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Siemens SpeedFax BQ3B070

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BQ3B070

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The Siemens BQ3B070 is a molded case circuit breaker designed for efficient electrical management. This series provides reliable protection in three-phase applications, rated at 70 Amperes with a voltage capacity of 240 Volts AC.

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Technical specifications for BQ3B070

ManufacturerSiemens
Product TypeMolded Case Circuit Breaker
Product LineSpeedFax
Part NumberBQ3B070
GTIN00 783643102644
Number of Poles3 Poles
Amperage Rating70 Amperes
Voltage Rating240 Volts AC
Interrupt Rating10 kA at 240 Volts AC
MountingBolt On
Trip UnitThermal Magnetic
Trip FunctionLong-time overload and instantaneous short circuit
Phase3 Phase
ConnectionLoad side lugs
Wire Size8-4 AWG
CertificationUL, CSA, HACR
Operating Temperature-10 to 60 degrees Celsius
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The Siemens BQ3B070 represents a durable molded case circuit breaker within the SpeedFax series, designed for robust performance in electrical systems. With a maximum current rating of 70 Amperes, it operates effectively at 240 Volts AC. Its construction incorporates three poles, ensuring stable operation across various load conditions.

This unit utilizes a thermal magnetic trip unit that combines the functions of long-time overload protection with instantaneous short-circuit interruption. Rated for an interrupting capacity of up to 10 kA at 240 Volts AC, the BQ3B070 provides enhanced safety and reliability in fault conditions. Installation is straightforward, utilizing a bolt-on mounting style that secures it firmly within an electrical panel.

The load-side lugs facilitate straightforward connection to wiring, accommodating wire sizes ranging from 8-4 AWG. The BQ3B070 is certified by UL and CSA, reflecting its adherence to stringent safety and performance standards. Operating efficiently within an ambient temperature range of -10 to 60 degrees Celsius, this circuit breaker is well-suited for a variety of industrial and commercial applications.