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Omron D4SL-N Interlock Switch

•The D4SLN is designed to reduce installation time for both mechanical mounting and electrical hook-up

Mounting time is reduced because the switch body is designed to allow the entire switch body, including the operation key engagement slot, to be rotated in 90 degree increments without removing the head of the switch from the body.

This is accomplished with a unique set of mounting holes which allow the switch to be mounted to any side of the switch body.

Electrical installation is reduce by providing a removable terminal block that can be pre-wired separately from the switch body. After wiring the control cable to the removable terminal block the terminal block and cable assembly can then be plugged into the switch body for a quick connection. 

Alternatively, a prewired factory connector and cable assembly is available that can be plugged directly into the switch thereby eliminating the need to terminate the wires at the switch completely.

•The D4SLN is a compact mechanical interlock switch that is available in either a mechanical locking or solenoid locking versionomron 200

•A broad range of contact configurations are available for the safety contacts, door monitoring contacts and solenoid monitoring contacts

•Slide key mechanism available

•Metal head option available

•A variety of operation keys are available with a straight, bent or pivoting design to accommodate the door geometry for your application.

pdfOmron D4SL-N Safety Switch.pdf637.87 KB


  • In Iowa:

    Toll Free: (800) 328-6236
    Phone: (515) 225-6933
    Fax: (515) 225-0063

    1207 Maple Street
    P.O. Box 65310
    West Des Moines, Iowa 50265   (map)
    In Nebraska:

    Toll Free: (888) 304-7629
    Phone: (402) 467-4041
    Fax: (402) 467-4072

    5900 N. 58th Street, Suite 2
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    In Kansas & Missouri:

    Phone: (816) 256-4142