Eaton DSD SR30420 Selector Switch - Hazardous Locations

Part Number: DSD SR30420
Eaton Crouse-Hinds logo
Manufacturer
Eaton Crouse-Hinds
Part number
DSD SR30420
Category

Quick Summary

Eaton Crouse-Hinds DSD SR30420 selector switch provides reliable control for hazardous-area equipment enclosures. In harsh facilities, operators struggle with selecting components that deliver safety, durability, and straightforward maintenance without compromising performance. This device is certified for NEC/CEC compliance and hazardous locations ratings, including Class I, Division 1; Class II, Division 1; Class III, and it works with NEMA 3, 5, 12 enclosures, ensuring robust protection. With a 600 Vac rating and 30 A capacity, it supports demanding motor and process control while offering long service life in challenging industrial environments. By pairing this switch with EDS/EFS back boxes, maintenance strategies simplify inspections and reduce downtime, delivering tangible value for automation and electrical teams.

Product Information

Extended Description

DSD SR30420 Eaton Crouse-Hinds: Eaton Crouse-Hinds series DSD-SR selector switch, 30A, Four-pole, 2, On/Off, 600 Vac, EDS/EFS back boxes
Product Name
Eaton Crouse-Hinds series DSD-SR selector switch
Catalog Number
DSD SR30420
Product Length/Depth
2.38 in
Product Height
5.875 in
Product Width
3.5 in
Product Weight
1.58 lb
UPC
662276093577
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
Four-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 Canadian certification DSD-SR Explosionproof HP Rated Selector Switch Sub-assembly Canadian certification Eaton Specification Sheet - DSD SR30420
Feature: 30A at 600 Vac capacity; Business Impact: handles motor loads and startup surges with headroom, reducing nuisance trips and unplanned downtime; Application: motor control panels in hazardous locations. Feature: Four-pole, two-position On/Off design; Impact: clear operating sequence and reduced misoperation risk; Application: safe, predictable control circuits in harsh environments. Feature: Explosion-protected construction with NEC/CEC compliance and hazardous location ratings; Impact: regulatory risk mitigation and faster approvals; Application: control panels in chemical plants and oil & gas facilities. Feature: NEMA ratings 3, 5, 12; Impact: robust environmental protection across indoor/outdoor industrial settings; Application: instrumentation and process controls in variable conditions. Feature: EDS/EFS back-box compatibility; Impact: easy mounting and retrofit with standard Eaton enclosures; Application: seamless panel integration and maintenance efficiency. Feature: Compact dimensions and weight (2.38 in depth, 5.875 in height, 3.5 in width, 1.58 lb); Impact: predictable panel layout and easier handling during installation; Application: space-constrained control panels. Feature: Certifications including NEC/CEC, Class I/II/III, NEMA 3/5/12; Impact: broad regulatory acceptance and cross-industry applicability; Application: manufacturing, chemical processing, and mining. Feature: 600 Vac / 30A with On/Off operation; Impact: reliable power control for motors and equipment; Application: general-purpose hazardous-location switching with long-term cost efficiency.

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FAQs

Yes. The DSD SR30420 is designed for use with Eaton EDS/EFS back boxes, simplifying mounting in standard hazardous-location panels. Ensure the enclosure rating matches the installation environment and confirm the 600 Vac, 30 A rating aligns with the connected loads. This minimizes wiring changes and speeds up commissioning in retrofits or new builds.
It is explosion-protected and NEC/CEC compliant, with hazardous location ratings across Class I, Division 1; Class II, Division 1; and Class III. Combined with NEMA 3, 5, 12 protection and EDS/EFS back boxes, the switch delivers safer operation, regulatory alignment, and robust performance in challenging environments like refineries or chemical plants.
The four-pole configuration provides independent control paths for circuits, increasing reliability and reducing misoperation during startup. The two-position (On/Off) scheme offers clear operator feedback and straightforward sequencing, which is especially beneficial for motor starters, process control settings, and panel layouts where space and clarity matter.
The DSD SR30420 carries NEC/CEC compliance, Hazardous/Classified Locations ratings (Class I, Division 1; Class II, Division 1; Class III), and NEMA ratings 3, 5, 12. These certifications support installation in North American plants, chemical facilities, and other high-hazard environments while simplifying procurement and audits.
Rigid construction and standardized back-box compatibility reduce maintenance intervals and spare part diversity. The 30A at 600 Vac rating supports durable load handling, lowering risk of unexpected failures, downtime, and maintenance costs. Over the asset lifecycle, this translates to higher uptime, safer operations, and a lower total cost of ownership for hazardous-location control panels.