Siemens RL Instructions

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OPTIONAL DEVICES
OPERATION COUNTER
This option consists of a mechanically operated counter
with a bracket that mounts at the bottom of the breaker
mounted auxiliary switch. The counter arm connects
through a spring to the switch operating arm. The counter
is non-resettable. The breaker must have an auxiliary
switch for this option to mount.
MAINTENANCE CLOSING
DEVICE
This device is a manual charging handle assembly ar-
ranged for use as a maintenance tool. The charge link is
spring loaded and retained to make insertion into the
breaker frame less difficult and the pivot pin is retained by
a chain. After charging the closing springs, the handle
must be manually returned to the vertical position to allow
closing the breaker.
ELECTRICALLY OPERATED
INTERLOCK
These devices amount to an additional solenoid that must
be energized before the breaker can be closed. When the
device is de-energized the breaker is held trip-free so that
it cannot be closed either electrically or manually. The
devices are available for 48, 125 and 250 volt D.C. as well
as for 120 and 240 volt A.C. They are similar in construc-
tion and mount in the same location as the undervoltage
trip device. The electrical interlock has a mechanical link
from the device to the main shaft of the breaker to hold the
device in the picked-up position when the breaker is
closed. Once closed the device can be de-energized with-
out tripping the breaker. There are no adjustments for
pick-up or drop-out voltages of the device. The devices
are designed
to be energized continuously.
UNDERVOLTAGE TRIP
DEVICE OPTION
This device automatically trips the circuit breaker on loss
of voltage. Either instantaneous or time-delay operation
can be supplied. A .06 inches (1.5 mm) gap should be
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maintained between flap extension and pull link when the
device is energized with the pick-up and drop-out is set so
that the device picks up at a voltage of 85% or less and
drops out between 30 and 60% of rated value.
NOTE Pick-up and drop-out are individually adjust-
able. Timedelayisadjustablefrom .04to4sec.
LATCH CHECK SWITCH
This option is a small switch mounted on a bracket. The
switch operator is adjusted so the switch is operated by
and indicates the position of the breaker trip flap. The
latch check switch may be used in conjunction with the
electrical interlock or undervoltage devices to delay the
application of voltage to the close coil until the undervolt-
age or interlock device has picked-up.
STATIC TRIP II
The Static Trip II device mounts onto a slide-type bracket
on the circuit breaker. To remove trip device, the terminal
block cover located above it should be removed, exposing
the terminal block screws. The lower row of screws can be
loosened
with a screwdriver allowing the terminal block
fanning strip to be removed from the terminal block. Re-
moval
of the fanning strip exposes a mounting screw. This
screw can be removed, allowing the static trip device to be
removed from the circuit breaker. Just pull the trip device
towards the front of the circuit breaker. See Instruction
Book SG-3098 for operating instructions.
BELL ALARM SWITCH OPTION
This unit functions to operate a switch. A single-pole
double-throw, or a double-pole double-throw switch is
available.
The switch operator is connected to and oper-
ated by the tripping actuator. The switch operator remains
tripped even when the actuator is reset by the circuit
breaker. The switch operator must be reset either manu-
ally or by an additional optional electrical reset solenoid.
The contacts of the bell alarm switch can be connected in
series with the circuit breaker closing coil, to provide a
lockout feature to prevent reclosing after a fault.
Courtesy of NationalSwitchgear.com

Siemens RL Specifications

General

Rated Voltage	250VAC, 30VDC
Mechanical Life	10, 000, 000 operations
Operating Temperature Range	-40°C to +70°C
Contact Configuration	SPDT
Contact Rating	10A
Electrical Life	100, 000 operations
Mounting Type	PCB