Parameters
Category Parameter Specification for MJS4-60B
General Product Type Modular, Non-Illuminated Selector Switch (Actuator)
Series MJS (Compact MJS Series)
Assembly Type Front Operator Module (Knob & Shaft)
Mechanical Design Actuator Type Rotary Selector Knob
Number of Positions 2 Positions
Angle of Throw 60° between positions
Knob Color Black (B)
Knob Material Thermoplastic (e.g., PA)
Shaft Material Metal
Panel Cut-out 22 mm diameter (Standard)
Operational Action Type Maintained (stays in selected position)
Detent Mechanism Spring-loaded ball detent for positive positioning.
Operating Torque Approx. 0.5 - 1.0 Nm
Mechanical Life > 50,000 cycles
Electrical Electrical Circuitry None in actuator. Defined 100% by the MJS Contact Block.
Environmental Protection Degree (IP) Typically IP40 (front). Can achieve IP54/IP65 with optional sealing kit and correct mounting.
Operating Temperature -25°C to +70°C
Ambient Humidity ≤ 85% RH (non-condensing)
Compatibility & Assembly Required Components 1. MJS Series Contact Block (e.g., MJS-CB2A10 for a 2-position, 1 changeover circuit).
2. Mounting Clamp.
3. Optional Sealing Ring for higher IP rating.
Contact Block Compatibility Must use an MJS series block with a shaft matching the actuator's 60° throw.
Standards & Approvals Compliance Standards IEC/EN 60947-5-1
Certifications CE, cULus
The ABB MJS4-60B is a compact, modular selector switch from ABB's MJS (Compact MJS) series, designed for space-constrained industrial control panels requiring a simple and reliable mode selection. This specific model is a non-illuminated, two-position selector switch with a 60-degree throw angle and a black rotary knob, offering a cost-effective and durable solution for basic control functions.