Part of the QP series, the Siemens Q310000S01 is a 100A, three-pole miniature circuit breaker built for commercial and industrial distribution. It includes a factory-installed 120VAC shunt trip, enabling remote disconnection of the circuit. This plug-on breaker mounts into compatible Siemens load centers and panelboards, with the shunt trip occupying an additional pole space. Operating at 240VAC with a 10 kAIC rating, it relies on thermal-magnetic technology for accurate protection.
What does the "00S01" suffix indicate on this Siemens breaker?
The "00S01" suffix designates a factory-installed 120VAC shunt trip. This feature allows the breaker to be tripped remotely by applying a 120V control signal, which is frequently required for emergency stop circuits or fire alarm system integration.
How many panel spaces are required to install the Q310000S01?
This breaker requires four 1-inch pole spaces. Although it is a 3-pole breaker, the factory-installed shunt trip module occupies a fourth pole space to house the internal magnetic coil.
Does the shunt trip module connect to the panel bus bar?
No, the additional pole space used by the shunt trip does not draw power from the bus bar. It requires dedicated external 120VAC control wiring to activate the remote tripping mechanism.
Is the Q310000S01 compatible with older Murray load centers?
Siemens QP breakers are the direct, manufacturer-approved replacements for obsolete Murray MP-T breakers. This breaker can be installed in a Murray panel as long as the panel wiring diagram lists QP or MP-T as an approved type.
Will the breaker still trip on an overload if the shunt trip control power is lost?
Yes, the thermal-magnetic trip unit operates independently of the shunt trip. The breaker will still provide standard long-time overload and instantaneous short-circuit protection even if the 120V control power to the shunt trip is disconnected.
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