Standards

• UL 508A Type 3R, 4CSA Type 3R, 4
• Complies with
• NEMA Type 3R, 4, 12 and 13
• IEC 60529, IP66
• Appropriate components are required to maintain these standards.

Application

• Designed to house the following safety disconnect equipment:
• ABB Controls flange-mounted variable depth operating mechanisms for disconnect switches and circuit breakers. A cable version for circuit breakers is also available.
• Allen Bradley 1494V and 1494U variable depth flange mounted disconnect switches and circuit breaker mechanisms.
• Cutler Hammer C361 variable depth flange mounted disconnect switches and C371 circuit breaker operators. Also, Flex-Shaft handles mechanisms for circuit breakers. Use Cutler-Hammer NEMA 4X-rated operating handles to maintain NEMA 4X integrity.
• Siemens I-T-E Max-Flex flange-mounted variable depth handles for disconnect switch and circuit breakers. Use the handle for NEMA 4 rating.
• General Electric Type STDA flange handles and variable depth operating mechanisms for disconnect switches and circuit breakers. Also, SpectraFlex cable operators for circuit breakers.
• Square D Class 9422 disconnect switches with flange-mounted variable depth operating mechanisms or cable mechanisms and Class 9422 flange-mounted variable depth operating mechanisms or cable mechanisms for circuit breakers. SN4SS enclosures will not accept Square D Class 9422 bracket-mounted disconnect devices, 9422TG1, or TG2 devices.

Construction

• Formed 14-gauge doors with 16 or 14 (36x32" and larger) gauge steel.
• Continuously welded seams.
• Larger sizes include door stiffeners.
• The formed lip on the door and enclosure excludes flowing liquids and contaminants.
• Cutouts and holes are provided to suit the flange handle operating mechanism.
• Doors may be easily removed for modifications and are interchangeable.
• The door is secured with an easily operated 2 or 3-point handle.
• A cover interlock bracket is included on the door.
• Collar studs are provided for mounting inner panels.
• The removable inner panel is sold separately.
• Seamless poured-in-place gasket.
• A bonding stud is provided on the door, and a grounding stud is provided in the enclosure.
• Includes hardware kit with panel mounting nuts and sealing washers for wall mounting holes.
• Disconnects and operating mechanisms are not provided with the enclosure and must be ordered separately from the manufacturer.

Finish

• The cover and enclosure are finished in recoatable smooth ANSI 61 gray powder coating.