RC3840 - 40Amp Circuit Breaker
- 40 Amp
- 10k @ 120/240VAC
- 2 Pole
Purchase Options: New Aftermarket Replacement
RC3840 - 40Amp Circuit Breaker Description
RC3840 - 40Amp Circuit Breaker
Keep your existing electrical system operating with this replacement for the RC3840 circuit breaker. Designed as a form, fit, and functional replacement for the original RC38-40, this 2-pole, 40-amp thermal-magnetic circuit breaker is manufactured to fit the existing mounting location without requiring modifications to the panel. Its space-saving plug-on design makes it well suited for maintaining compatible legacy electrical distribution systems while delivering dependable overcurrent and short-circuit protection. Built to last, this replacement breaker is rated for 120/240VAC applications with a 10kA interrupting capacity (A.I.C.), helping protect branch circuits from overloads and short circuits in residential and light commercial installations where the original RC38-40 was used. Developed with compatibility in mind, it offers an effective solution for restoring service while preserving the original panel configuration.
Key Features and Benefits
- Form, Fit, and Functional Replacement: For the original RC38-40 circuit breaker.
- 40 Amp, 2-Pole Configuration: For 120/240VAC branch circuit protection.
- Space-Saving Plug-On Design: Fits the existing breaker location.
- Thermal-Magnetic Trip Mechanism: Helps protect against overloads and short circuits.
- 10kA A.I.C. Interrupting Rating: At 120/240VAC.
- Compatible Installation: Manufactured for compatibility with existing installations that originally used the RC38-40.
- Built to Last: For dependable operation in compatible electrical systems.
Technical Specifications
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Part Number: RC3840
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Replacement For: RC38-40
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Type: RC38
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Poles: 2
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Current Rating: 40 Amps
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Voltage Rating: 120/240VAC
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Interrupt Rating (A.I.C.): 10kA @ 120/240VAC
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Trip Unit: Thermal-Magnetic
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Mounting Style: Space-Saving Plug-On
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Dimensions:
- Height: 4.81 in.
- Width: 0.75 in.
- Depth: 2.50 in.
Material Compliance and Certifications
- Industry Standards: Manufactured to meet applicable industry standards for form, fit, and functional replacement applications.
- Panel Compatibility: Designed for use in compatible electrical panels that originally accepted the RC38-40 circuit breaker.
- Installation Notice: Always verify panel compatibility and applicable local electrical codes before installation.
Where It Works Best
- This replacement circuit breaker is well suited for maintaining compatible legacy load centers and panelboards that were originally equipped with the RC38-40. It is commonly used in residential and light commercial electrical systems requiring a 2-pole, 40-amp breaker for 120/240VAC branch circuits. Its form, fit, and functional compatibility allows existing equipment to remain in service without changing the original panel layout, making it an ideal choice for repairs, maintenance, and replacement projects.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.
Specifications
- Width:0.75
- Height:4.81
- Depth:2.5
- Poles:2
- Amperes:40
- A.I.C. Rating & Volts:10k @ 120/240VAC
- Type:RC38
- Approx Dimensions:0.75"W x 4.81"L x 2.50"D
- Additional Notes:Space-Saving' Plug-On, Thermal-Magnetic Circuit Breaker. *Note: As this item is no longer manufactured, in it's place, we are offering a New after-market replacement circuit breaker specially designed to replace and fit into the existing location of the RC38-40.
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).