MVAJ105RA0802A ALSTOM High Speed Hinged Armature Tripping Relay

 Alstom MVAJ105RA0802A Product Introduction and Technical Specifications
Brand: Alstom
Model: MVAJ105RA0802A
Product Name: High Speed Hinged Armature Tripping Relay
Overall Dimensions: 205 mm × 100 mm × 135 mm
Weight: Approximately 1.2 kg
Operating Temperature: -20°C to +60°C

Storage Temperature: -40°C to +85°C
Relative Humidity: 5% to 95% non-condensing
Place of Origin: United Kingdom
HS Customs Code: 8536411000
Electrical Specifications: Rated operating voltage is 110–125 VDC. It is equipped with multiple configurable contact sets, continuous contact rated current reaches 10A and making/breaking current is 30A. The typical operate time is less than 10 ms. It adopts high burden design to avoid false tripping caused by capacitive discharge on long DC control cables.
Mechanical and Protection Features: IP20 protection level for cabinet mounting. It uses draw-out case structure, supporting horizontal rack installation in standard relay panels. The hinged armature structure is optimized to reduce contact bounce during operation. It meets relevant IEC and BS power protection standards.
Core Characteristics: Ultra-fast operating speed ensures rapid fault isolation for power system protection. High burden characteristic provides strong immunity against induced interference and stray capacitance in long control circuits. It supports manual lockout reset function, requiring on-site inspection before resetting after a protection action. Multiple contact poles can be used for tripping output, interlocking and status feedback. Robust mechanical structure guarantees long service life under frequent operation in substation environments, and it is compatible with traditional power protection panels of Alstom and Areva legacy systems.