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Datasheet generated 2026-10-07
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Emergency Stop Head with Wrench RED Ø40 (ZB4BS944)

Schneider Electric · Control & Automation · Pushbuttons & Pilot Lights · France · se.com
Part Number
ZB4BS944  ·  HS 8538.90
Emergency Stop Head with Wrench RED Ø40 (ZB4BS944)

Schneider Electric ZB4BS944 Emergency stop With Key Red Ø40mm.

Technical Specifications

Manufacturer part number (MPN)ZB4BS944
EAN / GTIN3389110888881
Sales unitpcs
Package quantity100 pcs
Diameter40 mm
Range of productHarmony XB4
Product or component typeHead for emergency switching off push-button
Device short nameZB4
Bezel materialChromium plated metal
Mounting diameter22.5 mm
Sale per indivisible quantity1
Shape of signaling unit headRound
Type of operatortrigger action and mechanical latching
ResetKey release
Operator profileRed mushroom Ø 40 mm, unmarked
Type of keylockKey 455
Key withdrawal positionCenter
Head typeStandard
Cap/operator or lens colourRed
CAD overall width40 mm
CAD overall height40 mm
CAD overall depth79 mm
Product weight0.098 kg
Resistance to high pressure washer7000000 Pa at 55 °C, distance : 0.1 m
Mechanical durability300000 cycles
Electrical composition codeC7 for <4 contacts using single blocks in front mounting; C8 for <4 contacts using single and double blocks in front mounting; C11 for <3 contacts using single blocks in front mounting; C15 for <1 contacts using single blocks in front mounting; C10 for <4 contacts using single and double blocks in front mounting
Device presentationBasic element
Protective treatmentTH
Ambient air temperature for storage-40…70 °C
Ambient air temperature for operation-40…70 °C
Electrical shock protection classClass I conforming to IEC 61140
IP degree of protectionIP66 conforming to IEC 60529; IP67; IP69; IP69K
Enclosure TypeUL type 4X/13
IK degree of protectionIK03 conforming to IEC 50102
StandardsCSA C22.2 No 14; IEC 60204-1; IEC 60947-1; GB 14048.5; IEC 60947-5-1; ISO 13850; IEC 60947-5-5; JIS C8201-5-1; IEC 60947-5-4; UL 508; IEC 60364-5-53; JIS C8201-1
Product certificationsDNV; UL listed; LROS (Lloyds register of shipping); BV; CSA
Vibration resistance5 gn (f= 2…500 Hz) conforming to IEC 60068-2-6
Shock resistance30 gn (duration = 18 ms) for half its wave acceleration conforming to IEC 60068-2-27; 50 gn (duration = 11 ms) for half its wave acceleration conforming to IEC 60068-2-27
Number of Units in Package 11
Number of Units in Package 2100
Country of originCZ
Warranty (in months)18
Hole diameter22.5 mm
Colour buttonRed
Suitable for lightingNo
Unlocking methodKey-release
Spring-returnNo
Diameter cap40 mm
Suitable for emergency stopYes
Type of buttonHigh
Colour front ringChrome
With lightingNo
Degree of protection (IP)IP66
Material front ringMetal
With front ringYes
Construction type lensRound
Switching function latchingYes

Properties

MOQ1

Cross-References

Attached Documents