Parameters
Category Parameter Specification for CAL18-11
General Type Heavy-Duty, Precision Snap-Action Limit Switch
Series CAL (Component Automation) Series
Contact Configuration SPDT (Single Pole, Double Throw) - 1 NO (Normally Open) + 1 NC (Normally Closed)
Actuator Type (Typical for -11) Roller Lever, Right-Angle Return
Electrical Ratings Rated Insulation Voltage (Ui) 500 V
Utilization Categories (IEC 60947-5-1) AC-15: Control of electromagnetic loads (coils)
DC-13: Control of DC electromagnetic loads
Rated Operational Current (Ie) 10 A at 250 V AC
0.3 A at 250 V DC
Rated Thermal Current (Ith) 10 A
Switching Capacity AC: Make/Break: 10A, 250V, cos φ=0.65
DC: Make/Break: 0.3A, 250V, L/R=40ms
Electrical Life > 1 million operations (at rated load)
Mechanical Characteristics Mechanical Life > 10 million operations
Operating Force Approx. 2.5 - 4 N (depends on actuator)
Release Force ≥ 0.5 N
Pretravel/Overtravel Specific to actuator; e.g., ~15° pretravel, ~20° overtravel for lever type.
Repeat Accuracy ±0.1 mm (typical)
Terminals Connection Type Screw clamp terminals
Terminal Capacity Up to 2 x 1.5 mm² or 1 x 2.5 mm²
Torque 0.5 - 0.6 Nm
Environmental & Construction Housing Material Thermoplastic (PBT) or Die-Cast Zinc
Sealing / Protection Degree IP65 (Dust-tight and protected against water jets)
Operating Temperature -25°C to +85°C (Ambient)
Ambient Humidity ≤ 93% RH (non-condensing)
Vibration Resistance 10 - 55 Hz, 0.75 mm amplitude
Shock Resistance 30 G, 11 ms
Mounting & Actuator Mounting 2 x M4 mounting holes, standard footprint.
Actuator Travel Varies; common lever travel is ~90° total.
Actuator Options Various roller materials (Nylon, Metal), lever lengths, and return springs available.
Standards & Approvals Compliance Standards IEC 60947-5-1, EN 60947-5-1
Certifications CE, cULus
The ABB CAL18-11 is a general-purpose, single-pole, snap-action limit switch from ABB's comprehensive CAL series of industrial-grade position sensing and control devices. It is a robust, mechanically actuated switch designed to convert mechanical motion (linear or rotary) into a reliable electrical signal for control, interlocking, or safety circuits in industrial machinery and equipment.