Siemens Q2125B Miniature Circuit Breakers (MCBs)

120/240 VAC, 125 A, 10 kA, 2-Pole, 1 AWG Copper/2/0 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QPP Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
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MPN: Q2125B
UPC: 783643148703
Weight: 0.00 LBS
Minimum Purchase: 1 unit
Disclaimer: Critical Surplus is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by Critical Surplus are covered under Critical Surplus' warranty and not the manufacturer warranty.

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Description

Genuine Q2125B surplus parts. Sourced from verified OEM and distributor channels, fully inspected for authentic quality and dependability.

Critical Surplus specializes in responsibly sourced OEM surplus parts, giving contractors and facilities access to hard-to-find parts without compromising safety or performance. Every item we stock is from verified supply-chain partners — never counterfeit, never untested — and each part is inspected, cataloged, and stored in a controlled environment to preserve its integrity. With transparent condition grading and fast fulfillment, you get dependable equipment very quickly and at a fraction of regular distributor pricing.

Key Features & Benefits

  • Trusted OEM quality: Q2125B
  • Compatible with: Loadcenter
  • Standards & Approvals: UL 489, CSA C22.2
  • Surplus value: Authentic OEM surplus at lower cost.
  • Ready to ship: In-Stock and ideal for replacements and emergency service calls.

Technical Specifications

Manufacturer
Catalog Number Q2125B
Type Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
Country of Origin MEX
Interrupting Rating 10 kA
Used On Loadcenter
Number of Poles 2
Voltage Rating 120/240 VAC at 50/60 Hz
Size 4 Inch W x 4.54 Inch H
Terminal Type Load Lug
Current Rating 125 A
Wire Size 1 AWG (Copper), 2/0 AWG (Aluminum)
Mounting Plug-On
Data Sheet SiemensAG_06990_1_DATA.pdf
Catalog SiemensAG_00562_1_45-1_47_CAT.pdf
Approval UL 489, CSA C22.2

Condition & Warranty

This Q2125B is offered as unused surplus sourced through authorized distributor and OEM channels. Units may arrive in non-retail packaging and may show minor storage-related cosmetic handling. 90-day limited replacement warranty included.

Shipping & Handling

Most orders ship within 1 business day with immediate tracking updates. Expedited shipping and freight support available. Choose Next Day Air at checkout or contact us for more information.

Why Buy from Critical Surplus?

  • Circular economy model: Responsible surplus sourcing.
  • Industrial-grade inventory: OEM components only.
  • Technical support: Help with compatibility and spec verification.
  • Bulk options: Multi-unit and pallet pricing available.

Ready to Order?

Secure your Q2125B today — add to cart or contact us for bulk pricing.

Siemens Q2125B Miniature Circuit Breakers (MCBs)

Siemens Q2125B Miniature Circuit Breakers (MCBs)

$226.10

Siemens Q2125B Miniature Circuit Breakers (MCBs)

$226.10
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