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Why SB front-connected switchboards?

Siemens SB front-connected switchboards deliver rugged, modular power distribution rated 400A–6000A. Front-only access streamlines layouts and lowers installation effort while UL 891 and NEMA PB‑2 design ensures reliable performance in demanding facilities.

Portfolio:

  • SB1: limited-space applications, up to 2000A
  • SB2: added capacity and options, up to 4000A
  • SB3: custom configurations, up to 6000A

Key benefits

Optimize footprint

Mount directly against a wall with all terminations accessible from the front, eliminating rear clearance for tight electrical rooms.

Accelerate installation

Modular sections and factory‑integrated options simplify layouts, reduce wiring, and cut install time and cost across new builds and retrofits.

Scale power safely

Cover 400A–6000A with UL 891 and NEMA PB‑2 compliance, optional Type 3R enclosures, and bus bracing up to 200kA for high‑fault environments

Featured capabilities