Why Choose the ETE MV100P2S1 100 VA Multi-Voltage Control Transformer?
The ETE MV100P2S1 is a compact 100 VA single-phase multi-voltage control transformer designed for industrial electrical control panels, machinery and automation systems requiring selectable low-voltage AC outputs. Part of the ETE MV multi-voltage control transformer range, this model features 20/0/380/420 V primary terminals and 0/55/110 V secondary terminals, providing flexible connection options for industrial control applications.
The MV100P2S1 supports nominal 55 V AC or 110 V AC secondary output connections, making it suitable for compatible contactor coils, control relays, signalling devices and other AC-operated industrial components. Its primary winding incorporates connections marked 380 V and 420 V, together with a 20 V primary adjustment tap. The precise relationship between these primary terminals must be confirmed using ETE's approved connection information before installation.
Rated at 100 VA, the transformer features Class E insulation and 12% voltage regulation. Its compact dimensions of 85 × 70 × 93 mm and weight of 1.5 kg make it a practical choice for electrical cabinets where installation space is limited. The specified compatible enclosure references are ETE EPH 1 or EPN 1.
Whether specifying a transformer for a new industrial control panel, replacing a compatible existing unit or standardising equipment around selectable AC control voltages, the ETE MV100P2S1 offers a versatile combination of primary voltage selection, tapped secondary output and compact construction.
Key Advantages
- Multi-voltage primary arrangement: Incorporates 20/0/380/420 V primary terminals for industrial supply voltage selection.
- Selectable secondary outputs: Provides nominal 55 V AC or 110 V AC connections for compatible control equipment.
- 100 VA apparent power rating: Suitable for appropriately sized industrial control circuits.
- 20 V primary adjustment tap: Provides an additional winding connection, with the correct arrangement to be confirmed with ETE.
- Flexible equipment design: Reduces the need to specify separate transformers for different supported voltage connections.
- Class E insulation: Provides a defined electrical insulation classification.
- 12% voltage regulation: Enables designers to account for secondary voltage variation under changing load conditions.
- Compact footprint: Measures only 85 × 70 × 93 mm.
- Manageable installation weight: Weighs approximately 1.5 kg.
- Compatible enclosure options: Specified for ETE EPH 1 or EPN 1 enclosure arrangements.
- Industrial control versatility: Suitable for compatible relays, contactors, signalling circuits and machine control equipment.
- Established product range: Listed in the ETE stock control transformer range, March 2026.
Key Features
- Manufacturer: ETE.
- Model: MV100P2S1.
- Product series: MV multi-voltage control transformers.
- Transformer type: Single-phase industrial control transformer.
- Rated apparent power: 100 VA.
- Primary terminal markings: 20/0/380/420 V.
- Primary voltage connections: 380 V and 420 V terminals, with an additional 20 V adjustment tap.
- Primary connection precaution: Confirm the precise function and wiring of the 20 V adjustment tap with ETE.
- Secondary terminal markings: 0/55/110 V.
- Secondary output options: 55 V AC or 110 V AC.
- Calculated nominal secondary current at 110 V: Approximately 0.91 A.
- Insulation classification: Class E.
- Voltage regulation: 12%.
- Length: 85 mm.
- Width: 70 mm.
- Height: 93 mm.
- Weight: 1.5 kg.
- Compatible enclosure references: EPH 1 or EPN 1.
- Application: AC control voltage transformation in industrial electrical systems.
Reliable Multi-Voltage AC Control Power for Industrial Machinery
The ETE MV100P2S1 is intended for electrical control systems where the available supply and the required control voltage must be considered together. Its primary terminal arrangement of 20/0/380/420 V offers flexibility for installations involving higher-voltage industrial AC supplies, while its tapped secondary winding provides nominal 55 V AC and 110 V AC output connections.
The primary terminals include a 20 V adjustment connection. This feature should not be interpreted as a standalone 20 V primary supply input or wired by assumption. The permitted terminal combinations and the intended adjustment function must be verified using the manufacturer's connection diagram or by contacting ETE directly. Correct primary selection is essential to obtaining the intended secondary voltage and avoiding transformer damage.
On the secondary side, the 0/55/110 V terminal arrangement provides a tapped winding. A nominal 55 V AC output can be selected using the appropriate terminals, while the full 110 V AC output is available across the specified winding connections. The presence of an intermediate 55 V tap should not automatically be taken to establish a particular protective earthing arrangement; any centre-point connection must be assessed for the intended installation.
The transformer's 100 VA apparent power rating corresponds to a theoretical full-load secondary current of approximately 0.91 A at 110 V AC. Dividing the same apparent power by 55 V gives approximately 1.82 A, but this is a mathematical equivalent rather than confirmation of the permissible current from the 55 V tap. Individual winding section ratings and any simultaneous loading restrictions must be confirmed before designing a circuit that uses the intermediate tap.
The specified 12% voltage regulation is an important consideration when selecting compatible control equipment. Secondary voltage may vary with load, particularly where electromagnetic components such as contactors and solenoids have a higher initial energisation demand than their normal operating consumption. Designers should consider the total steady-state VA, simultaneous switching demands and the voltage tolerances of connected equipment.
With Class E insulation, dimensions of 85 × 70 × 93 mm and a weight of 1.5 kg, the MV100P2S1 is suited to compact industrial control installations. The specified EPH 1 or EPN 1 enclosure references provide options when a compatible protective housing is required. Final installation should account for suitable mounting, ventilation, conductor sizing, primary and secondary circuit protection and protective earthing as applicable.
The MV100P2S1 provides AC voltage transformation; it is not a regulated DC power supply. Where equipment requires DC control voltage, appropriate rectification and voltage regulation must be provided separately. Installation and commissioning should be undertaken by a suitably qualified person using the correct ETE terminal connection information.
Typical Applications
- Industrial control panels requiring selectable 55 V AC or 110 V AC control supplies.
- Machinery control systems using compatible multi-voltage transformer connections.
- OEM machinery manufacturing and electrical panel assembly.
- Contactor and electromagnetic relay control circuits.
- Motor starter and machine control panels.
- Industrial signalling and indication circuits.
- Compatible AC-operated solenoids and control devices.
- Automation equipment requiring transformer-derived AC control power.
- Packaging machinery and conveyor control systems.
- Industrial maintenance and refurbishment projects.
- Replacement of compatible 100 VA multi-voltage control transformers.
- Compact electrical cabinets requiring flexible secondary voltage selection.
