Overview
The Allen-Bradley 592-C1DA is a eutectic alloy SMP-3 solid-state overload relay designed for NEMA size 0/1 motor starters. This discontinued surplus unit delivers proven motor protection and control for legacy industrial automation systems. The 592-C1DA features automatic/manual reset with field-selectable trip class ratings, making it ideal for retrofit and replacement applications where original Bulletin 509 NEMA starters require overload protection.
Key Features
- Current Rating: 1.0–2.9 Amps (adjustable via heater element selection)
- SMP-3 Protection: Phase loss, jam, ground fault, and overload detection
- Reset Options: Automatic/Manual reset (user-selectable)
- Trip Class Selection: Field-selectable classes 10, 15, 20, or 30
- Optical Indicator: Visual trip indication for quick status verification
- Solid-State Design: Reliable electronic circuit protection without moving parts in main circuit
- NEMA Certification: UL Listed and CSA Certified for North American applications
- Mount Option: Panel mount or direct mounting to Bulletin 509 contactor
Technical Specifications
| Part Number | 592-C1DA |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Type | Eutectic Alloy Overload Relay, SMP-3 Solid-State |
| Current Range | 1.0–2.9 Amps |
| Trip Classes | 10, 15, 20, 30 (field-selectable) |
| Reset Method | Automatic/Manual (selectable) |
| Compatible Starter Sizes | NEMA 0, 1 |
| Contact Configuration | Normally Closed (N.C.) |
| Coil Voltage (Recommended) | 120 or 240 V AC |
| Operating Temperature | −20°C to +60°C (−4°F to +140°F) |
| Certifications | UL Listed, CSA Certified |
| Status | Discontinued by Manufacturer |
| Mounting | Panel mount or contactor-mounted |
| Protection Features | Phase loss, jam, ground fault, overload |
Typical Applications
- Retrofit protection for legacy NEMA size 0/1 three-phase motor starters
- Small-to-medium fractional-horsepower motor circuits (1–3 HP range)
- Industrial machinery control and automation systems
- Panel-mounted or contactor-based motor protection in manufacturing facilities
- Replacement in existing Bulletin 509 starter installations
- Field-selectable trip class configuration for variable load protection
Compatibility & Replacements
Compatible With
- Bulletin 509 NEMA three-phase full-voltage starters (sizes 0 and 1)
- NEMA size 0/1 contactor assemblies
- Panel-mounted control circuits with 120 or 240 V AC coil supply
- Legacy industrial motor control systems requiring eutectic alloy overload relays
- Manual and automatic motor starting applications
Replaces / Drop-In Replacement For
The 592-C1DA serves as a direct replacement in Bulletin 509 NEMA starters requiring an SMP-3 solid-state overload relay in the 1.0–2.9 A range. Verify compatibility with your system integrator before ordering, as mounting plate modifications may be required for retrofit to existing starter assemblies.
Works With
- Allen-Bradley Bulletin 509 three-phase starters and contactors
- Manual and push-button control stations
- Soft-start and VFD input/output filtering systems
- PLC and SLC ladder logic control programs (via remote reset terminals)
- DIP switch configuration for trip class selection without device removal
