ABB BCU-12 3AUA0000110430 Breaker Control Unit / Protection Interface

FAQ

Q1: What is the primary function of the ABB BCU-12?
It provides control and status interface for circuit breakers, enabling automated control, monitoring, and integration with protection logic.

Q2: What types of signals does the BCU-12 handle?
It handles digital control inputs (breaker open/close), monitored auxiliary contact inputs, and discrete status outputs (breaker position and alarms).

Q3: How are field devices connected to the BCU-12?
Connections are made via screw terminal connectors for power supply, control inputs, and status outputs.

Q4: What supply voltage does the BCU-12 use?
It typically uses a DC control supply, such as 24 V DC.

Q5: Does the BCU-12 provide status indication?
Yes, it supports status outputs which can be used to signal breaker position, trip status, and alarms to higher-level control systems.

Q6: Where is the BCU-12 typically installed?
It is installed inside industrial control cabinets, motor control centers, or switchgear near breaker control wiring.

Q7: Can the BCU-12 operate in industrial environments?
Yes, it is designed for use in industrial automation and control cabinet environments within its specified temperature range.

Q8: What are the physical dimensions and weight of the BCU-12?
The control unit measures approximately 90 mm × 70 mm × 60 mm and weighs about 0.26 kg.

3AUA0000110430 ABB BCU-12

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