Siemens Argus 7SR21 Technical Manual page 485

201.5
PANEL CUT-OUT
182
9.75
Diameter 3.6 - 4 holes (see note)
207.5
FRONT VIEW
NOTE:
THE 3.6 HOLES ARE FOR M4 THREAD FORMING (TRILOBULAR) SCREWS. THESE ARE SUPPLIED AS STANDARD AND ARE SUITABLE FOR
USE IN FERROUS / ALUMINIUM PANELS 1.6mm THICK AND ABOVE. FOR OTHER PANELS, HOLES TO BE M4 CLEARANCE (TYPICALLY 4.5
DIAMETER) AND RELAYS MOUNTED USING M4 MACHINE SCREWS, NUTS AND LOCKWASHERS (SUPPLIED IN PANEL FIXING KIT).
2) ACCESS CLEARANCE REQUIRED FOR OPTIONAL ETHERNET COMMS MODULE RETAINING SCREW
Figure 3.1-2 Overall Dimensions (mm) and Panel Drilling for Size E8 Epsilon Case
Unrestricted ©2018 Siemens Protection Devices Limited
11 31
Typical
when SIDE VIEW
fitted
MINIMUM CLEARANCES:
25mm FOR TERMINAL WIRING
45mm FOR ETHERNET COMMS MODULE
70mm FOR F/O COMMS CABLE
Case Earth connection
TOP VIEW
FRONT
7SR210 & 7SR220 Installation Guide
Case Earth
connection
216.5
See note 2
Optional
ethernet
comms
module
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