7SR11 & 7SR12 Installation Guide
Chapter 5 Page 8 of 32 ©2017 Siemens Protection Devices Limited
Section 3: Dimensions and Panel Fixings
3.1 Relay Dimensions and Weight
Relays are supplied in the modular size E4 or E6 cases
The following drawings which are also available from the website give panel cut-out and mounting details.
TOP VIEW
FRONT
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).
PANEL CUT-
OUT
168
78
98.5
159
10.25
Diameter 3.6 - 4 holes (see note)
FRONT VIEW
103.5
177
SIDE VIEW
31
216.5
15
1.5
11
Case Earth
connection
Typical
when
fitted
25mm MINIMUM CLEARANCE FOR TERMINAL WIRING
Figure: 3.1-1 Overall Dimensions (mm) and panel Drilling for Size E4 Epsilon case
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