Overview
The Reliance 0-51851 CRCA regulator board is a control regulator module designed for Reliance Electric MaxPak and CRCG drive systems. This PC board component features a front faceplate with two set screws for secure mounting within standard rack systems, making it a reliable choice for industrial motion control applications requiring precise speed and acceleration regulation.
Key Features
- Eight rotary adjustment dials with settings from 0–10 for independent control
- Front faceplate with secure set-screw mounting to rack enclosures
- Eight potentiometers on circuit board connected to faceplate dials
- Dial functions: max speed, min speed, rate 1, rate 2, jog speed, limit 1, limit 2, and stability
- Reliance Electric standardized hardware (capacitors, diodes, resistors)
- Compatible with MaxPak, MaxPak Plus, and legacy Reliance drive systems
Technical Specifications
- Part Number: 0-51851-6 / 0-51851-3 / 0-51851
- Product Type: Regulator Control Board / CRCA Module
- Adjustment Dials: 8 (range 0–10)
- Potentiometers: 8 front-edge mounted
- Mounting: Faceplate with 2 set screws
- Compatible Series: MaxPak, MaxPak Plus, CRCG, VS Spindle Drives
- Board Type: PC (Printed Circuit) Control Board
Typical Applications
- Industrial AC motor speed control and regulation
- Drive system acceleration and deceleration adjustment
- Legacy MaxPak system replacements and repairs
- Precision speed limiting and jog control
- Manufacturing and motion control systems requiring fine-tuned drive settings
Compatibility & Replacements
Compatible With
- Reliance Electric MaxPak drive systems
- Reliance MaxPak Plus systems
- CRCG card frameworks and enclosures
- VS Spindle Drive series
- AutoMax PLC controlled environments
- Standard 19-inch industrial racks
Replaces / Drop-In Replacement For
- 0-51851-3 (CRCA Control Regulator)
- 0-51851-6 (CRCG Regulator Module)
- Original equipment regulator boards in MaxPak systems
- Legacy Reliance regulator cards marked with Reliance, Baldor-Reliance, or ABB variants
Works With
- Reliance AutoMax PLC programming
- Industrial standard AC motor drives
- Standard electrical enclosure mounting systems
- Legacy control architectures using discrete regulator modules
- Manual and automated speed control interfaces
