Accessories
Remote Close Solenoid
This accessory is an electrically operated solenoid which,
when energized, closes the breaker. It is suitable for control
interlock schemes in which manual closing capability would
not be convenient or would be too slow. It is a n optional ac
cessory for a manually operated breaker, but is required for
an electrically operated breaker. The remote close accessory
is continuously rated and has an anti-pump feature which
prevents a motor operated breaker from repeatedly closing
into a fau lt . Closing control voltage must be removed and
re-applied for each breaker closure.
This accessory consists of an integral electronic control mod
ule and the closing solenoid. When control voltage is applied
to the accessory, the electronic control module applies a
single pulse of current to the solenoid for approximately 0.25
seconds to drive the solenoid before shutting the current off
to a level of approximately lOmA. Voltage m ust be removed
and re-applied to reclose the breaker, thereby providing the
anti-pump feature.
This pulse approach a llows the accessory to be continuously
rated. Control voltage must be removed for 2.5 seconds and
then reapplied each time the solenoid is to be energized.
Removal of the voltag e for significantly less than 2.5 sec
onds will not reset the e lectronic control module and prevent
the solenoid from being energized. Applied control voltag e
(closed circuit voltag e at breaker terminals 34 and 16) must
be 85% to 110% of nominal. The solenoid will not energ ize if
voltage is ramped u p to the acceptable range. Three-cycle
closing time, at nominal voltage, is standard and fulfills the
requirements of generator synchronizing.
Table
25.2
Control Power Requirements For Motor Operators
Table
25.1
Remote Close Solenoid
Catalog Number
SPRCS024
SPRCS048
SPRCS072
SPRCS125
SPRCS120
SPRCS240
Remote close solenoid
Rated Voltage
Operating
Peak Inrush
Peak Full
Average Amps
(50-60 Hz)
Voltage Range
(RMS Amps)
Load Amps
24 Vdc
2 1 - 27 Vdc
30.0
14.0
1 1.0
48 Vdc
41 -
53
Vdc
18.0
7.0
4.5
72 Vdc
62 - 80 Vdc
10.0
4.
5
3.0
120 Vac
102 - 132 Vac
7.5
4.0
2.0
125 Vdc
106 - 137 Vdc
8.0
2.5
1.8
240 Vac
204 - 264 Vac
6.0
2.5
1.0
CD
Charging time apply to normal voltage only; times may vary at maximu m and minimum voltage.
-
Voltage Ratings
Peak Inrush Current
(Amps)
24 Vdc
132
48 Vdc
6.6
72 Vdc
s o
125 Vdc
3.5
120 Vac
3.0
240 Vac
2.0
Charge Time
Recommended
(Sec)CD
Fuse (Sio-blow)
3
12A, 12SV
3
7A. 12SV
3
5A, 125V
3
4A, 125V
3
2 SA, 125V
3
2.SA, 250V
25
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