Eaton DSD SR30120 Selector Switch - Hazardous Locations
Part Number: DSD SR30120
Manufacturer
Eaton Crouse-Hinds
Part number
DSD SR30120
Quick Summary
Eaton Crouse-Hinds DSD SR30120 selector switch provides reliable 30A control for hazardous-location applications in industrial facilities. Operators often struggle with rugged devices that fail in harsh environments or don’t fit standard back boxes. This unit meets NEC/CEC requirements and hazardous-location ratings including Class I, Division 1; Class II, Division 1; and Class III, while remaining compatible with EDS/EFS back boxes. With 600 VAC operation and a compact footprint, it streamlines installation, reduces parts variety, and supports scalable control panels for growing automation needs.
Product Information
Extended Description
DSD SR30120 Eaton Crouse-Hinds: Eaton Crouse-Hinds series DSD-SR selector switch, 30A, Single-pole, 2, On/Off, 600 Vac, EDS/EFS back boxes
Product Name
Eaton Crouse-Hinds series DSD-SR selector switch
Catalog Number
DSD SR30120
Product Length/Depth
2.38 in
Product Height
5.875 in
Product Width
3.5 in
Product Weight
1 lb
UPC
662276040441
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class II, Division 1 Class III
NEMA Rating
3 5 12
Amperage Rating
30A
Voltage rating
600 Vac
Switch function
On/Off
Number Of Poles
Single-pole
Number Of Positions
2
Used with
EDS/EFS back boxes
DSD-SR Series Explosionproof HP Rated Selector Switch Sub-assembly catalog page
DSD-SR Explosionproof HP Rated Selector Switch Sub-assembly UL certification
DSD-SR Explosionproof HP Rated Selector Switch Sub-assembly UL certification
Eaton Specification Sheet - DSD SR30120
High-current capability translates to fewer devices and cleaner wiring in hazardous locations, reducing panel space, installation time, and wiring errors while supporting reliable control in oil, gas, and chemical processing facilities. The On/Off function with a single-pole, two-position design minimizes operator misoperation and speeds emergency response, boosting safety and uptime on critical lines. Compatibility with Eaton EDS/EFS back boxes enables fast retrofit or new-panel installations without custom enclosures, cutting lead times and training needs for maintenance teams. The NEC/CEC compliance and Class I, II, III ratings, along with NEMA 3/5/12 protection, deliver regulatory assurance against dust, water ingress, and corrosive environments, reducing maintenance costs and long-term total cost of ownership. At 1 lb with compact dimensions, installation is straightforward in crowded panels, and field servicing is feasible with standard tools, improving technician efficiency. In real-world automation projects, consolidating components around a single, robust selector switch lowers spare parts inventory and procurement cycles, supporting lean operations.
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FAQs
The DSD SR30120 is designed to work with Eaton EDS/EFS back boxes, enabling straightforward retrofits and new-panel installations in hazardous locations. Its single-pole, two-position On/Off configuration, combined with a compact footprint, reduces panel depth and simplifies wiring. This compatibility minimizes integration risk in existing control panels and supports rapid field upgrades without major enclosure redesigns.
The switch is rated for 30A at 600 VAC, suitable for main-stop and process-control functions in demanding environments. It uses a simple On/Off function with two positions, designed for single-pole operation. The device supports installation in hazardous locations under NEC/CEC guidelines and is compatible with EDS/EFS back boxes to maintain safety and compliance during operation.
Yes. The DSD SR30120 is explicitly designed for hazardous locations, carrying Class I Division 1, Class II Division 1, and Class III ratings, along with NEC/CEC compliance and a NEMA 3/5/12 protection profile. This makes it suitable for oil and gas processing, chemical plants, mining, and other high-risk industries where explosion protection and reliable control are critical.
The device adheres to NEC/CEC standards and hazardous-location classifications (Class I Division 1, Class II Division 1, Class III). It carries a NEMA rating of 3, 5, 12 and is designed for compatibility with back boxes such as EDS/EFS. These certifications ensure regulatory compliance, environmental protection, and safer operation within complex industrial installations.
Maintenance benefits come from its rugged construction, simplified wiring, and compatibility with standard back boxes, which reduce downtime during replacements or upgrades. By consolidating control points into a single 30A, 600 VAC selector switch, facilities can lower spare parts inventory, shorten installation cycles, and improve uptime—delivering a favorable return on investment in high-demand processing environments.