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 D4NL-4DFA-BS is a key-operated plastic door switch featuring a guard-lock mechanism with a holding force of 1300 N and an adjustable direction of operation. This unit includes two NC door contacts, two NC lock monitor contacts, an LED indicator, and operates on a 24 V solenoid voltage via a terminal block connection. Housed in an IP67-rated plastic enclosure with a metal standard key positioned on the front, it functions within an ambient temperature range of -10 to 55 °C. Submit the exact part number, quantity, and application requirements for an RFQ quote.
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 D4NL-4DFA-BS. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.