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 D4B-4111N is an aluminum housing D4B-N series limit switch featuring a roller lever actuator with a resin roller and a snap action mechanism. This unit incorporates one normally-open and one normally-closed contact featuring a direct opening mechanism, without make-before-break functionality. Connections are made via a terminal block through an M20 bottom cable entry. Submit the exact part number, quantity, and application requirements to request a 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 D4B-4111N. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.