ABB Relion 670 series - Wall mounting dimensions; External resistor unit for high impedance differential protection

19.3.5 Wall mounting dimensions
en04000471.vsd
E
A
B
C
D
IEC04000471 V1 EN
Figure 553: Wall mounting
Case size (inches)
A B C D E
6U, 1/2 x 19” 10.50 10.52 10.74 15.36 9.57
6U, 3/4 x 19” 15.92 14.94 10.74 15.36 9.57
6U, 1/1 x 19” 20.31 19.33 10.74 15.36 9.57
19.3.6 External resistor unit for high impedance differential protection
WARNING! - USE EXTREME CAUTION!Dangerously high
voltages might be present on this equipment, especially on the plate
with resistors. Do any maintenance ONLY if the primary object
protected with this equipment is de-energized. If required by national low/
Section 19 1MRK505222-UUS C
IED hardware
1142
Technical reference manual