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OMRON J7MN-3R-4 | Motor Protection Circuit Breaker | 2.5 to 4 A, 400 V

Name: OMRON J7MN-3R-4 | Motor Protection Circuit Breaker | 2.5 to 4 A, 400 V
Brand: OMRON
SKU: J7MN-3R-4
Availability: InStock

Part Number : J7MN-3R-4

With a 2.5 to 4 A current range at 400 V, the OMRON J7MN-3R-4 is a motor protection circuit breaker. Listed in the J7MN MPCB range as Class 10, the J7MN-3R-4 uses current sensing.

Current rating: 2.5 to 4 A
Supply voltage: 400 V
Range: J7MN MPCB
Motor protection system: Class 10
Sensing type: Current

Availability: low stock

Detailed Description
Specifications
Downloads

Omron J7MN MPCB Motor Protection Unit, 2.5 to 4 A Current Rating, 2.5 to 4 A Current Rating Supply Voltage - J7MN-3R-4

This motor protection unit is a reliable solution designed to safeguard industrial motors from overload and short-circuit conditions. The J7MN series ensures operational integrity within demanding environments, making it essential for automation and electrical applications. With a current rating of 2.5 to 4A and a supply voltage of 400V, this unit combines durability with efficiency to enhance industrial motor safety.

Features & Benefits

• Class 10 motor protection prevents motor overheating
• Fixed short-circuit release set at 13 times rated current
• Overload release adjustable between 0.65 and 1 times rated current
• Current sensing technology facilitates accurate monitoring
• Rated operational current supports a range of applications
• Fulfils required industry standards for safety compliance

Applications

• Used with three-phase induction motors in industrial settings
• Suitable for where overload protection is critical
• Employed in environments requiring strict adherence to safety standards

What mechanisms are in place to prevent accidental restarting after a power interruption?

This unit features an undervoltage release mechanism, which ensures that the circuit breaker trips when voltage is lost, thereby preventing unintended motor restarts when power is restored.

How does the motor protection unit enhance operational safety?

Equipped with a current sensing type that ensures accurate detection of overloads, the unit effectively isolates faulty equipment, significantly reducing the risk of damage and enhancing overall safety for industrial operations.

What is the importance of the fixed short-circuit release setting?

The preset short-circuit release at 13 times the rated current allows for quick disconnection during fault conditions, minimising potential damage to the motor and surrounding equipment.