ABB 1SSS444711R1100 clip-on auxiliary contact accessory
1SSS444711R1100 is clip-on auxiliary contact accessory designed for ABB standard AC contactor series. It can be snapped onto the front or side of matched contactor to expand additional auxiliary contacts for equipment interlock and running status feedback. Brand-new original products and fully inspected refurbished items are available for control cabinet assembly and on-site equipment maintenance replacement.
Description
Product Introduction
1SSS444711R1100 is clip-on auxiliary contact accessory designed for ABB standard AC contactor series. It can be snapped onto the front or side of matched contactor to expand additional auxiliary contacts for equipment interlock and running status feedback. Brand-new original products and fully inspected refurbished items are available for control cabinet assembly and on-site equipment maintenance replacement.
Model Definition
1SSS is fixed part number prefix for ABB low voltage auxiliary component coding. 444711 is the base hardware specification code of this auxiliary contact block. Suffix R1100 refers to factory standard hardware revision and default contact configuration. Other revised suffix versions only adjust minor internal fittings without changing mounting dimension and electrical specifications.
Technical Specifications
Rated applicable control voltage reaches AC/DC 250V. Equipped with snap-in mounting structure compatible with corresponding ABB contactor types. Operating ambient temperature ranges from -20℃ to +60℃, storage temperature is -40℃~+85℃, relative humidity keeps 5%~95% under non-condensing environment. Protection grade is IP20, the product meets IEC and CE industrial certification standards with long mechanical switching life.
Interface and Communication Configuration
Screw wiring terminals are reserved for external control cable connection. No integrated communication or fieldbus port onboard, all signal transmission is realized through hard wiring with peripheral control components.
Core Functions
Carry out synchronous opening and closing actions following mechanical movement of paired main contactor. Provide isolated switching signals for PLC running feedback, indicator lamp driving and safety interlock circuit when the contactor’s inherent auxiliary contacts are insufficient for control logic design.
Application Scenarios
Commonly installed inside motor control cabinets of pumps, fans and compressors, low voltage distribution panels in chemical, metallurgy and water treatment industries to realize logic interlock and equipment operating signal output.
Operation and Maintenance Instructions
Cut off control circuit power before installing or detaching the contact block and wait for residual voltage release. Conduct semi-annual maintenance by cleaning terminal dust with dry compressed air and tightening wiring screws regularly. If abnormal contact operation occurs, check snap mounting status prior to component replacement, avoid overloaded current to prevent contact ablation.
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