Why Choose the ETE WV250P8S8 Wide-Input-Voltage Control Transformer?
The ETE WV250P8S8 is a versatile 250 VA single-phase wide-input-voltage control transformer designed to provide reliable electrical isolation and flexible AC control power for industrial machinery, electrical panels and automation systems. Part of the ETE WV Wide Input Voltage transformer series, it features primary terminals marked 0/500/550/600/690 V and two separate secondary windings with terminals marked 0/110/120 V + 0/110/120 V.
Manufactured by Eastern Transformers & Equipment (ETE), the WV250P8S8 is suitable for industrial installations operating from nominal 500 V, 550 V, 600 V or 690 V AC supplies. Its dual-secondary winding arrangement allows 110 V AC or 120 V AC parallel connections, or 220 V AC or 240 V AC series connections, providing useful flexibility for different control circuit requirements.
With a rated capacity of 250 VA, Class E insulation and 8% voltage regulation, this transformer provides a practical solution for electrical control systems requiring selectable supply and output voltages. Measuring 120 × 88 × 120 mm and weighing 3.9 kg, the WV250P8S8 is suitable for integration into industrial control equipment, with EPH 3 or EPN 2 specified as enclosure references.
Key Advantages
- 250 VA single-phase control transformer for industrial electrical applications.
- Wide primary voltage selection with nominal 500, 550, 600 and 690 V AC connections.
- Dual tapped secondary windings provide flexible 110 V AC and 120 V AC winding configurations.
- Parallel secondary connections provide nominal 110 V AC or 120 V AC output.
- Series secondary connections provide nominal 220 V AC or 240 V AC output.
- Electrical isolation between the primary supply and secondary control circuits.
- 8% voltage regulation provides a defined measure of secondary voltage variation under load.
- Class E insulation supports dependable electrical and thermal performance.
- Compact 3.9 kg construction is practical for industrial panel integration.
- EPH 3 or EPN 2 enclosure references assist with compatible enclosure selection.
Key Features
- ETE WV Wide Input Voltage transformer series.
- 250 VA rated apparent power.
- Single-phase transformer configuration.
- Primary terminals: 0/500/550/600/690 V.
- Four nominal primary voltage taps for compatible industrial supply systems.
- Secondary terminals: 0/110/120 V + 0/110/120 V.
- Two separate tapped secondary windings.
- 110 V AC or 120 V AC output using correctly connected parallel windings.
- 220 V AC or 240 V AC output using correctly connected series windings.
- 8% voltage regulation.
- Class E insulation system.
- EPH 3 or EPN 2 enclosure reference.
- 120 × 88 × 120 mm overall dimensions.
- 3.9 kg transformer weight.
The ETE WV250P8S8 is designed for electrical installations where several higher industrial supply voltages may be encountered. Its primary winding includes terminals marked 0/500/550/600/690 V, allowing the installer to select the appropriate nominal voltage connection for the available supply.
This arrangement makes the transformer particularly useful for OEM machinery manufacturers, industrial panel builders and equipment suppliers working with installations that operate at different supply voltages. Rather than requiring a separate transformer model for every nominal supply, the WV250P8S8 provides several primary connection options within one product.
The primary voltage terminals are discrete winding taps, not an automatic voltage-ranging input. The correct primary connection must be selected before energising the transformer, and installation must follow the manufacturer's wiring instructions and applicable electrical safety requirements.
Selectable 110/120 V AC or 220/240 V AC Secondary Outputs
A key feature of the WV250P8S8 is its dual-secondary winding configuration. The transformer incorporates two separate windings, each with terminals marked 0/110/120 V, allowing the output to be configured for different industrial control voltages.
- 110 V AC parallel output: Both secondary windings are connected in parallel using their corresponding 110 V taps and the correct winding polarity.
- 120 V AC parallel output: Both secondary windings are connected in parallel using their corresponding 120 V taps and the correct winding polarity.
- 220 V AC series output: The two 110 V winding sections are connected in series with the correct polarity to provide a nominal combined output of 220 V AC.
- 240 V AC series output: The two 120 V winding sections are connected in series with the correct polarity to provide a nominal combined output of 240 V AC.
The 250 VA rating applies to the complete transformer and must not be interpreted as 250 VA available independently from each secondary winding. Parallel connections require correctly matched voltage taps and winding polarity, while series connections must be arranged for the intended combined output voltage.
All secondary connections should be made in accordance with ETE's wiring instructions, including appropriate winding phasing, load assessment and circuit protection.
Typical Applications
- Industrial electrical control panels requiring isolated 110 V AC or 120 V AC supplies.
- Control systems requiring 220 V AC or 240 V AC secondary connections.
- Machinery operating from nominal 500 V, 550 V, 600 V or 690 V AC supplies.
- Industrial automation and machine control equipment.
- Contactor, relay and control device circuits within the transformer rating.
- OEM machinery intended for different industrial electrical supply systems.
- Manufacturing plant and production line control equipment.
- Electrical panel building and control system integration.
- Industrial process control installations requiring flexible secondary voltages.
