Why Choose the ETE WV100P7S8 100 VA Wide-Input-Voltage Control Transformer?
The ETE WV100P7S8 is a compact and reliable 100 VA single-phase wide-input-voltage control transformer designed to provide flexible voltage transformation for industrial control circuits, electrical panels and automation equipment. As part of the ETE WV wide-input-voltage control transformer series, it is particularly suitable for panel builders, electrical engineers and OEM manufacturers requiring a versatile control power solution for installations with different primary supply voltages.
Featuring 0/380/400/420/440/460/480 V primary terminals, the WV100P7S8 accommodates a wide selection of industrial supply voltages through its multiple primary tapping points. Its two independent 0/110/120 V secondary windings can be connected in parallel to provide 110 V or 120 V, or connected in series to provide 220 V or 240 V, offering excellent flexibility for different control circuit requirements.
With a rated capacity of 100 VA, Class E insulation and 12% voltage regulation, the ETE WV100P7S8 provides a practical solution for low-power industrial control applications. Its compact dimensions of 85 × 70 × 93 mm and weight of approximately 1.5 kg make it suitable for integration into electrical control panels where installation space is limited. The specified enclosure options are EPH 1 or EPN 1.
Key Advantages
- Compact 100 VA single-phase control transformer designed for industrial electrical applications.
- Wide primary voltage selection from 380 V to 480 V AC using dedicated primary terminals.
- Dual 0/110/120 V secondary windings provide flexible output configurations.
- Parallel secondary connection supports 110 V or 120 V AC control circuits.
- Series secondary connection supports 220 V or 240 V AC control circuits.
- Class E insulation supports reliable transformer operation within the specified thermal limits.
- 12% voltage regulation provides a defined performance characteristic for control circuit design.
- Compact 85 × 70 × 93 mm construction simplifies installation in space-constrained electrical panels.
- Lightweight 1.5 kg design supports straightforward mounting and handling.
- EPH 1 or EPN 1 enclosure references provide options for suitable installation arrangements.
- Multiple primary and secondary configurations can reduce the need for different transformer models across compatible installations.
Key Features
- ETE WV wide-input-voltage control transformer series.
- 100 VA rated apparent power.
- Single-phase transformer construction.
- Primary terminal configuration: 0/380/400/420/440/460/480 V.
- Primary voltage selections: 380, 400, 420, 440, 460 or 480 V AC.
- Secondary winding 1: 0/110/120 V.
- Secondary winding 2: 0/110/120 V.
- Parallel secondary output: 110 V or 120 V AC.
- Series secondary output: 220 V or 240 V AC.
- Insulation class: E.
- Voltage regulation: 12%.
- Overall length: 85 mm.
- Overall width: 70 mm.
- Overall height: 93 mm.
- Transformer weight: 1.5 kg.
- Enclosure references: EPH 1 or EPN 1.
- Multiple winding connections for adaptable industrial control power distribution.
- Designed for integration into appropriately protected electrical control equipment.
Reliable Wide-Input-Voltage Transformation for Industrial Control Circuits
Industrial control transformers provide a dedicated secondary voltage supply for electrical control equipment by transforming the applied primary voltage through electromagnetic induction. The ETE WV100P7S8 is designed for installations where the available primary supply may vary between standard industrial voltage levels. Its multiple primary terminals allow the installer to select the appropriate connection for a nominal supply of 380, 400, 420, 440, 460 or 480 V AC.
The transformer's two 0/110/120 V secondary windings provide additional installation flexibility. When correctly connected in parallel, the windings provide a 110 V or 120 V output arrangement with the available secondary current shared between the windings. Alternatively, the windings can be connected in series to obtain 220 V or 240 V for compatible control equipment. Parallel connections must use matching voltage taps and correct winding polarity, while series connections must follow the manufacturer's approved wiring arrangement.
With a rated output of 100 VA, the WV100P7S8 is suitable for relatively low-power control circuits, including relay systems, contactor controls and industrial signalling equipment. Its specified 12% voltage regulation should be considered when selecting connected loads, particularly where equipment requires a tightly controlled operating voltage. Class E insulation and compact construction support dependable operation when the transformer is correctly installed, adequately ventilated and operated within its rated capacity.
Typical Applications
- Industrial electrical control panels and automation cabinets.
- 110 V AC industrial control circuits.
- 120 V AC control power applications.
- 220 V and 240 V AC control circuits using series-connected secondary windings.
- Industrial relay and contactor control systems.
- Motor control panels and machine control circuits.
- OEM machinery with different primary supply voltage requirements.
- Factory automation and manufacturing equipment.
- Industrial signalling and control equipment.
- Electrical panel building and system integration.
- Control circuit installations requiring flexible primary voltage selection.
- Replacement or upgrade projects requiring a compatible 100 VA multi-tap transformer.
