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OMRON Safety Interlock Switch: D4NS Series - Hazardous-Location Safety-Interlock Switches
OMRONHazardous-Location Safety-Interlock Switches

OMRON Safety Interlock Switch: D4NS Series

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

Brand
OMRON
Item
Safety Interlock Switch: D4NS Series
Category
Hazardous-Location Safety-Interlock Switches
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Technical Specifications

OMRON
Manufacturer Part Number
D4NS-4AF-NPT
Series
D4NS
Key Hole Location
Front
Actuating Key Type
Flat
Terminal Connection Type
M20
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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
Automotive assembly lines — OMRON G2RV-ST500 AC/DC24 slim relays for compact control panel switching
Packaging machinery — OMRON E2E-X5Y1-M1 inductive proximity sensors for position detection of metal parts
HVAC systems — OMRON LY4-DC12 general-purpose relays for fan and compressor control
High-temperature ovens — OMRON E32-D51 fiber-optic cables for non-contact temperature sensing
Material handling — OMRON D4CC3002 limit switches for conveyor belt end-of-travel detection
Machine tool safety — OMRON TZ-1GV22 snap-action switches for interlock and guard monitoring

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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