ABB 1MRK000614-ABr02 Binary Output Module

Configured for high-density command execution, alarm tripping, and interlocking control within ABB Relion protection IED sub-racks, the ABB 1MRK000614-ABr02 (1MRK000614-ABr02 Binary Output Module) provides direct physical/electrical execution.

Hardware Specifications

Substation Automation and Digital Command Execution

Binary output modules serve as the physical interface between microprocessor-based protection relays and high-voltage substation switchgear. The 1MRK000614-ABr02 incorporates 24 high-speed electromechanical output relays, providing galvanically isolated contact closures for circuit breaker trip signals, isolator control commands, and remote telemetry alarms. High-grade contact materials minimize contact resistance and prevent arc welding under inductive control loads, ensuring compliance with strict industrial EMC standards in high-EMI substation environments.

Frequently Asked Questions

Q: What communications protocols are supported directly by the 1MRK000614-ABr02 module?

A: The module executes output commands over the internal backplane bus; protocols such as IEC 61850, DNP3, and Modbus RTU/TCP are handled natively by the host Relion relay processor.

Q: Can the 1MRK000614-ABr02 be used for direct tripping of heavy trip coils?

A: The contacts are rated up to 2 A continuous at 250 VAC / 30 VDC. For high-energy direct breaker trip coils requiring higher inductive breaking capacity, standard heavy-duty trip output modules or interposing relays should be utilized.

Field Installation Guidelines

• Isolate all trip, control, and station auxiliary DC supply circuits before installing or removing the output module.

• Wear an Electrostatic Discharge (ESD) grounding wrist strap connected to cabinet frame ground during handling.

• Insert the module smoothly into its designated rear chassis slot along the guide rails until backplane multi-pin connectors fully lock.

• Tighten front panel retaining screws to 0.6 Nm to ensure mechanical retention and backplane shield grounding against EMI transients.

• Connect external control wiring to the rear pluggable terminal blocks, taking care not to exceed the maximum 2 A contact current rating per channel.