Eaton S40N14S05CU Transformer - UL Listed NEMA 3R
Part Number: S40N14S05CU
Quick Summary
The Eaton S40N14S05CU transformer provides dependable, single-phase power for control panels and industrial equipment. Engineers often face voltage mismatches and downtime when transformers don’t align with system needs. This unit is UL Listed and CSA Certified, housed in a rugged NEMA 3R enclosure for outdoor or harsh environments, ensuring reliability where moisture and dust are present. Its broad primary voltage range and fixed 5 VA secondary support small control circuits with reduced panel complexity. The encapsulated epoxy design enhances resilience against shocks and vibration, while the no-taps configuration simplifies installation and minimizes wiring errors. For projects requiring compliant, ready-to-deploy power, this transformer delivers consistent performance, facilitating streamlined procurement and scalable automation deployments.
Product Information
Extended Description
S40N14S05CU Eaton: Eaton General purpose encapsulated transformer, ep, NEMA 3R, Frame 177, 60 Hz, single-phase, 190 V, 200 V, 208 V, 220 V, 380 V, 400 V, 416 V, 440 V, 110/220 V, No Taps, 115 °C rise, 5
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S40N14S05CU
UPC
786680099885
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 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 CSA Certified
Enclosure
NEMA 3R
Frame
Frame 177
Tap size
No Taps
Type
EP
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
190 V, 200 V, 208 V, 220 V, 380 V, 400 V, 416 V, 440 V
Secondary Voltage
110/220 V
Temperature rise
115 °C rise
Volt ampere rating
5
Feature: General purpose encapsulated transformer with NEMA 3R enclosure. Business Impact: Provides reliable operation in outdoor or damp environments, reducing field failures and maintenance costs. Application: Control panels exposed to moisture or dust can rely on durable protection while meeting industrial standards. Feature: Fixed 5 VA, single-phase output with secondary 110/220 V. Business Impact: Supports small control circuits without oversizing, cutting capital and running costs. Application: Machine tools and PLC inputs in compact enclosures benefit from precise, predictable voltage delivery. Feature: Broad primary voltage range (190–440 V) and 60 Hz operation. Business Impact: Flexibly matches regional supply variations, minimizing stocking needs and conversion efforts. Application: Global installations or multi-site deployments where input voltages vary. Feature: No taps and epoxy encapsulation. Business Impact: Reduces installation complexity and improves shock and vibration resistance, extending service life. Application: Harsh industrial environments with mechanical vibration or impact risks. Feature: Certifications and warranty. Business Impact: UL Listed and CSA Certified products support compliant sourcing and regulatory alignment, backed by a one-year warranty from installation or eighteen months from shipment. Application: Procurement for regulated projects, quality-conscious OEMs, and long-term maintenance planning.
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FAQs
Yes. The S40N14S05CU is housed in a NEMA 3R enclosure, designed for outdoor or damp environments. Its epoxy encapsulation protects windings from moisture and dust, making it suitable for rugged installations and reducing enclosure-related maintenance. Ensure mounting provisions align with the Frame 177 footprint and ensure proper clearance for heat dissipation.
Primary voltage ranges from 190 to 440 V, accommodating 60 Hz operation. The secondary is fixed at 110/220 V with a 5 VA rating and no taps. This configuration simplifies wiring and ensures predictable performance for small-control circuits. It is designed for single-phase applications in compact control cabinets and similar equipment.
Absolutely. The 5 VA output at 110/220 V is ideal for sensing circuits, relays, and PLC power inputs. Its encapsulated EP design and broad primary range support reliable control circuits in machines and tooling, while the NEMA 3R enclosure provides protection in challenging environments, reducing field failures and maintenance needs.
This transformer carries UL Listed and CSA Certified markings, confirming compliance with safety and performance standards for electrical equipment. These certifications help with regulatory approvals, traceability, and supplier qualification, enabling safer procurement and smoother integration into compliant industrial control systems.
Eaton offers a one-year warranty from installation or eighteen months from shipment, whichever occurs first. The robust enclosure and reliability reduce downtime, spare-part sprawl, and field service costs, delivering a favorable return on investment for OEMs and end users through improved uptime and predictable maintenance budgets.