ABB RELION 670 Series Technical Manual page 1348

Section 22
IED hardware
22.3.7 External current transformer unit
IEC06000233 V1 EN-US
Figure 681: Dimension drawing of summation current transformers
22.4 Mounting alternatives
22.4.1 Flush mounting
22.4.1.1 Overview
The flush mounting kit can be used for case sizes:
• 1/2 x 19"
• 3/4 x 19"
• 1/1 x 19"
• 1/4 x 19" (RHGS6 6U)
Only a single case can be mounted in each cut-out on the cubicle panel, for class IP54 protection.
1342
Dimension
mm [inches]
Flush mounting cannot be used for side-by-side mounted IEDs when IP54 class
must be fulfilled. Only IP20 class can be obtained when mounting two cases side-
by-side in one (1) cut-out.
To obtain IP54 class protection, an additional factory mounted sealing must be
ordered when ordering the IED.
482.6 [19]
1MRK 502 066-UUS B
SEMOD154033-4 v1
xx06000233.vsd
IP11721-1 v1
IP10303-1 v1
M11967-3 v4
Technical manual