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 D4BS-45FS is a key-operated metal door switch featuring a metal head and an adjustable direction of operation. This D4BS model includes one NC door contact and one NO door contact, a terminal block connection method, and an M20 conduit size without an LED indicator or guard-lock. It operates within an ambient temperature range of -40 to 80 °C and provides an IP67 degree of protection. Submit your 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 D4BS-45FS. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.