Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Omron
The Omron D4SL-N4EFA-DN is a key-operated plastic door switch featuring a resin head and a robust 1300 N holding force with guard-lock functionality. This unit operates on a 24 V solenoid voltage and includes an integrated LED indicator, system connector interface, and an adjustable direction of operation with front and back metal standard key positions. Electrical configurations comprise 2 NC and 1 NO door contacts, alongside 1 NC and 1 NO lock monitor contacts, delivering IP67-rated protection within an operating ambient temperature range of -10 to 55 °C. Submit the exact part number, quantity, and application requirements to request a formal quote for this component.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Omron references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Omron D4SL-N4EFA-DN. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.