Part of the legacy Murray family, the Siemens MP1520 tandem breaker provides both a 15A and 20A circuit within a single 1-inch pole space. Designed for residential and commercial power distribution, it features a plug-on mounting style with CTL rejection to ensure proper installation in approved load centers. This unit replaces the Q1520 and includes Insta-Wire connectors for faster setup. It offers thermal-magnetic protection with a 10 kAIC rating at 120/240VAC and is fully HACR rated.
Can I install the Murray MP1520 in a Siemens load center?
Yes. Siemens acquired Murray, and the MP1520 is UL-listed for use in compatible Siemens and Murray load centers. You must ensure the specific panel is designed to accept tandem breakers.
Will the MP1520 fit in any available single-pole panel space?
No. As a tandem breaker, it must be installed in panel slots specifically designated to accept duplex breakers. Check the wiring diagram on your panel door to confirm which slots allow tandem installation.
Can the MP1520 be used to supply a 240V load?
No. This tandem breaker provides two independent 120V circuits from a single-pole space. It lacks a common trip tie and does not span two phases, so it cannot be used for 240V appliances.
What is the Siemens direct cross-reference for the Murray MP1520?
The Siemens equivalent is the Q1520. Because Siemens manufactures both product lines, the Q1520 serves as the direct replacement for the MP1520 in compatible load centers.
Does this breaker provide AFCI or GFCI protection?
No. The MP1520 is a standard thermal-magnetic breaker designed for overload and short-circuit protection only. It does not include arc fault or ground fault circuitry.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
Thank you so much for sending me a 100 amp breaker that was in the condition that you said it would be in.With out your breaker I would still be in the dark Thank you David