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Siemens SpeedFax B345HH

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B345HH

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The Siemens B345HH is a molded case circuit breaker featuring a robust design for efficient electrical management. This model operates at a current rating of 45 Amperes and can handle a voltage of 240V AC in a three-phase system.

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Technical specifications for B345HH

ManufacturerSiemens
Product TypeMolded Case Circuit Breaker
Product LineSpeedFax
Part NumberB345HH
UPC783643306363
Output ConnectionLoad Side Lug
Minimum Conductor#8 AWG
Maximum Conductor#4 AL / #6 CU
Operational ControlToggle Handle
Rated Current45 A
Operating Voltage240V AC
Pole Configuration3-Pole
Electrical Phase3-Phase
Panel ConnectionBolt-On
Trip Unit StyleFixed
Short Circuit Capacity65 kA
Trip TechnologyThermal-Magnetic
Ambient ConditionUp to 40 °C

The B345HH from Siemens, belonging to the SpeedFax series, serves as a molded case circuit breaker engineered for high performance. This unit operates efficiently with a rated current capacity of 45 A and an operating voltage of 240V AC. Designed for a three-phase electrical system, it includes a 3-pole configuration to meet the demands of diverse applications.

The output connection features a load side lug, enabling reliable electrical connections. A toggle handle enables straightforward operational control, ensuring ease of use during operation. The trip unit is designed as a fixed style, enhancing the circuit breaker's reliability in fault conditions.

With an impressive short circuit capacity rated at 65 kA, this circuit breaker utilizes thermal-magnetic technology for optimal protection against overloads and shorts. It allows for various conductor sizes, handling a minimum of #8 AWG and up to a maximum of #4 aluminum or #6 copper. The panel connection is designed for bolt-on installation, facilitating secure and efficient setup in various panel configurations.

The Siemens B345HH is suitable for environments with ambient temperatures reaching up to 40 °C, making it compatible with a range of operational settings. Through its combination of durability and functionality, this molded case circuit breaker is suitable for both commercial and industrial applications.