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Low-voltage switchgear

Arc-resistant Magnum DS low-voltage switchgear (ArcGard)

Arc-resistant switchgear is designed to safely contain and redirect arc flash energy away from the operator. Eaton's ArcGard Arc-resistant Magnum DS switchgear has been tested in all three compartments for a full 0.5 seconds (30 cycles), passing the ANSI/IEEE C37.20.7, Type 2B test guide at 100 kA, 508V and 85 kA, 635V, including an industry-exclusive Type 2B rating for the secondary door above the breakers.

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VOLTAGE CLASS
Up to 600 V
CONTINUOUS CURRENT
Up to 6000 A
SHORT-CIRCUIT TOLERANCE
Up to 100 kAIC

Core features

  • Third party tested to IEEE C37.20.7 test guide for arc-resistant switchgear
  • Draw-out low voltage power circuit breakers while maintaining Type 2B rating
  • Engineered-to-order configurations
  • UL 1558, rear access cable compartment
  • Short circuit withstand rating up to 85kAIC @ 635Vac and up to 100kAIC @ 508Vac
  • 30 cycle (0.5 second) short time withstand rating
  • Up to 10,000A continuous current –horizontal main bus
  • Up to 5,000A continuous current – vertical riser bus
  • Plenum & direct venting available to direct arc gasses to top of the enclosure
  • NEMA 1 enclosure with either top or bottom cable or bus duct entry 

View design guide (layouts, technical data and application information)

Download guide spec (26 23 00 11)

Learn more about power system design basics

Image gallery

View images of Arc-resistant Magnum DS low-voltage switchgear

Arc-resistant Magnum DS breaker cell
Arc-resistant Magnum DS low voltage switchgear
Arc-resistant Magnum DS low voltage switchgear
Type 2B secondary compartment for arc-resistant Magnum DS breaker cell
Arc-resistant Magnum DS low voltage switchgear
Circuit breaker bellows on arc-resistant Magnum DS low voltage switchgear
Arcflash Reduction Maintenance System on arc-resistant Magnum DS low voltage switchgear

Certified to enhance safety.

ANSI Type 2B is certified arc-resistant around the entire perimeter of the equipment, even when the low voltage instrument compartment door and the secondary door above the breaker door are open. Type 2B rating offers superior protection against arcs in breaker, bus or cable compartments with no increase in footprint over Magnum DS switchgear.
Specifications

View design guide (layouts, technical data and application information)

Download guide spec (26 23 00 11)

Learn more about power system design basics

Ratings

VOLTAGE
 Up to 600 V
CONTINUOUS MAIN BUS CURRENT 1,600 A to 10,000 A
SHORT-CIRCUIT TOLERANCE Up to 100,000 A
CIRCUIT BREAKER AMPS Up to 6,000 A

Standards

ANSI/IEEE C37.20.1, C37.51, C37.20.7
UL
 1558, 1066
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 Rear access
INSULATING MEDIUM Air
ENCLOSURE TYPE NEMA 1 indoor
INDOOR SECTION DIMENSIONS 22-44” w x 72-90” d x 96” h

Devices

OVERCURRENT PROTECTION Power circuit breaker, UL 1066
DEVICE MOUNTING Drawout
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