Siemens LD63B400 400A 3-Pole 600V Sentron LD Frame Circuit Breaker

The Siemens LD63B400 is a 400-amp, 3-pole, 600V Sentron LD Frame molded case circuit breaker. Rated at 42kA interrupting capacity at 480V AC and 30kA at 600V. Features thermal-magnetic trip with LI protection. Bolt-on mounting for industrial panelboards and switchboards. 80% continuous current rated. UL 489 listed, CSA certified.

LD63B400 Specifications

SpecificationValue
Amperage400A
Poles3
Voltage600V AC / 250V DC
Interrupt Rating42kA @ 480V / 30kA @ 600V
Frame SizeLD Frame (400A)
Mounting TypeBolt-On
Trip TypeThermal Magnetic
Trip FunctionLI (Long-time, Instantaneous)
Phase3-Phase
StandardsUL 489, CSA C22.2 No. 5
Temperature Rating40°C

Key Features

  • 400A continuous rating at 40°C
  • 42kA interrupting capacity at 480V
  • 30kA interrupting capacity at 600V
  • Thermal-magnetic LI trip function
  • Bolt-on mounting for industrial panels
  • 80% continuous current rated

Applications

  • Industrial feeder circuit protection
  • Commercial main circuit protection
  • Motor feeder circuit protection
  • Switchboard main circuit protection

Replaces: LD63B400

Buy LD63B400 Circuit Breaker

Siemens Sentron LD Frame 400A 3-pole circuit breaker. In stock at AllBreakerSales.com. Call (877) 611-0034 for same-day pricing. Genuine OEM parts, ships from US warehouse.

Brand: Siemens | Series: Sentron LD Frame | Catalog Number: LD63B400

Related Circuit Breakers

LD63B250 - Siemens Sentron LD Frame | LD63B300 - Siemens Sentron LD Frame | LD63B350 - Siemens Sentron LD Frame

Home | All Circuit Breakers | Shop by Brand | All Siemens Breakers | Cross-Reference | Safety Switches | Blog | Resources | Locations | We Buy Breakers | Breaker Finder | Compare | About Us | Contact | Get a Quote