Ref ID : ADR111A/IM/I&S
Rev No. : 04
Page No. : 21 of 127
ADR111A /
ADR211A
1.4 Technical Specifications
AC Measuring Input:
I.
Measurement Accuracy Typical ± 2% In
II.
Frequency measurement
range
45 Hz – 55 Hz
Current Input:
I.
CT secondary 1 / 5 Amp. (Selectable)
II.
Nominal Burden at In
(without tripping condition)
< 0.20 VA at rated current (In)
III.
Thermal Withstand Capacity 40 x rated current (In) for 3sec
2 x rated current (In) continuous
IV.
Measurement Linearity
Range for Non – Offset AC
Current
Linear up to 40 In
Auxiliary Supply Input:
I.
Nominal operating range 24 – 230V AC/DC
II.
Voltage operating range 80% of lower nominal range and 120% of upper nominal
range (For DC Supply)
80% of lower nominal range and 110% of upper nominal
range (For AC Supply)
III.
Nominal Burden on 24 –
230V Auxiliary Power
Supply
24 – 230 VAC < 12 VA
24 – 230 VDC < 5 W
IV.
Tolerable AC ripple Up to 15% of highest dc supply, As per IEC 60255-26:
2013
V.
Relay power up time < 2.5 Sec
Output contact:
I.
Output
Contacts
Continuous 5A/250Vac
Make & carry 30Amp for 3sec AC /DC
Short time withstand 50Amp for 1sec AC /DC
Breaking capacity AC- 1250VA max @ 250V(PF 0.4)
DC- 100W Resistive max. 5A or 300V
50 Watt Inductive (L/R 45ms) max. 5A or 300V
Operating Time <10msec
Minimum no. of
operations
10,000 operation loaded condition & unloaded
100,000 operations
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