A drop-in replacement for discontinued Murray panels, the Siemens MP1515N provides two 15A circuits in a single-pole space. Built for residential and commercial applications, this non-CTL tandem breaker is ideal for expanding capacity in older load centers without requiring panel upgrades. It installs into compatible Siemens and Murray enclosures via a standard plug-on connection. Rated at 10 kAIC at 120/240VAC, it features thermal-magnetic trip technology and replaces the Q1515NC model.
The MP1515N is a Non-CTL (non-circuit total limiting) tandem breaker. It lacks a rejection clip and is intended for older panels built before CTL requirements restricted the number of tandem breakers.
Can the Siemens MP1515N replace older Murray tandem breakers?
Yes. Siemens manufactures the MP1515N as a direct, UL-listed replacement for legacy Murray MH-T and EP series 15/15A tandem breakers.
How much panel space does the MP1515N require?
This duplex breaker provides two independent 15A circuits while occupying a single 1-inch pole space in the load center.
Which load centers are approved for use with the MP1515N?
It is approved for installation in compatible Siemens and Murray load centers that accept Type MP-T or MH-T plug-on circuit breakers.
What wire gauge and material do the MP1515N terminals accept?
The box lug terminals accommodate 14 to 8 AWG copper conductors or 12 to 8 AWG aluminum conductors.
What type of trip mechanism does the MP1515N use?
It features a thermal-magnetic trip unit with fixed long-time and instantaneous (LI) trip functions to protect against overloads and short circuits.
What is the Siemens-branded equivalent to the MP1515N?
The Siemens Q1515NC is the direct equivalent 15/15A Non-CTL tandem breaker. Both are manufactured by Siemens, but the MP1515N retains the Murray MP frame designation for legacy panel compliance.
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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