Why Choose the ETE WV250P7S8 Wide Input Voltage Control Transformer?
The ETE WV250P7S8 is a high-quality, continuous-rated 250 VA single-phase control transformer designed to provide reliable voltage transformation for industrial control circuits, electrical panels and automation systems. Part of the established ETE WV wide input voltage transformer series, it offers flexible primary voltage selection and configurable dual secondary windings for a wide range of industrial electrical applications.
Manufactured by Eastern Transformers & Equipment (ETE), the WV250P7S8 features a multi-tap primary winding with selectable 380–480 V AC inputs and two secondary windings, each providing 110 V or 120 V AC. These secondary windings can be connected in parallel for 110/120 V operation or in series for 220/240 V operation, making the transformer particularly suitable for control panels requiring different operating voltages.
With a continuous power rating of 250 VA, Class E insulation and 8% voltage regulation, the WV250P7S8 delivers dependable performance in industrial environments. Its compact 120 × 88 × 120 mm construction, IP20 touch-proof terminals and core earth connection support straightforward integration into electrical control cabinets and machinery installations.
Key Advantages
- Reliable 250 VA single-phase control transformer for industrial electrical and automation applications.
- Wide input voltage selection from 380–480 V AC using multiple primary winding taps.
- Dual 110/120 V AC secondary windings provide flexible output configurations.
- Series or parallel secondary connections allow 110/120 V or 220/240 V AC outputs.
- Class E insulation designed in accordance with EN 61558-1.
- 8% voltage regulation for dependable control circuit power transformation.
- IP20 touch-proof terminals help reduce accidental contact with live connections.
- Class H varnish impregnation and core earth connection support robust industrial construction.
- Compact dimensions make the transformer suitable for installation inside electrical control panels.
- Compatible with ETE EPH 3 or EPN 2 enclosure references for applications requiring an additional enclosure.
Key Features
- ETE WV wide input voltage control transformer series.
- 250 VA continuous rated power.
- Single-phase transformer construction.
- Primary voltage taps: 0/380/400/420/440/460/480 V AC.
- Dual secondary voltage taps: 0/110/120 V AC + 0/110/120 V AC.
- Parallel secondary connection: 110/120 V AC.
- Series secondary connection: 220/240 V AC.
- Operating frequency: 50/60 Hz.
- Class E electrical insulation with Class H varnish impregnation.
- 8% voltage regulation.
- IP20 touch-proof connection terminals.
- Integrated core earth connection.
- Suitable for ambient temperatures from −10 °C to +35 °C.
- Compact industrial transformer construction for control cabinet installation.
Control transformers such as the ETE WV250P7S8 are designed to convert industrial supply voltages into suitable secondary voltages for electrical control equipment. By using electromagnetic induction between primary and secondary windings, the transformer provides voltage conversion and electrical isolation between the supply and control circuits, helping support dependable operation of industrial machinery and automation equipment.
The WV250P7S8 incorporates multiple primary voltage taps at 380, 400, 420, 440, 460 and 480 V AC, allowing the appropriate primary connection to be selected for the available supply. This flexibility is particularly valuable for machine builders, panel manufacturers and maintenance engineers working with different industrial electrical supply arrangements.
Its two independently configurable 110/120 V AC secondary windings provide additional installation flexibility. When connected in parallel with the correct winding polarity and matching voltage taps, the transformer provides a 110 V or 120 V output with the combined current capacity of the windings. Alternatively, connecting the windings in series allows 220 V or 240 V output operation. In either configuration, the transformer remains subject to its total 250 VA continuous rating.
Designed for reliable operation within industrial electrical installations, the ETE WV series combines durable construction, Class E insulation and touch-proof terminals. Correct primary tap selection, secondary wiring, earthing and suitable circuit protection are essential to achieving safe and reliable transformer operation.
Typical Applications
- Industrial electrical control panels and distribution cabinets.
- Machine tool control circuits and manufacturing equipment.
- Contactor, relay and motor starter control circuits.
- Industrial automation and PLC-associated control systems.
- Conveyor systems and material handling machinery.
- Packaging and production line equipment.
- Control circuit voltage conversion in industrial machinery.
- 110/120 V AC control equipment supplied from higher-voltage industrial systems.
- 220/240 V AC control circuits requiring transformer isolation.
- OEM machinery manufacturing and electrical panel building.
- Maintenance, refurbishment and replacement of industrial control transformers.
