- Model: MVAJ13D1GB0780A
- Brand: ALSTOM (now GE Vernova)
- Series: MVAJ 11-34 (older range)
- Core Function: Hand-reset low burden tripping relay for breaker control
- Type: Low burden auxiliary/hand-reset trip relay
- Key Specs: Hand reset with flag, low burden configuration, typically 110-125 V DC/AC operate, operate time <10 ms typical
Key Technical Specifications
- Operate voltage: Typically 110-125 V DC/AC (low burden; verify exact rating on nameplate)
- Contact arrangement: Multiple contacts (often 5-10 make/break combinations; exact NO/NC depends on build – confirm via OEM manual or photo)
- Reset method: Hand reset (manual push-button with visible flag)
- Burden: Low burden (suitable where capacitance discharge immunity not critical)
- Operate time: <10 ms at rated voltage
- Contact rating: Make/carry 7500 VA/W for 3 s (max 30 A/660 V); continuous 1250 VA/W (max 5 A/660 V); break 1250 VA AC or 100 W DC resistive (verify datasheet for inductive)
- Operating temperature: -25 to +70 °C typical for MVAJ series
- Mounting: Midos case (size 2 or equivalent drawout)
- Cut-off: Internal break contact in series with coil for instantaneous cut-off after operation (reduces burden to zero)
- Insulation: >10 MΩ at 500 V DC standard test
⚠️ Discontinued; limited stock – alternatives include current MVAJ053/MVAJ103 series
Product Introduction
Older MVAJ13 variants like the D1GB0780A served as hand-reset interfaces in protection panels where a protection relay trips one or more breakers, and manual reset ensures lockout until fault clearance.
This low-burden hand-reset model fits applications without long cable runs prone to capacitance issues — it operates reliably on lower initiating currents. The hand-reset flag provides clear visual indication of trip state. Since the MVAJ 11-34 range is discontinued, verify compatibility with newer MVAJ05x/10x equivalents before specifying for replacements; check contact wiring and burden needs against your original scheme drawings.
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