MDL3400L - 400 Amp Circuit Breaker
- 400 Amp
- 25k @ 600VAC; 50k @ 480VAC; 65k @ 240VAC
- 3 Pole
Purchase Options: New In Box
MDL3400L - 400 Amp Circuit Breaker Description
MDL3400L - 400 Amp Circuit Breaker
Upgrade your electrical systems with the Eaton MDL3400L, a high‑capacity molded case circuit breaker built for performance and trustworthiness. Whether you're in a busy industrial setting or managing a large commercial installation, this breaker delivers dependable protection and lasting durability—precisely what you need to keep operations running smoothly.
Key Features and Benefits
- High-Load Handling (400 A): Designed to manage substantial currents, this breaker is ideal for demanding setups—no sweating overloaded circuits.
- Wide Voltage Application: Works seamlessly with both 600 Vac and 250 Vdc systems, making it highly adaptable across installations.
- Exceptional Fault Response: With a 65 kAIC interrupt rating at 240 Vac and 50 kAIC at 480 Vac, it responds swiftly in fault conditions to help prevent damage.
- Built To Last: Crafted from solid materials, it’s made for consistent daily use without compromise in harsh environments.
- Safe and Reliable: Engineered with precise line and load lug terminals and fixed thermal/magnetic trip mechanisms for predictable and secure operation.
Technical Specifications
- Frame Type: MDL
- Trip Mechanism: Fixed Thermal, Fixed Magnetic
- Poles: 3
- Amperage: 400 A
- Voltage Rating: 600 Vac | 250 Vdc
-
Interrupting Capacity:
- 65 kAIC at 240 Vac
- 50 kAIC at 480 Vac
- Frequency: 50/60 Hz
-
Dimensions:
- Length: 22.86 cm
- Width: 12.7 cm
- Height: 12.7 cm
- Weight: ~1.31 kg
- Special Features: Line and Load Lug Terminals for straightforward wiring
Material Compliance and Certifications
- UL Listed: Meets strict safety and performance standards, giving you peace of mind on compliance.
- Eaton Selling Policy 25‑000: Backed by Eaton’s warranty, ensuring you’re covered for reliability and customer satisfaction.
Suitability
- Commercial Buildings: Perfect for safeguarding extensive electrical systems in offices or retail spaces.
- Industrial Facilities: Handles heavy-duty power demands without fail, helping keep machinery and operations safe.
- Power Distribution Networks: Delivers consistent, reliable protection in complex distribution panels.
- Motor Protection: Prevents overloads and short circuits—ideal for keeping your equipment running without surprises.
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. All trademarks and registered trademarks are the property of their respective owners.
Specifications
- Width:8.25
- Height:16.0
- Depth:4.06
- Poles:3
- Amperes:400
- A.I.C. Rating & Volts:25k @ 600VAC; 50k @ 480VAC; 65k @ 240VAC
- Type:MDL
- Approx Dimensions:8.25"W x 16.00"H x 4.06"D
- Additional Notes:Thermal-magnetic circuit breaker with interchangeable trip unit. 40°C rated. HACR rated. This item includes line and load terminals.
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).