Why Choose the ETE WV200P7S8 200 VA Wide-Input-Voltage Control Transformer?
The ETE WV200P7S8 is a 200 VA single-phase wide-input-voltage control transformer designed for industrial electrical installations requiring multiple primary voltage selections and flexible secondary output configurations. Part of the ETE WV wide-input-voltage transformer series, it features 0/380/400/420/440/460/480 V primary terminals and two independent secondary winding terminal groups marked 0/110/120 V + 0/110/120 V.
The WV200P7S8 supports 110 V AC or 120 V AC output with the secondary windings connected in parallel, or 220 V AC or 240 V AC output with the secondary windings connected in series. This versatility makes it suitable for industrial control panels, OEM machinery and automation equipment requiring different AC control voltages without changing transformer models.
Its multi-tapped primary winding accommodates nominal supply selections from 380 V to 480 V AC through the appropriate primary terminals. The dual secondary winding arrangement offers further flexibility, allowing engineers to select the output voltage and winding configuration required by the connected control equipment.
With Class E insulation, 10% voltage regulation, dimensions of 96 × 87 × 103 mm and a weight of 2.8 kg, the ETE WV200P7S8 provides a compact and adaptable industrial control power solution. Associated enclosure references are EPH 2 or EPN 1, supporting enclosure selection during electrical panel design.
Key Advantages
- 200 VA rated capacity: Provides dedicated AC power for compatible industrial control circuits and automation equipment.
- Wide primary voltage selection: Supports nominal 380 V, 400 V, 420 V, 440 V, 460 V and 480 V AC supply connections.
- Dual secondary windings: Features two 0/110/120 V winding groups for flexible output arrangements.
- 110 V AC parallel output: Suitable for compatible 110 V industrial control equipment.
- 120 V AC parallel output: Supports equipment requiring a nominal 120 V AC control supply.
- 220 V AC series output: Provides an alternative voltage configuration for compatible 220 V AC loads.
- 240 V AC series output: Supports compatible 240 V AC control applications.
- Flexible transformer selection: Multiple primary and secondary configurations help accommodate different machinery supply and control voltage requirements.
- Class E insulation: Provides a defined thermal insulation classification.
- 10% voltage regulation: Provides a specified indication of secondary voltage variation under changing load conditions.
- Compact dimensions: The 96 × 87 × 103 mm format assists with electrical panel layout planning.
- 2.8 kg weight: Allows suitable mechanical support and mounting arrangements to be specified.
- Enclosure compatibility references: EPH 2 or EPN 1 options are identified for installation planning.
- Single-phase construction: Suitable for dedicated AC control voltage transformation.
Key Features
- Manufacturer: ETE.
- Series: WV Wide-Input-Voltage Control Transformers.
- Model: WV200P7S8.
- Rated apparent power: 200 VA.
- Rated capacity: 0.2 kVA.
- Transformer type: Single-phase industrial control transformer.
- Primary terminal arrangement: 0/380/400/420/440/460/480 V.
- Selectable primary voltages: 380–480 V AC using the specified terminal positions.
- Secondary winding 1: 0/110/120 V.
- Secondary winding 2: 0/110/120 V.
- Parallel secondary configuration: 110 V or 120 V AC.
- Series secondary configuration: 220 V or 240 V AC.
- Winding connection flexibility: Supports series or parallel connection of the two secondary windings.
- Insulation class: E.
- Voltage regulation: 10%.
- Length: 96 mm.
- Width: 87 mm.
- Height: 103 mm.
- Weight: 2.8 kg.
- Associated enclosure references: EPH 2 or EPN 1.
Flexible Industrial Control Power with Series and Parallel Secondary Connections
The ETE WV200P7S8 is designed to accommodate a range of industrial primary supply voltages while providing selectable secondary control voltages. Its primary terminals cover nominal voltage selections of 380 V, 400 V, 420 V, 440 V, 460 V and 480 V AC, making it suitable for equipment operating on different industrial electrical supply arrangements. The correct primary terminal must be selected to match the actual supply and the manufacturer's connection instructions.
A key advantage is its two separate 0/110/120 V secondary windings. When connected correctly in parallel, the windings provide a nominal 110 V AC or 120 V AC output. Parallel operation allows the current contribution of both windings to be combined, subject to the transformer's overall 200 VA rating. The windings must be connected using matching voltage taps and the correct polarity; incorrect parallel connections can cause damaging circulating currents.
When connected correctly in series, the secondary windings provide a nominal 220 V AC or 240 V AC output. This configuration combines the voltages of the two secondary windings while retaining the transformer's overall apparent power rating. Correct winding polarity and terminal identification are essential, as an incorrect series connection may result in voltage cancellation or an unsuitable output.
At the rated 200 VA capacity, the calculated nominal output currents are approximately 1.82 A at 110 V, 1.67 A at 120 V, 0.91 A at 220 V and 0.83 A at 240 V. These are calculated values based on apparent power divided by nominal voltage, not separately verified manufacturer current ratings. The 200 VA rating applies to the transformer as a whole and must not be interpreted as 200 VA available independently from each secondary winding.
The specified 10% voltage regulation is relevant when assessing secondary voltage variation under changing load conditions. Actual output voltage depends on the primary supply, selected taps and connected load. Equipment with narrow operating voltage tolerances should therefore be checked for compatibility, especially where control relays, contactor coils or other inductive devices introduce changing loads.
With Class E insulation, a compact physical format and associated EPH 2 or EPN 1 enclosure references, the WV200P7S8 is suitable for integration into appropriately engineered industrial electrical assemblies. Installers should provide suitable mounting, primary and secondary circuit protection, conductor sizing, ventilation and electrical clearances. Series and parallel winding connections must follow the manufacturer's wiring instructions.
Typical Applications
- Industrial control panels requiring selectable 110 V or 120 V AC supplies.
- Industrial control panels requiring selectable 220 V or 240 V AC supplies.
- Machinery operating with compatible 380–480 V AC primary supply arrangements.
- OEM machinery and industrial automation systems.
- Control relays and contactors with compatible AC coil voltages.
- Motor control panels requiring dedicated AC control power.
- Industrial signalling and indication circuits.
- Electrical machinery with selectable control voltage requirements.
- Control transformer replacement and maintenance projects.
- Industrial process control equipment with suitable AC loads.
- Electrical panel building and system integration.
- Equipment requiring series-connected or parallel-connected transformer secondary windings.
- Control circuit upgrades requiring a 200 VA multi-voltage transformer.
