Overview
The ABB CA5-10 auxiliary contact block is a single-pole front-mounted accessory designed for integration with ABB contactor systems. This 1NO (normally open) instantaneous contact block provides reliable auxiliary switching for control circuits, feedback signaling, and interlocking applications in standard industrial environments. The CA5-10 features screw clamp terminals for secure, tool-friendly installation on compatible ABB contactors.
Key Features
- 1 normally open (N.O.) instantaneous contact for auxiliary circuit control
- Front-mounted design for easy accessibility and maintenance
- Screw clamp terminals ensure reliable, corrosion-resistant connections
- Rated operational voltage up to 690V for main and auxiliary circuits
- Mechanical durability rated to 10 million operations
- Maximum switching frequency of 1200 cycles/hour (electrical), 3600 cycles/hour (mechanical)
Technical Specifications
- Contact Configuration: 1 N.O. (normally open)
- Voltage Rating: 24–690V AC/DC auxiliary circuit
- Current Rating: 6A at 24–127V; 2A at 500–690V
- Mounting: Front-mounted on A series and N series contactors
- Terminal Type: Screw clamp
- Operating Frequency: 50/60 Hz
- Electrical Switching Frequency: 1200 cycles/hour max
- Mechanical Switching Frequency: 3600 cycles/hour max
- Mechanical Durability: 10 million operations
- Protection Degree: IP20
- Rated Insulation Voltage: 690V (IEC 60947-5-1); 600V (UL/CSA)
- Dimensions: 0.4 in H × 1.8 in W × 1.4 in D
Typical Applications
- Motor control auxiliary circuits and interlocking
- Equipment start/stop feedback and status indication
- Contactor coil supplementary switching for multi-stage control
- Plant automation and process control systems
- Machinery safety and protective interlocking circuits
Compatibility & Replacements
The CA5-10 is designed for direct front mounting on ABB A-series contactors (A9–A110, AF45–AF110) and N-series contactor relays (T9, TAL9–T40, TAE45–TAE75). This lot includes three units, ideal for multi-machine installations or spare inventory. As a new, open-box surplus item from a family-owned industrial supplier, each block is fully functional and ready for immediate deployment. Drop-in compatibility with original ABB equipment eliminates design and wiring modifications.
