life (Mechanical)10 million operations
Expected relay life (Electrical)100,000 ops at rated load
Operating temperature-20° to +131° F
Enclosure materialABS plastic
DesignFail-safe design
Reset TypeAutomatic or manual reset
Mounting Hole Spacing (Width)4.50
Mounting Hole Spacing (Height)3.13

FAQs

What are the primary power specifications for the 2744-120 Over Current Monitor?
The 2744-120 operates with a supply voltage of 100-130VAC, a maximum supply voltage of 140V, and consumes 1.5 Watts maximum.
What current range and environmental conditions can the 2744-120 monitor accommodate?
It monitors an input current range of 1-5 amps, functions across a 50-400Hz frequency range, and operates in temperatures from -20° to +131° F.
What protection and reliability features are integrated into the 2744-120 unit?
The unit includes 2500 VRMS transient protection for 10ms, a fail-safe design, and a contact rating of SPDT 10A at 240VAC resistive, with an expected mechanical relay life of 10 million operations.