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NJB1-X Protection Relay
Product Consultation
Industrial Control NJB1-X Protection Relay
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Industrial Control
NJB1-X Protection Relay
NJB1-X Protection Relay

NJB1-X Protection Relay

The NJB1-X Protection Relays are used in AC 50/60Hz control circuits with voltage from AC380V to AC480V. It provides reliable protection against phase sequence errors, phase failure, and three-phase voltage unbalance by controlling circuit connection or disconnection, ensuring equipment safety and stability.

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Product Information

Name
Size
Release time
Operate
NJB1-X-VOLTAGE-PROTECTION-RELAY-Catalog.pdf
225.67KB
2025-12-24
Download
Name
Size
Release time
Operate
2111-NJB1-X-Voltage Protection Relay-Manual.pdf
1.51MB
2025-03-13
Download
Name
Size
Release time
Operate
2112-NJB1-X-Voltage Protection Relay-EAC Certificate.pdf
905.01KB
2025-03-13
Download
2002-NJB1-X-Voltage Protection Relay-CE Certificate.pdf
371.27KB
2025-03-13
Download
Name
Size
Release time
Operate
NJB1-X-Voltage Protection Relay-Drawing-3D.stp
3.18MB
2025-03-25
Download

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FAQs

 

What does the NJB1-X Protection Relay do?

It monitors three-phase power systems and automatically disconnects the control circuit when a phase sequence error or phase loss is detected, protecting motors and connected equipment from damage.

 

What is the operating voltage range?

It works across AC 200 V to 500 V, 50/60 Hz, making it compatible with most industrial power systems.

 

How quickly does it respond to a fault?

The relay reacts within 0.1 seconds after detecting a phase loss or incorrect sequence, providing instant protection.

 

Can it monitor motor load phase loss directly?

No. It is designed for control circuits only and does not directly detect motor load phase loss.

 

How is it installed and indicated?

The relay is DIN-rail mounted and features an LED indicator that illuminates when operating normally.

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