Why Choose the ETE WV150P8S8 150 VA Wide-Input-Voltage Control Transformer?
The ETE WV150P8S8 is a versatile 150 VA single-phase wide-input-voltage control transformer designed for industrial electrical control panels, machinery, switchgear and automation systems. Part of the ETE WV wide-input-voltage transformer series, it combines multiple high-voltage primary taps with configurable dual secondary windings, providing flexible AC voltage conversion for industrial installations.
The WV150P8S8 features a 0/500/550/600/690 V primary terminal arrangement, supporting compatible 500, 550, 600 and 690 V AC supplies. Its two 0/110/120 V secondary windings can be connected in parallel for 110 V or 120 V AC, or in series for 220 V or 240 V AC. This flexibility makes the transformer suitable for industrial control equipment with different operating voltage requirements.
With a rated apparent power of 150 VA, Class E insulation and 10% voltage regulation, the WV150P8S8 offers a practical solution for appropriately rated industrial control circuits. Its compact dimensions of 96 × 76 × 103 mm and weight of 2.3 kg support installation in electrical control cabinets. The specified enclosure references are EPH 2 or EPN 1.
Key Advantages
- 150 VA rated capacity for industrial control, signalling and automation applications.
- Wide primary voltage selection covering 500, 550, 600 and 690 V AC.
- Dual secondary windings provide flexible series and parallel output configurations.
- 110 V or 120 V AC parallel output for compatible industrial control devices.
- 220 V or 240 V AC series output for higher-voltage control circuits.
- 10% voltage regulation provides a defined secondary voltage regulation characteristic.
- Class E insulation provides a specified thermal insulation classification.
- Compact 96 × 76 × 103 mm dimensions help conserve installation space.
- Single-phase construction suitable for machinery and electrical control assemblies.
- EPH 2 or EPN 1 enclosure references assist with selecting suitable protective housing.
Key Features
- ETE WV wide-input-voltage control transformer series.
- 150 VA rated apparent power.
- Single-phase transformer configuration.
- Primary terminals: 0/500/550/600/690 V.
- Selectable primary voltages: 500, 550, 600 and 690 V AC.
- Secondary terminals: 0/110/120 V + 0/110/120 V.
- Secondary winding arrangement: Dual windings configurable in series or parallel.
- Parallel secondary output: 110 V or 120 V AC.
- Series secondary output: 220 V or 240 V AC.
- Voltage regulation: 10%.
- Insulation class: E.
- Dimensions: 96 × 76 × 103 mm.
- Weight: 2.3 kg.
- Enclosure references: EPH 2 or EPN 1.
The ETE WV150P8S8 is designed for industrial control applications where the available AC supply may be higher than conventional control circuit voltages. Its selectable primary terminals support 500, 550, 600 and 690 V AC, allowing the transformer to be configured for several compatible industrial electrical systems without changing the transformer model.
The transformer incorporates two secondary windings, each with 0/110/120 V terminals. Connecting matching winding taps in parallel with the correct polarity provides 110 V or 120 V AC. Connecting the windings in series with the correct additive polarity provides 220 V or 240 V AC. All connections must follow the manufacturer's wiring instructions to prevent incorrect voltages or winding faults.
Based on the 150 VA rating, the theoretical full-load secondary current is approximately 1.36 A at 110 V AC, 1.25 A at 120 V AC, 0.68 A at 220 V AC or 0.63 A at 240 V AC. These calculated values assume the full transformer rating is available at the selected output voltage and connection configuration. Actual permissible winding currents must comply with ETE's specifications.
The specified 10% voltage regulation means that secondary voltage variation under different load conditions should be considered when selecting connected equipment. Correct primary tap selection, suitable electrical protection, conductor sizing, secondary winding polarity and appropriate installation clearances are essential, particularly when working with primary supplies up to 690 V AC.
Typical Applications
- Industrial electrical control panels and switchgear assemblies.
- Control circuits supplied from 500, 550, 600 or 690 V AC systems.
- 110 V and 120 V AC relay and contactor control circuits.
- 220 V and 240 V AC industrial control equipment.
- OEM machinery designed for different industrial supply voltages.
- Industrial process control and automation installations.
- Motor control centres and machinery control cabinets.
- Industrial signalling and monitoring equipment.
- Electrical assemblies requiring selectable isolated AC control voltages.
- Replacement of existing control transformers with matching electrical and mechanical specifications.
