ABB cal19-11b side mounted instantaneous aux contact block

Why Choose the ABB CAL19-11B Auxiliary Contact Block?

The ABB CAL19-11B (Part Number: 1SFN010820R3311) is a compact and dependable side-mounted auxiliary contact block designed for ABB AF series contactors from AF116 to AF370. Engineered for industrial automation and motor control applications, the CAL19-11B provides additional auxiliary signalling contacts for control, monitoring and interlocking functions within demanding industrial environments.

Featuring a 1NO + 1NC instantaneous contact configuration, the CAL19-11B enables flexible integration into PLC systems, control circuits and machine automation panels. Its side-mounted clip-on design allows straightforward installation while maintaining compact panel layouts and reliable long-term electrical performance.

Manufactured using ABB’s industrial-grade insulated construction, the CAL19-11B includes secure screw-clamp terminals and IP20 touch protection. It is widely used by panel builders, OEM machinery manufacturers and automation engineers requiring dependable auxiliary contact expansion for large contactors and motor starter assemblies.

Key Advantages

• Provides additional auxiliary signalling contacts for industrial control circuits.
• Compatible with ABB AF116 to AF370 contactors.
• 1NO + 1NC instantaneous contact arrangement.
• Compact side-mounted clip-on design.
• Screw terminal connections for secure wiring.
• Designed for demanding industrial automation systems.

Key Features

• ABB CAL19-11B auxiliary contact block.
• Part number: 1SFN010820R3311.
• 1 normally open and 1 normally closed contact.
• Instantaneous auxiliary contact operation.
• Side-mounted auxiliary accessory.
• Suitable for ABB AF and AFB contactor ranges.
• Screw clamp terminal connection.
• Industrial insulated thermoplastic construction.

Technical Specifications

• Manufacturer: ABB
• Series: CAL Auxiliary Contact Blocks
• Model: CAL19-11B
• Part number: 1SFN010820R3311
• Product type: Auxiliary contact block
• Contact configuration: 1NO + 1NC
• Operation type: Instantaneous auxiliary contacts
• Mounting type: Side mounting
• Compatible contactors: AF116..AF370, AF116B..AF370B
• Connection type: Screw terminals
• Rated operational voltage: 24 to 690 V AC auxiliary circuit
• Protection rating: IP20
• Wire stripping length: 9 mm
• Dimensions (W × H × D): approx. 79 × 67.3 × 14.9 mm
• Weight: approx. 0.04 kg

Reliable Auxiliary Signalling for Industrial Contactors

Auxiliary contact blocks are used to expand the signalling and control functionality of industrial contactors. The ABB CAL19-11B provides additional normally open and normally closed contacts for PLC integration, electrical interlocking, status indication and automation control functions.

ABB contactor accessories are engineered for demanding industrial applications where dependable switching performance and installation efficiency are critical. The CAL19-11B supports flexible and professional control panel assembly while delivering reliable long-term operation within industrial motor control systems.

Typical Applications

• Industrial motor control systems.
• PLC and automation signalling circuits.
• Electrical interlocking arrangements.
• OEM machinery and process automation.
• Industrial control panels and switchboards.
• Contactor status indication systems.

Trusted by Industrial Automation Professionals

ABB auxiliary contact accessories such as the CAL19-11B are trusted worldwide for dependable signalling performance, seamless contactor integration and long-term industrial reliability.