Siemens 8DJH, Инструкция по установке и эксплуатации

Страница: 32 / 174

4 | Technical data
32/174 8DJH • Installation and Operating Instructions • Version 11 • 500-8384.9
Tab. 25: Power consumption of circuit-breaker motor operating mechanism
Circuit-breaker Max. power consumption
DC AC
Type 2 approx. 80 W approx. 80 VA
Type 1.1 approx. 170 W approx. 230 VA
Tab. 26: Rated current for the motor operating mechanism protection equipment
Rated supply voltage
1)
Recommended rated current for the protection equipment
2)
Circuit-breaker type 1.1 Circuit-breaker type 2
DC 24 V
8 A
3) 8 A
48 V 4 A 6 A
60 V 4 A 4 A
110 V 2 A 2 A
220 V 1.6 A 1.6 A
AC 110 V (50/60 Hz) 3 A 2 A
230 V (50/60 Hz) 2 A 1.6 A
1)
The supply voltage may deviate from the rated supply voltage by max. -20 % to +10 %.
2)
M.c.b. with C-characteristic
3)
Double bus wire
Breaking capacity Operating voltage [V] Normal current [A]
AC 40 Hz to 60 Hz up to 230 10
Resistive load Inductive load
DC 24 10 10
48 10 9
60 9 7
110 5 4
220 2.5 2
Closing solenoid (‑Y9)
The closing solenoid closes the circuit-breaker electrically. The closing command is executed by
application of an auxiliary voltage (AC or DC, depending on the design option).
After closing, the closing solenoid is de-energized internally.
Releases
Releases trip the circuit-breaker. The electrical opening command is transmitted to the OPEN
latch via a magnet armature by unlatching an energy store. Depending on the operating
mechanism used, up to 2 releases can be used.
▪
Shunt release (‑Y1)
Shunt releases are used to trip or electrically open circuit-breakers. The opening command is
executed by application of an auxiliary voltage (AC or DC, depending on the design option).
After opening the circuit-breaker, the release is de-energized internally.
▪ Shunt release (‑Y2)
The shunt release (-Y2) can be operated as an additional release besides the shunt release (-
Y1), and works in the same way.
▪ Undervoltage release (‑Y7)
Undervoltage releases are used to trip or electrically open circuit-breakers. During normal
operation, the shunt releases are supplied with a closed-circuit current from an auxiliary
voltage source (AC or DC, depending on the design option). When the auxiliary voltage falls
below a specific value, or when it is interrupted, the opening operation takes place.
▪ C.t.-operated release (‑Y4)
The c.t.-operated release 3AX1102 is used for protection devices with a relay output, which
are supplied with c.t. current. The tripping circuit is supplied via auxiliary instrument
transformers for tripping. When the required tripping current (0.5 A or 1 A, depending on
the design option) flows in the tripping circuit, the opening operation takes place.