Schneider XB5AS8444 Emergency Stop Switching Off, Harmony XB5, Plastic, Red Mush

The Schneider Electric XB5AS8444 is a Harmony XB5 series emergency stop pushbutton with a 40 mm red mushroom head, designed for 22 mm panel cutouts. It features a latching mechanism with twist-to-release reset and 2 NC contacts for safety control circuits in industrial machinery and automation panels.

Technical specifications:

• Commercial reference: XB5AS8444
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Harmony XB5
• Product type: Emergency stop pushbutton
• Mounting diameter: 22 mm
• Head profile: Red mushroom button, 40 mm diameter, unmarked
• Body material: Dark grey plastic
• Mounting frame material: Plastic
• Contact type and composition: 2 NC
• Contact operation: Slow break
• Latching action: Mechanical latching, twist-to-release reset
• Rated operating current [Ie]: 3 A at 240 V AC-15; 6 A at 120 V AC-15
• Rated insulation voltage [Ui]: 600 V (pollution degree 3), per IEC 60947-1
• Rated impulse withstand voltage [Uimp]: 6 kV, per IEC 60947-1
• Thermal current in air [Ith]: 10 A, per IEC 60947-5-1
• Short-circuit protection: 10 A gG fuse, per IEC 60947-5-1
• Contact material: Silver alloy (Ag/Ni)
• Mechanical durability: 300,000 cycles
• Electrical durability: 1,000,000 cycles at AC-15, per IEC 60947-5-1 Annex C
• IP protection rating: IP66 / IP67 / IP69 / IP69K, per IEC 60529
• NEMA rating: NEMA 4X, NEMA 13
• IK rating: IK03, per IEC 50102
• Operating temperature: -40...70 °C
• Storage temperature: -40...70 °C
• Width: 40 mm, Height: 43 mm, Depth: 82 mm
• Weight: 0.072 kg
• Connection type: Screw terminal blocks, per IEC 60947-1
• Tightening torque: 0.8...1.2 N.m, per IEC 60947-1
• Certifications: CSA, UL, BV, DNV, Lloyd's Register of Shipping
• Standards: IEC 60947-5-1, IEC 60947-5-5, IEC 60204-1, ISO 13850, UL 508, CSA C22.2 No 14

Features and benefits:

• Positive opening action per IEC 60947-5-1 Annex K ensures reliable contact separation in safety applications
• High IP69K rating provides resistance to high-pressure washdowns at 7,000,000 Pa at 55 °C from 0.1 m distance
• Wide operating temperature range of -40 to 70 °C suits demanding industrial environments
• Vibration resistance to 5 gn (2...500 Hz) and shock resistance to 50 gn per IEC 60068 standards
• Compatible with multiple screwdriver types including Philips, Pozidriv, and slotted for flexible installation

Applications:

• Emergency stop circuits on industrial machinery and production lines
• Safety control panels in manufacturing and process automation
• Food and beverage equipment requiring washdown-rated components
• Marine and offshore control systems (DNV and Lloyd's Register certified)

Compliant with IEC 60947-5-1, IEC 60947-5-5, IEC 60204-1, ISO 13850, UL 508, and CSA C22.2 No 14. Part of the Schneider Electric Harmony XB5 range.

Also known as: Schneider XB5AS8444, Schneider Electric XB5AS8444, Harmony XB5 emergency stop button, 22 mm mushroom head e-stop.