Overview
The Cutler-Hammer C10BN3 is a NEMA Size 0 magnetic contactor designed for non-reversing motor control and industrial electrical applications. This 3-pole unit features a 110/120VAC coil and is built for reliability and long operational life in standard industrial environments. As a classic Cutler-Hammer contactor, it provides straightforward on-off switching capability for small- to medium-horsepower motors and loads.
Key Features
- NEMA Size 0 frame—compact form factor for space-constrained installations
- 3-pole, non-reversing configuration for single-direction motor control
- 110/120VAC 50/60Hz coil voltage
- 18A contact rating at 600V maximum
- Long-life twin-break contacts for extended service life
- Horizontal, open (no enclosure) mounting design
Technical Specifications
- Contactor Type: Non-Reversing Magnetic
- Size/Frame: NEMA Size 0
- Poles: 3
- Coil Voltage: 110/120VAC, 50/60Hz
- Contact Rating: 18A at 600V
- Maximum Voltage: 600V AC
- Weight: 1.70 lbs
- Mounting: Horizontal, open (no enclosure)
- Electrical Operations Life: 3 million operations (NEMA Size 0 standard)
- Manufacturer: Eaton Corporation (Cutler-Hammer Division)
Typical Applications
The C10BN3 is well-suited for:
- Motor control circuits for fractional- to small horsepower motors
- Pump and compressor starters in industrial facilities
- HVAC fan and blower control
- General-purpose load switching in control panels
- Retrofit and replacement service in existing installations
Compatibility & Replacements
Compatible With
- NEMA-rated motor control circuits and starters
- Standard industrial control panels and enclosures
- 120V AC control power supplies and pilot devices
- Auxiliary contact blocks and add-on modules (where mechanically compatible)
Replaces / Drop-In Replacement For
The C10BN3 is a legacy part number. Verify compatibility with your system integrator before ordering for replacement applications, as newer NEMA Size 0 contactors may require panel modifications or differ in mounting geometry.
Works With
- NEMA-standard push-button stations and selector switches
- Pilot control circuits up to 120V AC
- Thermal overload relays and electronic protection devices
- Standard industrial 3-wire motor control schemes
