Ref ID : ADR111A/IM/I&S
Rev No. : 04
Page No. : 22 of 127
ADR111A /
ADR211A
Accuracy of protection function:
I.
Phase/ Ground Over current:
For operating
Value
Pick-up 1.05 x Setting ±5%
Drop –off 0.95 x Setting ±5%
For operating
Time
IDMT Characteristic shape As per class5 of 60255-151 cl.5.2**
or 55ms whichever is greater
DT Operation ±5% or 55ms whichever is greater*
Note “ * “ indicates Reference Condition that is Fault current 2 time
above set value.
II.
CB Fail
For operating
Time
DT Operation ±5% or 55ms whichever is greater
CBF Reset <60ms
**Note: As per IEC60255-151 Class 5 (assigned error 5%) the tolerance calculated as below;
Value of characteristic quantity as multiple of setting value (GS) 2N 5N 10N 20N
Limiting error as multiple of an assigned error 2.5 1.5 1 1
Percentage for time accuracy claim 12.5% 7.5% 5% 5%
Operating condition:
I.
Relative Humidity : Humidity (RH) 95% maximum
II.
Operating temperature range : -25 ºC to +65 ºC
III.
Storage temperature range : -25 ºC to +70 ºC
Terminals specification:
I.
AC current and Voltage Input Terminals M4 Threaded terminals for ring lug
connection. Suitable up to 4 mm
2
II.
Auxiliary & Input/output Terminals M4 Threaded terminal. Suitable up to 2.5
mm
2
III.
Note on M4 Terminal Torque Use torque control screw driver with 1.2 N-
m torque maximum
IV.
Rear Communication Terminal Four/Two wire RS422/RS485 signal levels
Suitable up to Multi core shielded
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