Why Choose the ETE SV400P5S6 400 VA Single-Voltage Control Transformer?
The ETE SV400P5S6 is a robust and reliable 400 VA single-phase control circuit transformer designed to provide a dependable 24 V AC output from a 415 V AC input. Manufactured by Eastern Transformers & Equipment (ETE), this transformer belongs to the established ETE SV single-voltage control transformer series, developed for industrial electrical control panels, machinery and automation systems requiring reliable low-voltage AC power.
The SV400P5S6 features a single primary voltage connection with 0/415 V terminals and a secondary connection with 0/24 V terminals. Its continuous-duty construction makes it suitable for supplying control relays, contactor coils, signalling devices and other industrial equipment requiring a dedicated 24 V AC control supply. The SV series incorporates IP20 touch-proof terminals, Class H varnish impregnation and a core earth connection to support dependable electrical installation.
With a rated apparent power of 400 VA, Class E insulation and 8% voltage regulation, the SV400P5S6 provides reliable voltage transformation for industrial control applications. Its compact dimensions of 120 × 108 × 120 mm and weight of 5.5 kg make it suitable for installation within electrical control cabinets, with compatible enclosure references EPH 3 or EPN 2.
Key Advantages
- 400 VA continuous-rated control transformer designed for industrial electrical applications.
- 415 V AC primary to 24 V AC secondary voltage transformation.
- Single-phase construction suitable for machinery and automation control circuits.
- Class E insulation system designed in accordance with EN 61558-1.
- 8% voltage regulation for predictable secondary voltage performance under changing loads.
- IP20 touch-proof terminals help reduce accidental contact with electrical connections.
- Class H varnish impregnation supports durable transformer construction.
- Integrated core earth connection for protective earthing.
- 400 VA output capacity suitable for multiple control components within the rated load.
- Compact design suitable for electrical control panel integration.
- Compatible with ETE EPH 3 or EPN 2 enclosure references.
- Manufactured in the UK as part of the established ETE stock control transformer range.
Key Features
- ETE SV single-voltage control transformer series.
- 400 VA rated apparent power.
- Single-phase transformer configuration.
- 0/415 V primary terminals.
- 0/24 V secondary terminals.
- 24 V AC output connection.
- 50/60 Hz operating frequency.
- Approximately 16.67 A calculated nominal full-load secondary current.
- Continuous-rated control circuit transformer construction.
- Class E insulation system.
- 8% voltage regulation.
- High-specification IP20 touch-proof terminals.
- Class H varnish-impregnated construction.
- Core earth terminal for protective earthing.
- Designed to EN 61558-1.
- Specified ambient operating temperature range of −10 to +35 °C.
- Compact dimensions of 120 × 108 × 120 mm.
- Compatible enclosure references: EPH 3 or EPN 2.
Control circuit transformers such as the ETE SV400P5S6 provide voltage transformation between an industrial electrical supply and lower-voltage control equipment. By converting a 415 V AC input into a 24 V AC secondary supply, this transformer enables compatible contactor coils, relays, signalling devices and control components to operate from a dedicated control voltage.
The 400 VA continuous-duty rating enables the transformer to supply connected control equipment within its rated apparent power capacity. At the nominal secondary voltage of 24 V AC, the corresponding calculated full-load current is approximately 16.67 A. The specified 8% voltage regulation describes the change in secondary voltage between no-load and rated-load conditions, helping electrical designers account for voltage variation when selecting control equipment.
The ETE SV series is designed for industrial panel builders and machinery manufacturers requiring dependable control voltage transformation. Its IP20 touch-proof terminals, Class H varnish impregnation and protective core earth connection support robust installation within suitably designed electrical enclosures. The Class E insulation system and EN 61558-1 design basis further support its suitability for industrial control circuit applications.
For applications requiring additional physical protection, the SV400P5S6 can be installed using a suitable enclosure corresponding to the EPH 3 or EPN 2 reference. Correct primary and secondary circuit protection, protective earthing, ventilation and conductor sizing should be incorporated into the installation design. Where a 415 V supply is derived between two phases of a three-phase electrical system, the transformer remains a single-phase device connected across the appropriate supply conductors.
Typical Applications
- Industrial electrical control panels requiring a 24 V AC control supply.
- Machine building and OEM industrial automation equipment.
- Control circuits supplied from a 415 V AC source.
- Contactors, electromagnetic relays and switching equipment.
- Industrial signalling, indication and alarm circuits.
- Motor starter panels and industrial machinery control systems.
- Manufacturing and production line control equipment.
- Packaging machinery, conveyors and material handling systems.
- Electrical distribution and industrial automation cabinets.
- Maintenance and replacement of compatible 415 V to 24 V control transformers.
