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Emergency Stop Switch, SPST-NO, SPST-NC, Push-Turn Release, Screw Clamp, 1.2 A, 600 V


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Manufacturer Part No:
Newark Part No.:
Product Range
Harmony XB4 Series
Technical Datasheet:
XB4BS8445   Datasheet
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Push-Turn Release

Screw Clamp





Harmony XB4 Series

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Technical Documents (7)

CAD Downloads


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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
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Product Overview

The XB4BS8445 is a single-pole single-throw (SPST) Emergency Stop Pushbutton Switch with 1NO + 1NC slow-break silver alloy (Ag/Ni) contacts and screw clamp terminals. This pushbutton operator features round signaling unit head, turn to release reset, chromium-plated metal bezel, Zamak fixing collar, trigger action and mechanical latching red mushroom Ø40mm unmarked operator. This XB4 series pushbutton switch is suitable for use with the Harmony XB4 range product. It meets with the EN/IEC 60204-1, EN/IEC 60947-1, EN/IEC 60947-5-1, EN/IEC 60947-5-4, EN/IEC 60947-5-5, EN/ISO 13850, IEC 60364-5-53, JIS C 4520, UL 508 and CSA C22.2 No 14 standards.
  • Green premium product
  • 300000 cycles Mechanical durability
  • IP66 Protection rating
  • IK03 Protection rating
  • -25 to 70°C Ambient air temperature range for operation


Automotive, Industrial, Commercial

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