{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"D4C1603","brand":"Omron","brandSlug":"omron","productSlug":"D4C1603","canonicalUrl":"https://aoctrl.com/omron/D4C1603","factsUrl":"https://aoctrl.com/api/mcp/products/D4C1603","rawCanonicalId":null},"summary":{"shortDescription":"Omron D4C Series, Limit Switch, SPDT, Momentary, Cross Roller Plunger, IP67, 5 A @ 250 V AC, 4 A @ 30 V DC, 9.8 ft Cable.","salesMarkdown":"The Omron D4C1603 is a metallic-body limit switch from the D4C series, built for position sensing in industrial automation. Its SPDT contact form with momentary action means the contacts return to their unactuated state the instant the plunger is released — standard for interlock and end-of-travel detection where the switch must not latch. The cross roller plunger actuator (stainless steel roller, 0.47 in diameter, 0.17 in width) provides a rolling contact with the cam or dog, reducing wear on repeated actuation cycles compared to a plain plunger. Rated for 5 A at 250 V AC and 4 A at 30 V DC, this switch handles typical control-circuit loads — pilot relays, contactor coils, PLC inputs — without needing an interposing relay for most applications. The IP67 rating (dust-tight and protected against temporary immersion) means it can be mounted in washdown zones, outdoors under cover, or on conveyor lines where coolant mist is present. NEMA enclosure ratings of 3, 4, and 13 confirm suitability for rain, splash, and oil-spray environments. Surface-mount with two mounting holes (M3 or #4 screws typical). Body dimensions: 2.13 in height, 1.33 in width, 0.62 in depth — compact enough for tight rail or bracket mounting. The 9.8 ft SJT(O) cable exits the body, so plan a cable gland or strain relief at the panel entry point. Pretravel is 0.07 in, differential travel 0.01 in, total travel 0.19 in, and overtravel 0.12 in — these numbers define the cam profile needed for reliable actuation without over-stressing the plunger. Operating force is 11.77 N maximum, so the cam or dog must deliver at least that force through the full travel.","metaTitle":"Omron D4C1603 Limit Switch, SPDT, IP67, Cross Roller Plunger","metaDescription":"Omron D4C1603 limit switch with momentary SPDT contacts, IP67 rated, cross roller plunger actuator. UL/CSA/CE/CCC approved. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Limit Switches"],"specifications":{"Brand":"OMRON","Action":"Momentary","Series":"D4C","IP Rating":"IP67","Lamp Type":"LED","Pretravel":"0.07 in","Standards":"CCC; CE; CSA; EN; UL Listed","Body Depth":"0.62 in","Body Width":"1.33 in","Body Height":"2.13 in","Display Qty":"1","Contact Form":"SPDT","Roller Width":"0.17 in","Total Travel":"0.19 in","Actuator Type":"Cross Roller Plunger","Body Material":"Aluminum","Actuator Style":"Cross Roller Plunger","Mounting Style":"Surface","Roller Diameter":"0.47 in","Roller Material":"Stainless Steel","Roller Position":"Top","lifecycle_stage":"mature","Display Sell UOM":"EA","Overtravel - NEW":"0.12 in","AC Contact Rating":"5 A @ 250 V","Actuator Location":"Top","DC Contact Rating":"4 A @ 30 V","Includes Actuator":"Actuator Included","Body Configuration":"Plug-In","Body Material Type":"Metallic","Differential Travel":"0.01 in","Boot Sealed Actuator":"No Boot Included","Directional Movement":"Linear","Roller Adjustability":"Fixed","Electrical Connection":"9.8 ft Cable (SJT(O))","NEMA Enclosure Rating":"3; 4; 13","Plunger Adjustability":"Fixed","Number of Mounting Holes":"2","Operating Force - Maximum":"11.77 N","Operating Torque - Maximum":"61.07 in-lb","Operating Torque - Minimum":"2.92 in-lb","Mounting Hole Diameter - NEW":"0.2 in","Operating Temperature - Maximum":"158 °F","Operating Temperature - Minimum":"14 °F","Mounting Hole Vertical Center to Center Distance":"25 mm","Mounting Hole Horizontal Center to Center Distance":"25 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$59.69 – $161.66","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/D4C1603/alternatives.json"},"ai":{"faq":[{"question":"What approvals does the D4C1603 carry?","answer":"The switch is UL Listed, CSA certified, CE marked, CCC approved, and meets EN standards. This covers North American, European, and Chinese regulatory requirements for industrial control equipment."},{"question":"What is the contact rating for DC loads?","answer":"The DC contact rating is 4 A at 30 V. For higher DC voltages or currents, verify the switching capacity against your load — DC arcs are harder to extinguish than AC, so derating may apply above 30 V."},{"question":"What actuator type does this switch use?","answer":"A cross roller plunger actuator with a 0.47 in diameter stainless steel roller, mounted at the top. The roller is fixed (non-adjustable), and the plunger travel is linear."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/D4C1603","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/D4C1603 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}