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.

B370H

This circuit breaker features a thermal-magnetic trip technology that provides overcurrent protection. It has a 22 kA interrupt rating at 240 V which ensures adequate safety during fault conditions. T

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B370H00S01

This circuit breaker supports 3-phase systems and features a significant interrupting capacity of 22 kA at 240 VAC. It is designed for panel mounting and includes trip functions for both long time and

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B390H

This circuit breaker incorporates three poles along with long time and instantaneous trip functions. Its interrupting capacity stands at 22 kAIC at 240 VAC, and it features a bolt-on connection type a

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BQ2B080H

This circuit breaker has two poles and employs thermal magnetic protection with long-time and instantaneous trip functions. It is designed for bolt-on mounting and utilizes a load side lug terminal co

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MBKJD3B

This mounting kit employs a strap mount style, suitable for panelboard interiors. Rated for 50/60 Hz frequency operation, it includes bolt-on bus connections for secure attachment. Manufactured from s

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RD63T160

Featuring three poles, this trip unit is designed with thermal magnetic protection, and it is part of the RD Frame type. It has an impressive interrupt rating of 50 KAIC at 480 V and 25 KAIC at 600 V,

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B2125H

Featuring two poles, the B2125H includes a high interrupting capacity rated at 22 kA for 240 volts AC applications. This breaker is compatible with a wire size range from 4 to 300 kcmil and offers ess

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B230H00S01

This breaker features a thermal magnetic trip range and provides an interrupt rating of up to 22 KAIC. The product is designed for panelboard bolt-on mounting and connection, with load-side lug termin

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B240H00S01

This circuit breaker is rated for 240 V and has a two-pole design. It offers thermal and magnetic trip unit types, making it suitable for various applications. The breaker provides a 22 kAIC interrupt

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B260H00S01

With 2 poles, this single-phase circuit breaker is rated for 60 Amperes. It has a max interrupting and short circuit rating of 22 kA. The B260H00S01 utilizes lug terminal connections and is designed f

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