Hammond 2STFSD747518SS 74x75x18 Type 4X 304SS Sloped-Top Disconnect Enclosure
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Create Free Business AccountKey Features
- 304 stainless steel two-door freestanding disconnect enclosure, 74.13 x 75.13 x 18.13 in
- Type 4X: UL 508A / CSA Type 3R, 12, 4, 4X; NEMA 3R, 12, 13, 4, 4X; IP66
- 20° sloped top prevents water from resting on the enclosure
- 68.00 x 68.00 in white powder-coated 10 gauge steel inner panel; 17.37 in usable depth
- Pre-installed flange cutout with interlock hardware for multi-vendor disconnect operators
- Main door interlock, screwdriver defeater and padlock hasps on both handles
- Seamless poured-in place gasket and flange trough collar around the door opening
- Heavy duty three point latching with roller ends and lift-off bullet hinges
The Hammond 2STFSD747518SS is a Type 4X sloped top, two-door freestanding disconnect enclosure formed from 304 stainless steel, supplied with an inner panel. It is built to house large disconnect switches and circuit breakers in harsh industrial environments, and its 20° sloped top prevents water from resting on top of the enclosure. The 304 stainless grade covers general corrosion-resistant duty; the same size is also offered in 316 stainless steel as part number 2STFSD747518S16.
The body is formed from 12 gauge stainless steel with smooth, continuously welded seams and a natural, smooth brushed finish. A flange trough collar (FTC) around the door opening excludes liquids and contaminants, a seamless poured-in-place gasket seals the doors, and heavy duty lifting eyes are anchored into reinforced top corners.
Overall size is 74.13 in H1 x 75.13 in W x 18.13 in D (1,883 mm x 1,908 mm x 461 mm), with an H2 height of 79.49 in (2019 mm) at the peak of the sloped top. The formed 10 gauge steel inner panel measures 68.00 x 68.00 in (1727 x 1727 mm), is finished in white powder coating and mounts on collar studs, and the drawing shows 17.37 in of usable depth. The 18.13 in (461 mm) body is the middle of the three depths (12.13, 18.13 and 24.13 in) offered in the series. Shipping weight is 1227 lbs (556.56 kg) on a skid.
The right-hand door is the main door; its handle includes a screwdriver defeater and padlock hasp, and a mechanical interlock prevents the auxiliary door from being opened first. The pre-installed flange cutout accepts flange mounted disconnect operators from ABB, Allen Bradley, C-H Westinghouse / Cutler Hammer, General Electric, Siemens and Square D (verify compatibility in advance), and interlock hardware is included. Disconnect switches, circuit breakers and operators are not provided.
The series is listed to UL 508A and CSA Type 3R, 12, 4 and 4X and complies with NEMA Type 3R, 12, 13, 4, 4X and IEC 60529 IP66 (UL File E65324, CSA LR21001) when appropriate components are used.
Ideal For
- Housing large disconnect switches and circuit breakers in harsh industrial environments
- Outdoor or wet locations where the sloped top sheds water
- Corrosive or wash-down areas needing Type 4X stainless steel
- Multi-vendor flange mounted disconnect operator installations
Overview
| Doors | 2 (right-hand door is the main door) |
| Series | 2STFSD Series - Type 4X Sloped Top Stainless Steel Freestanding Disconnect |
| Part Number | 2STFSD747518SS |
| Companion Part | 2STFSD747518S16 (316 stainless steel, same size) |
| Material Grade | 304 stainless steel |
| Long Description | N4X Slope Top 2 Door Freestanding Disconnect Encl w/panel - 74 x 75 x 18 - 304SS |
| Short Description | SLOPE TOP 2DR FS DISC 304SS |
Dimensions
| Nominal Size | 74 x 75 x 18 in |
| Enclosure Depth | 18.13 in (461 mm) |
| Enclosure Width | 75.13 in (1908 mm) |
| Size (H X W X D) | 74.13 in x 75.13 in x 18.13 in (1,883 mm x 1,908 mm x 461 mm) |
| Inner Panel Width | 68.00 in (1727 mm) |
| Inner Panel Height | 68.00 in (1727 mm) |
| Enclosure Height H1 | 74.13 in (1883 mm) |
| Usable Depth (Drawing) | 17.37 in |
| Enclosure Height H2 (Sloped Top) | 79.49 in (2019 mm) |
| Door Opening Width (Each Door, Drawing) | 32.81 in |
Identifiers
| UPC | 623980799063 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Packaging Type | Skid |
| Shipping Weight | 1227 lbs (556.56 kg) |
Construction & Finish
| Top | 20° sloped top prevents water from resting on top of enclosure |
| Gasket | Seamless poured-in place gasket |
| Hinges | Removable doors on bullet style, heavy duty, lift off hinges |
| Lifting | Heavy duty lifting eyes anchored into reinforced top corners |
| Latching | Heavy duty three point latching mechanism with heavy duty roller ends |
| Center Post | Removable, for easy panel installation |
| Inner Panel | Formed 10 gauge steel on collar studs; panel supports provided |
| Not Included | Disconnect switches, circuit breakers and operators (order separately from the manufacturer) |
| Door Interlock | Mechanical interlock activated by the main door prevents the auxiliary door from being opened first |
| Enclosure Finish | Natural stainless steel, smooth brushed finish |
| Main Door Handle | Screwdriver defeater and padlock hasp |
| Disconnect Cutout | Pre-installed flange cutout for disconnect operators (verify compatibility in advance); interlock hardware included |
| Literature Pocket | Inside of the door |
| Enclosure Material | 12 gauge stainless steel (304 or 316L per series), smooth continuously welded seams |
| Inner Panel Finish | White powder coating |
| Lighting Provision | Provision for mounting fluorescent lighting |
| Door Opening Collar | Flange trough collar (FTC) excludes liquids and contaminants |
| Grounding / Bonding | Bonding stud in the door and grounding stud in the enclosure for each door |
| Secondary Door Handle | Padlock hasp |
Disconnect Compatibility
| Not Compatible | Not compatible with Square D Class 9422 bracket mounted disconnect devices or Class 9422TG1 / TG2 devices |
| Selection Guide | Refer to the Universal Heavy Duty Disconnect Selection Guide |
| Compatible Mechanism 1 | ABB Controls flange mounted variable depth operating mechanisms for disconnect switches and circuit breakers |
| Compatible Mechanism 2 | Allen Bradley 1494V and 1494U variable depth flange mounted disconnect switches and circuit breaker mechanisms |
| Compatible Mechanism 3 | C-H Westinghouse Type C361 disconnect switches and operator mechanisms; Cutler Hammer Type C371 circuit breaker operating mechanisms; Flex-Shaft handle operators for circuit breakers |
| Compatible Mechanism 4 | General Electric Type STDA flange handles and variable depth operating mechanisms; Spectra-Flex cable operators for circuit breakers |
| Compatible Mechanism 5 | Siemens I-T-E Max-Flex flange mounted variable depth operating handles |
| Compatible Mechanism 6 | Square D disconnect switches and circuit breakers used with Class 9422 flange mounted variable depth operating mechanisms or cable mechanisms |
Environmental & Protection
| IP Rating | IEC 60529, IP66 |
| NEMA Type | 3R, 12, 13, 4, 4X |
| Enclosure Type | Type 4X |
Compliance & Certifications
| UL | UL 508A Type 3R, 12, 4, 4X |
| CSA | CSA Type 3R, 12, 4, 4X |
| UL File # | E65324 |
| CSA Cert. # | LR21001 |
| RoHS Compliant | Yes |
| Standards Note | Appropriate components are required to maintain these standards |
| REACH Compliant | Yes |
| Additional Declarations | RoHS Directive 2011/65/EU; Directive (EU) 2015/863 |
| EU Declaration Of Conformity | Low Voltage Directive 2014/35/EU (Disconnect Enclosures product series) |
| Applicable Standard IP Code) | EN 60529: 1992 + A2: 2013 / IEC 60529: 2001-02 + A2: 2013-08 |
| Applicable Standard (Machinery) | EN 60204-1: 2006 / IEC 60204-1: 2005-10, Safety of Machinery - Electrical Equipment of Machines - Part 1: General Requirements |
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Frequently Asked Questions
What are the dimensions of the 2STFSD747518SS?▾
It measures 74.13 in H1 x 75.13 in W x 18.13 in D (1,883 x 1,908 x 461 mm), with an H2 height of 79.49 in (2019 mm) at the sloped top. The inner panel is 68.00 x 68.00 in (1727 x 1727 mm).
Is a disconnect switch or circuit breaker included?▾
No. Disconnect switches, circuit breakers and operators are not provided with the enclosure and must be ordered separately from the manufacturer. The enclosure does include the pre-installed flange cutout and interlock hardware.
Which disconnect mechanisms fit this enclosure?▾
It is designed for flange mounted variable depth mechanisms from ABB Controls, Allen Bradley (1494V and 1494U), C-H Westinghouse / Cutler Hammer (C361, C371, Flex-Shaft), General Electric (STDA, Spectra-Flex), Siemens I-T-E Max-Flex and Square D Class 9422 flange or cable mechanisms. It will not receive Square D Class 9422 bracket mounted devices or Class 9422TG1/TG2 devices.
What is the difference between the 2STFSD747518SS and the 2STFSD747518S16?▾
They share the same dimensions; the 2STFSD747518SS is 304 stainless steel and the 2STFSD747518S16 is 316 stainless steel.
What ratings does it carry?▾
The series is UL 508A and CSA Type 3R, 12, 4, 4X and complies with NEMA Type 3R, 12, 13, 4, 4X and IEC 60529 IP66. Appropriate components are required to maintain these standards.
How heavy is it and how does it ship?▾
Shipping weight is 1227 lbs (556.56 kg) and it ships on a skid. Heavy duty lifting eyes are anchored into the reinforced top corners.
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