Siemens CQD390 Molded Case Circuit Breaker
Siemens CQD390 Molded Case Circuit Breaker

Siemens CQD390 Molded Case Circuit Breaker

277/480 VAC 50/60 Hz, 90 A, 14 kA, 3-Pole, CQD Frame, Thermal and Fixed Magnetic Trip, Circuit Breaker
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MPN: CQD390
UPC: 783643277847
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 CQD390 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: CQD390
  • Compatible with:
  • Standards & Approvals:
  • 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 CQD390
Series CQD
Type Thermal and Fixed Magnetic Trip
Number of Poles 3 P
Country of Origin Mexico
Catalog SiemensAG_17163_5_31_CAT.pdf
Voltage Rating 277/480 VAC 50/60 Hertz
Current Rating 90 A
Interrupting Rating 14 kA
Size 3 Inch Width x 2.87 Inch Depth
Data Sheet SiemensAG_19259_1_DATA.pdf
Frame Type CQD
Maximum AC Voltage Rating 480 V

Condition & Warranty

This CQD390 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 CQD390 today — add to cart or contact us for bulk pricing.

Siemens CQD390 Molded Case Circuit Breaker

Siemens CQD390 Molded Case Circuit Breaker

$388.28

Siemens CQD390 Molded Case Circuit Breaker

$388.28
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