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Low-voltage switchgear

Front Access Magnum DS low-voltage switchgear

Front access low-voltage switchgear combines the robustness of UL 1558 low voltage switchgear with the flexibility of UL 891 switchboard design. The front-accessible switchgear offering allows mounting against a wall, corner or in other tight locations where a standard rear-accessible switchgear line-up would not normally fit. Front access switchgear is available with the same Magnum DS and NRX circuit breakers as rear-accessible switchgear. 

VOLTAGE CLASS
Up to 600 V
CONTINUOUS CURRENT
Up to 6000 A
SHORT-CIRCUIT TOLERANCE
Up to 200 kAIC

Core features

  • Front-accessible cable compartment 18, 22, 30 or 44 inches wide
  • Drawout LV power circuit breakers with 100% rated, fully selective protection and integral microprocessor-based breaker tripping systems
  • Engineered-to-order configurations available to accommodate a wide range of applications
  • Complies with UL® 1558 and UL® 891 safety standards
  • Standard 40-inch switchgear depth
  • Up to 4-high breaker arrangement
  • Silver plated copper bus standard, tin plated optional
  • NEMA® 1 indoor and NEMA® 3R outdoor aisle and aisleless enclosures available
Specifications

Ratings

VOLTAGE
Up to 600 V
CONTINUOUS MAIN BUS CURRENT 1,600 A to 6,000 A
SHORT-CIRCUIT TOLERANCE Up to 200,000 A
SHORT-TIME TOLERANCE 30 cycles
CIRCUIT BREAKER AMPS Up to 6,000 A

Standards

ANSI/IEEE C37.20.1, C37.51
UL
C22.2 No 31–10
CSA
C22.2 No 31–10
OTHER CERTIFICATION ABS
SEISMIC QUALIFICATION

IBC, CBC, UBC Zone 4

Front & rear access

4-pole

With type MDS, MDSL, MDSX, MDSN or NRX circuit breakers

 

Enclosure

CONSTRUCTION
Metal-enclosed
POWER TERMINATIONS Front access
INSULATING MEDIUM Air
ENCLOSURE TYPE NEMA 1 indoor, NEMA 3R outdoor
INDOOR SECTION DIMENSIONS 18-44” w x 40” d x 96” h

Devices

OVERCURRENT PROTECTION Power circuit breaker, UL 1066
DEVICE MOUNTING Drawout
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