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About Namco Controls

Heavy-Duty Industrial Limit Switches

Namco heavy-duty limit switches are built for rugged industrial applications. Namco limit switches excel in critical industrial, hazardous location, navy and marine applications.

In 1938, the need for a limit switch of high quality, repeatability, and reliability was pressing – but one didn’t exist. Namco Controls was therefore created to design and manufacture limit switches for our own needs. Innovative and reliable from the beginning, they were eagerly sought after by other companies and we branched out into supplying the demand.

Everything that made Namco Snap-Lock Heavy Duty Limit Switches the preference of the heavy and machine tool industries of the past is still applicable today, from die cast switch bodies to a wide variety of actuators. Times may have changed, but our reputation for reliability hasn’t.

Today, Snap-Lock still provides unparalleled reliability in the toughest environments and in heavy-duty applications. This superior mechanical limit switch provides a huge range of operation, construction, and practical flexibility. You can choose a model, size, and type that will meet and exceed the demands you place on it. In every respect, Snap-Lock has the features and benefits you insist on in a limit switch.

In addition to easily covering all your functional requirements, Snap-Lock Limit Switches will meet practically every application. They have the ruggedness to operate under the most severe conditions in hazardous locations and have the durability needed for a long, trouble-free lifespan.

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Limit Switch Product Instructions
Our Heavy Duty Limit Switch Series

EA040 Series Heavy Duty Limit Switch

EA040 Neutral Position Limit Switch

Designed for applications where a neutral position is essential in operation. This series provides the same snap locking action of the other series of SNAP-LOCK Switches.

EA060 Series Heavy Duty Limit Switch

EA060 Short Travel Limit Switch

With mechanical travel of less than 61⁄2° required to trip, this heavy duty limit switch operates with one normally open and one normally closed circuit.

EA080 Series Heavy Duty Limit Switch

EA080 Rocker Type Standard Limit Switch

This series was designed by the Electrical Manufacturing Division of National Acme to fill a need for limit switches offering a high degree of repeatability, life and reliability for use on machine tools. This series of limit switches remains one of Namco’s most popular lines. It has numerous applications on machine controls, conveyors, material- handling systems and valve controls.

EA150 Series Limit Switch

EA150 Gravity Return/Spring Return Limit Switch

EA150 has dust-tight zinc housing with LED light option. It’s ultra-sensitive and has a gravity or spring return for small-part and other light-touch requirements.

EA700 Series Heavy Duty Limit Switch

EA700 Cam Operated Limit Switch

Where relatively fast motions are involved, EA700 cam operated limit switches are designed to ensure the switch actual does not receive a severe impact, thus damaging the switch.

EA780 & EA790 Series Navy Marine Limit Switch

EA780-790 Navy-Marine Position Limit Switch

Completely fabricated from non- corrosive materials, the EA780-790 series bronze housing and high quality stainless steel shaft completely protect against external damage to the switch from salt spray or other corrosive elements. Sealing against leakage is achieved through the use of high quality gaskets on machined surfaces and “0” Ring protection, plus close tolerance between the shaft and bushing.

EA800 Series Heavy Duty Limit Switch

EA800 Neutral Position Limit Switch

This series of hazardous location Snap-Lock Limit Switches utilizes the internal mechanism of the EA700 series, with a significant advantage. The mechanisms are enclosed in UL-listed, NEMA-rated housing available in aluminum or bronze and are perfect for use in use in environments with excessive vibration, dirt and heat.

EA880 Series Hazardous Location Limit Switch

EA880 Hazardous Location Limit Switch

These hazardous location Snap-lock switches can have any of the internal mechanism of the EA080, EA060, or EA040 switches. They are enclosed in UL-listed NEMA- rated aluminum housings