Eaton HBAB44574EM1 Linear Fluorescent Light Fixture - IP66

Part Number: HBAB44574EM1
Manufacturer
Eaton
Part number
HBAB44574EM1

Quick Summary

HBAB44574EM1 is a hazardous-area linear fluorescent light fixture designed for industrial facilities. In hazardous locations, engineers often struggle with fixtures that fail under dust, moisture, or corrosive vapors. It meets NEC/CEC standards, is IP66 rated, and certified for Hazardous/Classified Locations (Class I, Division 2; Class II, Division 1; Class III). Designed for long-term reliability and reduced downtime, this through-feed luminaire pairs with emergency backup capabilities to support safe egress and continuous operation in demanding environments. For facilities aiming to improve maintenance efficiency and regulatory compliance, it also aligns with through-feed installation workflows and 277V maximum circuits to simplify integration.

Product Information

Extended Description

HBAB44574EM1 Eaton: Eaton Crouse-Hinds series Pauluhn Apex HBA linear fluorescent light fixture,3/4",(2) NPT hubs,4 ft,Acrylic lens,T5HO mini bi-pin,Aluminum,4-lamp,Emergency battery back-up,one lamp,277V maximum,Through feed,Bolted door,120-277 Vac,54W
Product Name
Eaton Crouse-Hinds series Pauluhn Apex HBA linear fluorescent light fixture
Catalog Number
HBAB44574EM1
UPC
662276678415
Product Length/Depth
50.59 in
Product Height
6.53 in
Product Width
15.72 in
Product Weight
33 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 2 Class II, Division 1 Class III
NEMA Rating
4
Ingress protection (IP) ratings
IP66
Lamp type
Fluorescent
Type
Bolted door
Material
Aluminum
Lamp length
4 ft
Number of lamps
4-lamp
Light type
T5HO mini bi-pin
Voltage rating
120-277 Vac
Frequency rating
50/60 Hz
Style
Through feed
Entry size
3/4"
Entry type
(2) NPT hubs
Wattage
54W
Lens material
Acrylic
Special features
Emergency battery back-up ballast, one lamp, 277V maximum
Feature → Business Impact → Application: The HBAB44574EM1 uses a 4-lamp, 54W T5HO mini bi-pin configuration, delivering high-lumen output with efficient energy use, reducing operating costs while maintaining bright, uniform illumination across large industrial spaces. This translates to measurable productivity gains and safer working conditions in refineries or chemical plants where consistent light is critical for quality control and operator safety. Application: hazardous area lighting with energy-efficient performance and reduced maintenance needs.Feature → Business Impact → Application: The aluminum housing with acrylic lens provides rugged durability and corrosion resistance in harsh environments, extending service life in coastal plants or wash-down zones. Application: outdoor or wash-down industrial facilities requiring long-term resilience and minimal downtime.Feature → Business Impact → Application: IP66 protection, NEMA 4 enclosure rating, and a bolted-door design ensure ingress protection against dust and water, lowering failure rates and service calls. Application: wet, dusty, or demanding locations such as chemical processing, mining, or offshore platforms.Feature → Business Impact → Application: Through-feed entry with two 3/4" NPT hubs enables flexible conduit routing and easier installation alongside existing wiring, reducing install time and labor costs. Application: retrofit projects and new builds in plants needing clean, scalable electrical layouts.Feature → Business Impact → Application: Emergency battery back-up ballast, one-lamp operation at a 277V maximum, supports critical safety lighting during power loss, improving life-safety compliance and reducing downtime during outages. Application: emergency lighting in hazardous zones, ensuring egress paths remain illuminated during mains failures.Feature → Business Impact → Application: 50/60 Hz compatibility and 4 ft length with 4 lamps deliver broad applicability across facilities with mixed electrical infrastructure, enabling straightforward procurement and stocking, and simplifying maintenance planning. Application: general illumination for large process areas, maintenance bays, and equipment shelters.

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FAQs

HBAB44574EM1 supports through-feed installation with two 3/4" NPT hubs and a bolted-door enclosure, enabling flexible conduit routing and secure access. It operates on 120-277 Vac at 50/60 Hz and is designed for hazardous/classified locations, simplifying integration in refineries, chemical plants, or mining facilities while minimizing wiring conflicts.
Yes. The fixture is certified for Hazardous/Classified Locations including Class I Division 2, Class II Division 1, and Class III, with an IP66 rating and a NEMA 4 enclosure, ensuring reliable performance in explosive or damp conditions typical of chemical and energy plants.
The unit uses a 54W, 4-lamp configuration with T5HO mini bi-pin lamps, 50/60 Hz operation, and a voltage range of 120-277 Vac. Its 4 ft length and acrylic lens provide ample illumination while maintaining energy efficiency and long-term durability in industrial environments.
The built-in emergency battery back-up ballast supports one-lamp operation at 277V maximum, enabling safe, illuminated egress during power outages. This capability is essential for safety compliance in hazardous areas and reduces downtime during outages, minimizing risk to personnel and assets.
Official documentation includes Eaton’s Crouse-Hinds Pauluhn Apex Hazardous Area Linear Fluorescent brochures, catalogs, and the HBAB44574EM1 specification sheet. These resources provide detailed installation steps, wiring diagrams, and regulatory references to streamline procurement and on-site setup.