Eaton STN0.25(400/230) Industrial Control Transformer - CSA Certified
Part Number: STN0.25(400/230)
Quick Summary
Eaton STN0.25(400/230) industrial control transformer provides 400 V to 230 V control power for panel-mounted circuits. Engineers often struggle with voltage drift, nuisance trips, and space constraints inside control enclosures. CSA compliance is built in, and CE certification can be provided on request to support global installations. With a 250 VA rating and a compact footprint, it delivers reliable control power while simplifying panel design. Designed for single‑phase systems, it integrates smoothly with IEC-based installations and reduces wiring complexity in automation projects. In short, this transformer supports uptime, safety, and regulatory alignment for power distribution in manufacturing environments. Trust Eaton for proven performance.
Product Information
Extended Description
STN0.25(400/230) Eaton: Eaton, IEC, industrial control transformer, STN0.25(400/230)
Product Name
Eaton Type STN industrial control transformer
Catalog Number
STN0.25(400/230)
EAN
4015082049805
Product Length/Depth
5.5 in
Product Height
5.5 in
Product Width
6.5 in
Product Weight
6.87 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.
Compliances
CSA
Certifications
Contact Manufacturer
Design
STN
Primary voltage
400 V
Volt ampere rating
250 VA
Phase
Single-phase
Secondary voltage
230 V
Feature: 250 VA control transformer for robust control power. Benefit: Ensures relays, contactors, and PLC I/O have dependable voltage, reducing nuisance trips and downtime. Application: panel-mounted control power in automation lines, machine controls, and relay islands. Long-tail keywords: 250 VA transformer, single-phase transformer, 400/230 V control power. Feature: Primary 400 V and secondary 230 V ratings. Benefit: Seamless integration with common mid-range industrial mains while delivering safe low-voltage control signals. Application: electrical panels and machine control circuits in industrial environments. Long-tail keywords: 400 V to 230 V transformer, 400/230 V primary/secondary, IEC-style installation. Feature: Single-phase design. Benefit: Simpler wiring, faster installation, lower upfront cost and maintenance burden. Application: standard automation panels and machine control systems. Long-tail keywords: single-phase control transformer, simple wiring, panel mount transformer. Feature: Compact footprint with dimensions 5.5 in L, 5.5 in H, 6.5 in W; weight 6.87 lb. Benefit: Fits tight enclosures, frees space for other controls, and eases retrofits. Application: space-constrained control panels and retrofit projects. Long-tail keywords: compact transformer, panel-mounted transformer, space-saving design. Feature: CSA compliant; CE certification available on request; Eaton warranty. Benefit: Reduces regulatory risk, supports global deployments, and minimizes ownership cost over uptime. Application: compliant installations in North America and international projects; service and warranty coverage. Long-tail keywords: CSA compliance, CE on request, Eaton warranty. Feature: Durable construction and reliable performance. Benefit: Predictable operation in demanding environments with minimal maintenance. Application: manufacturing lines, automation systems, and process control cabinets. Long-tail keywords: industrial transformer reliability, Eaton STN reliability, robust control power.
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FAQs
Install the STN0.25(400/230) with proper clearances around the enclosure to ensure adequate ventilation. Mount on a stable panel surface, connect the 400 V primary and 230 V secondary leads per the Eaton data sheet, and verify compliance with CSA requirements. Use appropriate fusing and wiring practices to match the 250 VA rating and single-phase operation.
Key specs include a 400 V primary voltage, 230 V secondary voltage, and a 250 VA rating in a single-phase configuration. It weighs 6.87 lb and has dimensions of roughly 5.5 in (L) × 5.5 in (H) × 6.5 in (W). These values guide panel space planning and wiring size for reliable control power.
Yes, the product lists CSA compliance, supporting North American electrical standards. CE certification is available on request to support global deployments. If CE is required, contact Eaton for the certification package and any additional installation documentation.
The transformer carries Eaton’s standard policy: one year from installation or eighteen months from shipment, whichever comes first. This coverage helps reduce lifecycle costs and provides a clear path for replacement or service if performance concerns arise during operation.
Common applications include machine control panels, automation systems, and manufacturing line controls that require reliable low-voltage control power from a 400 V source. It is well-suited for panel builders and OEMs needing compact, single-phase control transformers with predictable performance.