ALSTOM MVAJ13D1GB0780A Trip and auxiliary relay module
Specific Parameters
Rated Operating Voltage 110VDC, 220VDC, 110VAC/220VAC 50/60Hz
Contact Configuration Multiple Changeover Contacts, Heavy-duty Contact Combination
Rated Contact Load 5A/250VAC, 5A/125VDC
Operating Time ≤10ms at Rated Voltage
Reset Mode Manual Reset
Dielectric Withstand Voltage 2kVAC/50Hz/1min
Operating Temperature Range -20℃ to +60℃
Relative Humidity 5% to 95%, Non-Condensing
Protection Class IP20
Mounting Type Panel Mounting, Standard Rail Mounting
Mechanical Life ≥100,000 Operations
Product Performance
Action Execution Performance: Adopts high-speed electromagnetic drive structure, with action response time ≤10ms at rated voltage, precise action without jitter and contact bounce, can quickly execute tripping and locking commands, eliminate protection failure caused by command delay, and ensure equipment and system quickly get rid of dangerous state under power fault conditions.
Contact Load Performance: Equipped with heavy-duty changeover contact combination, with strong rated contact load capacity, can directly drive circuit breaker tripping coils and various indication circuits, stable contact and reliable on-off, no overheating and ablation during long-term on-load operation, adapting to high-load and high-frequency action requirements of power systems.
Anti-interference Durability Performance: Has excellent anti-electromagnetic interference and anti-capacitance discharge impact capabilities, can resist surge, harmonic and stray signal interference in power systems, eliminate maloperation and refusal to operate; mechanical life is more than 100,000 times, made of industrial-grade materials, stable mechanical performance during long-term operation, no jamming and failure.
Insulation Safety Performance: Excellent overall insulation performance, meeting 2kVAC power frequency withstand voltage standard, complete electrical isolation between coil and contact circuit, effectively blocking signal crosstalk between high-voltage side and low-voltage control side, preventing high-voltage breakdown from damaging back-end protection devices, and improving the safety level of the overall protection circuit.
Environmental Adaptability Performance: Strong wide-temperature environmental adaptability, can operate continuously for a long time in extreme industrial and power environments from -20℃ to +60℃, dust and vibration resistant, adapting to outdoor and semi-outdoor working conditions without constant temperature control such as substations and power plants, stable and trouble-free operation all-weather.
Installation Adaptability Performance: Supports two mounting methods: panel opening mounting and standard rail quick mounting, modular compact structure, standardized wiring interface, can flexibly adapt to the installation layout of various relay protection panels and power distribution control cabinets, convenient on-site installation and commissioning, and deployment can be completed without special tools.
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