Eaton P55G11S0518CUB Mini-Power Center - NEMA 3R
Part Number: P55G11S0518CUB
Quick Summary
Eaton Mini-Power Center powers compact electrical panels in commercial and light-industrial applications. Operators often struggle with space, heat, and regulatory compliance in tight enclosures; this unit fits a small footprint while delivering a reliable 5 kVA power source. It carries ANSI UL Listed, IEEE Certified, and CSA Certified marks, with NAFTA compliance for cross-border sourcing. Designed for wall mounting in a NEMA 3R environment, it enables code-compliant, scalable power distribution with straightforward installation and long-term reliability.
Product Information
Extended Description
P55G11S0518CUB Eaton: 5 kVA Mini-Power Center 1PH 550 V-120/240 V, NEMA 3R, 115°C rise, 307, M55G11DB, Copper, 18 spaces, bolt-on
Product Name
Eaton Mini-Power center
Catalog Number
P55G11S0518CUB
UPC
786680240706
Product Length/Depth
9.66 in
Product Height
36.14 in
Product Width
12.56 in
Product Weight
161 lb
Compliances
NAFTA
Certifications
ANSI UL Listed IEEE Certified CSA Certified
Coil material
Copper
Enclosure
NEMA 3R
Frame
307
Insulation
180 °C
Mounting
Wall Mount
Tap size
2 at -5% FCBN
Type
Mini-power center
Wiring connection
M55G11DB
Frequency rating
60 Hz
kVA
5 kVA
Kva Rating
5 kVA
Phase
Single-phase
Secondary Voltage
120/240 V
Sound Level
NEMA ST-20
Temperature rise
115 °C rise
Volt ampere rating
5 kVA
Modification 1
NEMA 3R
Weathershield
Not required
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - P55G11S0518CUB
Feature: 5 kVA single-phase transformer with 60 Hz frequency and 120/240 V secondary. Benefit: Supports critical loads with stable voltage while enabling compact panel designs in space-constrained rooms. Application: Commercial distribution panels and light-industrial control cabinets. Feature: NEMA 3R enclosure. Benefit: Weather- and moisture-resilient protection, suitable for indoor and sheltered outdoor installations. Application: Outdoor-ready transformer centers in labs and mechanical rooms. Feature: Wall-mount, bolt-on configuration with an 18-space footprint. Benefit: Space-saving installation and scalable distribution for growing panel needs. Application: Wall-installations in data centers, manufacturing lines, or utility rooms. Feature: Copper coil and 180 °C insulation with 115 °C rise. Benefit: Durability and reliability under higher ambient temperatures and load transients. Application: Continuous operation in demanding environments. Feature: Tap size 2 at -5% FCBN. Benefit: Voltage regulation to maintain output within tolerance during line fluctuations. Application: Critical power for sensitive electronics and automation gear.
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FAQs
This unit is explicitly designed for wall-mount installations in NEMA 3R enclosures. It provides a 5 kVA single-phase, 60 Hz transformer with a 120/240 V secondary, and a compact 9.66 in depth, 12.56 in width, and 36.14 in height footprint. Verify mounting location supports a vertical enclosure and that mounting hardware and space allow access to the 18-space configuration and M55G11DB wiring. Compatibility confidence increases when your panel spec calls for a 5 kVA transformer with copper windings and NAFTA-compliant sourcing.
The P55G11S0518CUB combines a slim depth with a high 18-space capacity, enabling dense panel configurations. Its NEMA 3R enclosure supports indoor and sheltered outdoor use, and its wall-mount design minimizes floor space. With a 5 kVA rating and copper windings, it delivers reliable power without requiring a large cabinet, reducing footprint while maintaining performance for critical loads.
The unit carries ANSI UL Listed, IEEE Certified, and CSA Certified marks, indicating robust safety and performance validation. It also lists NAFTA compliance for cross-border procurement. These certifications streamline regulatory approvals for commercial and industrial projects and support safer, standardized integration into existing electrical systems.
Voltage regulation relies on a tap size of 2 at -5% FCBN, allowing minor adjustments to compensate for line drops. Copper windings and 180 °C insulation support durability, while a 115 °C rise rating indicates solid performance under elevated temperatures. Routine maintenance should include visual inspection, insulation checks, and verification of tap connections to ensure consistent output over time.
Typical uses include commercial distribution panels, transformer centers, and industrial control panels in manufacturing facilities, data centers, and building automation systems. The unit’s compact footprint, NEMA 3R protection, and 120/240 V secondary make it ideal for space-limited environments requiring reliable power distribution, code compliance, and straightforward installation within Eaton’s Transformer Flex Center ecosystem.