R3840 - Duplex 40/40 Circuit Breaker
- 40 Amp
- 10k @ 120VAC
- Duplex Pole
Purchase Options: New Aftermarket Replacement
R3840 - Duplex 40/40 Circuit Breaker Description
R3840 - Duplex 40/40 Circuit Breaker
The R3840 duplex circuit breaker is a practical solution for tight electrical panels where space is limited. Designed to handle two 40-amp circuits in one unit, it offers reliable protection against overloads and short circuits. With a 10,000 AIC interrupting capacity and a plug-on style, it’s built for fast installs and solid performance in both residential and light commercial settings. Whether you're upgrading or replacing, it delivers exactly what you need without any unnecessary bulk.
Key Features and Benefits
- Two Circuits in One: Duplex design fits two 40A breakers in a single slot, saving panel space.
- Thermal-Magnetic Trip: Offers both overload and short-circuit protection.
- Easy to Install: Plug-on setup cuts down time and hassle.
- Reliable Operation: Built to perform under everyday conditions.
Technical Specifications
-
Part Number: R3840
-
Amperage: 40A
-
Voltage: 120VAC
-
Type: Duplex
-
Interrupting Rating: 10,000 AIC
-
Dimensions:
- Width: 0.75 inches
- Length: 4.81 inches
- Depth: 2.50 inches
-
Weight: 1.75 lbs
-
Frame: R38
Material Compliance and Certifications
- Made from industry-standard materials. Tested to meet UL safety requirements.
Where It Works Best
- Ideal for residential panels, remodels, and light commercial setups where space is tight but safety is key. Use it when you need dependable protection without using up extra panel space.
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.
Specifications
- Width:0.75
- Height:4.81
- Depth:2.5
- Poles:Duplex
- Amperes:40
- A.I.C. Rating & Volts:10k @ 120VAC
- Type:R38
- 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 R38-40.
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE shipping on breaker orders over $100 and all other items with orders over $500.
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).