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NJB1-X1 Relay
Product Consultation
Low Voltage IEC Industrial Control NJB1-X1 Relay
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Industrial Control
NJB1-X1 Relay
NJB1-X1 Relay

NJB1-X1 Relay

The CHINT NJB1-X1 Voltage Protection Relay provides precise phase sequence and phase loss protection in AC control circuits ranging from 200V to 500V, operating at 50/60Hz. It detects abnormal phase sequences or missing phases and promptly disconnects the circuit within 0.1 seconds to protect connected equipment. Featuring rail-mounted installation, low power consumption, and LED operation indication, this relay is ideal for industrial power systems, motor control panels, and automation applications.

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Product Information

Name
Size
Release time
Operate
NJB1-X1-Voltage Protection Relay-Catalog.pdf
213.56KB
2025-03-19
Download
Name
Size
Release time
Operate
2111-NJB1-X1-Voltage Protection Relay-Manual.pdf
1013.57KB
2025-03-13
Download

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FAQs

 

What is the function of the NJB1-X1 Voltage Protection Relay?

It detects incorrect phase sequence or phase loss in 3-phase systems and disconnects the circuit automatically to protect downstream equipment.

 

What voltage range does it support?

The NJB1-X1 operates with AC 200V–500V at 50/60Hz, making it suitable for most industrial power networks.

 

How fast does it respond to faults?

It reacts within 0.1 seconds in case of phase loss or sequence errors, ensuring fast and reliable protection.

 

How is it installed?

The relay is designed for DIN rail mounting, allowing easy integration into standard control panels.

 

Does it detect motor phase loss directly?

No. While it protects the control circuit, the NJB1-X1 cannot directly monitor motor load phase loss, and should be paired with appropriate motor protection relays when needed.

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