Eaton SP3563 NW Plug - Hazardous Class I Div 1
Part Number: SP3563 NW
Quick Summary
The Eaton SP3563 NW Plug is a rugged connector engineered for safe, reliable power transfer in hazardous locations. Operators and maintenance teams often struggle with compromised seals, inconsistent ratings, and downtime when wiring in explosive environments. This model meets NEC/CEC standards and hazardous-location ratings, including Class I, Division 1, Class II, Division 1 and 2, and Class III, with corresponding NEMA ratings where approved. The copper-free aluminum housing, brass contacts, and a built-in cable grip with neoprene bushing deliver robust durability and easier handling on-install. With 30A at 480 Vac and a cable diameter range of 0.500–0.875 in, it supports typical industrial loads while maintaining safety margins. The design reduces field rework and supports SRD interlock systems for compliant, maintenance-friendly installations.
Product Information
Extended Description
SP3563 NW Eaton Crouse-Hinds: Eaton Crouse-Hinds series SP plug, 30A, 0.500-0.875" cable diameter, Four-wire, five-pole, Brass contacts, 60-400 Hz, Style 2, Copper-free aluminum, With cable grip and neoprene bushing, 480 Vac, Used with SRD spring door receptacles
Product Name
Eaton Crouse-Hinds series SP plug
Catalog Number
SP3563 NW
UPC
782274083018
Product Weight
5.06 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III Class I, Division 1
NEMA Rating
9 12 7 3
Amperage Rating
30A
Configuration
Four-wire, five-pole
Cable diameter
0.500-0.875 in
Grounding style
Style 2
Voltage rating
480 Vac
Frequency rating
60-400 Hz
Material
Copper-free aluminum
Contact material
Brass
Special features
With cable grip and neoprene bushing
Type
Used with SRD spring door receptacles
BHR and SRD Explosionproof Interlock Receptacles catalog page
BHR and SRD Explosionproof Interlock Receptacles UL certification
BHR and SRD Explosionproof Interlock Receptacles UL certification
IF 308 - SRD Interlock Receptacles
Eaton Specification Sheet - SP3563 NW
Feature: 30A, 480 Vac rating with 60-400 Hz operation. Business impact: Enables reliable power delivery to demanding motors and control circuits in hazardous zones, while preserving safety margins and reducing nuisance tripping. Application: Ideal for heavy-duty feeders, conveyors, pumps, and mixers that require a rugged, explosion-proof interlock interface in Class I/II locations with SRD receptacles. Feature: Copper-free aluminum housing with brass contacts. Business impact: Delivers corrosion resistance and lighter weight, reducing installation fatigue and long-term maintenance costs while maintaining electrical integrity under frequent connect/disconnect cycles. Application: Suitable for outdoor or chemically aggressive environments where rugged, long-life interconnects are required between SRD receptacles and components. Feature: Cable grip and neoprene bushing. Business impact: Provides superior strain relief and environmental sealing, minimizing wear, moisture ingress, and field maintenance. Application: Effective for long cable runs and outdoor hazardous-area installations. Feature: Four-wire, five-pole configuration with Style 2 grounding. Business impact: Ensures proper grounding and fault isolation, simplifying wiring and boosting safety in demanding environments. Application: Controls and feeders requiring reliable interconnection in Class I/II/III locations. Feature: SRD interlock compatibility. Business impact: Seamless integration with existing explosion-proof interlock systems, speeding installation and reducing retrofit risk. Application: Retrofit and new-build projects using SRD spring door receptacles for compliant, maintenance-friendly operation.
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FAQs
When deploying the SP3563 NW in hazardous locations, ensure compatibility with SRD interlock receptacles and observe NEC/CEC requirements for Class I, II, and III environments. Use the built-in cable grip and neoprene bushing to seal and strain-relieve cables rated 0.500–0.875 in diameter. Follow installation sheets such as IF 308 for interlock receptacles to minimize arc exposure during connect/disconnect.
The SP3563 NW supports NEC/CEC standards with hazardous-location ratings including Class I, Division 1 and Class II, Division 1 and 2, plus Class III. It aligns with NEMA ratings 9, 12, 7, and 3 where approved, and is suitable for Hazardous/Classified Locations. These certifications help ensure compliance and safe operation in industrial facilities with explosive atmospheres.
This plug is typically employed in hazardous-location equipment wiring that requires explosion-proof interlocks, such as motors, pumps, conveyors, and process equipment. Its 30A at 480 Vac rating and 60-400 Hz compatibility support heavy-duty industrial loads while maintaining safety margins, especially in Class I/II environments that rely on SRD spring door receptacles.
The SP3563 NW is designed to be used with SRD spring door receptacles, providing a robust, interlocked interface that maintains enclosure integrity and arc-free operation during mating. Its copper-free aluminum body, brass contacts, and built-in grip/bushing simplify field assembly and improve long-term reliability in hazardous locations.
Key resources include the IF 308 installation sheet for SRD interlock receptacles and Eaton’s documentation such as the SRD interlock catalog pages and UL certification reports. You can also review the SP3563 NW specification sheet and the BHR/SRD interlock catalog pages for scope, mounting, and compliance guidance.