Why Choose the ETE WV1500P7S7 Wide-Input-Voltage Control Transformer?
The ETE WV1500P7S7 is a powerful 1500 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 stock control transformer range, it combines substantial apparent power capacity with multiple primary voltage connections and configurable secondary windings, making it a practical choice for industrial control panel builders, OEM machinery manufacturers and electrical maintenance engineers.
The WV1500P7S7 features primary terminals marked 0/380/400/420/440/460/480 V, providing six nominal input voltage options for industrial electrical installations. 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 allows the same transformer model to support different industrial control voltage requirements while maintaining a total rated apparent power of 1500 VA.
With Class E insulation and 4% voltage regulation, the ETE WV1500P7S7 offers a combination of control power capacity, voltage flexibility and relatively low specified voltage regulation. Measuring 150 × 151 × 145 mm and weighing 14.2 kg, it is suitable for integration into appropriately designed industrial electrical equipment, with an associated EPN 4 enclosure reference. Its 1500 VA rating makes it particularly relevant to control systems with substantial combined auxiliary AC power requirements.
Key Advantages
- 1500 VA rated apparent power for industrial control and auxiliary AC circuits.
- 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 electrical supplies.
- Dual 24 V AC secondary windings for flexible output configurations.
- 24 V AC parallel output for compatible industrial control equipment.
- 48 V AC series output for higher-voltage auxiliary and control circuits.
- 4% voltage regulation to help limit secondary voltage variation between no-load and rated-load conditions.
- Class E insulation for industrial transformer applications.
- Provides electrical isolation between primary and secondary windings.
- 1500 VA total capacity for appropriately rated control power applications.
- Practical 150 × 151 × 145 mm dimensions for industrial control cabinet integration.
- Associated EPN 4 enclosure reference.
Key Features
- ETE WV wide-input-voltage control transformer series.
- Single-phase transformer construction.
- 1500 VA total rated apparent power.
- Primary terminal markings: 0/380/400/420/440/460/480 V.
- Nominal primary connections: 380 V, 400 V, 420 V, 440 V, 460 V and 480 V AC.
- Secondary terminal markings: 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: E.
- Voltage regulation: 4%.
- Electrical isolation between primary and secondary circuits.
- Suitable for compatible industrial control and auxiliary AC power applications.
- Dimensions: 150 × 151 × 145 mm.
- Weight: 14.2 kg.
- Enclosure reference: EPN 4.
High-Capacity 24 V and 48 V AC Control Power for Industrial Automation
The ETE WV1500P7S7 transforms a selected industrial AC input voltage into a lower secondary voltage suitable for compatible control equipment. Its six nominal primary voltage connections support installations using 380 V, 400 V, 420 V, 440 V, 460 V or 480 V AC supplies. This flexibility can simplify transformer selection across machinery and electrical installations with different nominal supply voltages, provided the correct primary terminal is selected and connected according to ETE's instructions.
On the secondary side, the transformer incorporates two separate 24 V AC windings. When correctly connected in parallel, the windings provide 24 V AC. When connected in series with additive polarity, they provide 48 V AC. Parallel connections require matching winding polarity, and incorrect connections can cause damaging circulating currents or an unsuitable output voltage. The manufacturer's terminal identification and wiring instructions must be followed before energising the transformer.
The 1500 VA rating represents the transformer's total rated apparent power, rather than a separate 1500 VA allowance for each secondary winding. This capacity makes the WV1500P7S7 relevant to industrial control systems with substantial combined AC power demands, provided connected equipment remains within the transformer's permitted continuous and starting-load ratings. Its specified 4% voltage regulation should also be considered when selecting voltage-sensitive control equipment, as the secondary voltage can vary with loading.
With Class E insulation, a 14.2 kg weight and an associated EPN 4 enclosure reference, the WV1500P7S7 is intended for integration into appropriately engineered electrical installations. Suitable mechanical support is particularly important for a transformer of this weight. The installation should also incorporate appropriate circuit protection, ventilation, earthing, conductor sizing and safe access for inspection and maintenance.
Typical Applications
- 24 V AC industrial control power supplies.
- 48 V AC auxiliary control circuits.
- Industrial machinery control panels and electrical cabinets.
- Multiple compatible contactor and relay coil circuits.
- Industrial motor starter and switching control systems.
- Machine tools and manufacturing equipment.
- Conveyor and material handling systems.
- Packaging and processing machinery.
- Industrial signalling and indication equipment.
- OEM machinery and factory automation installations.
- Industrial control panel manufacturing and refurbishment.
- Compatible transformer replacement and machinery upgrade projects.
- Control installations requiring a total transformer capacity of 1500 VA.
