Siemens SpeedFax

The Siemens SpeedFax series is a series of panelboards and circuit breakers. This series includes both lighting and distribution panels. Some SpeedFax panels can be converted from top-feed to bottom-feed panels, or vice versa. Some support a wide range of fuses. The SpeedFax series also includes cables. The circuit breakers available in the SpeedFax series include branch circuit breakers that provide branch circuit protection. Other available circuit breakers include electronic circuit breakers with 1 pole or 2 poles. The SpeedFax series also includes spare parts, such as neutral kits, breaker mounting kits, and lug kits.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.

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Browse SpeedFax

Browse available units in our catalog of SpeedFax.

B120H00S01

This molded case circuit breaker features a toggle actuator for easy operation and is mounted using a bolt-on design. It has a thermal magnetic trip type for reliable protection against overloads and

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B2125HH

This circuit breaker can handle 2 AWG to 1/0 AWG wire sizes and features a thermal magnetic protection mechanism. It includes functions for long time and instantaneous trip responses and is suitable f

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B215H00S01

This two-pole circuit breaker utilizes a fixed trip unit with both long-time and instantaneous trip functions. With a design voltage of 240 V and an operating frequency of 60 Hz, it employs a bolt-on

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B22000S01

This model is designed for single-phase applications and provides a reliable trip mechanism with both shunt and thermal magnetic capabilities. It has an interrupt rating of 10 KA and works at a freque

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B220EG

This circuit breaker functions efficiently within a temperature range of 0°C to 40°C for both operation and storage. It can endure humidity levels up to 80% without condensation, and is rated for inst

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B25000S01

This B25000S01 model features a one-phase power configuration and offers long-time and instantaneous trip functions for enhanced safety. The interrupt rating at 240 V is 10 KAIC. It is designed with a

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B3100HH00S01

This molded case circuit breaker comprises three poles and employs a thermal magnetic trip type. Rated for a maximum current of 100 A, it can handle significant fault conditions with an interrupt rati

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B330H00S01

This circuit breaker is configured for three poles and is rated for use in three-phase systems. It has a fault interruption capacity of 22 kA, ensuring reliability in fault conditions. The thermal-mag

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B350H

With a mounting style designed for bolt-on installation, the B350H has three poles and is suitable for systems rated at 120/240V AC. It can accommodate copper wire sizes up to #6 AWG and aluminum wire

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B350HH

Designed for a three-phase setup, the B350HH is a bolt-on circuit breaker suitable for panelboarding applications. This device features thermal-magnetic trip technology and operates at both 50 and 60

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