MVAJ13D1GB1024A ALSTOM

Model: MVAJ13D1GB1024A
Brand: Alstom (GE Grid Solutions lineage)
Series: MVAJ 11 to 34 Tripping and Control Relays
Core Function: Hand-reset tripping for protection and control schemes
Type: Low burden auxiliary tripping relay (hand reset with flag indicator)
Key Specs: 10 contacts typical, low burden (EB1 class), operate time <10 ms typical, hand reset manual

Alstom MVAJ13D1GB1024A is a low-burden hand-reset tripping relay in the MVAJ series, deployed in substation and industrial protection panels where capacitance discharge immunity isn’t critical. It latches on trip signal, holds contacts until manual reset, and multiplies outputs for breaker trip, alarm, or interlock functions.

Low-burden design keeps continuous power draw low after operation—no economizing circuit needed. Suited for panel-internal or short-run applications; faster and simpler than high-burden counterparts like MVAJ23. Flag provides clear latched-state indication. Note: discontinued by GE Grid—use MVAJ053 or MVAJ103 as modern drop-ins where possible; verify exact contact arrangement and voltage on nameplate before install.

Operate speed <10 ms typical, ensuring quick breaker command in fault conditions
Test report supplied: incoming serial/label check, visual inspection (no corrosion/aging), coil energize/latch, reset cycle, full contact continuity map, 24-hour latched hold on simulator rack
Offers hand-reset security over self-reset types—prevents auto-reclose in lockout schemes without operator intervention
Not recommended for high-capacitance or long-cable DC circuits—switch to high-burden MVAJ23/25 to avoid false trips from discharge currents
Contacts rated for 10,000 loaded operations minimum per GE Grid reference
Insulation tested >10 MΩ at 500 V megger; full functional verification with photos of test setup and results

Frequently Asked Questions

What’s the voltage rating for Alstom MVAJ13D1GB1024A? Commonly 110-125 V DC or similar ranges in MVAJ13 variants—check nameplate or coil resistance. Send label photo if needed; datasheet lists operative ranges like 87.5–137.5 V for some 110 V models. Wrong voltage risks non-operation or coil damage.

Can this be a direct replacement in an old MVAJ13 scheme? Typically yes—same series footprint and function. Photograph existing wiring, reset flag position, and contact assignments first. In field swaps, most are plug-compatible if burden and voltage align; test latch and reset before full service.

How many contacts and what configuration on MVAJ13D1GB1024A? 10 contacts standard (mix of make/break, max 8 breaks). Exact NO/NC layout varies by suffix—verify against wiring diagram or continuity test on arrival. Common setups support full trip/alarm multiplication.