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| Model | Number of Poles | Contact Configuration | Compatible Contactors |
| AU-1 | 2 | 1NO + 1NC | UKC(D)1-9 to UKC(D)1-85 |
| AU-100 | 2 | 1NO + 1NC | UKC(D)1-100 to UKC(D)1-220 |
AU-4 Auxiliary Contact Block 4 Contact 2NC + 2NO Front Mount
Contactor auxiliary contacts are functional accessories designed to work with the main contactor unit.
By providing additional Normally Open (NO) or Normally Closed (NC) contact sets, they enable signal transmission, status feedback, and equipment interlocking within control circuits.
Their core function is to expand the control capabilities of the contactor, meeting the demands for precise operation and enhanced safety protection in electrical systems.
Free Quote NowKey Features
- Robust Construction: Features an insulated base, silver alloy contacts (ensuring low resistance and long service life), and wiring terminals.
- Flexible Contact Configuration: Offers versatile options including 1-pole (1NO/1NC), 2-pole (2NO/2NC or 1NO+1NC), and more to meet various control requirements.
- Tool-free Mounting: Designed with a “snap-on” or “plug-in” mechanism for direct attachment to the side or top of contactors, enabling quick installation without additional tools. Compatible with mainstream contactor models from the same brand.
Application
- Motor Control – For self-locking and interlocking in forward/reverse circuits
- Status Monitoring – Real-time feedback to PLCs and alarm systems
- Building Automation – Multi-system interlocking (e.g., lighting with ventilation)
- HVAC & Elevators – Equipment status transmission and control linkage
- Industrial Safety – Emergency stop chains and equipment protection
- Energy Management – Power distribution monitoring and load control
Auxiliary Contact Block - Side Mounting Type
Auxiliary Contact Block - Top Mounting Type
| Model | Number of Poles | Contact Configuration Options | Compatible Contactors |
| AU-2 | 2 | 2NO, or 1NO+1NC | UKC(D)1-9 to UKC(D)1-85
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| AU-4 | 4 | 4NO, 3NO+1NC, 2NO+2NC, 1NO+3NC, or 4NC |
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