Eaton DSD SR30332 S349 Selector Switch - Hazardous Locations
Part Number: DSD SR30332 S349
Manufacturer
Eaton Crouse-Hinds
Part number
DSD SR30332 S349
Quick Summary
DSD SR30332 S349 selector switch is a rugged 30A, three-pole control device designed for safe operation in hazardous locations. For engineers facing lockout requirements, inconsistent performance, and downtime, selecting a proven sub-assembly with robust enclosure ratings reduces risk and maintenance. This Eaton Crouse-Hinds solution delivers NEC/CEC compliance, hazardous/classified location ratings, and a NEMA 3, 5, 12 protection profile to support durable installations in oil, gas, mining, and chemical processing. With EDS/EFS back-box compatibility and a lockout feature, it streamlines installation and supports safer, regulatory-compliant machine control for hazardous-area equipment.
Product Information
Extended Description
DSD SR30332 S349 Eaton Crouse-Hinds: Eaton Crouse-Hinds series DSD-SR selector switch, 30A, Three-pole, 3, Lockout for three position switch, handle in either position, Double-throw with off, 600 Vac, EDS/EFS back boxes
Product Name
Eaton Crouse-Hinds series DSD-SR selector switch
Catalog Number
DSD SR30332 S349
Product Length/Depth
2.38 in
Product Height
5.875 in
Product Width
3.5 in
Product Weight
1.6 lb
UPC
662276028807
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class III Class II, Division 1 Class I, Division 1
NEMA Rating
3 5 12
Amperage Rating
30A
Voltage rating
600 Vac
Switch function
Double-throw with off
Number Of Poles
Three-pole
Number Of Positions
3
Special features
Lockout for three position switch, handle in either position
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 SR30332 S349
Feature → Business Impact → Application: The 30A, 600 Vac rating enables reliable handling of demanding motor loads, reducing voltage drop concerns and improving wiring efficiency for explosion-protected equipment in chemical plants and refineries. This translates to measurable uptime gains and safer, more efficient control of hazardous-area processes. Feature → Application: Three-pole, 3-position design provides precise manual control in squeeze-off or maintenance modes, enabling clean motor start/stop sequences in mining and oil-field machinery. Feature → Application: Double-throw with off plus a lockout for three-position operation supports compliant lockout/tagout procedures, minimizing startup hazards during servicing in hazardous locations. Feature → Application: EDS/EFS back-box compatibility simplifies retrofits and OEM installations, reducing field labor time and ensuring robust enclosure integrity in harsh environments. Feature → Application: NEC/CEC compliance, Hazardous/Classified Locations area rating, and NEMA 3/5/12 protection enhance regulatory confidence and long-term lifecycle performance for explosion-proof selector switches.
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FAQs
Yes. The DSD SR30332 S349 is designed for use with EDS/EFS back boxes, which simplifies mounting in hazardous-area enclosures. Its three-pole, 30A rating supports demanding loads while maintaining enclosure integrity, making retrofit projects and OEM installations straightforward in offshore, chemical, and mining environments.
The switch is rated for 30A at 600 Vac, with three poles and three positions. It employs a double-throw with off configuration and includes a lockout feature for three-position operation. These specifications support safe start/stop control of motors and other heavy loads in hazardous locations.
Yes. It carries NEC/CEC compliance and hazardous/classified location ratings, along with a NEMA 3/5/12 protection profile, making it suitable for oil and gas, chemical processing, and mining environments where rugged, explosion-proof control is required.
The device adheres to NEC/CEC standards, supports hazardous location classifications (Class I, II, III, Division 1), and carries a NEMA 3/5/12 rating. UL certification pages are available for sub-assembly certification, ensuring regulatory alignment for Canadian and US installations.
Back-box compatibility and a robust lockout feature reduce field labor during installation and maintenance. The durable construction and hazardous-location ratings contribute to longer service intervals, minimized unplanned downtime, and safer LOTO-compliant maintenance workflows in process plants and mining sites.