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BL Type 240V Panelboard Breakers

Circuit breakers provide a manual means of energizing and de-energizing a circuit. In addition, circuit breakers provide automatic over current protection of a circuit. A circuit breaker allows a circuit to be reactivated quickly after a short circuit or overload is cleared. Unlike fuses, which must be replaced when they open, a simple flip of the breaker’s operating handle restores the circuit.

All circuit breakers perform the following functions:

  • SENSE when an over current occurs

  • MEASURE the amount of over current

  • ACT by tripping quickly enough to prevent damage to itself and associated conductors

Features and Benefits

Siemens BL breakers provide easy bolt-on connections in Siemens panelboards. Siemens offers three AIC ratings for these breakers: BL @ 10K AIC, BLH @ 22K AIC, and HBL @ 65 K AIC.

There are 4 available constructions to choose from:

  • 1 Pole 120V

  • 2 Pole 120 / 240V

  • 2 Pole 240V

  • 3 Pole 240V


  • 400Hz Calibration - add suffix Y

  • Marine 50ºC Ambient Calibration - add suffix M

  • Fungus Proofing - add suffix F

Special Applications

■ HID Lighting - add suffix HID

15 - 30A 1 and 2-pole breakers for high-intensity discharge lamp loads having in-rush currents above the instantaneous trip setting of a standard breaker.

■ Tungsten Lighting - add suffix T

15 - 20A 1-pole breaker used for high wattage, tungsten-lamp loads having in-rush currents above the instantaneous trip setting of a standard breaker.

■ Molded Case Switch - add suffix S

100A 1-pole and 30, 60 and 125A 2-pole breakers for applications that do not require over current protection.

■ Switching Neutrals - add prefix BG

15 - 30A 2 and 3-pole breakers used where all conductors are required to be disconnected. Neutral pole of the circuit breaker does not connect to load center bus. One side is wired to neutral and the other side to the device.

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