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-2111N is a D4B-N series roller lever limit switch featuring a resin roller and an aluminum housing. This component utilizes a snap action mechanism with one normally-open and one normally-closed contact, a terminal block connection method, and a G1/2 conduit size with a bottom cable entry direction. The unit is equipped with a direct opening mechanism and does not feature make-before-break operation. Submit the exact part number, quantity, and application requirements for 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-2111N. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.