Siemens SIRIUS 3RT Manual page 187

Mounting / disassembling size S3 (snap-on mounting)
Size S3 contactors can be snapped onto a 35 mm DIN rail according to IEC 60715 or onto a
75 mm DIN rail.
①
Disassembling size S3
① ②
/
③
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
Position the device on the top edge of the mounting rail and press it down until it snaps onto
the bottom edge of the rail.
To disassemble, press the locking device down with a screwdriver.
Press the device down, pushing against the mounting springs, and swivel the device to
remove it.
Mounting
7.2 Mounting
187