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OMRON D4NS-4AF-NPT Hazardous-Location Safety-Interlock Switch - Hazardous-Location Safety-Interlock Switches
OMRONHazardous-Location Safety-Interlock Switches

OMRON D4NS-4AF-NPT Hazardous-Location Safety-Interlock Switch

The OMRON D4NS Series Safety Interlock Switch (MPN D4NS-4AF-NPT) is a hazardous-location safety-interlock switch with a 1NO/1NC contact configuration. It features a front key hole location and a flat actuating key…

SKU 3G-OTH-30339

Also listed as: D4NS4AFNPT · D4NS 4AF NPT

Brand
OMRON
Item
D4NS-4AF-NPT Hazardous-Location Safety-Interlock Switch
Part Number
D4NS-4AF-NPT
Category
Hazardous-Location Safety-Interlock Switches
Available to Order
Also known as:D4NS-4AF-NPTOMRON
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OMRON
Manufacturer Part Number
D4NS-4AF-NPT
Series
D4NS
Key Hole Location
Front
Actuating Key Type
Flat
Terminal Connection Type
M20

Technical Documents

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OMRON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OMRON D4NS Series Safety Interlock Switch (MPN D4NS-4AF-NPT) is a hazardous-location safety-interlock switch with a 1NO/1NC contact configuration. It features a front key hole location and a flat actuating key type, with an M20 terminal connection type.

Frequently Asked Questions

What is the OMRON D4NS-4AF-NPT safety interlock switch used for?

The OMRON D4NS-4AF-NPT is a hazardous-location safety-interlock switch used to monitor the position of guards and doors on industrial machinery. It prevents machine operation when the guard is open, protecting personnel in environments with explosive dust or gases. Common applications include chemical plants, grain handling, and pharmaceutical processing.

What are the specifications of the OMRON D4NS-4AF-NPT?

The OMRON D4NS-4AF-NPT is a D4NS Series safety-interlock switch with a 1NO/1NC contact configuration. It has a front key hole location, a flat actuating key type, and an M20 terminal connection type. The switch is designed for hazardous locations and uses a positive-opening mechanism for reliable safety circuit interruption.

Where to buy the OMRON D4NS-4AF-NPT worldwide?

3G Electric supplies the OMRON D4NS-4AF-NPT safety interlock switch worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact our team for a quote and lead time. We source genuine OMRON components for hazardous-location safety applications.

How to install the OMRON D4NS-4AF-NPT safety interlock switch?

Mount the D4NS-4AF-NPT switch on the fixed guard frame and align the flat actuating key with the front key hole. Connect the M20 terminal to the safety circuit using appropriate hazardous-location wiring methods. Ensure the positive-opening NC contact is wired in series with the machine stop circuit. Test guard position detection before operation.

Used in

Common applications for OMRON
Industrial control panels — Omron G7L series power relays for switching high-current loads up to 30 A
HVAC equipment — Omron MJN series relays with 240 V AC coils for compressor and fan control
Process automation — Omron G3NA solid-state relays for silent, high-cycle switching of heaters
Material handling — Omron photoelectric and proximity sensors for position detection and counting
Machine safety — Omron safety relays and interlock switches for guard door monitoring
Power distribution — Omron surface-mounted relays with finger-safe terminals for branch circuit control
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OMRON Products

3G Electric supplies OMRON hazardous-location safety-interlock switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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The OMRON D4BS-45FS-NPT is a hazardous-location safety-interlock switch from the D4BS series. It features a front key hole location, a flat actuating key type, and an M20 terminal connection type. This switch is used to guard access to dangerous machinery in industrial environments, ensuring equipment cannot operate when the guard is open

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