ETE MV2500P2S1 Multi-Voltage Control Transformer 2500VA 20/0/380/420V to 0/55/110V

Why Choose the ETE MV2500P2S1 2500 VA Multi-Voltage Control Transformer?

The ETE MV2500P2S1 is a high-capacity 2500 VA (2.5 kVA) single-phase multi-voltage control transformer designed for industrial electrical control panels, machinery and automation systems requiring dependable AC voltage transformation. 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 nominal 55 V AC or 110 V AC output connections for compatible industrial control equipment.

With a substantial 2500 VA apparent power rating, the MV2500P2S1 is particularly suitable for larger industrial control circuits containing multiple contactors, electromagnetic relays, signalling devices, solenoids and other AC-operated components. Its higher capacity makes it a practical choice for installations where smaller control transformers cannot accommodate the total connected apparent power or anticipated operating demands.

The primary winding incorporates terminals marked 380 V and 420 V, together with a 20 V primary adjustment tap. This multi-terminal arrangement provides connection flexibility for compatible industrial AC supplies. However, the precise purpose of the adjustment terminal and the permitted primary connection combinations must be confirmed with ETE before installation.

On the secondary side, the 0/55/110 V tapped winding provides nominal 55 V AC or 110 V AC output connections. This arrangement allows the transformer to serve different control voltage requirements, subject to the manufacturer's approved connection instructions and applicable winding and tap loading limits.

Featuring Class E insulation and 3% voltage regulation, the MV2500P2S1 provides defined electrical characteristics for industrial transformer selection. Its dimensions of 192 × 161 × 185 mm and weight of 24 kg should be considered when designing mounting arrangements and electrical cabinet layouts. The specified compatible enclosure reference is ETE EPN 5.

Listed in the ETE Stock Control Transformer Range, March 2026, the MV2500P2S1 is a practical solution for electrical panel builders, machinery manufacturers and maintenance engineers requiring a higher-capacity single-phase transformer with selectable AC control voltage connections.

Key Advantages

• 2500 VA (2.5 kVA) rated capacity: Provides substantial apparent power for appropriately sized industrial AC control circuits.
• Multi-voltage primary arrangement: Features 20/0/380/420 V primary terminals for compatible industrial AC supply connections.
• Selectable secondary voltage: Provides nominal 55 V AC or 110 V AC output connections.
• 20 V primary adjustment tap: Offers an additional winding connection, with the correct configuration to be confirmed with ETE.
• Tapped secondary winding: Supports different nominal AC control voltage requirements within one transformer model.
• 3% voltage regulation: Provides a specified regulation characteristic for assessing secondary voltage variation under load.
• Class E insulation: Offers a defined insulation classification for industrial transformer applications.
• Higher control power capacity: Suitable for systems containing multiple compatible AC control components.
• Flexible industrial integration: Supports machinery control, automation and electrical panel applications.
• Defined dimensions: Measures 192 × 161 × 185 mm for installation and enclosure planning.
• Defined installation weight: Weighs 24 kg, allowing mechanical support requirements to be considered during design.
• Compatible enclosure reference: ETE EPN 5.
• Industrial application versatility: Suitable for compatible relays, contactors, motor control circuits and AC-operated equipment.
• Established product range: Listed in the ETE stock control transformer range, March 2026.

Key Features

• Manufacturer: ETE.
• Manufacturer part number: MV2500P2S1.
• Product series: MV multi-voltage control transformers.
• Transformer type: Single-phase industrial control transformer.
• Rated apparent power: 2500 VA (2.5 kVA).
• Primary terminal arrangement: 20/0/380/420 V.
• Primary voltage terminal markings: 380 V and 420 V.
• Primary adjustment provision: 20 V tap; confirm connections with ETE.
• Secondary terminal arrangement: 0/55/110 V.
• Nominal secondary output options: 55 V AC or 110 V AC.
• Calculated nominal secondary current at 110 V: Approximately 22.73 A, based on the 2500 VA rating.
• 55 V tap loading: Subject to the manufacturer's permitted winding section current rating.
• Insulation class: E.
• Voltage regulation: 3%.
• Length: 192 mm.
• Width: 161 mm.
• Height: 185 mm.
• Weight: 24 kg.
• Compatible enclosure reference: EPN 5.

Reliable 2.5 kVA Control Power with Selectable 55 V or 110 V AC Outputs

The ETE MV2500P2S1 provides a high-capacity solution for industrial electrical installations requiring selectable 55 V AC or 110 V AC control voltage. Its 20/0/380/420 V primary arrangement and 0/55/110 V secondary winding make it suitable for control panel designs where a compatible industrial AC supply must be transformed to a lower-voltage control circuit.

The primary winding includes terminals marked 380 V and 420 V, together with a 20 V adjustment tap. These markings identify the available winding connections but do not independently establish every permissible supply voltage arrangement. The 20 V adjustment terminal should not be treated as an independent low-voltage supply input. The correct primary terminal combinations must be verified using ETE's approved connection information before the transformer is energised.

The secondary winding incorporates an intermediate 55 V tap and a full 110 V connection. This provides nominal secondary voltage options for compatible industrial control equipment. Where the transformer is being considered for a centre-tapped 110 V control circuit, the intended connection arrangement and any centre-point earthing requirements should be verified against the manufacturer's documentation.

At the total rated apparent power of 2500 VA, the calculated nominal full-load current at 110 V AC is approximately 22.73 A. This value is obtained by dividing the transformer rating by the nominal full secondary voltage. The permissible current through the intermediate 55 V winding section has not been specified separately and must be confirmed with ETE before applying a substantial load to that tap.

The specified 3% voltage regulation is an important characteristic for industrial control circuits containing electromagnetic devices. Contactors, relays and solenoids can draw greater apparent power during energisation than during normal operation, potentially causing temporary changes in secondary voltage. Electrical designers should therefore consider the total steady-state load, simultaneous switching demands and acceptable operating voltage range of connected equipment.

With a rated capacity of 2.5 kVA, the MV2500P2S1 is particularly relevant to larger control systems containing multiple compatible AC devices. Transformer selection should consider the aggregate apparent power requirement, permissible winding and tap loading, and any additional capacity needed for equipment energisation.

The MV2500P2S1 features Class E insulation, dimensions of 192 × 161 × 185 mm and a weight of 24 kg. These characteristics should be considered when selecting mounting arrangements, mechanical supports and enclosure space. The specified compatible enclosure reference is ETE EPN 5.

The transformer provides AC voltage transformation rather than regulated DC output. Equipment requiring DC control voltage will need appropriate additional conversion components. Installation should account for correct primary tap selection, suitable primary and secondary circuit protection, conductor sizing, secure mounting, ventilation and protective earthing where applicable.

Typical Applications

• Industrial electrical control panels requiring selectable 55 V AC or 110 V AC supplies.
• Large machinery control systems using compatible industrial primary voltage connections.
• OEM machinery and industrial electrical panel manufacturing.
• Higher-capacity contactor and electromagnetic relay control circuits.
• Motor starter panels and machine control systems.
• Industrial signalling and indication circuits.
• Compatible AC-operated solenoid valves and actuators.
• Automation equipment requiring transformer-derived AC control power.
• Packaging machinery and conveyor control systems.
• Industrial process control installations.
• Electrical maintenance and refurbishment projects.
• Replacement of compatible 2500 VA multi-voltage control transformers.