Murray: keep the date with the series.

Quick answer

Siemens, which announced the phase-out of the Murray brand in 2019 [S2 p.1], wrote in September 2019 that Murray Meter Combo, EQ Small Circuit and Rock Solid load centers manufactured after January 2002 may use Siemens breakers, and that Siemens breakers are UL listed for use with those products [S1 p.1]. For Murray products made before January 2002, the letter says to use the breaker types on the wiring diagram inside the loadcenter door [S1 p.1]. Separately, Eaton lists certain Murray panelboards and meter centers for its UL Classified Type CL breakers [E1 pp.3, 9].

Left: product and brand documents. Right: CPSC actions. Only dates stated in the cited primary documents; no ownership history is inferred.

1. 1968

   E12 p.78; S9 p.45

   Non-CTL replacement breakers: "For replacement in enclosures manufactured

   prior to 1968 with unnotched stabs" (Eaton); "panels manufactured before 1968"

   (Siemens)

2. 1979

   C1

   FPE: CPSC notice refers to breakers "manufactured before Reliance acquired FPE

   in 1979"

3. 1983

   C1

   Mar 3, 1983: CPSC closes its FPE Stab-lok investigation (2011 note: "without

   making a determination as to the safety" of the breakers)

4. 1987

   C10

   Sept 1986-May 1987: I-T-E load centers installed in this period covered by

   Siemens' free inspection program (notice issued Nov 1, 1988)

5. 1988

   C11

   Apr 13, 1988: Square D Series 1 two-pole GFCI breakers - free replacement

   program

6. 1988

   C2

   Nov 12, 1988: Challenger type HAGF-15 / HAGF-20 GFCI breakers - recall

7. 1998

   C4

   Oct 7, 1998: Siemens / Murray 2-pole GFCI breakers - recall

8. 2002

   S1 p.1

   After January 2002: Murray Meter Combo, EQ Small Circuit and

   Rock Solid load centers may use Siemens breakers (S1 p.1).

9. 2003

   C16

   "authentic Square D circuit breakers manufactured prior to 2003 did not have

   white paint on the amperage numbers"

10. 2004

    C7; C13

    Nov 3, 2004: Square D QO / Homeline AFCI breakers; Nov 19, 2004: Midwest / GE

    meter load centers

11. 2006

    C6, C14, C15, C16, C5

    Nov 2006-Aug 2010: five recalls of counterfeit "Square D" breakers by

    distributors

12. 2010

    C3

    Sept 23, 2010: Siemens / Murray 15-50 A breakers, load centers and meter

    combos (spring clip)

13. 2014

    C17

    Dec 2, 2014: Eaton MBED3042 residential meter breakers

14. 2019

    S1 p.1

    Sept 5, 2019: Siemens letter - "The Murray brand of circuit breakers is being

    phased out"

15. 2022

    C8

    Jun 16, 2022: Square D QO Plug-on-Neutral load centers - recall

16. 2024

    G1 p.1

    Oct 2, 2024: ABB stops accepting new orders for 1/2" THQP breakers

    Eaton: "Eaton has the largest installed base of residential circuit breakers, which includes legacy brands such as Westinghouse, Challenger, Bryant, and our current Type CH & Type BR

    designs." (E5 p.4)

Original drawing and source annotations

The original drawing is schematic, not a product label, field measurement or installation instruction.

Open the original full-size SVG

designs." (E5 p.4)

Sources: E12 Eaton CA08100002E p.78; S9 Siemens SPEEDFAX p.45; C1-C17 CPSC recall notices; S1 Siemens letter 2019-09-05 p.1; G1 ABB notice 2024-06-28 p.1; E5 Eaton MZ00400002E p.4.

Dates are those printed in each notice.

Murray → Siemens cross-reference (from Siemens' 2019 substitution letter)

Source: [S1 p.2]. The copies of S1 and S2 used here are the letters linked from Siemens' "Murray Phase-out" FAQ page ("Murray Products - Phase-out Letter", "Murray Products - Substitution Letter") [S3]. The letter also lists EQ load-center cross references, not reproduced here [S1 p.2]. On p.1 it names "All Murray Meter Combo Load Centers, EQ Small Circuit Load Centers, and Rock Solid Load Centers manufactured after January 2002", and for products made before that date it says to "refer to the wiring diagram affixed to the inside of the door of the loadcenter" [S1 p.1].

UL letter on Murray breaker types in Siemens equipment (2020)

Siemens' support site hosts a UL LLC letter to Siemens Industry dated 2020-02-11, subject "Murray Breaker Types Used in Siemens Equipment" [S11 p.1].

• "At Siemen's request, UL LLC reviewed the documentation associated with Murray Circuit Breakers listed below and compared this documentation to the existing Siemens Circuit Breakers listed below." [S11 p.1]
• "These breakers are identical in construction except for type and catalog number." [S11 p.1]
• "The Murray circuit breaker types, manufactured by Siemens, may be used or are suitable replacements in Siemens panelboards, or other products, designating the use of the Siemens circuit breaker types." [S11 p.2]
• "This comparison for replacement breakers includes evaluation as part of a Series Rating." [S11 p.2]

The table is reproduced row by row as printed, including the repeated QAF2 and QP rows and "QEH22" [S11 p.1].

Where the two documents print pairings differently (both shown as printed):

Murray compatibility table

How to read a Murray panel label

• Find the wiring diagram on the inside of the door. Siemens points pre-2002 owners to it [S1 p.1]. It names the approved breaker types. Murray's own instruction sheet says the same label lists ratings and acceptable components, and that branch breakers must be the type the label requires [S10 pp.1–2].
• Find the catalog number and any manufacturing date. The January 2002 cut-off depends on the manufacture date [S1 p.1].
• Check whether the panel is a Meter Combo, EQ Small Circuit or Rock Solid model. Only those lines are named in the letter [S1 p.1].

Your panel label

01

Panel catalog number

02

Printed breaker types

03

Date code

Illustrative layout. No real model or rating.

Keep the label and the document together.

Catalog numbers, breaker-type lists and dates are different fields. The actual label can use a different layout.

1. Catalog number

   Record the complete identifier, including suffixes. Square D label samples, pp.33–34, 60

2. Printed breaker types

   Keep the wiring-diagram label with the box label. Murray 4810366, p.1

3. Date code

   Preserve the exact code when comparing an applicable notice. CPSC QO notice

Original drawing and source annotations

The original drawing is schematic, not a product label, field measurement or installation instruction.

Open the original full-size SVG

door of the panel" [C8]

Sources: Q7 = Square D catalog 1100CT0501 (06/2026) pp.33-34, 60 (label and wiring-diagram sample callouts); S10 = Murray/Siemens instructions 4810366 Rev. D pp.1-2; C10, C3, C8 =

CPSC recall notices (1988; 2010; 2022). The panel label and a licensed electrician decide what may be installed.

Era and series history

Siemens wrote that Siemens and Murray meter combos, EQ Small Circuit load centers and breakers "are typically identical in construction and only differ in labeling" [S2 p.1].

Recalls and counterfeits

• CPSC recall 10-354 (2010).
  • Murray catalog numbers MP115, MP115U, MP120, MP130, MP215, MP230, MP230U and MP250 with date code 0610 or 0710, alongside Siemens Q-type breakers [C3].
  • About 2.2 million units in total [C3].
  • Hazard: a spring clip can break, causing loss of connection force, overheating and arcing [C3].
• 1998 recall. About 144,000 Siemens- or Murray-branded 2-pole GFCI breakers. The sticker reads "2 Pole Unit" [C4].

Common confusions

• "Every Murray panel can take Siemens breakers." Siemens' letter names Meter Combo, EQ Small Circuit and Rock Solid load centers "manufactured after January 2002" [S1 p.1].
• "Eaton BR is the Murray replacement." Eaton's Classified line for listed Murray panels is CL [E1] [E3 p.3]. Eaton describes BR as the replacement for Westinghouse, Challenger and Bryant loadcenters [E5 PDF p.5].
• "Murray breakers are gone, so the panel must be replaced." Siemens equivalents are documented for the post-2002 lines [S1 p.1–2]. For older panels, the door label decides.

FAQ

Are Siemens and Murray breakers interchangeable? For Murray Meter Combo, EQ Small Circuit and Rock Solid load centers made after January 2002, Siemens says Siemens breakers may be used and are UL listed for them [S1 p.1]. For older Murray panels, follow the door wiring diagram [S1 p.1].

What breakers are compatible with Murray MP-T? Siemens' cross-reference maps MP-T / MP-HT / MP-MT to QP / QPH / HQP [S1 p.2]. Siemens' letter: "Siemens brand circuit breakers are UL listed for use with the Murray products manufactured after that date"; for products made before January 2002 it refers to "the wiring diagram affixed to the inside of the door of the loadcenter" [S1 p.1].

Can I use an Eaton CL breaker in a Murray panel? Only if the Murray panelboard or meter center catalog number is on Eaton's list IL00304001Y [E1 pp.3, 9], within 120/240 V and 10 kA [U1 item 97].

Were Murray breakers recalled? Two CPSC recalls on record name Murray breakers: certain 2-pole GFCI breakers sold 1996–1998 [C4], and certain breakers dated 0610/0710 in 2010 [C3].

Do they still make Murray breakers? Siemens phased out Murray breakers in December 2019 [S2 p.1].

Is Murray the same as Siemens? Murray's instruction sheet prints "Murray Electrical Products" and "Siemens Industry, Inc." in its footer [S10 p.1], and Siemens' September 2019 letter sets out the Murray phase-out dates [S2 p.1]. Siemens says Siemens and Murray meter combos, EQ Small Circuit load centers and breakers are "typically identical in construction and only differ in labeling" [S2 p.1]. Siemens' substitution letter names Murray products "manufactured after January 2002" [S1 p.1].

Are Murray and Square D breakers interchangeable? Murray made a ¾-inch Type MSQ breaker that Siemens' 2017 catalog describes as UL Classified for use in specific Square D load centers in place of Square D QO breakers [S6 PDF p.61]. Murray breakers were phased out in 2019 [S2 p.1], and Siemens maps MSQ to its Type QD [S1 p.2]. Square D says only Square D breakers keep its QO and Homeline listing [Q1].

Sources

All documents fetched 2026-11-15 or 2026-11-16 and archived with SHA256 (see SOURCE-LIBRARY.csv). Kind: primary = issued by the manufacturer/agency; primary-mirror = manufacturer document hosted by a third party.

Cross reference reproduced as text from the letter's table (S1 p.2). The letter names Murray products manufactured after January 2002 (S1 p.1).

After January 2002: "All Murray Meter Combo Load Centers, EQ Small Circuit Load Centers, and Rock Solid Load Centers manufactured after January 2002 may use Siemens brand circuit breakers." (S1 p.1) Before January 2002: "please refer to the wiring diagram affixed to the inside of the door of the loadcenter for the specific breaker types that are approved for that panel." (S1 p.1)

Type in the letter

Combination Type AFCI

Murray

MP-AT2 / MP-HAT2 / MP-MAT2

Siemens

QAF2 / QAFH2 / HQAF2

Type in the letter

Combination Type AFCI

Murray

MP-AT2 / MP-HAT2

Siemens

QAF / QAFH

Type in the letter

Branch-Feeder AFCI

Murray

MP-AT2 / MP-HAT2 / MP-MAT2

Siemens

QAF2 / QAFH2 / HQAF2

Type in the letter

Dual Function AFCI/GFCI

Murray

MP-GAT2 / MP-HGAT2 / MP-MGAT2

Siemens

QFGA2 / QFGAH2 / HQFGA2

Type in the letter

Ground-Fault Circuit Interrupters (Class A - 5mA)

Murray

MP-GT / MP-HGT

Siemens

QPF2 / QPHF2 / HQPF2

Type in the letter

Ground-Fault Circuit Interrupters (Class A - 5mA)

Murray

MP-GT / MP-HGT

Siemens

QPF / QPHF

Type in the letter

Ground Fault Equipment Protection (30mA)

Murray

MP-ET / MP-HET

Siemens

QE / QEH

Type in the letter

Ground Fault Equipment Protection (30mA)

Murray

MP-ET / MP-HET

Siemens

QE / QEH

Type in the letter

Full Size (1" per Pole) with INSTA-WIRE

Murray

MP-T / MP-HT / MP-MT

Siemens

QP / QPH / HQP

Type in the letter

Duplex, Triplex and Quadplex Plug-in Breakers

Murray

MH-T

Siemens

QT

Type in the letter

Special Application Breakers

Murray

MP-T / MG

Siemens

QP / QG

Type in the letter

Type MSQ, 3/4 Inch Plug-In Breakers

Murray

MSQ

Siemens

QD

Type in the letter

Main and Branch Circuit Breakers

Murray

MD-T / MD-HT / MD-MT

Siemens

QN / QNH / HQN

Type in the letter

Main and Branch Circuit Breakers

Murray

M1 / M2

Siemens

EQ8681 / EQ8682 / EQ8693 / EQ8695 / EQ8696

Type in the letter

Main and Branch Circuit Breakers

Murray

ED-A

Siemens

QPJ

Type in the letter

Main and Branch Circuit Breakers

Murray

MPP / MPP-HT / MPP-MT / MPP-PT

Siemens

QPP / QPPH / HQPH / HQPP / HQPPH

Type in the letter

Circuit Breaker and Surge Protective Device (SPD)

Murray

MSA

Siemens

QSA

Original letter, pp.1–2 · Compare the separately printed UL letter: S11

Original drawing and source annotations

The original drawing is schematic, not a product label, field measurement or installation instruction.

Open the original full-size SVG

QSA

Sources: S1 Siemens Industry letter "To whom it may concern", September 5, 2019, pp.1-2 (copy linked from the Siemens Sandy FAQ page and hosted on compas-training-

videos.s3.amazonaws.com; primary-mirror). The letter also lists EQ load-center cross references (not shown).