Why Choose the ETE MV150P1S1 150 VA Multi-Voltage Control Transformer?
The ETE MV150P1S1 is a versatile 150 VA single-phase multi-voltage control transformer designed for industrial electrical control circuits requiring flexible primary voltage connections and selectable 55 V AC or 110 V AC secondary outputs. Manufactured by Eastern Transformers & Equipment (ETE), this transformer belongs to the ETE MV Multi-Voltage Series, providing a practical power supply solution for electrical control panels, machinery, automation equipment and OEM installations.
Featuring a 10/0/220/240 V primary terminal arrangement and 0/55/110 V secondary terminals, the MV150P1S1 offers multiple connection options for industrial control applications. Its secondary winding arrangement is also described by ETE as 55/0/55 V (0/55/110 V), allowing the appropriate output connections to be selected for the intended circuit.
The transformer has Class E insulation, 10% voltage regulation and a 150 VA rated capacity. Its compact dimensions of 96 × 76 × 103 mm and weight of 2.3 kg make it suitable for integration into industrial control cabinets. The specified enclosure references are EPH 2 or EPN 1.
Important connection note: The primary includes a 10 V adjustment tap. The exact primary connections and intended adjustment arrangement must be confirmed with ETE before installation. The terminal markings should not be interpreted as permission to apply arbitrary voltages or connect multiple supplies simultaneously.
Key Advantages
- Multi-voltage primary arrangement: Features 10/0/220/240 V primary terminals for flexible supply connection options.
- Selectable secondary voltage: Provides 55 V AC or 110 V AC output connection options.
- 150 VA rated capacity: Suitable for appropriately sized industrial control and signalling circuits.
- 10 V primary adjustment tap: Offers an additional primary connection feature, subject to confirmation of the correct arrangement with ETE.
- Class E insulation: Provides a defined insulation classification for transformer operation.
- 10% voltage regulation: Supplies a specified regulation characteristic for control circuit design.
- Compact dimensions: Measures just 96 × 76 × 103 mm.
- Manageable weight: Weighs 2.3 kg for installation within suitable electrical panels.
- Continuous-rated construction: Designed for industrial control circuit operation.
- IP20 touch-proof terminals: Help reduce accidental contact with terminal connections.
- Class H varnish impregnation: Supports durable winding construction.
- Protective core earth connection: Supports appropriate electrical earthing arrangements.
- DIN rail mounting option: Offers additional installation flexibility for compatible mounting arrangements.
- Enclosure compatibility: Specified enclosure references EPH 2 or EPN 1.
Key Features
- ETE MV Multi-Voltage Series control transformer.
- 150 VA rated apparent power.
- Single-phase transformer configuration.
- 10/0/220/240 V primary terminal arrangement.
- 10 V primary adjustment tap.
- 0/55/110 V secondary terminal arrangement.
- 55/0/55 V secondary winding configuration.
- Selectable 55 V AC or 110 V AC secondary output connections.
- 50/60 Hz operating frequency.
- Class E insulation system.
- 10% specified voltage regulation.
- Continuous-rated industrial control transformer.
- IP20 touch-proof electrical terminals.
- Class H varnish-impregnated windings.
- Protective core earth connection.
- Designed to EN 61558-1.
- Specified ambient temperature range of −10 to +35 °C.
- DIN rail mounting option.
- 96 × 76 × 103 mm overall dimensions.
- 2.3 kg product weight.
- EPH 2 or EPN 1 enclosure references.
Flexible Primary Connections with a 10 V Adjustment Tap
The ETE MV150P1S1 multi-voltage transformer incorporates a 10/0/220/240 V primary terminal arrangement, providing greater connection flexibility than a transformer with a single fixed primary voltage. This configuration is particularly useful for electrical panel builders and OEM equipment manufacturers working with industrial control systems that require different nominal primary voltage connections.
The primary arrangement includes a 10 V adjustment tap. This tap is a specific feature of the P1 primary winding configuration and should only be used according to the manufacturer's wiring instructions. Confirm the exact primary terminal connections and the function of the 10 V adjustment tap with ETE before energising the transformer.
Correct primary selection is essential for obtaining the intended secondary output and avoiding incorrect excitation of the transformer winding. The supply voltage, operating frequency and connection arrangement should therefore be checked during panel design, installation and commissioning.
Selectable 55 V and 110 V Secondary Output Connections
The MV150P1S1 features a 0/55/110 V secondary terminal arrangement, also identified by ETE as 55/0/55 V (0/55/110 V). This provides access to nominal 55 V AC and 110 V AC secondary connections, offering flexibility for industrial control circuits with different voltage requirements.
At the full 110 V AC output, the transformer has a calculated secondary current of approximately 1.36 A based on its 150 VA rating. At 55 V AC, dividing the total apparent power rating by the output voltage gives a theoretical current of approximately 2.73 A; however, the permissible current from an individual 55 V tapping must be confirmed against the manufacturer's winding and loading specifications.
The transformer's 10% voltage regulation should be considered when selecting connected equipment, particularly for circuits with varying loads or contactor energisation demands. The total connected load, permissible tap loading and inrush requirements should be assessed before the transformer is selected for an installation.
Compact Construction for Industrial Electrical Control Panels
With dimensions of 96 mm in length, 76 mm in width and 103 mm in height, the ETE MV150P1S1 offers a compact footprint for industrial electrical cabinets and machinery control panels. Its 2.3 kg weight allows it to be accommodated within appropriately designed mounting arrangements.
The transformer is part of ETE's continuous-rated MV control transformer range, featuring Class E insulation, Class H varnish impregnation, IP20 touch-proof terminals and a protective core earth connection. The range is designed to EN 61558-1 and specifies an ambient operating temperature range of −10 to +35 °C.
A DIN rail mounting option is available for transformers in this size range, providing additional flexibility for panel assembly. The specified enclosure references are EPH 2 or EPN 1. Appropriate mechanical support, ventilation, protective devices and wiring arrangements should be incorporated into the complete electrical installation.
Typical Applications
- Industrial control panels requiring 55 V AC or 110 V AC control supplies.
- Electrical machinery with multi-voltage transformer requirements.
- Industrial contactor and relay control circuits.
- Motor starter and motor control assemblies.
- Factory automation and production machinery.
- OEM electrical equipment and machinery manufacturing.
- Control circuit voltage adaptation within electrical cabinets.
- Industrial switching and signalling applications.
- Panel building and electrical system integration.
- Machinery refurbishment and control transformer replacement.
- Electrical installations requiring selectable secondary voltage taps.
- Applications requiring a compact 150 VA single-phase multi-voltage control transformer.
