Square D M9F Multi9 C60BP Mini...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$111.46
Square D M9F Multi9 C60BP Miniature Circuit Breaker, C Curve

Square D M9F Multi9 C60BP Miniature Circuit Breaker, C Curve

(No reviews yet) Write a Review

Model: M9F42120

In Stock (leaves warehouse same day if ordered before 3pm ET)

$111.46
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Square D M9F Multi9 C60BP Miniature Circuit Breaker, C Curve

The Square D Multi9 C60BP is a low-voltage miniature circuit breaker (MCB) built for reliable branch circuit and motor protection in commercial and industrial installations. This 1P (single protected pole) family is available in amperage ratings from 1A to 20A with a C tripping curve, giving specifiers a consistent platform across a full range of Motor FLA requirements. Every rating in the family shares a rated short-circuit breaking capacity up to 3kA at 415VAC per EN/IEC 60947-2, and the C60BP is UL 489 listed and suitable for both AC and DC network types.

Key Features

  • Configuration: 1P (single protected pole) design with a C tripping curve for general branch circuit and motor protection.
  • Amperage Range: Available in ratings from 1A to 20A at 25°C per EN/IEC 60947-2, selectable to match Motor FLA requirements.
  • Breaking Capacity: Rated short-circuit breaking capacity up to 3kA at 415VAC (EN/IEC 60947-2); Ics rated service breaking capacity of 7.5kA at 240VAC and 2.25kA at 415VAC across the family.
  • Rated Operational Voltage (Ue): 240V AC 50/60Hz, 415V AC 50/60Hz, and 60V DC for AC and DC network applications.
  • Insulation & Impulse Withstand: Ui rated insulation voltage of 500V AC; Uimp rated impulse withstand voltage of 6kV.
  • Degree of Protection: IP20 standard, IP40 in modular enclosure, conforming to IEC 60529.
  • Electrical Durability: Rated for 10,000 operating cycles.
  • Terminals: Tunnel-type terminals (top or bottom) accepting 1-25 mm² / AWG 18...AWG 8 rigid conductors, with an 18 mm connection pitch between devices.

Certifications & Compliance

  • UL Listed (UL 489)
  • CSA Certified (CSA C22.2 No 5)
  • IEC / EN 60947-2 Certified
  • CCC Certified
  • GB 14048.2 Compliant
  • Suitable for Isolation per EN/IEC 60947-2

Technical Specifications

  • Configuration: 1P
  • Amperage Range: 1A - 20A
  • Ambient Air Temperature For Operation: -30-70 °C
  • Mercury Free: Yes
  • Toxic Heavy Metal Free: Yes
  • China ROHS In Scope: Yes
  • ROHS Eur Full Compliance Status Id: COMPLIANT

Typical Applications

  • Commercial and Industrial Panelboard Wiring
  • Branch Circuit Overcurrent Protection
  • Control Panel and OEM Equipment Protection
  • AC and DC Network Distribution Systems
  • Renovation and New Construction Electrical Projects

Why Square D?

Square D by Schneider Electric engineers the Multi9 C60BP family to meet demanding UL 489 and EN/IEC 60947-2 standards, backed by IEC, CSA, and CCC certifications for global specification confidence. With a 10,000-cycle electrical durability rating, tunnel-type terminals, dual AC/DC network compatibility, and a full 1A to 20A amperage lineup, the C60BP delivers dependable, code-compliant circuit protection professionals can specify with confidence across a wide range of branch circuit and motor protection applications.

Manufacturer Resources

Product Specs

Product Type:
Miniature Circuit Breaker
Series:
Multi9
Configuration:
1P
Voltage Rating:
240/415V AC
Amperage Rating:
1A - 20A
Listing:
UL Listed
Standards:
IEC 60947-2
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Circuit Breakers

Square D M9F42120 – Frequently Asked Questions

1) What amperage ratings does the Square D Multi9 C60BP C-curve breaker come in?
The C60BP is offered in eight current ratings: 1A, 2A, 3A, 5A, 6A, 10A, 15A and 20A, ordered as M9F42101 through M9F42120 (the last two digits track the amp rating). All are single pole with a C tripping curve, so you pick the rating to match the branch circuit conductor and load, not the breaker body.
2) Is the Square D C60BP a UL 489 branch circuit breaker or a UL 1077 supplementary protector?
It is UL 489 listed, which means it can be used for branch circuit overcurrent protection, not just supplementary protection downstream of another device. That matters if an inspector is looking at the panel: a UL 1077 supplementary protector, such as the ABB ST200M, is not accepted as branch circuit protection. The C60BP is also CSA certified to C22.2 No 5 and certified to EN/IEC 60947-2.
3) What wire size will the Square D C60BP terminals accept?
Tunnel-type terminals at the top or bottom take rigid conductors from 1 to 25 mm2, which is AWG 18 through AWG 8. That covers a #12 or #10 branch circuit conductor without an adapter, and small control wire at the low-amp end of the range.
4) Can the Square D C60BP be used on a DC circuit?
Yes. It is rated for both AC and DC networks, with rated operational voltages of 240V AC and 415V AC at 50/60Hz, plus 60V DC. Above 60V DC it is outside its rating, so a higher voltage DC bus needs a purpose-rated DC breaker.
5) What is the interrupting capacity of the C60BP, and is it enough for my panel?
Breaking capacity is up to 3kA at 415VAC per EN/IEC 60947-2, with an Ics rated service breaking capacity of 7.5kA at 240VAC and 2.25kA at 415VAC. Check that against the available fault current at the point of installation. If your short circuit study puts more than that at the breaker, you need a molded case device instead, such as an ABB A2N Series or E150 Series 3-pole molded case breaker.
6) Will a C60BP work for a three phase feeder, or do I need something else?
The C60BP sold here is single pole only, so it protects one phase. For a three phase load you would need three poles. Three-pole options in the same catalog include the ABB A2N Series and ABB E150 Series molded case breakers, or the ABB XT4 Series 3-pole kit. Ganging single pole MCBs is not a substitute unless the device is supplied with a factory tie.
7) Can an ABB ST200M be used in place of a Square D Multi9 C60BP for branch circuit protection?
No. The Square D Multi9 C60BP is UL 489 listed, which is the standard that qualifies a device to protect a branch circuit. The ABB ST200M miniature circuit breaker is a UL 1077 device, a supplementary protector intended to add protection downstream of a branch circuit device rather than serve as the branch circuit breaker itself. Both are DIN-rail miniature breakers and look interchangeable in a panel, but only the UL 489 listed C60BP satisfies a branch circuit overcurrent requirement. Use the ST200M where the design calls for supplementary protection inside equipment or a control panel.
8) What should I use instead of a Square D C60BP when the feeder needs a three-pole breaker?
The Square D Multi9 C60BP configuration is a single protected pole rated 20A, so it covers single-phase branch circuits rather than three-phase feeders. For a three-pole application, the ABB A2N series molded case circuit breaker is a UL listed three-pole device, and the ABB E150 series is a three-pole thermal magnetic breaker. Both are molded case designs that mount differently from a DIN-rail miniature breaker, so confirm the enclosure and mounting provisions before ordering.
9) Why choose a C curve breaker instead of a B or D curve for a motor or transformer load?
A C tripping curve rides through moderate inrush, which is what you want on small motors, transformer primaries, contactor coils and lighting ballasts that would nuisance trip a faster curve. It is the general purpose choice for mixed branch circuits. Heavy inrush loads that still trip a C curve need a higher magnetic setting instead, and purely resistive loads can use a lower curve. The C60BP is sold here only with the C curve, so curve is not a selection you make on this device.
10) How much DIN rail space does a C60BP take, and what is the spacing between breakers?
Each single-pole C60BP occupies two 9 mm pitches, giving an 18 mm connection pitch between devices. That is the standard one-module width for DIN rail mounted MCBs, so it lines up with 18 mm pitch busbar combs and standard modular enclosure knockouts.
11) Can I install the C60BP in an unheated warehouse or an outdoor enclosure?
Operating ambient range is -30 to 70 degrees C, so unconditioned and cold spaces are within the device rating. Enclosure protection is the limiting factor: the breaker itself is IP20, reaching IP40 when mounted in a modular enclosure per IEC 60529. Neither is a wet location rating, so outdoors it needs a suitably rated enclosure around it.
12) How many operations is the Multi9 C60BP good for if I switch it daily?
Electrical durability is rated at 10,000 operating cycles. That is fine for protection duty and occasional isolation, but a circuit switched several times a day as part of normal operation should be switched by a contactor or a switch-rated device, with the breaker left for protection and lockout. The C60BP is suitable for isolation per EN/IEC 60947-2 and has a contact position indicator, so you can verify open contacts before working on the circuit.
13) Is the Square D C60BP acceptable for an export or multi-country project spec?
It carries UL 489, CSA C22.2 No 5, IEC/EN 60947-2 and CCC certification, and complies with GB 14048.2, which covers North American, European and Chinese jobs off one part number. It is RoHS compliant for Europe and mercury free. Note the REACH status is listed as containing an SVHC, which some institutional procurement specs ask about.
14) Is the ABB XT4 kit a substitute for a Square D Multi9 C60BP in a panelboard?
They solve different problems. The ABB XT4 is a three-pole molded case circuit breaker kit, sized and mounted as a molded case device. The Square D Multi9 C60BP is a single-pole DIN-rail miniature circuit breaker built to EN/IEC 60947-2 with a C tripping curve for branch circuit protection, offered from 1A through 20A. If the drawing calls for a single-pole DIN-rail MCB on a 20A branch, stay with the C60BP; the XT4 kit belongs where a three-pole molded case frame is specified.
15) What is the insulation and impulse withstand rating on the C60BP?
Rated insulation voltage (Ui) is 500V AC and rated impulse withstand voltage (Uimp) is 6kV. The 6kV Uimp is the figure a panel builder needs when documenting overvoltage category for control panel and OEM equipment builds.
How fast can I get the Square D M9F42120 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D M9F42120 come with a warranty?
Absolutely. The Square D M9F42120 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D M9F42120?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Square D M9F42120 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!