ABB 3BHB007445P0001 Power Control Interface Board

Product Brief Introduction 3BHB007445P0001 is an internal interface board for ABB high‑power converter units. It undertakes analog sampling of voltage/current signals, signal conditioning and transmission between main control board and power unit. It realizes signal isolation and fault signal transfer, acting as signal bridge between control logic and power hardware inside converter cabinet.

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Technical Specifications

Eight relay dry-contact digital outputs. Output rating 250 V AC or 30 V DC at 2 A per channel. Module supply 24 V DC from backplane. Communication RS-485 Modbus RTU, optional Profibus DP via CEX-Bus. Indicators power, comm, per-channel output, fault LED. Hot-swap supported. Operating temperature -20 to +70 C. Storage temperature -40 to +85 C. Protection IP20. Weight 0.25 kg. Certifications CE, UL, cUL, CSA.

Functional Features

Relay on-off and edge-trigger output modes. Inductive and capacitive load driving. Motor interlock logic via Control Builder M. Backplane power feed to LD I/O cluster.

Application Scenarios

Pump and fan motor control. Discrete process output. AC 800M rack I/O expansion. LD-series I/O power feed.

Material and Structure

Low-density I/O module with slide-lock DIN or rack mechanism. Galvanically isolated relay outputs.

Installation Requirements

Insert into AC 800M LD I/O station or DIN rail carrier. 24 V DC backplane only. Do not exceed 2 A per channel.

Usage Notes

Relay life limited by switching frequency. Verify load type before parallel wiring. R0001 revision is not field-upgradable to later LD firmware.

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