The Schneider Electric ZB4BG8 Harmony Key Selector Switch Head features a polished chrome metal bezel and a keyed operator, offering 3 positions and momentary contact mode.
Product ModelZB4BG8
Product ID38193
Stock on Request
Last updated: 8/29/2026
Key Features
1
FeatureDurable and reliable with a polished chrome metal bezel.
2
FeatureKeyed operator for secure and precise operation.
3
FeatureSuitable for applications requiring high durability and resistance to dust, water, and vibrations.
4
FeatureOperates in momentary contact mode with a spring-return-from-right-to-center mechanism.
5
FeatureCompatible with Harmony XB4 pushbutton and Ronis 455 keylock.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Range of Product
Harmony XB4
Product or Component Type
Head for key selector switch
Device short name
ZB4
Bezel material
Chromium plated metal
Mounting diameter
0.9 in (22 mm)
Head type
Standard
Sale per indivisible quantity
1
Shape of signaling unit head
Round
Return
Right to centre
Operator profile
Black key switch
Operator position information
3 positions +/- 45°
Type of Keylock
Key 455
Key withdrawal position
Center
CAD overall width
1.1 in (29 mm)
CAD overall height
1.1 in (29 mm)
CAD overall depth
2.8 in (72 mm)
Net Weight
0.216 lb(US) (0.098 kg)
Resistance to high pressure washer
1015.3 psi (7000000 Pa) 131 °F (55 °C) 0.1 m
Mechanical durability
1000000 cycles
Electrical composition code
C3 6 single front mountingC4 6 single and double front mountingC5 5 single front mountingC6 5 single and double front mountingC7 4 single front mountingC8 4 single and double front mountingC11 3 single front mounting
Device presentation
Basic element
Protective treatment
TH
Ambient Air Temperature for Storage
-40...158 °F (-40...70 °C)
Ambient Air Temperature for Operation
-40...158 °F (-40...70 °C)
Overvoltage category
Class I IEC 60536
IP degree of protection
IP66 IEC 60529IP67IP69IP69K
NEMA degree of protection
NEMA 13NEMA 4X
IK degree of protection
IK06 with keyhole cover ZBGP conforming to IEC 50102
Standards
EN/IEC 60947-5-5UL 508EN/IEC 60947-5-1EN/IEC 60947-5-4GB 14048.5CSA C22.2 No 14EN/IEC 60947-1
Product Certifications
CSADNVBVLROS (Lloyds register of shipping)UL Listed
Vibration resistance
5 gn 2...500 Hz)IEC 60068-2-6
Shock resistance
30 gn 18 ms) half sine wave acceleration IEC 60068-2-2750 gn 11 ms) half sine wave acceleration IEC 60068-2-27
Schneider Electric ZB4BG8 Harmony Key Selector Switch Head | INDPRT