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NJB1-X
Product Consultation
Low Voltage IEC Industrial Control NJB1-X
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Industrial Control
NJB1-X
NJB1-X

NJB1-X

The CHINT NJB1-X Protection Relay is a compact, high-performance relay designed to safeguard three-phase AC control circuits from phase sequence errors and phase loss faults. Operating across a 200 V–500 V range at 50/60 Hz, it ensures fast and reliable fault response within 0.1 seconds. With a DIN-rail-mounted design, low power consumption, and a clear LED status indicator, the NJB1-X is ideal for industrial automation systems, control cabinets, and motor protection panels.

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Product Information

Name
Size
Release time
Operate
NJB1-X-Protection Relays-catalog.pdf
197.75KB
2025-03-13
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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