MVAJ051RB0800B Power protection auxiliary relay

Product Introduction

MVAJ051RB0800B is a power protection auxiliary relay of AREVA/ALSTOM power series,specially used for substation relay protection.Adopting precision electromagnetic operating structure,it features fast action,high stability and strong anti-interference performance.It is widely used in relay protection circuits of high-voltage distribution cabinets,power plants and power grid substations.It is responsible for signal switching,circuit interlocking,auxiliary trip control and status feedback,and is an essential standard component for power secondary control systems.

Main Functions

Realize signal conversion,logic interlock and circuit on-off control of power protection circuits.

Provide multiple sets of independent contact outputs for linkage between protection devices,circuit breakers and control circuits.

Equipped with mechanical action indicator to directly display working status.

Support both electrical reset and manual reset for convenient on-site operation.

Built-in anti-jitter and mis-operation prevention design to avoid false action caused by power fluctuation and electromagnetic interference.

Match various protection systems to realize trip locking,alarm output and position signal transmission.

Specification Parameters

Model:MVAJ051RB0800B

Brand:AREVA/ALSTOM

Rated Operating Voltage:DC110V/DC220V

Contact Type:Combined NO and NC contacts

Rated Contact Capacity:Suitable for high-power DC load

Action Response Time:Fast instantaneous action

Operating Temperature:-25℃~+70℃

Ambient Humidity:5%~95%non-condensing

Installation Type:Standard panel cabinet embedded installation

Insulation Class:High insulation grade for power industry

Protection Performance:Dustproof and moistureproof,suitable for indoor power cabinet environment