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Circuit Breaker

Square D | RJA36120CU44A | Circuit Breaker | 1200A | 600V

Amperes 1200
Voltage 600
Product Type Circuit Breaker
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Manufacturer :Square D
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $112,437.00
Sale price $112,437.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
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FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Allen-Bradley 1766-L32BXBA - Micrologix Controller 1766L32Bxba - Micrologix Controller 1766L32Bxba

Square D | RJA36120CU44A | Circuit Breaker | 1200A | 600V

Regular price $112,437.00
Sale price $112,437.00 Regular price
Unit price
Product description
Shipping

Meet the Square D RJA36120CU44A circuit breaker — a precise, genuine protection solution designed for demanding electrical systems. With a rated current of 1200A and a voltage rating of 600V, this device delivers dependable overcurrent protection for large-scale panels and feeders, helping prevent equipment damage and downtime.

  • Exact compatibility: Part number RJA36120CU44A is your best reference for fit in compatible Square D panels and assemblies.
  • High-capacity protection: 1200A protection supports substantial load profiles typical in industrial environments.
  • Voltage readiness: 600V rating makes it suitable for commercial and industrial distribution circuits requiring higher-voltage protection.
  • Versatile use: Ideal for maintenance, retrofit, and replacement projects where specs must precisely match existing equipment.
  • Reliability you can count on: Genuine Square D construction ensures consistent trip performance and long service life in challenging conditions.

How to use and what to expect:

  • Before ordering, confirm fit and ratings against your panel or switchgear documentation. The part number is the most reliable reference for compatibility.
  • Plan for replacement during scheduled maintenance to minimize downtime. This breaker is designed to drop in where the panel supports the RJA36120CU44A family and associated frame type.
  • Installation should be performed by a qualified electrician following applicable electrical codes and safety practices.

Who should consider this part?

  • Facilities managers and electrical contractors maintaining or upgrading large commercial or industrial electrical rooms.
  • Operations teams seeking to standardize spare parts with a single, trusted model to reduce ordering confusion.
  • Retrofit projects where ongoing protection relies on Square D equipment and precise slot compatibility is required.

Compared to generic replacements, the RJA36120CU44A offers:

  • Assured compatibility with Square D panels that support this exact part number.
  • Predictable electrical performance backed by Square D engineering standards.
  • Streamlined procurement—ensuring the protective device matches existing equipment to avoid misfit.

Technical snapshot

  • Amperage: 1200A
  • Voltage: 600V
  • Part number: RJA36120CU44A
  • Brand: Square D

Contact sales@ampstate.com

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

Verified

Professional-grade feel. No issues reported during commissioning.

Controls · Commissioning

Verified

Arrived in good condition and helped keep our project on schedule.

Project team · Contractor

Verified

Exactly what most contractors expect from an industrial supplier.

Electrical · Commercial

Fast industrial sourcing support

Need help?

  • Request a quote
  • Need a BOM priced for your project
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  • Need an equivalent or replacement
  • Send your part list and get a fast reply

Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

Email for a quote Typical reply: same business day