Current and Voltage Controls
1-Phase Max. and Min. Current Control
Type H 479
鈥?AC current metering relay
鈥?Measuring range: 0.5 - 500 AAC with 1-phase
current metering transformer, type MI...
鈥?Upper and lower current limits separately adjustable
鈥?Output: 8 A DPDT relay
鈥?For mounting on DIN-rail in accordance with
DIN/EN 50 022
鈥?H4-housing
鈥?LED-indication for power supply and output ON
鈥?AC power supply
Product Description
1-phase AC current metering
relay. For mounting on DIN-
rail. Adjustment of upper and
lower current values possible.
Often used where a reaction
has to be taken e.g. when a
motor exceeds the set value.
Ordering Key
Housing
Type
Output
Power supply
H 479 166 230
Type Selection
Plug
Screw
terminals
Output
DPDT
Supply: 24 VAC
H 479 166 024
Supply: 115 VAC
H 479 166 115
Supply: 230 VAC
H 479 166 230
Input Specifications
Input
Terminals 7 & 8
Overvoltage cat. III (IEC 60664)
nom. voltage: 0.4-4 V
p
max.
20 V from current trans-
former MI ...
Impedance
9.9 k鈩?/div>
Measuring ranges
Range
Max. current
Types of current transformers AAC rms rms
MI 5
0.5 - 5
20 AAC
MI 20
2 - 20
50
MI 100
10 - 100
250 AAC
MI 500
50 - 500
700 AAC
Output Specifications
Output
Rated insulation voltage
Contact ratings
(AgCdO)
Resistive loads
AC 1
DC 1
or
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
AC 1
DPDT relay
250 VAC (rms)
(cont./elect., cont./cont.)
碌 (micro gap)
8 A/250 VAC (2000 VA)
0.4 A/250 VDC (100 W)
4 A/25 VDC (100 W)
2.5 A/230 VAC
5 A/24 VDC
鈮?/div>
30 x 10
6
operations
鈮?/div>
2.5 x 10
5
operations
(at max. load)
鈮?/div>
7200 operations/h
Supply Specifications
Power supply AC types
Rated operational voltage
Through term. 21 & 22 024
115
230
Voltage interruption
Dielectric voltage
Rated impulse withstand volt.
Overvoltage cat. III (IEC 60664)
(IEC 60038)
24 VAC 鹵 15%, 45 to 65 Hz
115 VAC 鹵 15%, 45 to 65 Hz
230 VAC 鹵 15%, 45 to 65 Hz
鈮?/div>
40 ms
2 kVAC (rms) (supply/elect.)
4 kV (1.2/50 碌s) (line/neutral,
line/line), no direct connec-
tion to electronics
2.5 VA
Operating frequency
Dielectric strength
鈮?/div>
2 kVAC (rms) (cont./elect.)
Dielectric voltage
Rated impulse withstand volt. 4 kV (1.2/50 碌s) (cont./elect.)
(IEC 60664)
Rated operational power
Specifications are subject to change without notice (26.10.99)
1
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