Figure 3-68: Snap-On Attachment; Figure 3-69: Installation Positions - Siemens sirius System Manual

Snap-on attachment on
rails
Installation positions
SIRIUS System Manual
GWA 4NEB 430 0999-02b
Snap-on attachment is possible:
• Frame sizes S00 to S3: on 35 mm rail
• Frame size S3: on 75 mm rail. The height of the rail must be at least
15 mm.
The following illustration shows you how to mount the device onto the rail:
Frame sizes S00 and S0
1
2
Frame sizes S2 and S3
1
4
3
3

Figure 3-68: Snap-on attachment

The contactors are designed for use on vertical surfaces. The following
installation positions are permissible for AC and DC operation:
22,5°
360°
22,5°
315°
225°

Figure 3-69: Installation positions

Place the device on the upper edge
of the rail, and press it downward
until it snaps onto the lower edge of
the rail (1).
Push the device downward to
release the tension of the mounting
spring, and remove the device by
tilting it (2).
Place the device on the upper edge
of the rail, (1) and press it down-
ward toward the rail until it snaps
2
onto the lower edge of the rail (2).
Using a screwdriver, push the lug
on the lower rear side of the device
downward to release the tension of
the mounting spring (3), and
remove the device by tilting it (4).
22,5°
Without overload relay
22,5°
With 3RU1 overload relay
3RT1/3RH1 contactors
3-87