Omron D4A-1101N Limit Switch: Comprehensive Guide for Industrial Automation Applications
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The photographs show limit-switch bodies and boxes marked Omron D4A-1101N. The delivery note records ten new domestic parts carrying brand markings, with a one-year warranty on 4 March 2026. Although the photographed unit and boxes say Made in Japan, that conflicts with the note’s domestic sourcing statement and does not establish original Omron manufacture.
Identification and delivery details
The unit has a metal enclosure, splined rotary shaft, black head and threaded cable-entry opening. No operating lever is fitted in the photographs. The front plate states SWITCH BODY ONLY.
The plate carries NEMA A600, enclosure-type wording and a contact diagram labeled 3 NO / 2 NC. A separate marking reads 2 A 125 VAC. These are transcribed markings; the delivery images do not independently verify approvals or electrical performance.
| Item | Evidence |
|---|---|
| Visible brand and type | Omron; D4A-1101N |
| Assembly shown | Switch body with rotary shaft; no lever fitted |
| Plate wording | SWITCH BODY ONLY |
| Visible electrical markings | NEMA A600; 2 A 125 VAC marking; contact diagram with NO and NC labels |
| Origin discrepancy | Unit/boxes: Made in Japan; delivery note: domestic parts with brand markings |
| Quantity and condition | 10; recorded as new domestic parts with markings |
| Warranty | One year in the delivery note |
| Date and weight field | 4 March 2026; 0.5 kg, basis not stated |
| Operational testing | No contact or endurance test documented |
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The sourcing contradiction is preserved. The exterior markings must not be treated as independent manufacturer authentication or proof of the older prose’s IP67 and service-life claims.
Matching this part
Match the complete type, shaft and required lever, mounting layout, cable-entry thread and contact arrangement. Confirm the required approvals and supply source before ordering.
The body-only wording matters when comparing a complete switch with an existing lever assembly. Confirm every included actuator component in the quotation.
Photos and recorded media
Recorded inspection clip. The clip is retained as delivery evidence; no performance measurement is inferred from it.
Related records and products
040588 temperature-switch replacement record also distinguishes supply conditions from exterior identification markings.
Request this part
Send the full switch type, required actuator, contact arrangement, mounting and sourcing requirements. We will confirm the supplied configuration and warranty.
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Send us the part number or article link — we will confirm price, availability and lead time.
