GE Industrial Solutions Spectra RMS Motor Operators SE150 - Manual

Description
A motor-operated mechanism is designed to open, close,
and reset a circuit breaker by remote control.
In an operating installation, the customer must supply
normally open ON and OFF push-buttons, external wiring,
a control power source, and any control circuitry.
Electrical Operation
With the breaker and operating mechanism in their OFF
positions, press the ON button to energize the motor,
closing the breaker. When the breaker handle reaches the
ON position, the control circuitry is disconnected by an
internal limit switch.
When the OFF button is pressed, the motor is energized,
opening the breaker. After the breaker handle reaches the
OFF position, a limit switch de-energizes the control
circuit.
When the circuit breaker trips automatically, there is no
external trip indication, unless a separate bell alarm
accessory is provided to actuate a warning device. It is
necessary to press OFF to reset the breaker.
Automatic Reset
For automatic reset, an auxiliary switch, available as an
accessory, returns the breaker to the OFF/RESET position
after it has tripped. The switch is mounted inside the
breaker and wired in parallel with the OFF button. When
the breaker trips, the switch closes, moving the breaker
handle to the OFF/RESET position. After the motor-
operated mechanism has reset the breaker, the limit switch
again opens the circuit. To use automatic reset, the ON
push-button must be SPDT type and wired as in Figure 5.
(The Auto/Reset scheme applies to ac devices only and is
not applicable for dc applications.
Manual Operation
Lift the cover to disengage the handle and operate the
breaker handle. To return to electrical operation, align the
breaker handle with the operating mechanism and close
the cover.
Figure 1. Spectra RMS circuit breakers.
g
GEH-5613 Installation Instructions
Spectra RMS™ Circuit Breakers
Motor-Operated Mechanisms for Spectra RMS™
Breaker Types SE150, SF250
Type
SF250
Type
SE150
Push to
Open