1. Product Model

• Model No.: 0-51839-13 (also written as 05183913)

2. Brand

• Brand: Reliance Electric (Baldor / ABB Group)

3. Product Category

• Category: Industrial Drive Relay Interface Board

• General Type: IRCP (PC Relay) Board / Drive System Auxiliary Control Board

4. Alias & Official Name

• Official Name: IRCP PC Relay Board (Input Relay Control Panel Board)

• Other Names: Relay Driver Interface Card, Output Relay Module Board

• Alternative Compatible P/N: 0-51839-1, 0-51839-2, 0-51839-11, etc.

5. Basic Information

• Manufacturer: Reliance Electric, USA

• Structure: Standard 19-inch rack-mount plug-in PCB with front panel and terminal block

• Weight: Approx 0.35 kg (0.77 lbs)

• Dimensions: 254 × 178 × 12.7 mm (L × W × H)

• Status: Discontinued, available as OEM spare parts or refurbished units

• NSN: 5998-01-304-3264

6. Function & Positioning

• Core Function: Receives low-level control signals from the main drive controller, provides electrical isolation, amplifies power, and drives on-board relays to switch dry contact outputs for interlocks, start/stop, and safety logic.

• Signal Flow: Main controller logic → Opto-isolation → Relay coil drive → Dry contact output

• Positioning: Relay-based signal isolation and output expansion board for industrial AC/DC drives. Ensures electrical separation between control and power circuits, enabling safe interlocking and external device control.

7. Core Performance Parameters

• Control Power: 115/230 VAC, 50/60 Hz (standard drive internal supply)

• Input Signal: Isolated 24 VDC logic level

• Output: 6-channel relay dry contacts (NO/NC)

• Contact Rating: 5 A @ 240 VAC (resistive load)

• Isolation Voltage: 2500 VAC (input to output)

• Operating Temperature: 0°C ~ +50°C

• Storage Temperature: -40°C ~ +85°C

• Response Time: ≤ 15 ms

• Insulation Class: Industrial grade

8. General Matching Accessories

• Control signal shielded cable

• Drive main control board

• Terminal connectors & wiring harness

• Cabinet mounting slot & brackets

• External interlock switches

9. Applicable Equipment & Industry

• Applicable Equipment:

  • Reliance MaxPak Plus Series DC Drives

  • VS Spindle Drives

  • Industrial AC Vector Drives

  • Heavy-duty Variable Speed Drive Units

• Applicable Industries:

  • CNC Machine Tools

  • Metallurgical & Steel Mills

  • Textile & Printing Machinery

  • Industrial Automation Lines

  • Mining & Heavy Equipment

  • Process Control Systems