MSSTC11DA42 IMO Microswitch, Screw Terminals Roller Lever 37.5mm

Why Choose the IMO MSSTC11DA42 Microswitch?

The IMO MSSTC11DA42 is a compact industrial snap-action microswitch designed for mechanical position detection, end-of-travel sensing and machine control applications. Part of the IMO MSS Micro Switch range, it features a roller lever actuator with a 37.5 mm radius and snap changeover switching for dependable operation in industrial machinery and automation equipment.

The MSSTC11DA42 uses a snap-action mechanism to provide rapid and repeatable electrical switching as the roller lever moves through its operating point. The rotating roller helps reduce sliding friction between the actuator and moving machine components, while the shorter 37.5 mm lever radius provides a compact mechanical arrangement for applications requiring positive actuation within restricted spaces.

Featuring 1 NO + 1 NC changeover contacts and screw terminals, the MSSTC11DA42 provides flexible integration into industrial control circuits. Its defined operating characteristics include 5.3 mm pretravel, 5.7 mm overtravel, a 0.6 mm movement differential, an operating force of 1.09 N and a release force of 0.84 N.

Key Advantages

• 37.5 mm radius roller lever combines mechanical reach with compact installation.
• Roller actuator helps reduce sliding friction against moving machine components.
• 1 NO + 1 NC snap changeover contacts provide flexible control signalling.
• 1.09 N operating force supports positive and repeatable mechanical actuation.
• Screw terminals provide secure electrical connections.
• Defined pretravel, overtravel and movement differential aid predictable machine integration.
• MSS series mechanical operational life of up to 10 million cycles.
• Part of an industrial microswitch range offering IP20, IP40 and IP65 protection options.

Key Features

• IMO MSS Micro Switch.
• Roller lever actuator.
• 37.5 mm lever radius.
• 1 NO + 1 NC contact configuration.
• Snap changeover contact action.
• 5.3 mm pretravel.
• 5.7 mm overtravel.
• 0.6 mm movement differential.
• 1.09 N operating force.
• 0.84 N release force.
• Screw terminal connections.
• Glass-reinforced plastic housing within the MSS range.
• 25.4 mm fixing centres within the MSS range.
• Up to 10 million mechanical operational cycles across the MSS range.
• MSS range protection options include IP20, IP40 and IP65.

Reliable Roller-Lever Position Sensing

Microswitches convert mechanical movement into an electrical switching signal when their actuator reaches a predetermined operating position. The IMO MSSTC11DA42 uses a 37.5 mm radius roller lever and snap-action mechanism to operate its changeover contacts, enabling machinery and control systems to detect movement, confirm component position or identify an end-of-travel condition.

A roller lever is particularly useful where a cam, plate, door or other moving component travels across the switch actuator. The rotating roller reduces sliding contact at the actuation point, while the 37.5 mm lever radius offers a balance between mechanical reach, operating force and compact installation for repetitive industrial sensing duties.

Typical Applications

• Industrial machinery position detection.
• Mechanical limit and end-of-travel sensing.
• Cam-operated switching mechanisms.
• Conveyors and material handling equipment.
• Automated production machinery.
• Machine tools and processing equipment.
• Packaging and assembly machinery.
• Doors, guards and mechanical interlocking systems.
• OEM machinery and automation systems.