ZB4BC28021 picture- web-product-data-sheet
pushbutton head for harsh environment - black - with marking
Schneider Electric
Range of product Harmony XB4
Product or component type Head for push-button
Device short name ZB4
Bezel material Chromium plated metal
Head type Standard
Mounting diameter 22 mm
Sale per indivisible quantity 1
CAD overall width 37 mm
CAD overall height 18.5 mm
CAD overall depth 37 mm
Net weight 0.036 kg
Electrical shock protection class Class I conforming to IEC 61140
Shape of signaling unit head Round
Type of operator Spring return
Operator profile Black flush, type H021 (white)
Operator additional information Vertical mounting
Mechanical durability 10000000 cycles
Vibration resistance 5 gn (f= 2…500 Hz) conforming to IEC 60068-2-6
Shock resistance 30 gn (duration = 18 ms) for half sine wave acceleration conforming to IEC 60068-2-27
Main group Harsh environment
Group of product Flush marked type H021
Cap/operator or lens colour Black
Marking Type H021
Colour of marking White
Electrical composition code C1 for <9 contacts using single blocks in front mounting
C2 for <9 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
Device presentation Basic element
Ambient air temperature for storage -40…85 °C
Ambient air temperature for operation -40…70 °C
IP degree of protection IP66 conforming to IEC 60529
NEMA degree of protection NEMA 4 conforming to UL 508
Resistance to high pressure washer 90 Pa at 82.5 °C
IK degree of protection IK06 conforming to IEC 62262
Standards IEC 60947-5-1
IEC 60947-1
UL 508
CSA C22.2
Product certifications UL
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Weight 36 g
Package 1 Height 3.76 cm
Package 1 width 3.7 cm
Package 1 Length 3.7 cm
Offer Sustainability
Sustainable offer status Green Premium product
REACh Regulation
print REACh Declaration
REACh free of SVHC Yes
EU RoHS Directive Pro-active compliance (Product out of EU RoHS legal scope)
print EU RoHS Declaration
Toxic heavy metal free Yes
Mercury free Yes
RoHS exemption information
print Yes
China RoHS Regulation
print China RoHS declaration
Environmental Disclosure
print Product Environmental Profile
Circularity Profile
print End of Life Information
California proposition 65 WARNING: This product can expose you to chemicals including: Di-isodecyl phthalate (DIDP), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to
Contractual warranty
Warranty 18 months