Why Choose the ETE WV150P7S7 Wide-Input-Voltage Control Transformer?
The ETE WV150P7S7 is a compact and versatile 150 VA single-phase wide-input-voltage control transformer designed to provide dependable AC voltage transformation and electrical isolation for industrial machinery, electrical control panels and automation systems. As part of the ETE WV wide-input-voltage stock control transformer range, it is particularly suitable for electrical engineers, control panel builders and OEM machine manufacturers requiring flexible primary voltage selection and configurable secondary outputs.
The WV150P7S7 features primary terminals marked 0/380/400/420/440/460/480 V, providing six nominal input voltage options for industrial electrical supplies. Its dual 0/24 V secondary windings can be connected in parallel to provide a 24 V AC output or in series to provide a 48 V AC output. This flexible secondary arrangement enables the transformer to accommodate different control voltage requirements without requiring separate transformer models.
With a rated apparent power of 150 VA, Class E insulation and 10% voltage regulation, the WV150P7S7 provides a practical solution for industrial control circuits supplying compatible relays, contactor coils, signalling devices and auxiliary equipment. Its compact dimensions of 96 × 76 × 103 mm and weight of just 2.3 kg make it suitable for installation in electrical control cabinets, with associated EPH 2 or EPN 1 enclosure references.
Key Advantages
- Reliable 150 VA single-phase control transformer for industrial machinery and automation applications.
- Wide-input-voltage design supporting nominal primary connections from 380 V to 480 V AC.
- Six selectable primary voltage connections for compatibility with different industrial supply systems.
- Dual 24 V AC secondary windings providing flexible output configurations.
- 24 V AC parallel connection for low-voltage industrial control circuits.
- 48 V AC series connection for compatible auxiliary and control equipment.
- Class E insulation for dependable industrial electrical performance.
- 10% voltage regulation specified for the transformer.
- Provides electrical isolation between primary and secondary circuits.
- Compact 96 × 76 × 103 mm construction for space-conscious electrical installations.
- Lightweight 2.3 kg design for straightforward integration into control panels.
- Part of the established ETE WV stock control transformer range.
Key Features
- ETE WV wide-input-voltage control transformer series.
- 150 VA rated apparent power.
- Single-phase transformer construction.
- Primary terminals: 0/380/400/420/440/460/480 V.
- Nominal primary voltage options: 380 V, 400 V, 420 V, 440 V, 460 V and 480 V AC.
- Secondary terminals: 0/24 V + 0/24 V.
- Secondary winding arrangement: Two 24 V AC windings.
- Parallel secondary connection: 24 V AC.
- Series secondary connection: 48 V AC.
- Insulation class: Class E.
- Voltage regulation: 10%.
- Electrical isolation between primary and secondary windings.
- Suitable for industrial control and auxiliary AC power applications.
- Dimensions: 96 × 76 × 103 mm.
- Weight: 2.3 kg.
- Associated enclosure references: EPH 2 or EPN 1.
Flexible 24 V and 48 V Control Power for Industrial Automation
Industrial control transformers such as the ETE WV150P7S7 convert incoming AC supplies into lower secondary voltages suitable for industrial control equipment, machinery and auxiliary electrical circuits. By providing electrical isolation between primary and secondary windings, the transformer enables compatible low-voltage control devices to operate from a dedicated AC supply.
The WV150P7S7 offers a flexible primary terminal arrangement with nominal connections for 380 V, 400 V, 420 V, 440 V, 460 V and 480 V AC. This makes the transformer suitable for industrial installations using different supply voltages, provided that the appropriate primary terminal is selected and the connections follow the manufacturer's instructions.
The transformer incorporates two separate 24 V AC secondary windings, which can be configured to suit different control circuit requirements. Connecting the windings in parallel provides 24 V AC, while connecting them in series provides 48 V AC. Correct winding polarity is essential: parallel connections must be made with matching polarity, while series connections must use an additive arrangement. All connections should follow the manufacturer's wiring instructions.
The 150 VA rating applies to the transformer as a whole, rather than independently to each secondary winding. This capacity makes the WV150P7S7 suitable for multiple compatible control devices, provided their combined apparent power and starting requirements remain within the permitted transformer and winding ratings. Its 10% voltage regulation should also be considered when selecting voltage-sensitive equipment, as the secondary voltage may be higher at light load than at rated load.
With Class E insulation, compact dimensions and a manageable 2.3 kg weight, the WV150P7S7 is a practical choice for industrial control panel installations where space and voltage flexibility are important. The associated EPH 2 or EPN 1 enclosure references provide manufacturer-specific enclosure options, while the installation should incorporate suitable electrical protection, earthing, ventilation and secure mounting.
Typical Applications
- 24 V AC industrial control circuits.
- 48 V AC auxiliary control circuits.
- Industrial machinery control panels and electrical cabinets.
- Contactor and relay coil supply circuits.
- Machine tool control and auxiliary electrical systems.
- Industrial signalling and indication equipment.
- Conveyor and material handling control systems.
- Packaging and production machinery.
- OEM machinery and factory automation installations.
- Electrical control panel manufacturing and refurbishment.
- Replacement transformers for compatible industrial control applications.
