Technical Specifications:​

Brand:​ ABB

Model:​ CAL16-11A

Contact Configuration:​ 1 normally open plus 1 normally closed

Conventional Free-Air Thermal Current:​ 16 A at 40°C according to IEC 60947-5-1

Rated Operational Current AC-15:​ 6 A at 24 VAC to 127 VAC, 6 A at 220 VAC to 240 VAC, 4 A at 380 VAC to 400 VAC, 1 A at 500 VAC, 1 A at 690 VAC

Rated Operational Current DC-13:​ 6 A at 24 VDC, 6 A at 48 VDC, 4 A at 72 VDC, 1.8 A at 125 VDC, 0.6 A at 250 VDC

Rated Insulation Voltage:​ 690 V

Terminal Type:​ Screw clamp

Protection Rating:​ IP20

Operating Temperature:​ -25°C to 70°C

Width:​ 12.5 mm

Compliance:​ IEC 60947-5-1

Functional Features:​

Instantaneous Action:​ Contacts change state synchronously with contactor main poles

Signal Feedback:​ Provides open and closed status for control and alarm circuits

Bridge Contacts:​ Low-resistance silver alloy contact elements

Snap Mounting:​ Side buckle and locating pin dock directly to compatible contactors

Application Scenarios:​ Contactor status signaling, control circuit interlocking, motor starter feedback, automation panel auxiliary logic, and replacement of auxiliary contact blocks on ABB EH-series contactors.

Performance Parameters:​

Switching Capacity:​ AC-15 breaking and making according to IEC ratings

Thermal Endurance:​ 16 A free-air thermal current under defined ambient conditions

Mechanical Alignment:​ Fixed NO/NC timing with main contactor armature movement

Material Composition:​

Body:​ Insulating thermoplastic housing

Contacts:​ Silver alloy bridge contacts

Terminals:​ Tin-plated screw terminals with copper conductors

Mounting Hardware:​ Molded buckle and positioning pin

Structural Features:​ Narrow 12.5 mm side-mounted block, clearly marked NO and NC terminals, screw clamp connections, integral mounting clip, sealed contact chamber.

Working Principle:​ When the contactor coil energizes, the armature moves and actuates the auxiliary mechanism. The normally open contact closes and the normally closed contact opens. When the coil de-energizes, return springs restore both contacts to their default state, providing real-time on/off signaling for the control circuit.

Installation Requirements:​ Attach to the designated left-side position of the compatible ABB contactor and secure the mounting buckle. Use the correct screwdriver and torque for M3.5 screw terminals. Verify contact configuration and wiring labels before energizing. Install inside a suitable low-voltage enclosure.

Usage Notes:​ Do not exceed the rated voltage, thermal current or switching category. Avoid corrosive atmosphere, heavy dust and condensation. Inspect contacts for oxidation or burning during maintenance. Perform all installation and removal work with the contactor de-energized.