Overview
The Allen-Bradley 592-C1DA SMP-3 is a solid-state overload protection relay engineered for NEMA size 0 and 1 motor starters in industrial control systems. This used unit combines proven solid-state reliability with selectable trip characteristics to safeguard motors and connected equipment against thermal overload conditions. With UL and CSA certifications, the 592-C1DA meets industrial safety standards and delivers dependable protection in harsh manufacturing environments.
Key Features
- Field-Selectable Trip Classes: Trip classes 10, 20, 30 allow adjustment to motor-specific protection curves without component replacement
- Automatic/Manual Reset: Automatic/Manual reset method provides flexibility for both attended and unattended startup scenarios
- Trip-Free Mechanism: Provides overload protection even when the reset button is pressed
- Optical Indicator: Yes, for visible trip indication enables quick field diagnosis without instrumentation
- Solid-State Design: SMP-3 Solid State Motor Protection: Yes eliminates mechanical wear and extends service life
- Panel or Starter Mount: Automatic/Manual Reset, Field Selectable Trip Class 10, 15, 20 or 30, Jam Protection, Ground Fault Tripping with flexible mounting options
Technical Specifications
- Relay Type: Eutectic Alloy Overload Relay
- Current Range: 1.0-2.9 Amps
- Reset Method: Automatic/Manual
- Trip Classes: Field selectable, trip classes 10, 20, 30
- Contact Configuration: Normally Closed (N.C.)
- Mounting: NEMA configurations
- Suitable For: Suitable for NEMA size 0/1 starter
- Operating Temperature: -20°C to +60°C
- Certifications: UL Listed CSA Certified
Typical Applications
The Allen-Bradley 592-C1DA is ideal for motor protection in fractional and small integral horsepower applications including:
- HVAC fan and pump motors in building control systems
- Conveyor drive motors rated under 3 amps
- Small packaged compressor motors
- Laboratory and machine tool spindle drives
- OEM equipment integrating compact motor starters
- Retrofit upgrades replacing mechanical overload relays on existing NEMA size 0/1 starters
Compatibility & Replacements
Compatible With
- Allen-Bradley NEMA Size 0 and 1 Motor Starters
- Bulletin 913 and Bulletin 592 motor control platforms
- Standard 120V and 240V AC control circuits
- Single-phase and three-phase motor systems rated within 1.0–2.9 amp range
Replaces / Drop-In Replacement For
Prior solid-state overload relays with similar mounting footprints and 1.0–2.9 amp ratings. Verify exact mounting compatibility and terminal layout with your system integrator before installation. The SMP-3 series is interchangeable within the Bulletin 592 family at matching amperage ratings.
Works With
- Bulletin 592 SMP-3 solid-state motor protection platform
- Allen-Bradley motor starter line-up (size 0, 1)
- Jam and ground fault protection circuits
- Standard industrial AC control voltages (120V, 240V AC)
