MDL3450 - 450 Amp Circuit Breaker

MDL3450 - 450 Amp Circuit Breaker

The Eaton MDL3450 delivers high-performance circuit protection in a powerful three-pole, 450 Amp package. Designed for both industrial and commercial environments, this reliable breaker supports up to 600 Vac and 250 Vdc, giving you broad voltage compatibility. Its fixed thermal‑magnetic trip mechanism ensures dependable response to overloads and short circuits. Plus, with interrupting capacities of 65 kA at 240 Vac and 50 kA at 480 Vac, it’s engineered to handle serious fault currents without blinking an eye—so your systems stay safe and uptime stays high.

Key Features and Benefits

• High Fault-Current Handling – Rated at 65 kAIC (240 Vac) and 50 kAIC (480 Vac), this breaker tackles fault conditions head-on, improving workplace safety and minimizing downtime.
• Fixed Thermal and Magnetic Trip – No surprises here—consistent tripping accuracy means protection you can count on.
• Wide Voltage Range – Compatible with both 600 Vac and 250 Vdc systems, offering flexibility for diverse installation scenarios.
• Three-Pole Design – Handy for multi-phase systems, streamlining your wiring and deployment.
• UL Listed Safety – Built to meet rigorous UL standards for safety and performance—ideal for installations that demand compliance.
• Eaton’s Warranty Backing – Enjoy peace of mind with Eaton’s promise of a one‑year warranty from installation or eighteen months from shipment (whichever is sooner).

Technical Specifications

• Catalog Number: MDL3450
• Series: C
• Frame Type: MDL
• Amperage Rating: 450 A
• Voltage Rating: 600 Vac, 250 Vdc
• Trip Type: Fixed Thermal, Fixed Magnetic
• Poles: Three
• Interrupting Capacity:
  • 65 kAIC @ 240 Vac
  • 50 kAIC @ 480 Vac
• Frequency Rating: 50/60 Hz

Material Compliance and Certifications

• UL Listing: The MDL3450 carries UL Listing, confirming it adheres to established safety and performance benchmarks. Eaton’s strict manufacturing standards mean consistent quality and dependable operation time after time.

Suitability

• This circuit breaker shines in high-demand electrical settings—think commercial buildings, manufacturing plants, and other mission-critical sites where system protection is non-negotiable. When you need a breaker that reliably handles big loads and keeps your operations up and running, the MDL3450 is the go-to solution for contractors, facility managers, and design professionals alike.