Get the original ABB 1MRK000173-BCR00 binary input circuit board for protective relays and bay control systems. Brand New original stock with global shipping. Maintain your substation automation reliability today.
The ABB 1MRK000173-BCR00 (1MRK000173-BCR00) is a high-density, optically isolated binary input card developed for ABB’s substation automation platforms, bay control assemblies, and Relion® series Intelligent Electronic Devices (IEDs). This hardware monitors discrete field states—such as circuit breaker auxiliary contacts, disconnector switches, and external trip commands—converting raw high-voltage substations telemetry into deterministic digital signals.
| Parameter | Specification |
|---|---|
| Model | 1MRK000173-BCR00 |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.34 kg |
| Dimensions | 23.2 x 16.8 x 1.5 cm |
| Operating Temperature | -40 to 70 deg C (extended substation profile) |
| Module Type | Discrete / Binary Input Module |
| Nominal Input Threshold | Configurable variants (e.g., 24-48 VDC, 110 VDC, 220 VDC) |
| Communication Bus | High-speed intra-device serial/parallel bus backplane |
| Isolation Rating | Galvanic isolation up to 2.5 kV AC between channels and logic |
| Debounce Filtering | Software/hardware adjustable (1 to 50 ms default range) |
| Protective Coating | Standard conformal coating for harsh environments |
The 1MRK000173-BCR00 utilizes a rugged channel architecture where every independent binary input circuit is protected by its own optocoupler. When an external DC voltage loop closes (e.g., a breaker contact closes), current passes through an internal current-limiting resistor network and illuminates an internal LED, passing the state change across a physical gap to a phototransistor.
This optical barrier prevents extreme high-voltage surges, lightning transients, and inductive switching spikes from passing into the sensitive microprocessor bus.
Q: What is the main difference between a standard PLC input card and this substation-grade binary module?
A: Substation binary input modules like the 1MRK000173-BCR00 are built to meet strict IEC 60255 standards. They handle high ambient temperatures, wide DC battery voltage fluctuations, and severe electromagnetic interference (EMI) without generating ghost trips or dropping data packets.
Q: How do you adjust the input threshold voltage to match station battery banks?
A: The activation threshold is set using physical jumpers on the board or through software configuration in ABB’s PCM600 tool. Proper threshold adjustments ensure that the card ignores induced AC leakage voltages across long field cables while cleanly reading legitimate DC battery signals.
Q: Can this specific card be hot-swapped while the main protective IED is monitoring an active feeder?
A: No. Removing or inserting an IED module while the bay controller is powered can disrupt the internal processor bus, cause a temporary watchdog reset, or drop protection loops. Always power down the subrack before replacing the card.
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