ABB S200MUC 2-Pole K-Curve 10A...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$876.79
ABB S200MUC 2-Pole K-Curve 10A AC/DC Miniature Circuit Breaker

ABB S200MUC 2-Pole K-Curve 10A AC/DC Miniature Circuit Breaker

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Model: S202MUC-K10

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

$876.79
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ABB S200MUC 2-Pole K-Curve 10A AC/DC Miniature Circuit Breaker

The ABB S200MUC extends the established System pro M compact® range with a miniature circuit breaker (MCB) engineered for both AC and DC applications. This 2-pole, K-curve, 10A unit delivers a high inbuilt short-circuit breaking capacity of 10 kA at 500 V DC and 6 kA at 480Y/277 V AC, backed by approvals under CSA 22.2 No. 235, IEC/EN 60947-2, and UL 1077. Whether used in warehousing, project engineering, or maintenance work, the S200MUC offers a simple, flexible protection solution that pairs with all current System pro M compact® accessories.

Key Features

  • Configuration: 2-pole design with a K trip curve for reliable overcurrent protection.
  • Amperage Rating: 10A rated for precise circuit protection.
  • Interrupt Rating: 10 kA at 500 V DC and 6 kA at 480Y/277 V AC for high fault-current withstand.
  • Voltage Rating: Rated for 500 V DC and 480Y/277 V AC, supporting flexible AC and DC use in a single model line.
  • Dual AC/DC Application: Approved and compliant with major international and local standards for mixed-current environments.
  • Accessory Compatibility: Works with all current ABB System pro M compact® accessories for simplified planning and installation.
  • Trip Type: K-curve trip characteristic suited for circuits with higher inrush currents.

Certifications & Compliance

  • CSA 22.2 No. 235
  • IEC/EN 60947-2
  • UL 1077

Technical Specifications

  • Trip Type: K
  • Number Of Poles: 2
  • Amperage Rating: 10
  • Interrupt Rating: (500 V DC) 10 kA / (480Y / 277 V AC) 6 kA
  • Voltage Rating: (500 V DC) / (480Y / 277 V AC)
  • Standard: CSA 22.2 No. 235 / IEC/EN 60947-2 / UL 1077

Typical Applications

  • Commercial and Industrial Panelboard Protection
  • Mixed AC and DC Distribution Systems
  • Solar and Battery-Backed Power Circuits
  • Control Panel and Machinery Circuit Protection
  • Renovation and New Construction Electrical Systems

Why ABB?

ABB's System pro M compact® line is built to meet major international and local standards, giving the S200MUC a wide approval base and dependable performance across its entire model range. With high inbuilt short-circuit breaking capacity and true AC/DC flexibility, this MCB is engineered for code-compliant performance in demanding professional electrical installations.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Circuit Breaker
Amperage Rating:
10A
Voltage Rating:
500V DC / 480Y/277V AC
Configuration:
2-Pole, K-Curve
Standards:
CSA 22.2 No. 235, IEC/EN 60947-2, UL 1077
Listing:
UL Listed
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers

ABB S202MUC-K10 – Frequently Asked Questions

1) Can the ABB S202MUC-K10 breaker be used on a DC circuit, like a solar or battery system?
Yes. The S200MUC line is built for both AC and DC service. The 2-pole K-curve 10A version is rated 500V DC with a 10 kA breaking capacity, and 480Y/277V AC with 6 kA. That dual rating is why it shows up in solar arrays, battery-backed circuits, and mixed AC/DC distribution rather than an AC-only MCB.
2) What does the K trip curve mean on this ABB MCB, and when should I pick it over a C curve?
K curve trips later on inrush than a standard curve, so it suits circuits with high starting surges: motors, transformers, and switch-mode supplies that would nuisance-trip a faster characteristic. The S202MUC-K10 is a 2-pole K-curve 10A device. If your load is general lighting or receptacles with no inrush to speak of, a C curve breaker such as the Square D Multi9 C60 1-pole C-curve MCB is the more usual choice.
3) Is 6 kA enough interrupting capacity for my 480Y/277V panel?
The S202MUC-K10 holds 6 kA at 480Y/277V AC and 10 kA at 500V DC. Compare that against the available fault current at the point of installation, taken from your short circuit study or the utility figure. If the calculated fault current at that point exceeds 6 kA on the AC side, this device is not the right selection there and you need a higher AIC breaker like the Square D PowerPacT Q I-Line.
4) Can I use a Square D Multi9 C60 in place of the ABB S202MUC-K10 on a DC circuit?
No. The ABB S200MUC 2-pole 10A is rated 500V DC / 480Y/277V AC and is the model line intended for mixed AC and DC service. The Square D Multi9 C60 offered as a 1-pole C-curve device is described for 120V AC, so it is not the part to carry a DC circuit or a two-pole AC load. Stay with the S200MUC where DC is present.
5) Will ABB System pro M compact auxiliary contacts and shunt trips fit the S200MUC?
Yes. The S200MUC is part of the System pro M compact range and works with all current accessories in that line, so auxiliary contacts, signal contacts, and other clip-on modules you already stock for pro M compact carry over. That keeps panel planning consistent if the rest of the din rail is ABB.
6) I need 10 amps of protection on a two-wire DC circuit. Does the 2-pole version break both legs?
A 2-pole device opens both conductors together on a trip, which is what DC circuits generally require since neither leg is a grounded neutral in most battery and PV layouts. The S202MUC-K10 is the 2-pole, 10A, K-curve configuration of the S200MUC family.
7) What is the exact part number to order for the ABB 2-pole 10A K-curve AC/DC breaker?
Order ABB S202MUC-K10. Reading the code: S202 is the 2-pole S200MUC frame, UC denotes the universal AC/DC construction, and K10 is the K trip curve at 10 amps.
8) Does the ABB S202MUC-K10 meet IEC standards for equipment we export?
It carries IEC/EN 60947-2 alongside CSA 22.2 No. 235 and UL 1077, so the same part number covers North American and IEC documentation on exported machinery. That single approval base is the main reason OEMs standardize on the S200MUC across build variants.
9) The ABB S202MUC-K10 is a K curve. What if my load does not have high inrush?
The K trip characteristic on the ABB S200MUC is chosen for circuits with higher inrush currents, such as motors and transformer-fed control loads. For a resistive or general lighting circuit where inrush is not a factor, a C-curve device such as the Square D Multi9 C60 1-pole C-curve breaker is the more typical selection, provided the circuit is 120V AC single pole.
10) What should I use instead of the ABB S202MUC-K10 for a molded-case feeder rather than a DIN-rail control circuit?
The ABB S200MUC is a miniature circuit breaker sized for panelboard, control panel and machinery circuit protection at 10A. For a molded-case feeder application, the Square D PowerPacT B thermal magnetic circuit breaker is the molded-case device, and the Square D PowerPacT Q is the I-line mounted version for I-line panelboards. Neither mounts the same way as the S200MUC, so the enclosure and mounting have to be planned for the frame you choose.
11) Difference between the Square D PowerPacT B and PowerPacT Q when neither is an ABB S200MUC replacement?
The PowerPacT B is a thermal magnetic molded-case circuit breaker, while the PowerPacT Q is the I-Line style breaker that plugs into an I-Line panelboard bus. The ABB S200MUC 2-pole K-curve 10A is a different class of device entirely, a miniature circuit breaker built to UL 1077, CSA 22.2 No. 235 and IEC/EN 60947-2 that pairs with System pro M compact accessories. Choose by the panel and mounting you already have.
How fast can I get the ABB S202MUC-K10 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 ABB S202MUC-K10 come with a warranty?
Absolutely. The ABB S202MUC-K10 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 ABB S202MUC-K10?
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
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