Eaton MD118E73NV Transformer - UL Listed
Part Number: MD118E73NV
Quick Summary
Transformer is a dry-type, three-phase isolation device used to safely power motor drives and control panels. Engineers often struggle with heat, enclosure space, and maintenance when choosing vented versus non-ventilated designs. UL Listed certification ensures safety compliance for industrial environments, while the DT-3 enclosure and 60 Hz operation support reliable, compliant installations. This model delivers a practical balance of performance and footprint, enabling predictable life-cycle costs for distributed power in process and manufacturing facilities. By combining a 11 kVA rating with aluminum windings and a 150°C rise, it supports demanding applications with confidence. Leverage Eaton MD118E73NV for easier installation, serviceability, and consistent electrical isolation across multi-drive systems.
Product Information
Extended Description
MD118E73NV Eaton: Drive Isolation Transformer, Ventilated, Dry Type Distribution, DT-3, Three-phase, PV: 460 delta, Taps: 1 at +5% FCAN, 1 at -5% FCBN, SV: 460 delta, 150°C, 11 kVA, Al windings, Frame: 917N
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
MD118E73NV
UPC
786680053191
Product Length/Depth
24.67 in
Product Height
56.18 in
Product Width
31.44 in
Product Weight
1262 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
Totally enclosed non-ventilated DS-3 or DT-3
Coil material
Aluminum
Design
DT-3
Frame
917N
Tap size
1 at +5% FCAN, 1 at -5% FCBN
Type
Dry Type Distribution, Drive Isolation Transformer
Frequency rating
60 Hz
Kva Rating
11 kVA
Phase
Three-phase
Primary voltage
460 V
Secondary Voltage
460 V
Temperature rise
150 °C rise
Feature → Dry-type DT-3 enclosure with totally enclosed non-ventilated design. Business Impact → Reduces dust ingress and maintenance needs, improving reliability in harsh industrial environments. Application → Ideal for control panels and distributed drive systems in manufacturing facilities. Feature → 11 kVA three-phase rating with 460 V primary and 460 V secondary. Business Impact → Delivers consistent voltage transformation with robust load handling, improving motor start-up performance and drive isolation. Application → Suitable for motor drives and process control panels in power distribution networks. Feature → Tap options (+5% FCAN, -5% FCBN). Business Impact → Enables voltage tuning to compensate for supply fluctuations, reducing nuisance tripping and improving control stability. Application → Used in facilities with variable line voltages or long feeder runs. Feature → Aluminum coil material. Business Impact → Lighter weight and improved heat dissipation facilitate easier installation and lower cooling requirements. Application → Fits in space-constrained electrical rooms and reduces mounting stress. Feature → Frame 917N and overall dimensions (24.67 in L, 56.18 in H, 31.44 in W). Business Impact → Predictable footprint supports accurate enclosure planning and quicker retrofit projects. Application → Enables straightforward replacement and integration with existing frames. Feature → Temperature rise of 150°C. Business Impact → Supports higher insulation margins for sustained performance under peak loads. Application → Beneficial in high-demand industrial drives and distribution panels. Feature → UL Listed certification. Business Impact → Provides regulatory acceptance for safety and compliance in critical installations. Application → Essential for controls in manufacturing, energy, and process industries. Feature → Warranty aligned with Eaton policy (one year from installation or 18 months from shipment). Business Impact → Reduces risk and simplifies procurement planning with clear service terms. Application → Suitable for long-term asset management in plant environments.
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FAQs
The MD118E73NV is a 3-phase, 11 kVA, 460 V primary-to-460 V secondary dry-type transformer with a DT-3 enclosure. It fits control panels and motor-drive installations in harsh industrial environments, offering a compact footprint (frame 917N) and outer dimensions suitable for standard electrical rooms.
Key specs include 11 kVA rating, 60 Hz frequency, 460 V primary and secondary voltages, aluminum windings, DT-3 enclosure, and a 150°C rise. Tap adjustments include +5% FCAN and -5% FCBN, with a 917N frame and total enclosure designed for rugged, non-ventilated service.
Yes. With dry-type DT-3 isolation, three-phase 460 V in/out, and a robust 11 kVA rating, it provides safe voltage transformation and isolation for motor drives, reducing noise, improving control stability, and protecting drives from voltage spikes in distributed drive systems.
The MD118E73NV carries UL Listed certification, indicating compliance with essential safety standards for industrial electrical equipment and facilitating regulatory acceptance in plant environments.
Eaton offers a one-year warranty from the date of installation or 18 months from shipment, whichever occurs first. This provides a clear basis for maintenance planning and asset lifecycle budgeting in plant operations.