Cut Sheet

SEQUESTR PREFERREDCUTOUT DISCONNECTS SEQUESTR ExTERnal DiSconnEcTS
nVent.com/HOFFMANSUBJECT TO CHANGE WITHOUT NOTICEDISCONNECT1
Spec-01077 D
Spec-01077
STAINLESS STEEL SEQUESTR EXTERNAL DISCONNECT PACKAGE, TYPE 4X
INDUSTRY STANDARDS
UL 508A Listed 508; Type 3R, 4, 4X, 12; File No. E61997
cUL Listed per CSA C22.2 No. 94; Type 3R, 4, 4X, 12; File No.
E61997
NEMA/EEMAC Type 3R, Type 4, 4X, 12
CSA File No. 42186: Type 4, 4X, 12
IEC 60529, IP66
Meets NEMA Type 3RX requirements
APPLICATION
The Stainless Steel, SEQUESTR, External Disconnect Enclosure
Package helps mitigate arc flash occurrences when working on
interior components by isolating incoming power from the main
enclosure. Manufactured from 304 stainless steel, it provides
protection from noncorrosive or mildly corrosive elements in both
indoor and outdoor environments. Shipped as one unit for new
installations, the disconnect switch and fuse block/circuit breaker
are mounted in the external enclosure, with terminal connections
to bring power to the main enclosure. The package includes a main
enclosure and a SEQUESTR enclosure. The SEQUESTR enclosure
can be ordered separately to retrofit in existing A28S4 main
enclosure bulletin.
SPECIFICATIONS
• A28S4 main enclosure, 12 gauge Type 304 stainless steel
• A70DS SEQUESTR external disconnect enclosure, 14 gauge Type
304 stainless steel
• Seams continuously welded and ground smooth
•
Interlocks doors of main control cabinet when disconnect switch
is powered ON
• Mechanical interlock on main control enclosure activated by
master door, preventing slave door from being opened first
• Provision for pass-through power into the main enclosure
• Preferred Disconnect cutout
• Quarter-turn, slotted latches on SEQUESTR Enclosure
• Heavy-duty 3-point latching mechanism operated by Type 316L
stainless steel POWERGLIDE padlocking handle on all doors
• Heavy-duty continuous hinges
• Grounding studs on body
• Bonding provision on door
• Conductive back panel included in SEQUESTR External
Disconnect Enclosure
• Optional back panel for main control cabinet for maximum
ordering flexibility
•
SEQUESTR External Disconnect Enclosure is shipped unattached
for easy disconnect installation
FINISH
Stainless steel enclosures are unpainted. Sides and body have
smooth #4 brushed finish. Optional white mild steel panels or
conductive panels.
ACCESSORIES
Electric Heater
Compact Cooling Fans
Floor Stand Kit
PANELITE Enclosure Lights
Steel, Stainless Steel and Non-Metallic Window Kits
IR Windows
Door Stop Kit
External Data Pockets, Type 4/4X/12
INTERSAFE Data Interface Ports, Type 4/4X/12
MODIFICATION AND CUSTOMIZATION
Hoffman excels at modifying and customizing products to
your specifications. Contact your local Hoffman sales office or
distributor for complete information.
Bulletin: A28SX, A70D