Why Choose the ETE MV750P1S1 750 VA Multi-Voltage Control Transformer?
The ETE MV750P1S1 is a 750 VA single-phase multi-voltage control transformer designed for industrial control panels, electrical machinery and automation systems requiring reliable AC control power. Part of the ETE MV Multi-Voltage Series, it features 10/0/220/240 V primary terminals and 0/55/110 V secondary terminals, providing flexible voltage connections for industrial electrical installations.
With nominal 220 V and 240 V primary connections and selectable 55 V or 110 V AC secondary taps, the MV750P1S1 is suitable for appropriately rated control circuits, including industrial relays, contactors, signalling equipment and machinery controls.
The transformer combines a 750 VA rated capacity, Class E insulation and 4% voltage regulation. Its dimensions are 150 × 108 × 145 mm, with a weight of 7.6 kg and a specified enclosure reference of EPN 3.
Important installation note: The primary winding incorporates a 10 V adjustment tap. Confirm the exact terminal connections and adjustment method with ETE before installation or energisation.
Key Advantages
- 750 VA rated capacity: Provides substantial apparent power for appropriately sized industrial control circuits.
- Multi-voltage primary: Features 10/0/220/240 V terminals for manufacturer-specified AC supply arrangements.
- Selectable secondary voltage: Provides nominal 55 V AC or 110 V AC output connections.
- Tapped secondary winding: Supports different control voltage requirements using one transformer model.
- 10 V primary adjustment tap: Offers an additional connection feature, subject to ETE confirmation.
- 4% voltage regulation: Provides a defined voltage regulation characteristic for industrial control circuit design.
- Class E insulation: Offers a specified insulation classification for transformer operation.
- Industrial versatility: Suitable for compatible relays, contactors and automation equipment.
- Compact panel installation: Measures 150 × 108 × 145 mm.
- Specified enclosure reference: EPN 3.
Key Features
- ETE MV Multi-Voltage Series control transformer.
- 750 VA rated apparent power.
- Single-phase transformer configuration.
- 10/0/220/240 V primary terminal arrangement.
- 220 V and 240 V primary terminal markings.
- 10 V primary adjustment tap requiring connection confirmation with ETE.
- 0/55/110 V secondary terminal arrangement.
- Nominal 55 V AC or 110 V AC secondary output taps.
- Class E insulation.
- 4% specified voltage regulation.
- 150 mm length.
- 108 mm width.
- 145 mm height.
- 7.6 kg product weight.
- EPN 3 enclosure reference.
- Listed in the ETE Stock Control Transformer Range, March 2026.
Multi-Voltage Primary Connections and 10 V Adjustment Tap
The ETE MV750P1S1 features a 10/0/220/240 V primary terminal arrangement, providing flexibility for industrial electrical systems using the manufacturer's specified primary supply connections.
The terminals marked 220 V and 240 V support corresponding nominal supply arrangements when connected according to ETE's approved wiring diagram. The additional 10 V terminal forms part of the primary adjustment arrangement.
This configuration is useful for electrical panel builders and machinery manufacturers producing control systems for different nominal AC supply voltages.
Installation requirement: Confirm the exact 10 V primary adjustment tap connections with ETE before energising the transformer. Do not infer an adjustment method from the terminal markings alone.
Selectable 55 V and 110 V AC Secondary Output
The MV750P1S1 incorporates 0/55/110 V secondary terminals, providing nominal 55 V AC and 110 V AC connections for compatible industrial control equipment.
110 V AC Secondary Connection
When connected for nominal 110 V AC output, the transformer's 750 VA rating corresponds to a calculated secondary current of approximately 6.82 A.
This configuration is suitable for appropriately rated industrial control circuits, including contactors, relays, switching equipment and machinery control devices.
55 V AC Secondary Tap
The intermediate secondary terminal provides a nominal 55 V AC output connection, supporting compatible equipment requiring a lower control voltage.
Dividing the transformer's 750 VA rating by 55 V produces a theoretical current of approximately 13.64 A. However, this calculation does not establish the permissible loading of the individual 55 V winding section.
Engineering consideration: Confirm the maximum allowable 55 V tap current and any simultaneous loading restrictions with ETE before designing the control circuit.
4% Voltage Regulation for Industrial Control Applications
The MV750P1S1 has a specified 4% voltage regulation characteristic. Voltage regulation describes the change in secondary voltage as the electrical load varies under the relevant operating conditions.
This characteristic is important when selecting control equipment with defined voltage tolerances, particularly industrial contactors, relays and switching devices that may impose short-duration inrush loads.
The 750 VA rating should be considered alongside the connected equipment's steady-state consumption, energisation requirements and permissible voltage range. The rating must not be assumed to apply independently to every secondary tap.
Industrial Construction and Installation Considerations
The ETE MV750P1S1 measures 150 mm in length, 108 mm in width and 145 mm in height, with a specified weight of 7.6 kg. These dimensions and weight should be considered when planning control panel layouts and selecting suitable mounting supports.
The transformer has Class E insulation and a specified enclosure reference of EPN 3. The complete installation should provide appropriate mechanical support, ventilation and protection for the intended operating environment.
Primary and secondary circuit protection, conductor sizing, protective earthing and terminal connections should be designed in accordance with applicable electrical installation requirements and ETE's technical instructions.
Before commissioning, verify the primary adjustment tap arrangement, selected secondary voltage and permissible winding loading using the manufacturer's approved documentation.
Typical Applications
- Industrial control panels requiring nominal 110 V AC control power.
- Control circuits requiring a nominal 55 V AC secondary tap.
- Industrial contactor and relay control systems.
- Motor starter and motor control assemblies.
- Factory automation and production machinery.
- OEM machinery and electrical equipment manufacturing.
- Industrial switching and signalling circuits.
- Electrical control voltage adaptation from nominal 220 V or 240 V AC supplies.
- Electrical panel building and control cabinet assembly.
- Machinery refurbishment and replacement transformer installations.
- Industrial electrical maintenance and system integration.
- Applications requiring a 750 VA single-phase multi-voltage control transformer.
