Why Choose the ETE WV300P7S8 Wide-Input-Voltage Control Transformer?
The ETE WV300P7S8 is a versatile 300 VA single-phase wide-input-voltage control transformer designed for dependable AC voltage transformation in industrial machinery, electrical control panels and automation systems. Part of the ETE WV stock control transformer range, it combines multiple primary voltage connections with configurable secondary windings, making it a practical choice for control panel builders, OEM machine manufacturers and industrial maintenance engineers.
The WV300P7S8 features primary terminals marked 0/380/400/420/440/460/480 V, providing six nominal input voltage options for industrial electrical installations. Its dual 0/110/120 V secondary windings can be connected in parallel for 110 V or 120 V AC output, or in series for 220 V or 240 V AC output. This flexible arrangement allows one transformer model to accommodate several common industrial control voltage requirements.
With a rated capacity of 300 VA, Class E insulation and 8% voltage regulation, the ETE WV300P7S8 offers a balance of electrical capacity, voltage flexibility and compact construction. Measuring 120 × 100 × 120 mm and weighing 4.7 kg, it is suitable for installation in appropriately designed industrial electrical equipment, with associated EPH 3 or EPN 2 enclosure references.
Key Advantages
- 300 VA rated apparent power for industrial control and auxiliary AC circuits.
- Wide primary voltage selection covering nominal 380 V to 480 V AC supplies.
- Six primary voltage options for flexible integration into different industrial installations.
- Dual tapped secondary windings with 110 V and 120 V connections.
- 110 V or 120 V AC parallel output for compatible control equipment.
- 220 V or 240 V AC series output for higher-voltage auxiliary circuits.
- Class E insulation for industrial transformer applications.
- 8% voltage regulation to support predictable secondary voltage performance.
- Provides electrical isolation between primary and secondary windings.
- Compact 120 × 100 × 120 mm dimensions for control cabinet integration.
- Manageable 4.7 kg weight for suitably supported panel mounting.
- Associated EPH 3 or EPN 2 enclosure references.
Key Features
- ETE WV wide-input-voltage control transformer series.
- Single-phase transformer design.
- 300 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: 0/110/120 V + 0/110/120 V.
- Secondary arrangement: Two tapped 110/120 V AC windings.
- Parallel output: 110 V or 120 V AC.
- Series output: 220 V or 240 V AC.
- Insulation class: E.
- Voltage regulation: 8%.
- Suitable for dedicated industrial AC control supplies.
- Dimensions: 120 × 100 × 120 mm.
- Weight: 4.7 kg.
- Enclosure references: EPH 3 or EPN 2.
Flexible 110 V, 120 V, 220 V and 240 V AC Power for Industrial Control Systems
The ETE WV300P7S8 is designed to transform a selected industrial AC input voltage into a suitable secondary supply for compatible control equipment. Its six nominal primary voltage connections make it useful in installations operating at different supply voltages, including 380 V, 400 V, 420 V, 440 V, 460 V and 480 V AC. The correct primary terminal must be selected to match the available supply and the manufacturer's wiring instructions.
On the secondary side, the transformer incorporates two windings, each marked 0/110/120 V. When correctly connected in parallel, the corresponding winding taps provide a 110 V or 120 V AC supply. When connected in an additive series arrangement, they provide 220 V or 240 V AC. Parallel connections require matching voltage taps and winding polarity; series connections must also follow the correct polarity arrangement. All terminal wiring should be completed in accordance with ETE's instructions.
The transformer's 300 VA capacity is the total rated apparent power, not a separate 300 VA allowance for each secondary winding. This makes it suitable for supplying one or more compatible control loads, provided their combined continuous and starting requirements remain within the transformer's permitted ratings. Its specified 8% voltage regulation should be considered when selecting connected equipment, particularly where voltage tolerance is important.
With Class E insulation, a compact footprint and a 4.7 kg weight, the WV300P7S8 is suited to appropriately supported industrial control panel installations. The associated EPH 3 or EPN 2 enclosure references help identify suitable manufacturer enclosure options. Installation design should also account for electrical protection, ventilation, earthing, safe access and secure mounting.
Typical Applications
- 110 V AC industrial control circuits.
- 120 V AC machinery control supplies.
- 220 V AC auxiliary electrical circuits.
- 240 V AC industrial control equipment.
- Industrial control panels and electrical cabinets.
- Contactor and relay control circuits.
- Machine tools and production machinery.
- Conveyor and material handling equipment.
- Packaging and processing machinery.
- OEM equipment and factory automation systems.
- Industrial signalling and auxiliary electrical equipment.
- Control panel refurbishment and compatible transformer replacement projects.
