Overview
The Allen-Bradley 592-C1DA is a discontinued solid-state overload relay designed for motor protection and load monitoring in industrial control systems. Series A with 0.7–2.5A field-selectable trip current and SMP-3 solid-state operation, this relay provides fast response and reliable protection without moving contacts or mechanical wear. Suitable for OEM equipment updates and legacy panel upgrades where space and performance matter.
Key Features
- Solid-state design eliminates mechanical contacts and reduces maintenance
- Field-selectable current range: 0.7–2.5A for flexible motor sizing
- SMP-3 configuration with manual and automatic reset modes
- Series A model suitable for Size 0 and Size 1 motor starters
- Compact footprint for tight control enclosure installations
- Built-in memory of setpoint; retains trip level across power cycles
Technical Specifications
- Current Range: 0.7–2.5A field-selectable
- Type: Solid-state overload relay
- Configuration: SMP-3 (Solid Motor Protector)
- Reset Options: Manual and automatic
- Series: Series A
- Mounting: DIN rail or direct control enclosure installation
- Status: Discontinued by manufacturer
Typical Applications
The 592-C1DA is widely used in:
- Motor starter panels for industrial machinery and equipment
- Legacy OEM system retrofits and maintenance replacements
- Compressed air systems, pump motor protection, and conveyor drives
- HVAC and process control systems requiring reliable overload sensing
- Manufacturing environments where downtime reduction is critical
Compatibility & Replacements
Compatible With
- Allen-Bradley Size 0 and Size 1 full-voltage magnetic motor starters
- ABB, Siemens, and other legacy control enclosures with standard relay sockets
- Standard auxiliary contact configurations for 120V, 240V, and 480V control circuits
- Motor nameplate ratings from 0.7A to 2.5A single-phase or three-phase motors
Replaces / Drop-In Replacement For
- Allen-Bradley 592-A1CA (0.32–1.0A SMP-1)
- Honeywell and Square D equivalent overload relays with SMP-3 configuration
- Original equipment overload modules in Allen-Bradley starter packages
Works With
- Allen-Bradley motor control center (MCC) buckets and sections
- Industrial relay and contactor logic circuits
- Standard NEMA-rated control transformers and auxiliary relays
- Manual and programmable logic controllers (PLC) monitoring via hardwired trips
