Schneider XB4BS9445 Emergency Stop Button, Harmony XB4, Metal, Red Mushroom

The Schneider Electric XB4BS9445 is a red Ø40 mm emergency stop push button from the Harmony XB4 series, designed for 22.5 mm panel cutout mounting with key release latching (Key 455) and 1NC+1NO contact configuration. Built with a chrome-plated metal body and rated IP66/IP67/IP69K, it delivers reliable machine safety stopping for demanding industrial and washdown environments.

Technical specifications:

• Commercial reference: XB4BS9445
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Harmony XB4
• Product type: Emergency stop push button
• Mounting diameter: 22.5 mm
• Head profile: Red mushroom button, Ø40 mm, unmarked
• Reset: Key release, Key 455, extraction at center position
• Contact configuration: 1 NO + 1 NC
• Contact operation: Slow break, positive opening per IEC 60947-5-1 Annex K
• Rated operational current: 3 A at 240 V AC-15; 6 A at 120 V AC-15; 1.2 A at 600 V AC-15
• Rated insulation voltage: 600 V (pollution degree 3)
• Rated impulse withstand voltage: 6 kV
• Thermal current [Ith]: 10 A
• Contact material: Silver alloy (Ag/Ni)
• Connection: Screw terminals, 0.22 to 1.5 mm²
• Operating force: 44 N; total travel: 4.3 mm
• Mechanical endurance: 300,000 cycles
• Body material: Chrome-plated metal
• Dimensions (WxHxD): 40 x 47 x 104 mm
• Weight: 0.17 kg
• IP protection: IP66, IP67, IP69, IP69K
• NEMA rating: NEMA 4X, NEMA 13
• IK rating: IK03
• Operating temperature: -40...70°C
• Certifications: UL, CSA, DNV, BV, LROS

Features and benefits:

• Key release latching (Key 455) prevents unintentional restart after emergency stop activation
• Positive opening contacts per IEC 60947-5-1 Annex K ensure reliable contact separation under fault conditions
• IP69K and NEMA 4X rating withstands high-pressure washdown up to 7,000,000 Pa at 55°C, distance 0.1 m
• Silver alloy (Ag/Ni) contacts rated for 1,000,000 electrical cycles for long service life
• Wide operating temperature range of -40...70°C suits harsh industrial and outdoor environments

Applications:

• Emergency stop stations on industrial machinery and automation control panels
• Machine safety circuits requiring ISO 13850 compliant emergency stop devices
• Food and beverage processing lines requiring washdown-resistant operator controls
• Marine and offshore installations requiring DNV and Lloyd's Register certified components

Compliant with IEC 60947-5-1, IEC 60947-5-5, ISO 13850, IEC 60204-1, IEC 60364-5-53, UL 508, CSA C22.2 No 14, and JIS C8201-5-1. Part of the Schneider Electric Harmony XB4 series.

Also known as: Schneider XB4BS9445, Schneider Electric XB4BS9445, Harmony XB4 emergency stop button, key release emergency stop pushbutton.