Engineered for commercial and industrial applications, the Siemens Q33500S01 provides robust thermal-magnetic overcurrent protection. This 3-pole, 35A molded case circuit breaker is rated for 240VAC systems. The unit features a plug-on mounting style for quick integration into compatible Siemens load centers and panelboards. It utilizes Insta-Wire technology to accelerate terminal connections. A built-in 120VAC shunt trip enables remote shutoff capabilities for enhanced safety and control.
What does the 00S01 suffix indicate on this Siemens breaker?
The 00S01 suffix indicates that this breaker includes a factory-installed 120VAC shunt trip. This allows the breaker to be tripped remotely by applying a 120V signal to the shunt trip coil, which is frequently required for emergency shutdown applications.
Which load centers are compatible with the Q33500S01?
This Type QP plug-on breaker is compatible with Siemens EQ, Siemens Ultimate, ITE, and Gould load centers and panelboards that accept 3-pole QP breakers.
How much panel space is required to install this breaker?
As a 3-pole Type QP breaker, it requires three standard 1-inch spaces in a compatible load center or panelboard.
Can this breaker be used to replace older ITE or Gould models?
Yes, Siemens Type QP breakers are the direct, UL-listed replacements for legacy ITE and Gould Type QP breakers with the same amperage and voltage ratings.
Does the Q33500S01 provide common-trip protection?
Yes, it features an internal common trip mechanism. If an overcurrent event occurs on any single phase, or if the 120VAC shunt trip is activated, all three poles will open simultaneously.
What wire sizes are accepted by the terminals on this breaker?
The terminal lugs accept 8 to 6 AWG copper conductors or 8 to 4 AWG aluminum conductors. Always torque the connections to the specifications printed directly on the breaker label.
What type of trip unit does the Q33500S01 use?
It utilizes a fixed thermal-magnetic trip unit. This provides long-time protection against overloads and instantaneous protection against short circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 47 reviews.
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Reviews Summary
Generated by AI from 91 most recent customer reviews
Last updated 8/1/25
Customers say these circuit breakers arrive quickly and match their specifications perfectly. Many reviews mention success finding hard-to-locate specialty breakers through this supplier. Common feedback includes praise for the accurate product descriptions, reliable shipping, and competitive pricing. While some note occasional stock limitations, users consistently report the breakers fit and function as intended.