Square D EFDC318 T8 Manual Motor Starter - Explosionproof
Part Number: EFDC318 T8
Quick Summary
EFDC318 T8 manual motor starter switches provide reliable motor control for industrial equipment in hazardous locations. Maintenance downtime and safety compliance are top concerns in environments with flammable gases, vapors, or dust, where the right starter minimizes fault conditions. It carries NEC/CEC compliance and is rated for Hazardous/Classified Locations, including Class I Division 1 and 2, Class II Division 1 and 2, and Class III, with compatible NEMA 3, 7, 9, and 12 enclosures. Designed for 1 inch through-feed, two-pole control on 250 to 600 VAC circuits, this device supports 1, 2, and 3 HP motor loads while simplifying procurement and installation. By aligning with Square D and Eaton Crouse-Hinds standards, it delivers reliable installation in safety-critical OEM and retrofit projects, reducing maintenance costs and downtime.
Product Information
Extended Description
EFDC318 T8 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EFD manual motor starter switch, 20A/30A, With switch, 1 HP/2 HP/3 HP, Square D starter, Feraloy iron alloy, Single-gang, Two-pole, Through feed, 1", 250/600 Vac
Product Name
Eaton Crouse-Hinds series EFD manual motor starter switch
Catalog Number
EFDC318 T8
Product Length/Depth
3.5 in
Product Height
6.97 in
Product Width
4.88 in
Product Weight
7.38 lb
UPC
782274272108
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3 7 9 12
Enclosure
With switch
Manufacturer
Square D
Number of gangs
Single-gang
Number Of Poles
Two-pole
Style
Through feed
Trade size
1"
Voltage rating
250 Vac/600 Vac
Horsepower
1 hp/2 hp/3 hp
Amperage Rating
20 A/30 A
Material
Feraloy iron alloy
SP3D Design Package - EDS and EFD Explosionproof Motor Starters
EFD Series Explosionproof Motor Starters catalog page
EDS and EFD Explosionproof Motor Starters UL certification
EDS and EFD Explosionproof Motor Starters UL certification
Eaton Specification Sheet - EFDC318 T8
Feature is robust explosionproof construction and hazardous location rating. This delivers a strong business impact by ensuring regulatory compliance and reducing risk exposure in oil & gas, chemical processing, and mining environments. The application is direct: use in hazardous locations to control small motors with confidence, while maintaining safe shutdowns and quick reset after faults. Feature through-feed, single-gang, 2-pole design. The business impact is streamlined wiring and straightforward panel integration, which minimizes installation time and diagnostics, supporting faster commissioning of new lines and retrofits. Application spans 1 inch trade size installations in 250/600 VAC circuits, enabling consistent control across mixed motor loads common in process plants. The result is lower total cost of ownership and greater uptime for critical equipment. Feature feraloy iron alloy construction. This material choice translates into higher resistance to temperature and impact, extending service life in harsh environments and reducing replacement costs—benefiting maintenance teams in petrochemical facilities and water treatment plants. The application is rugged control in demanding conditions, where components endure vibration, dust, and temperature swings. Feature compatibility with Square D and Eaton catalogs, including SP3D design packages and UL/ULC certifications. The business impact is a smoother procurement and integration process, with readily available design data and measured conformity to industry standards, cutting lead times and risk for engineered projects. Application is broad across OEMs and retrofit projects that demand dependable explosionproof motor control with qualified documentation and access to spare parts. Feature dual-voltage capability 250 VAC/600 VAC and 1/2–3 HP ranges. The impact is flexible motor control for diverse lineups, enabling a single starter to cover multiple applications, reducing inventory complexity and procurement costs. Application includes single-gang, two-pole control for compact panels, enabling installation in tight spaces typical of compact motor control centers in processing facilities. Feature NEMA ratings 3, 7, 9, 12. The business impact is robust protection against dust, water, and harsh atmospheres, improving reliability in outdoor or damp environments and lowering maintenance cycles for hazardous-location equipment.
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FAQs
EFDC318 T8 uses a single-gang, two-pole through-feed design with a 1 inch trade size and is intended for installation in hazardous/classified locations. It supports compatible enclosures that meet NEMA ratings 3, 7, 9, and 12, aligning with NEC/CEC requirements. For retrofit projects, confirm enclosure compatibility with your control panel and follow standard installation practices to maintain explosionproof integrity.
The EFDC318 T8 supports 20 A or 30 A, and motor horsepower ratings of 1/2 HP, 1 HP, 2 HP, and 3 HP. It is designed for 250 VAC or 600 VAC operation, with a two-pole configuration and a 1 inch through-feed style, making it suitable for small to mid-size motor control in hazardous environments.
Industries such as oil and gas, chemical processing, mining, and wastewater treatment benefit most due to hazardous-location ratings and explosionproof construction. Typical applications include control of small motors in process skids, pump stations, and remote pump controls where reliability and code compliance are critical, with reduced downtime and safer operation in challenging environments.
EFDC318 T8 is designed to meet NEC/CEC standards and is rated for Hazardous/Classified Locations including Class I Division 1 and 2, Class II Division 1 and 2, and Class III. It also carries NEMA ratings 3, 7, 9, 12, and is compatible with UL certification documentation. These certifications facilitate compliance during procurement and commissioning.
The rugged feraloy iron alloy construction provides enhanced durability in harsh environments, reducing replacementFrequency and maintenance costs. Its standardized 1 inch, single-gang, two-pole design streamlines installation and parts stocking, while documentation and design package availability (3D models, catalogs) accelerate commissioning and future upgrades, delivering measurable ROI through uptime gains and lower lifecycle costs.