EMERGENCY PUSH BUTTON WITH NC | XB4BS8444

Emergency Push Button with NC | XB4BS8444

Emergency Push Button with NC | XB4BS8444

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The XB4BS8444 is a Schneider Electric emergency stop push button from the XB4 series, featuring a mushroom head with a Normally Closed (NC) contact. It is designed for safety-critical applications where immediate machine shutdown is required.






Key Features of XB4BS8444 Emergency Stop Button:


✅ Mushroom Head (Large Red Button) – Easily accessible for quick emergency activation.
✅ Normally Closed (NC) Contact – Breaks the circuit when pressed (safety-compliant).
✅ Twist-to-Release Mechanism – Must be manually rotated to reset after activation.
✅ Durable Plastic Body – Resistant to impacts and harsh industrial environments.
✅ IP65 Protection – Dust-tight and protected against water jets.
✅ 22mm Mounting Diameter – Standard cutout for panel installation.
✅ Screw Terminals – Secure wiring connections.






Technical Specifications:




















































Parameter Details
Model XB4BS8444 (Schneider Electric)
Type Emergency Stop (NC)
Contact Rating 5A @ 230V AC / 6A @ 24V DC
Mechanical Life ≥ 100,000 operations
Electrical Life ≥ 50,000 operations
Mounting 22mm panel cutout
IP Rating IP65
Reset Type Twist-to-release
Color Red (with yellow base for visibility)
Standards IEC/EN 60947-5-1, EN 60204-1





Wiring & Connection:




  • 1 NC (Normally Closed) Contact – Used to break the safety circuit when pressed.




  • Terminals: Screw-type for secure wiring.




  • Typical Wiring: Connected in series with the control circuit of a safety relay or contactor.







Applications:




  • Industrial machinery (presses, CNC, conveyors)




  • Control panels & motor starters




  • Packaging & automation systems




  • Safety shutdown systems







Compatible Accessories (Schneider XB4 Series):




  • Mounting Adapters (XB4AD21 for additional stability)




  • Protective Covers (XB4R protective ring)




  • Extended Buttons (XB4BEX for easier access)







Alternatives (If XB4BS8444 is Unavailable):




  • Siemens 3SB3 800-0EA01 (Similar NC emergency stop)




  • ABB 1SFA611104R1000 (Mushroom head, twist-reset)




  • Omron A165E-M-12D (Japanese standard, NC contact)







Buying Considerations:


✔ Verify Voltage/Current Rating (Ensure compatibility with your system).
✔ Check Reset Mechanism (Twist-release is common, but some require a key).
✔ Confirm Mounting Size (22mm is standard, but some panels may differ).https://store.unigulfsupply.com/product/emergency-push-button-xb4bs8444/

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