Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
ETE MV100P2S1 Multi-Voltage Control Transformer 100VA 20/0/380/420V to 0/55/110V
ETE MV100P2S1 is a 100 VA single-phase multi-voltage control transformer with 20/0/380/420 V primary terminals, selectable 55 V or 110 V AC secondary connections, Class E insulation, 12% voltage regulation and EPH 1 or EPN 1 enclosure compatibility.
£26.10
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.
Technical Specifications
Tick the specs you need, then view products that match.
| Rated Power (VA) | 100 VA | |
|---|---|---|
| Primary Voltage | 20/0/380/420V | |
| Secondary Voltage | 0/55/110V | |
| Phase | Single Phase | |
| Brand | ETE | |
| Manufacturer part number | MV100P2S1 | |
| Product family | MV Multi-Voltage Control Transformers | |
| Product category | Industrial Control Transformers | |
| Transformer configuration | Multi-tapped primary and secondary | |
| Number of phases | Single-phase | |
| Rated apparent power | 100 VA | |
| Primary terminal arrangement | 20/0/380/420 V | |
| Primary voltage terminal markings | 380 V and 420 V | |
| Additional primary adjustment tap | 20 V | |
| Primary wiring note | Confirm the correct 20 V adjustment tap connections with ETE before energising. | |
| Secondary terminal arrangement | 0/55/110 V | |
| Nominal secondary output options | 55 V AC or 110 V AC | |
| Calculated full-load secondary current at 110 V | Approximately 0.91 A | |
| Theoretical current equivalent at 55 V | Approximately 1.82 A, calculated from 100 VA ÷ 55 V; permissible individual tap loading requires confirmation. | |
| Calculated apparent-power current equivalent at 380 V | Approximately 0.263 A | |
| Calculated apparent-power current equivalent at 420 V | Approximately 0.238 A | |
| Insulation class | E | |
| Voltage regulation | 12% | |
| Length | 85 mm | |
| Width | 70 mm | |
| Height | 93 mm | |
| Overall dimensions (L × W × H) | 85 × 70 × 93 mm | |
| Weight | 1.5 kg | |
| Compatible enclosure reference | EPH 1 or EPN 1 | |
| Typical installation | Industrial electrical control panels and machinery cabinets | |
| Catalogue reference | ETE Stock Control Transformer Range, March 2026 |
Frequently Asked Questions
What is the ETE MV100P2S1 used for?
The ETE MV100P2S1 is a 100 VA single-phase multi-voltage control transformer designed to provide selectable 55 V AC or 110 V AC secondary connections for compatible industrial control equipment.
What are the primary terminals on the MV100P2S1?
The primary terminal markings are 20/0/380/420 V. The correct connection arrangement, particularly the function of the 20 V adjustment tap, must be confirmed with ETE.
What is the purpose of the 20 V primary adjustment tap?
The 20 V adjustment tap provides an additional primary winding connection. Its exact relationship to the 0, 380 V and 420 V terminals must be verified using ETE's approved wiring information before energising the transformer.
Can the MV100P2S1 be connected to a 400 V AC supply?
The transformer has primary terminals marked 380 V and 420 V, together with a 20 V adjustment tap. Because the exact permitted connection combinations are not established by the terminal markings alone, the correct arrangement for a nominal 400 V AC supply must be confirmed with ETE before installation.
What secondary voltages does the MV100P2S1 provide?
The secondary terminals are marked 0/55/110 V, providing nominal 55 V AC or 110 V AC connection options when wired correctly.
Is the MV100P2S1 a centre-tapped 110 V transformer?
The 0/55/110 V secondary arrangement includes an intermediate 55 V tap on the 110 V winding. Any intended centre-point earthing arrangement and suitability for a specific centre-tapped application must be confirmed from the manufacturer's connection information.
What is the rated power of the ETE MV100P2S1?
The transformer has a rated apparent power of 100 VA. The total connected load and any permitted tap-specific loading must remain within the applicable transformer ratings.
What is the calculated full-load current at 110 V?
At 100 VA and 110 V AC, the calculated nominal secondary current is approximately 0.91 A.
Can the full 100 VA rating be drawn from the 55 V tap?
Not without confirmation. Although 100 VA divided by 55 V gives a theoretical current of approximately 1.82 A, the allowable current through the individual 55 V winding section must be confirmed with ETE.
Does the MV100P2S1 provide AC or DC output?
The transformer provides AC output. It does not include a rectifier or regulated DC output stage.
What insulation class and voltage regulation does the MV100P2S1 have?
The MV100P2S1 has Class E insulation and a specified 12% voltage regulation.
What are the dimensions and weight of the MV100P2S1?
The transformer measures 85 mm long × 70 mm wide × 93 mm high and weighs 1.5 kg.
Which enclosures are compatible with the ETE MV100P2S1?
The specified enclosure references are ETE EPH 1 or EPN 1. The final enclosure arrangement should be selected according to installation and environmental requirements.
Can the MV100P2S1 be installed in an industrial control cabinet?
Yes. Its compact dimensions and multi-voltage configuration make it suitable for appropriately designed industrial control cabinets, provided the mounting, electrical protection, ventilation and connection requirements are satisfied.
Why is voltage regulation important when selecting this transformer?
The specified 12% voltage regulation indicates that the secondary voltage changes with loading. Control equipment should be selected with suitable operating voltage tolerances, particularly where contactors or solenoids produce high energisation demands.
Where should the correct primary connection diagram be obtained?
The correct wiring information should be obtained from ETE or its approved technical documentation. This is particularly important when using the 20 V primary adjustment tap and when selecting the appropriate primary connections for the available supply.
A Practical Choice for Industrial Control Panel Builders
The ETE MV100P2S1 combines a compact 100 VA transformer design with flexible primary terminals and selectable 55 V or 110 V AC secondary connections. Its Class E insulation, defined voltage regulation and compatible enclosure options make it a practical component for industrial control panel construction, machinery maintenance and electrical system refurbishment.
