Eaton DSD948 J1 T4 - Pilot Light Cover, Class I Div 1
Part Number: DSD948 J1 T4
Quick Summary
DSD948 J1 T4 is a hazardous-area pilot light cover and device sub-assembly for explosion-protected enclosures. Engineers often struggle with sealing integrity, regulatory paperwork, and reliability in harsh environments, where even small seal leaks or miswiring can trigger costly downtime. It meets NEC/CEC standards with Class I, Division 1 ratings and compatible NEMA configurations, delivering proven performance in offshore platforms, chemical plants, and mining sites. The factory-sealed design minimizes ingress and simplifies certification tasks, while the 440-480 Vac rating aligns with common hazloc power systems. This solution also supports scalable installations and tight integration with Eaton’s DSD family, helping facilities improve uptime, reduce maintenance costs, and standardize hazardous-location signaling across global operations.
Product Information
Extended Description
DSD948 J1 T4 Eaton Crouse-Hinds: Eaton Crouse-Hinds series DSD pilot light cover and device sub-assembly, Red, Feraloy iron alloy, Transformer, factory sealed, One pilot light, 440-480 Vac
Product Name
Eaton Crouse-Hinds series DSD pilot light cover and device sub-assembly
Catalog Number
DSD948 J1 T4
Product Weight
3.4 lb
UPC
782274776705
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class III Class II, Division 2 Class II, Division 1 Class I, Division 2
NEMA Rating
7 3 9
Voltage rating
440-480 Vac
Color
Red
Material
Feraloy iron alloy
Special features
Transformer, factory sealed
Type
One pilot light
DSD and DSDX Cover and Device Sub-assemblies catalog page
DSD Explosionproof Cover and Device Sub-assemblies Canadian certification
DSD Explosionproof Cover and Device Sub-assemblies Canadian certification
IF 1929 - Toggle Operator for EDS, EDSX, EFD, DSD and DSDX Series
IF 1929 - Toggle Operator for EDS, EDSX, EFD, DSD and DSDX Series
IF 1929 - Toggle Operator for EDS, EDSX, EFD, DSD and DSDX Series
Eaton Specification Sheet - DSD948 J1 T4
Feature: Red pilot light cover crafted from Feraloy iron alloy with a built-in transformer and factory-sealed construction. Business Impact: Enhanced visibility, rugged protection against dust, moisture, and explosive atmospheres, leading to longer enclosure life and fewer field failures. Application: Control panels in chemical processing and oil & gas facilities where reliability is critical. Feature: 440-480 Vac voltage rating. Business Impact: Seamless compatibility with standard hazloc power distributions, reducing the need for on-site transformers and stock variations. Application: Hazardous-area lighting circuits and indicator systems in refineries and mining operations. Feature: One pilot light integrated into a compact sub-assembly. Business Impact: Simpler wiring, faster installation, and reduced enclosure footprint, lowering labor costs. Application: PLC/SCADA signaling in harsh environments. Feature: NEC/CEC compliance and NEMA ratings (7, 3, 9). Business Impact: Regulatory approval and safer operation across global projects, accelerating permit acquisition. Application: Projects requiring strict certifications for hazardous locations. Feature: Factory-sealed design and documented installation guidance. Business Impact: Fewer ingress paths, lower maintenance intervals, and improved reliability. Application: New builds and retrofits in hazardous areas. Insight: Compatible with the DSD family for scalable signaling solutions and streamlined spare-part planning, supporting long-term total-cost-of-ownership benefits.
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FAQs
The DSD948 J1 T4 is designed as a pilot light cover and device sub-assembly within the Eaton Crouse-Hinds DSD family. It features an integrated transformer and factory-sealed construction that fits standard DSD/DSDX footprints, simplifying retrofit projects and new installations alike. Reference installation guidelines IF 1929 for toggle operators ensure proper adapter fits and secure mounting.
This unit is rated 440-480 Vac and is certified for hazardous locations under NEC/CEC standards. It supports Class I, Division 1 operation, with additional Class II and Class III considerations, and a NEMA rating of 7, 3, 9. These certifications enable safe use in hazardous environments such as refineries, chemical plants, and mining sites.
Typical deployments include control panels and indicator signaling in oil and gas, chemical processing, mining, and offshore platforms. The rugged, factory-sealed design withstands harsh conditions, while the 440-480 Vac rating aligns with common hazloc power distributions, making it a reliable choice for global facilities needing compliant, durable pilot signaling.
Ensure proper enclosure integrity by using the factory-sealed sub-assembly as designed, follow the IF 1929 installation instructions for toggle operators, and verify class ratings align with the target location. Use correct mounting hardware and maintain enclosure seals to prevent ingress, and confirm compatibility with existing DSD/DSED series components.
The factory-sealed design reduces ingress-related failures and minimizes maintenance cycles in harsh environments, contributing to lower lifecycle costs. By standardizing on a single, compliant sub-assembly across facilities, maintenance planning becomes simpler, spare parts inventories are streamlined, and asset uptime improves, delivering measurable ROI over project lifecycles.