Products Description




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Technical Specifications
| Item | Specification |
|---|---|
| Model | ABB BCU-12 (Ordering No. 3AUA0000110430) |
| Type | Breaker Control Unit / Protection Interface |
| Product Category | Protection & Control Module |
| Product Family | ABB Auxiliary Control / Interlock Devices |
| Function | Provides breaker control, status monitoring, and auxiliary logic interface |
| Control Inputs | Digital control inputs for breaker open/close commands |
| Status Outputs | Discrete outputs for breaker position, trip, and alarm indications |
| Auxiliary Contact Inputs | Monitored inputs from breaker auxiliary contacts |
| Protection Interface | Integrates with protection relays, interlocks, and PLC logic |
| Supply Voltage | DC control supply (typically 24 V DC) |
| Field Wiring Connection | Screw terminal connectors for power, inputs, and outputs |
| Mounting Method | DIN rail or panel mount inside control cabinets |
| Operating Temperature Range | 0 °C to +60 °C |
| Storage Temperature Range | –20 °C to +70 °C |
| Protection Rating | IP20 |
| Housing Material | Industrial-grade plastic |
| Application Environment | Motor control centers, switchgear, automation panels |
| Compatibility | Circuit breakers with auxiliary contacts and discrete control logic |
| Dimensions | Approx. 90 mm × 70 mm × 60 mm (W × H × D) |
| Weight | Approximately 0.26 kg |
FAQ
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.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
