Overload Protection Relays

Allen Bradley AB 8-37A SMP-3 Solid State Overload Relay 592-C1HA /B

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$1,194.99

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Overview

The Allen-Bradley 592-C1HA is a solid-state overload relay part of the 592 series by Rockwell Automation, designed for size 0 and 1 starters with an adjustable current range from 7 to 37 Amps. This SMP-3 model combines compact solid-state electronics with comprehensive motor protection features, making it ideal for drop-in replacement applications in existing control systems and new installations requiring reliable overload and fault protection.

Key Features

  • Advanced protection functions including phase loss, jam, and ground fault protection with automatic and manual reset options
  • Selectable trip class 10/15/20/30 with DIP switch configuration
  • Communication-capable status indicator for seamless integration with external control systems
  • 120 to 240 Volts AC rated coils suitable for controlled environments with humidity below 95 percent
  • Microprocessor-based design enabling flexible trip class and reset mode selection
  • Suitable for Bulletin 509 starters in NEMA 0-1 frame sizes

Technical Specifications

The 592-C1HA provides NEMA 0-1 sizing and 7-37 Amp adjustable range with automatic/manual reset capability. The relay incorporates DIP switch-selectable trip configurations and supports both standard and specialized protection modes. This makes the unit adaptable to various motor control applications while maintaining consistent response characteristics across different load profiles.

Typical Applications

  • Three-phase motor starter overload protection
  • Industrial machinery and production equipment motor control
  • HVAC system motor protection
  • Pump and compressor motor control circuits
  • General industrial automation and control systems requiring compact, solid-state protection

Compatibility & Replacements

Compatible With

  • Allen-Bradley Bulletin 509 motor starters (NEMA sizes 0 and 1)
  • Bulletin 500 line contactors
  • Three-phase motor control circuits rated 120–240V AC control voltage
  • Industrial control systems requiring DIP-configurable overload protection

Replaces / Drop-In Replacement For

Verify compatibility with your system integrator before ordering.

Works With

  • Allen-Bradley SMP-3 motor starter systems
  • Standard three-phase motor control applications
  • Circuits requiring NEMA-compliant overload and ground fault protection
  • Industrial control panels configured with manual or automatic reset requirements
Condition

Used

Manufacturer

Allen-Bradley / Rockwell Automation

Model/Part Number

592-C1HA

Series

Bulletin 592 SMP-3

Product Type

Solid State Overload Relay

Current Range

7 to 37 Amps (adjustable)

Coil Voltage

120 to 240 Volts AC

Suitable For

NEMA Size 0-1 Starters

Trip Classes

10, 15, 20, 30 (DIP selectable)

Reset Options

Automatic and Manual

Protection Features

Phase Loss, Jam/Stall, Ground Fault

Configuration

DIP Switch Selectable

Operating Humidity

Below 95% RH

Technology

Microprocessor-Based Solid State

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