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Eaton Cutler-Hammer Series C Circuit Breakers LD3400

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LD3400

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The LD3400 is a molded case circuit breaker from Eaton Cutler-Hammer's Series C. This unit is rated for a maximum current of 400 A and operates at voltage levels up to 600 Vac and 250 Vdc, suitable for various industrial applications.

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Technical specifications for LD3400

ManufacturerEaton Cutler-Hammer
Product TypeMolded Case Circuit Breaker
Product LineSeries C Circuit Breakers
Part NumberLD3400
Weight20.06 lbs (9.10 kg)
UPC786679013038
Trip TypeT186
FunctionFixed thermal, Fixed magnetic trip
FrameL-Frame
PolesThree poles
Current Rating400 A
Voltage Rating600 Vac, 250 Vdc
Interrupting Capacity35 kAIC at 480 Vac, 65 kAIC at 240 Vac
Frequency Rating50/60 Hz
TerminalsLine and load
Terminal MaterialAluminum
MountingBolt-on / panel mount
Operating Temperature40 °C
CertificationsUL 489

The LD3400 model from Eaton Cutler-Hammer represents a durable molded case circuit breaker suited for reliable electrical protection. With its L-frame configuration and a current rating of 400 amps, this circuit breaker is capable of managing substantial electrical loads without compromising safety. It operates effectively at a voltage rating of 600 Vac or 250 Vdc, making it suitable for a variety of applications in commercial and industrial environments.

The circuit breaker features a trip type designated as T186, which combines both fixed thermal and fixed magnetic trip functions to ensure prompt disconnection during overload or short-circuit conditions. This feature sets it apart in terms of reliability and response time. Additionally, the LD3400 has an impressive interrupting capacity of 35 kAIC at 480 Vac and 65 kAIC at 240 Vac, which allows it to protect against high fault currents effectively.

Designed for easy installation, the device supports bolt-on or panel mount configurations and possesses aluminum terminals intended for both line and load connections. The operating temperature for the LD3400 is rated up to 40 °C, accommodating a range of environmental conditions. Furthermore, it adheres to UL 489 certification standards, ensuring compliance with industry safety regulations.