Harmony™ XB4 metal
22 mm push buttons
References
Key switches with key no. 455, 421E, 458A,
520E, 3131A
Assembly of other products using body/contact assemblies, see page 48; accessories, see page 62
Key switches (1) (2)
Screw clamp terminal connections (Schneider Electric anti-retightening system)
Shape
of head
Type of
operator
Type of contact
Reference
Weight
kg
Positions
Number
Type
N/O
1
N/C
–
Complete units
Key switch
with key no. 455
2-positio
90°
Stay put
XB4BG21
(ZB4BZ101 + ZB4BG2)
0.153
0.153
0.153
0.153
0.153
XB4BG41
(ZB4BZ101 + ZB4BG4)
Spring return
to left
XB4BG61
(ZB4BZ101 + ZB4BG6)
2
–
3-position
± 45°
Stay put
XB4BG03
(ZB4BZ103 + ZB4BG0)
XB4BG33
XB4BG33
(ZB4BZ103 + ZB4BG3)
Heads only
Key switch with key no. 455 (3) (4) 2-position
Stay put
ZB4BG2
ZB4BG02
ZB4BG4
0.098
0.098
0.098
90°
Spring return
ZB4BG6
0.098
from right to left
3-position
± 45°
Stay put
ZB4BG0
ZB4BG03
ZB4BG04
ZB4BG3
0.098
0.098
0.098
0.098
ZB4BG0
ZB4BG5
ZB4BG9
ZB4BG09
ZB4BG1
ZB4BG01
ZB4BG7
0.098
0.098
0.098
0.098
0.098
0.098
Spring return
from left to center
Spring return
to center
Spring return
from right to
center
0.098
0.098
ZB4BG8
ZB4BG05
ZB4BG08
0.098
Heads with black metal bezel
To order, add a figure 7 to the references selected from above. Example: ZB4BG2 becomes ZB4BG27.
(1) Recommended maximum number of contacts and sequence of contacts constituting the body (mounting collar + contact) associated with the head,
see page 24.
(2) The symbol indicates key withdrawal position(s).
(3) Other key numbers:
- key no. 421E: add suffix 12 to the reference.
- key no. 458A: add suffix 10 to the reference.
- key no. 520E: add suffix 14 to the reference.
- key no. 3131A: add suffix 20 to the reference.
Example: For a switch head with key no. 421E, 2-position stay put, with key withdrawal from the left-hand position, the reference becomes: ZB4BG212.
(4) For specific keys with other numbers, please consult your Regional Sales Office.
Note: For contact block and mounting collar ordering information, see pages 48, 50, 51 and 52.
Introduction:
page 14
Specifications:
page 20
Dimensions:
page 72
40