EGB34040 - 40 Amp Circuit Breaker
- 40 Amp
- 35k @ 277VAC; 65k @ 240VAC
- 3 Pole
Purchase Options: New In Box
EGB34040 - 40 Amp Circuit Breaker Description
EGB34040 - 40 Amp Circuit Breaker
When you need a 40 Amp, 3-pole circuit breaker that fits seamlessly into a compatible NF panelboard, the EGB34040 delivers the form, fit, and function needed to keep your existing electrical system operating as designed. Whether you're replacing a worn breaker during routine maintenance or restoring service after a failure, this bolt-on breaker is built to integrate with existing installations without requiring panel modifications.
Designed for 480Y/277 VAC three-phase systems, the EGB34040 is commonly found in commercial buildings, industrial facilities, and other applications using compatible NF panelboards. Its bolt-on mounting provides a secure installation, while interrupting ratings of up to 65kA at 240 VAC and 35kA at 480Y/277 VAC allow it to meet the protection requirements of many commercial electrical systems.
Key Features and Benefits
- 40 Amp continuous current rating
- 3-pole configuration for three-phase electrical systems
- Bolt-on mounting for secure installation in compatible NF panelboards
- Thermal-magnetic trip unit protects against overloads and short circuits
- Built-in trip indicator allows quick visual identification of a tripped breaker
- Rated for systems up to 480Y/277 VAC
- Interrupt ratings up to:
- 65kA @ 120/240 VAC
- 65kA @ 240 VAC
- 35kA @ 277 VAC
- 35kA @ 480Y/277 VAC
- HACR rated for HVAC applications
- UL Listed for HID lighting applications
- Designed for form, fit, and functional replacement in compatible legacy electrical systems
- Built for dependable, long-term service
Technical Specifications
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Catalog Number: EGB34040
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Rated Current: 40 Amps
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Number of Poles: 3
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Frame Type: E-Frame (EGB Series)
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Mounting Type: Bolt-On
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Maximum Operating Voltage: 480Y/277 VAC
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Trip Unit Technology: Thermal-Magnetic
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Trip Unit Rating: 1800A
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Holding Current: 630A
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Protection: Overload and Short-Circuit
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Interrupt Ratings:
- 65kA @ 120 VAC
- 65kA @ 120/240 VAC
- 65kA @ 240 VAC
- 35kA @ 277 VAC
- 35kA @ 480Y/277 VAC
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Electrical Connections: Aluminum lugs
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Compatible Wire Range:
- Aluminum: AWG 12–2/0
- Copper: AWG 14–2/0
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Tightening Torque:
- 34.5 lb-in (3.9 N·m) for AWG 14–10
- 49.6 lb-in (5.6 N·m) for AWG 8–2/0
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Operating Temperature: 40°C (104°F)
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Dimensions: 5.66" H × 2.94" W × 4.05" D
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Weight: Approximately 4 lbs
Material Compliance and Certifications
- cULus Listed
- UL Listed for High Intensity Discharge (HID) applications
- HACR Rated
- TAA Compliant
- Calibrated for operation in ambient temperatures up to 40°C (104°F)
Where It Works Best
- Commercial office buildings
- Industrial facilities
- Manufacturing plants
- Schools and universities
- Healthcare facilities
- HVAC equipment circuits
- HID lighting systems
- Three-phase power distribution panels
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Square D® is a registered trademark of Schneider Electric. Products sold are surplus, used, or refurbished and are NOT supplied by Schneider Electric or its affiliates.
Specifications
- Width:3.0
- Height:5.69
- Depth:3.44
- Poles:3
- Amperes:40
- A.I.C. Rating & Volts:35k @ 277VAC; 65k @ 240VAC
- Type:EGB
- Approx Dimensions:3.00"W x 5.69"L x 3.44"D
- Additional Notes:Thermal Magnetic, Bolt-on, Circuit Breaker for NF Panelboard. Includes Load-Side Lugs
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.
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Same Day Shipping
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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).