Datasheet
Accessories
Shape Material Part No.
Package 
Quantity
Description & Dimensions (mm)
Locking Ring Wrench
Metal
(weight: 
approx. 150g)
MW9Z-T1
1
• Used to tighten the locking ring when installing 
the HW switch onto a panel.
• Tighten the locking ring to a torque of 2.0 N·m.
Lamp Holder Tool
Rubber
OR-55
1
• Used to install and remove the LED lamps.
Rubber Mounting Hole Plug
Rubber 
(black)
OB-31
5
• Used to plug the unused ø22.2mm mounting 
holes.
Metallic Mounting Hole Plug
Diecast Metal
(locking ring: 
plastic)
LW9Z-BM
1
• Used to plug the unused ø22.2mm mounting 
holes.
• Tighten the locking ring to a torque of 1.2 N·m.
• IP66
• Mounting panel 
thickness: 
0.8 to 6 mm
Barrier
Plastic
HW-VG1
10
20
1.5
45
• 
Used to prevent con-
tact between adjacent 
lead wires when units 
are mounted closely. 
Barriers should 
always be used in 
close mounting.
Ring Adapter
Rubber
HW9Z-A25
5
• Used to install the HW/TW units into ø25 
mounting holes.
• IP65
• Cannot be used with anti-rotation ring and 
nameplate.
• Mounting panel thickness: 1.2 to 6.0 mm
Ring Adapter
Adapter:
Plastic
Washer:
Metal
HW9Z-A30
2
• Used to install the HW units into ø30 mounting 
holes (except for HW1E and HW1B-M5/V5).
• IP65
• Cannot be used with anti-rotation ring, name-
plate, full-shroud illuminated pushbuttons, 
pushbutton selectors, and mono-lever switches.
• Mounting panel thickness: 1.6 to 4.0 mm
Ring Adapter
Adapter:
Rubber
Washer:
Metal
HW9Z-A30E
2
• Used to install the HW1E units into ø30 mount-
ing holes.
• IP65
• Cannot be used with anti-rotation ring and 
nameplate.
• Mounting panel thickness: 1.6 to 3.8 mm
110
ø28
59
ø11.6
ø14
ø25
ø29
3.5
3.5
Gasket
Locking Ring
ø25.8
12 3
HW Series Emergency Stop Switches 
ø22
HW
www.apem-idec.eu
D-041










