Eaton Z48N11S51A Hazardous Location Transformer - UL Listed
Part Number: Z48N11S51A
Quick Summary
Z48N11S51A hazardous location transformer from Eaton delivers compact, encapsulated power conversion for Class I Division 2 environments. It enables safe, reliable operation in areas with flammable gases or vapors where standard equipment cannot be used. Plants often struggle with moisture ingress, dust intrusion, and unreliable enclosures that compromise safety and uptime; this unit’s EPZ design, UL Listing, and rugged NEMA 3R enclosure address those challenges. The 0.5 kVA rating supports typical control power without excessive footprint or cost. With 50/60 Hz compatibility and single-phase operation, it aligns with common facility power distribution, reducing wiring complexity and installation time. Choosing this transformer supports compliance, minimizes downtime, and simplifies spare-part management for hazardous-area projects, while maintaining safety and performance.
Product Information
Extended Description
Z48N11S51A Eaton: Eaton Hazardous location encapsulated transformer, class 1 division 2 groups c and d, hazardous location transformer, EPZ, aluminum, NEMA 3R, 57H, 60 Hz, single-phase, 480 V, 120/240 V, NONE, 115 °C rise, 0.5 KVA, indoor-outdoor, 524H
Product Name
Eaton Hazardous location encapsulated transformer
Catalog Number
Z48N11S51A
UPC
786680006128
Product Length/Depth
4.88 in
Product Height
10.11 in
Product Width
9.72 in
Product Weight
21 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Catalog Notes
Model A
Type
Class 1 Division 2 Groups C and D, Hazardous Location Transformer
Coil material
Aluminum
Frequency rating
50/60 Hz
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Design
EPZ
Enclosure
NEMA 3R
Frame
57H
Tap size
None
Volt ampere rating
0.5 kVA
Weathershield
Indoor-Outdoor
Wiring connection
524H
Encapsulated aluminum coil construction protects windings from moisture and contaminants, delivering reliable performance in harsh environments. This feature translates into longer service life and reduced maintenance in hazardous locations, enabling safer operation of motors and controls in process areas. NEMA 3R enclosure with indoor-outdoor rating provides weather resistance and splash protection, allowing safe installation in both controlled plant rooms and exterior equipment pads. For maintenance crews, this means fewer site adaptations and faster commissioning without compromising compliance. Class I Division 2, Groups C & D protection ensures the unit meets strict regulatory requirements for flammable atmospheres. Industry-wide compliance reduces project risk and accelerates acceptance by safety committees while enabling near-term deployment in refineries, chemical plants, and mining facilities. 0.5 kVA power rating with 480 V primary and 120/240 V secondary offers efficient, scalable control power for intelligent motor controllers and automation panels. The compact 4.88 in depth and 10.11 in height footprint supports tight installation spaces while minimizing copper and insulation costs. 50/60 Hz single-phase design simplifies integration with existing electrical infrastructure and reduces the need for frequency conversion. The 524H wiring connection standardization speeds field wiring and minimizes commissioning risk during panel upgrades or new builds. Although optimized for hazardous locations, the transformer remains an indoor-outdoor solution with a robust frame (57H) and a 115 °C rise rating, ensuring resilience under heavy load surges and elevated ambient temperatures. The dedicated EPZ design further enhances insulation performance, helping facilities maintain uptime in demanding environments. Warranty and support from Eaton—25-000 policy, one year from installation or 18 months from shipment—provides assurance and access to spare parts, aligning with procurement requirements and service-level expectations.
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FAQs
Yes. The Z48N11S51A is designed for Class I Division 2, Groups C and D, with an EPZ design and UL Listing, housed in a NEMA 3R enclosure. Its indoor-outdoor capability and 50/60 Hz operation support safe installation in hazardous-area facilities, including chemical plants and refineries. Ensure installation by qualified personnel per local codes.
The transformer provides a 0.5 kVA rating with a 480 V primary and 120/240 V secondary. It is single-phase and supports 50/60 Hz, making it compatible with common industrial panels and control circuits while offering compact power for hazardous-area applications.
Key certifications include UL Listed for hazardous locations, Class I Division 2 protection (Groups C & D), and a NEMA 3R enclosure. The EPZ design enhances insulation performance, while the aluminum coil and 115 °C rise rating contribute to reliability in demanding environments.
Wiring uses the 524H connection standard, with a compact 57H frame and a footprint that suits tight spaces. The enclosure supports indoor-outdoor mounting, so plan for outside-accessible panels if needed. Confirm available space for 4.88 in depth, 9.72 in width, and 10.11 in height to maintain clearance and ventilation.
Eaton provides a warranty under policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This includes access to technical support and spare parts, aligning with project procurement requirements and ongoing maintenance planning.