Eaton EMN24 W21 0 Manual Line Starter - Hazardous/Classified Locations
Part Number: EMN24 W21 0
Quick Summary
EMN24 W21 0 manual line starter enables safe single-phase motor control in hazardous locations. In many plants, engineers struggle to source devices that combine rugged construction, compact footprint, and strict compliance without extending installation times. The unit supports NEC/CEC standards with hazardous-area classifications, UL certifications, and robust NEMA protection, delivering reliable performance where safety matters most. With a copper-free aluminum enclosure and a 2 hp/3 hp rating, it reduces maintenance costs while streamlining panel integration for automation projects.
Product Information
Extended Description
EMN24 W21 0 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EMN manual line starter, With starter, 2 HP/3 HP, Cutler-Hammer starter, Copper-free aluminum, NEMA size 1, Two-pole, Single-phase, 115/208/240 Vac, Omit heater
Product Name
Eaton Crouse-Hinds series EMN manual line starter
Catalog Number
EMN24 W21 0
Product Length/Depth
6.88 in
Product Height
8.81 in
Product Width
7.03 in
Product Weight
14 lb
UPC
782274597546
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 2 Class III Class II, Division 1 Class I, Division 1 Class II, Division 2
NEMA Rating
7 12 9 3
Enclosure
With starter
NEMA size
1
Number Of Poles
Two-pole
Phase
Single-phase
Horsepower
2 hp/3 hp
Voltage rating
115 Vac/208 Vac/240 Vac
Manufacturer
Cutler-Hammer
Material
Copper-free aluminum
Special features
Omit heater
EMN Switch Style Explosionproof Motor Starters catalog page
EMN Switch Style Explosionproof Motor Starters UL certification
EMN Switch Style Explosionproof Motor Starters UL certification
IF 677 - EMN Series Manual Motor Starters
Eaton Specification Sheet - EMN24 W21 0
Feature: Two-pole, single-phase design compatible with 115/208/240 Vac. Business Impact: Simplifies wiring and reduces control panel complexity, accelerating installation. Application: Suitable for small conveyors and fans in plant environments. Feature: 2 hp/3 hp horsepower rating. Business Impact: Handles common small-motor loads with efficient starting and stopping, improving line throughput. Application: Machine tools and auxiliary motors in automation cells. Feature: Copper-free aluminum housing. Business Impact: Offers corrosion resistance and lighter weight, lowering maintenance and handling costs. Application: Outdoor or moist environments in hazardous locations. Feature: Enclosed starter with NEMA 1 enclosure. Business Impact: Eases end-user integration and protects components from dust and incidental contact, reducing field wiring concerns. Application: Panel-mounted motor control in industrial facilities. Feature: Omit heater option. Business Impact: Reduces initial cost and ongoing maintenance while improving reliability in temperature-controlled spaces. Application: Short-cycle or low-heat applications in process lines. Feature: Hazardous/Classified Locations area classification and NEC/CEC compliance. Business Impact: Enables safe operation in Class I/II/III environments with UL certifications and robust NEMA protection. Application: Oil, gas, chemical processing, mining, and other safety-critical industries.
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FAQs
The EMN24 W21 0 is a two-pole, single-phase starter designed for 115/208/240 Vac operation and fits standard NEMA Type 1 enclosures. It integrates with familiar Cutler-Hammer/MCC panels, requiring standard mounting dimensions and wiring. When upgrading, verify panel cutouts match the EMN24 W21 0 footprint and confirm wiring diagrams align with 115/208/240 Vac supply lines to minimize rework.
Key specs include a two-pole, single-phase design rated for 2 hp/3 hp, operating at 115 Vac, 208 Vac, or 240 Vac. The enclosure is copper-free aluminum, providing rugged protection in harsh environments, with a NEMA 1 enclosure rating for basic protection and a compact 6.88 in length by 8.81 in height by 7.03 in width footprint.
Best suited for hazardous locations requiring explosion-protected motor control, such as chemical processing, oil and gas facilities, mining operations, and other industrial plants. Its hazardous/classified location rating and NEC/CEC compliance make it appropriate for demanding environments where reliable start-stop control for small motors is essential.
EMN24 W21 0 features NEC/CEC compliance and hazardous-location area classification. It supports Class I, Division 2, Class II, Division 1 and 2, Class III, Division 1, along with NEMA ratings 7, 12, 9, and 3. UL certifications for hazardous locations further validate its suitability for controlled safety-critical installations.
The omission of a heater reduces ongoing parts and energy costs, while the copper-free aluminum housing lowers corrosion risk and weight, easing installation and service. The unit’s compact footprint and robust enclosure translate to faster panel integration, lower downtime, and longer service life in harsh environments, delivering measurable total-cost-of-ownership benefits.