Table 8. Binary inputs
Description Value
Operating range ±20% of the rated voltage
Rated voltage 24...250 V DC
Current drain 1.6...1.9 mA
Power consumption 31.0...570.0 mW
Threshold voltage 18...176 V DC
Reaction time 3 ms
Table 9. RTD/mA measurement
Description Value
RTD inputs Supported RTD sensors 100 Ω platinum
250 Ω platinum
100 Ω nickel
120 Ω nickel
250 Ω nickel
10 Ω copper
TCR 0.00385 (DIN 43760)
TCR 0.00385
TCR 0.00618 (DIN 43760)
TCR 0.00618
TCR 0.00618
TCR 0.00427
Supported resistance range 0...2 kΩ
Maximum lead resistance (three-
wire measurement) 25 Ω per lead
Isolation 2 kV (inputs to protective earth)
Response time <4 s
RTD/resistance sensing current Maximum 0.33 mA rms
Operation accuracy Resistance Temperature
± 2.0% or ±1 Ω ±1°C
10 Ω copper: ±2°C
mA inputs Supported current range 0…20 mA
Current input impedance 44 Ω ± 0.1%
Operation accuracy ±0.5% or ±0.01 mA
Table 10. Signal output with high make and carry
Description
Value
1)
Rated voltage 250 V AC/DC
Continuous contact carry 5 A
Make and carry for 3.0 s 15 A
Make and carry for 0.5 s 30 A
Breaking capacity when the control-circuit time constant L/R<40 ms 1 A/0.25 A/0.15 A
Minimum contact load 100 mA at 24 V AC/DC
1) X100: SO1
X105: SO1, SO2, when any of the IEDs is equipped with BIO0005.
X110: SO1, SO2 when REF620 or RET620 is equipped with BIO0005
Transformer Protection and Control
1MRS757846 A
RET620
Product version: 2.0
ABB 19
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