Overview
The Allen-Bradley 100-MC auxiliary contact block is a proven electromechanical accessory for expanding the control logic of bulletin 100 contactors. Rated for 600VAC at 10 amps, this Series B unit provides a single normally open (1NO) contact for interlocking, pilot circuit monitoring, or auxiliary signal functions in industrial control panels. Built to Allen-Bradley standards, the 100-MC integrates seamlessly into existing automation systems.
Key Features
- Voltage rating: 600VAC maximum (AC-12 category)
- Current capacity: 10 amps
- Single NO contact configuration for logic expansion
- Series B specification ensures interchangeability with legacy systems
- Compact form factor for space-constrained panel layouts
- Designed for mounting on bulletin 100-C contactors
Technical Specifications
- Voltage Rating: 600VAC
- Current Rating: 10 amps
- Contact Type: 1NO (Normally Open)
- Series: B
- Mounting: Top/side mount on 100-C contactor
- Weight: 40 grams
- Standards Compliance: IEC 60947-5-1, EN 60947
- Manufacturing Origin: Switzerland
Typical Applications
- Interlocking circuits to prevent simultaneous operation of multiple devices
- Pilot circuit signaling and status indication
- Auxiliary control logic in motor starter panels
- HVAC, pump, and fan control systems
- Machine tool and production equipment automation
- Industrial distribution and switchgear control
Compatibility & Replacements
Compatible With
- Allen-Bradley bulletin 100-C contactors
- Allen-Bradley 700-C control relays
- Bulletin 100 contactor systems (AC-12 duty)
- Standard 600V industrial control circuits
Replaces / Drop-In Replacement For
- Allen-Bradley 100-MC Series A (earlier designation)
- Other single NO auxiliary contacts rated 600VAC, 10A for bulletin 100 contactors
- Verify compatibility with your system integrator for legacy substitutions
Works With
- Manual control circuits and hardwired logic
- PLC input modules via isolated contacts
- NEMA-rated industrial control systems
- AC motor starter and combination circuits
- Bulletin 100 mechanical interlocking systems
