Overview
The Cutler Hammer C10BN3 /A1 is a compact, non-reversing magnetic contactor that meets NEMA Size 0 standards. This contactor is designed for reliable industrial switching in motor control circuits, process automation, and equipment on-off applications. It features an electromagnet coil rated 110/120V at 50/60Hz and includes three main poles for three-phase motor control and other industrial loads.
Key Features
- NEMA Size 0 frame for compact mounted control
- Non-reversing magnetic contactor design
- 110/120V AC 50/60Hz control coil voltage
- Three-pole configuration for three-phase loads
- Horizontal mounting, open enclosure form
- Proven Eaton Cutler-Hammer industrial-grade construction
Technical Specifications
- NEMA Size: 0
- Poles: 3
- Coil Voltage: 110/120V AC
- Frequency: 50/60Hz
- Contactor Type: Non-reversing
- Enclosure: Open/Horizontal Mounting
- Weight: 1.70 lbs
- Manufacturer: Eaton Cutler Hammer
- Status: Discontinued by Manufacturer
Typical Applications
The C10BN3 /A1 contactor is commonly used in:
- Motor starters and full-voltage motor control circuits
- Heating/cooling equipment control
- Pump and compressor on-off switching
- Industrial automation and machinery control
- Equipment sequencing and interlock circuits
- Panel-mount control systems requiring reliable contactors
Compatibility & Replacements
Compatible With
- NEMA ICS 2-2000 standard control systems
- 110/120V AC control circuits (50/60Hz)
- Three-phase motor applications up to Size 0 rating
- Industrial control panels and enclosures
- Eaton motor starter assemblies and combination starters
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The /A1 series designation indicates a specific revision—confirm your existing part number matches C10BN3 /A1 exactly to ensure proper fit and electrical specifications.
Works With
- NEMA control relay logic circuits
- Eaton Cutler Hammer overload relays (C306 thermal types)
- Standard 110/120V AC control power supplies
- Manual and automatic starter assemblies
- Industrial control enclosures and DIN-rail systems






