3-Pole Circuit Breaker
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3-Pole Circuit Breaker



Description:

A 3-pole circuit breaker is an electrical safety device that protects and controls circuits in three-phase electrical systems. It simultaneously protects three "hot" wires (phases) and is primarily used in industrial, commercial, and large-scale power distribution systems. These breakers interrupt high currents and protect against overloads, short circuits, and electrical faults.

Applications of 3-Pole Circuit Breakers:

Industrial Power Distribution: Protects three-phase power distribution networks, commonly found in factories, warehouses, and large industrial plants.
Motor Protection: Used to protect three-phase motors, ensuring safe operation by disconnecting power during overloads or faults.
Commercial Buildings: Protects HVAC systems, elevators, and other three-phase equipment in office buildings and shopping centers.
Renewable Energy Systems: Used in solar, wind, and other renewable energy setups to manage and protect three-phase circuits.
Utility Substations: Integral to power transmission and distribution networks, managing high-voltage three-phase systems.
Large Machinery: Protects industrial machinery that requires three-phase power, such as pumps, compressors, and CNC machines.
Data Centers: Ensures reliable power for three-phase UPS systems, servers, and cooling equipment.

  • Siemens B345H 3 Pole Low Voltage Bolt On Circuit Breaker 45 Amp 240 VAC 22 kA
  • Siemens B345HH 3 Pole Low Voltage Bolt On Circuit Breaker 45 Amp 240 VAC 65 kA
    $358.40
    $358.40
  • Siemens B360H 3 Pole Low Voltage Bolt On Circuit Breaker 60 Amp 240 VAC 22 kA
    $220.00
    $220.00
  • Siemens B350HH 3 Pole Low Voltage Bolt On Circuit Breaker 50 Amp 240 VAC 65 kA
    $358.40
    $358.40
  • Siemens B350H 3 Pole Low Voltage Bolt On Circuit Breaker 50 Amp 240 VAC 22 kA
    $220.00
    $220.00
  • Siemens B370HH 3 Pole Low Voltage Bolt On Circuit Breaker 70 Amp 240 VAC 65 kA
    $455.00
    $455.00
  • Siemens B380H 3 Pole Low Voltage Bolt On Circuit Breaker 80 Amp 240 VAC 22 kA
    $268.80
    $268.80
  • Siemens B370H 3 Pole Low Voltage Bolt On Circuit Breaker 70 Amp 240 VAC 22 kA
    $269.22
    $269.22
  • Siemens B360HH 3 Pole Low Voltage Bolt On Circuit Breaker 60 Amp 240 VAC 65 kA
    $358.40
    $358.40
  • Siemens B380HH 3 Pole Low Voltage Bolt On Circuit Breaker 80 Amp 240 VAC 65 kA
    $469.00
    $469.00
  • Siemens B390H 3 Pole Low Voltage Bolt On Circuit Breaker 90 Amp 240 VAC 22 kA
    $347.20
    $347.20
  • Siemens B390HH 3 Pole Low Voltage Bolt On Circuit Breaker 90 Amp 240 VAC 65 kA
  • Siemens Q335 Type QP 3 Pole 35 Amp 240 VAC 10 kA Plug In Circuit Breaker
    $87.60
    $87.60
  • Siemens Q330 Type QP 3 Pole 30 Amp 240 VAC 10 kA Plug In Circuit Breaker
    $87.60
    $87.60
  • Siemens Q325 Type QP 3 Pole 25 Amp 240 VAC 10 kA Plug In Circuit Breaker
    $87.60
    $87.60
  • Siemens Q320H Type QPH 3 Pole 20 Amp 240 VAC 22 kA Plug In Circuit Breaker
    $115.30
    $115.30

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