Product Short Description
- Product Name: ABB CAL16-11A Auxiliary Contact Block
- Product Introduction: The CAL16-11A is a 2-pole screw-type auxiliary contact block from ABB, left-side mounted on EK series contactors, providing instantaneous 1 NO (normally open) and 1 NC (normally closed) contact.
- Technical Specifications:
- Manufacturer: ABB
Description
-
- Product type: Auxiliary contact block
- Configuration: 1 NO + 1 NC (2-pole)
- Mounting: Left-side, surface mounted (screw type)
- Conventional free-air thermal current (Ith) acc. to IEC 60947-5-1: 16 A
- Rated operational current AC-15: 6 A @ 220/240 V, 6 A @ 24/127 V, 4 A @ 380/440 V, 1 A @ 500 V, 1 A @ 690 V
- Rated operational current DC-13: 6 A @ 24 V, 1.8 A @ 125 V, 6 A @ 48 V, 4 A @ 72 V, 0.6 A @ 250 V
- Rated breaking capacity acc. to IEC 60947-5-1: 10 × Ie AC-15
- Rated frequency: 50/60 Hz
- Rated short-time withstand current (Icw): 100 A for 0.1 s, 50 A for 1 s
- Rated insulation voltage (Ui): 690 V (acc. to IEC 60947-5-1 and VDE 0110 Gr. C)
- Terminal type: Screw terminals
- Protection class: IP20
- Package dimensions: 100 × 100 × 18 mm
- Package gross weight: 0.06 kg
- Compatibility: EK contactors
- Country of origin: India
- Key Features: Instantaneous 1 NO + 1 NC contacts, screw terminal connection, IP20 protection, 690 V insulation rating, high short-time withstand current (100 A for 0.1 s), left-side mounting on ABB EK contactors.
- Functional Characteristics: Provides auxiliary signaling contacts that mirror the state of the main contactor — NO contact closes when the contactor is energized, NC contact opens simultaneously.
- Application Scenarios: Industrial control panels, motor control circuits, automation systems where auxiliary feedback (ON/OFF status) of EK contactors is required.
- Structural Characteristics: Compact 2-pole block (100×100×18 mm, 0.06 kg) with screw terminals, designed to clip onto the left side of ABB EK series contactors.
- Working Principle: Mechanically linked to the contactor’s moving armature — when the contactor coil is energized and the main contacts close, the NO auxiliary contact closes and the NC auxiliary contact opens instantaneously, providing real-time status feedback to the control circuit.
- Installation Requirements: Mount on the left side of a compatible ABB EK contactor; tighten screw terminals to the specified torque; ensure the operating environment complies with IP20 (no direct water or heavy dust).
- Usage Notes: Do not exceed the rated operational currents (6 A AC-15 @ 220/240 V, etc.); verify contactor compatibility (EK series) before installation; observe 690 V insulation rating limit; use appropriate wire gauge for screw terminals.





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