Why Choose the ETE MV500P2S1 500 VA Multi-Voltage Control Transformer?
The ETE MV500P2S1 is a 500 VA single-phase multi-voltage control transformer designed for industrial electrical control panels, machinery and automation systems requiring selectable AC control voltages. 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.
The MV500P2S1 combines a substantial 500 VA apparent power rating with a tapped secondary winding, making it a practical choice for control circuits with higher aggregate electrical loads. Its primary winding incorporates terminals marked 380 V and 420 V, together with a 20 V primary adjustment tap. The precise function and permitted connection combinations of this adjustment tap must be confirmed with ETE before installation.
The secondary winding features a 0/55/110 V terminal arrangement, allowing nominal 55 V AC or 110 V AC connections according to the intended control circuit. This flexibility is useful when specifying transformers for compatible contactors, electromagnetic relays, signalling devices, solenoids and other AC-operated industrial equipment.
Featuring Class E insulation and 8% voltage regulation, the ETE MV500P2S1 provides defined electrical characteristics for industrial transformer selection. Its dimensions of 120 × 120 × 120 mm and weight of 6.2 kg support integration into suitably designed electrical cabinets. The specified compatible enclosure references are ETE EPH 3 or EPN 2.
Key Advantages
- 500 VA rated apparent power: Provides capacity for appropriately sized industrial control circuits and multiple compatible AC control devices.
- Multi-voltage primary connections: Incorporates 20/0/380/420 V terminals for flexible industrial supply arrangements.
- Selectable secondary output: Supports nominal 55 V AC or 110 V AC connections.
- 20 V primary adjustment tap: Provides an additional winding connection, with the correct configuration to be confirmed with ETE.
- Tapped secondary winding: Allows different nominal control voltage connections within one transformer model.
- Class E insulation: Provides a defined insulation classification for industrial electrical applications.
- 8% voltage regulation: Offers a specified regulation characteristic for evaluating secondary voltage variation under load.
- Flexible control panel integration: Suitable for compatible machinery control and automation circuits.
- Compact dimensions: Measures 120 × 120 × 120 mm.
- Defined installation weight: Weighs 6.2 kg for mounting and enclosure planning.
- Compatible enclosure options: Specified for ETE EPH 3 or EPN 2.
- Industrial application versatility: Suitable for appropriately rated relays, contactors, signalling circuits and AC-operated actuators.
- Established product range: Listed in the ETE stock control transformer range, March 2026.
Key Features
- Manufacturer: ETE.
- Manufacturer part number: MV500P2S1.
- Product series: MV multi-voltage control transformers.
- Transformer type: Single-phase industrial control transformer.
- Rated apparent power: 500 VA.
- 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 4.55 A.
- 55 V tap loading: Subject to the manufacturer's permitted winding section current rating.
- Insulation class: E.
- Voltage regulation: 8%.
- Length: 120 mm.
- Width: 120 mm.
- Height: 120 mm.
- Weight: 6.2 kg.
- Compatible enclosure references: EPH 3 or EPN 2.
Reliable 500 VA Control Power with Selectable 55 V or 110 V AC Outputs
The ETE MV500P2S1 is designed for industrial electrical installations where the available AC supply must be transformed to a suitable control voltage. Its 20/0/380/420 V primary arrangement and 0/55/110 V secondary winding provide flexibility for control panel builders and machinery manufacturers working with compatible industrial electrical systems.
The primary winding includes terminals marked 380 V and 420 V, together with a 20 V adjustment tap. This adjustment terminal should not be treated as a standalone 20 V supply connection. The exact permitted terminal combinations and intended adjustment function 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 selectable nominal secondary voltages for compatible industrial control equipment. Where the transformer is being considered for a centre-tapped 110 V application, the intended connection arrangement and any centre-point earthing requirements must be checked against the manufacturer's documentation.
The 500 VA apparent power rating corresponds to a calculated nominal full-load current of approximately 4.55 A at 110 V AC. This is derived by dividing the transformer rating by the nominal full secondary voltage. The permitted current through the intermediate 55 V winding section has not been specified separately and must be confirmed before loading that tap. The full 500 VA rating should not automatically be assumed to be available independently from the 55 V connection.
The specified 8% voltage regulation is an important consideration when selecting control transformers for circuits containing electromagnetic loads. Contactors, relays and solenoids can have different apparent power demands during energisation and normal operation. Electrical designers should consider the total steady-state load, simultaneous switching requirements and the acceptable voltage range of connected equipment.
With Class E insulation, dimensions of 120 × 120 × 120 mm and a weight of 6.2 kg, the MV500P2S1 can be incorporated into appropriately designed industrial control cabinets. Its specified EPH 3 or EPN 2 enclosure references provide compatible housing options where additional physical protection is required.
The MV500P2S1 provides AC voltage transformation rather than regulated DC output. Equipment requiring DC control voltage will need suitable additional conversion components. Installation should account for correct primary tap selection, suitable circuit protection, conductor sizing, mechanical mounting, ventilation and protective earthing where applicable.
Typical Applications
- Industrial electrical control panels requiring selectable 55 V AC or 110 V AC supplies.
- Machinery control systems using compatible industrial primary voltage connections.
- OEM machinery and electrical panel manufacturing.
- 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 500 VA multi-voltage control transformers.
