Product Overview

SWITCHBOARD is an essential component in the power distribution system, engineered to safely receive power from the utility or transformer and distribute it to main distribution and feeder circuits. Designed for higher current, higher short-circuit ratings and main incoming / main distribution applications, the Low-switchboard series is UL 891 tested and approved, with main busbar up to 4000 A, short-circuit current rating up to 100 kA.

Applications

• Industrial complexes & plants
• Commercial & institutional buildings
• Data centers & critical facilities
• Utility service entrance

High Reliability & Safety

• UL 891 tested and approved
• Dead-front, isolated bus design
• Safe arc-blow pressure relief channel
• User safety considerations

Modularity & Scalability

• Modular sections L/S/I/G
• Easy to add feeder sections
• Flexible incoming / outgoing layout

Switchboard Specifications

LSB-1

• Bus System: Bolt-on type
• Main Breaker: 1600–2500 A
• Branch Breakers: 150–800 A
• Enclosure: NEMA Type 3R (Indoor & Outdoor), Rear and front accessible
• Std. Main Dimensions: W38" × H90" × D40"
• Std. Feeder Dimensions: W45" × H90" × D40"
• Breaker: UL 1066 and UL 489 Standard
• Switchboard: UL 891 Standard

LSB-1 switchboard specifications

Description	1600 AF	2000 AF	2500 AF
Rated Current (A) — Main Breaker	UAH-16E3-16	UAH-20E3-20	UAH-25E3-25
Rated Current (A) — Branch Breaker	UTS150 / UTS250 / UTS400 / UTS600 / UTS800
Short Circuit Current Rating (kA,rms)	Up to 480 V, up to 100 kA
Main Bus Type	Bolt-on
Enclosure Type	NEMA 3R (Indoor & Outdoor)
Std. Main Dimension — W	38in (965.2mm)
Std. Main Dimension — H	90in (2286mm)
Std. Main Dimension — D	40in (1016mm)
Std. Feeder Dimension — W	45in (1143mm)
Std. Feeder Dimension — H	90in (2286mm)
Std. Feeder Dimension — D	40in (1016mm)

LSB-2

• Bus System: Bolt-on type
• Main Breaker: 3200–4000 A
• Branch Breakers: 150–800 A
• Enclosure: NEMA Type 3R (Indoor & Outdoor), Rear and front accessible
• Std. Main Dimensions: W45" × H90" × D40"
• Std. Feeder Dimensions: W45" × H90" × D40"
• Breaker: UL 1066 and UL 489 Standard
• Switchboard: UL 891 Standard

LSB-2 switchboard specifications

Description	3200 AF	4000 AF
Rated Current (A) — Main Breaker	UAH-32G3-32	UAH-40G3-40
Rated Current (A) — Branch Breaker	UTS150 / UTS250 / UTS400 / UTS600 / UTS800
Short Circuit Current Rating (kA,rms)	Up to 480 V, up to 100 kA
Main Bus Type	Bolt-on
Enclosure Type	NEMA 3R (Indoor & Outdoor)
Std. Main Dimension — W	45in (1143mm)
Std. Main Dimension — H	90in (2286mm)
Std. Main Dimension — D	40in (1016mm)
Std. Feeder Dimension — W	45in (1143mm)
Std. Feeder Dimension — H	90in (2286mm)
Std. Feeder Dimension — D	40in (1016mm)