Why Choose the ETE DV300P6S6 300 VA Dual-Input-Voltage Control Transformer?
The ETE DV300P6S6 is a robust 300 VA single-phase industrial control transformer designed to provide a reliable 24 V AC secondary output from either a 240 V AC or 415 V AC primary supply. Manufactured by Eastern Transformers & Equipment (ETE), this transformer belongs to the established DV dual-input-voltage control transformer series, developed for industrial electrical control panels, machinery and automation systems requiring flexible input voltage selection.
The DV300P6S6 features a tapped primary winding with 0/240/415 V terminals, allowing installers to select the appropriate input connection for the available supply. Its 0/24 V secondary terminals provide a dedicated 24 V AC output for compatible contactor coils, electromagnetic relays, solenoid valves, signalling devices and industrial control equipment. The dual-input arrangement makes the transformer particularly useful for OEM machinery manufacturers and panel builders working with different industrial supply configurations.
With a rated apparent power of 300 VA, Class E insulation and 8% voltage regulation, the DV300P6S6 combines dependable voltage transformation with practical industrial construction. Measuring 120 × 100 × 120 mm and weighing 4.7 kg, it is suitable for installation within electrical control cabinets. The specified compatible enclosure references are ETE EPH 3 or EPN 2.
Key Advantages
- Dual primary voltage capability: Accepts either 240 V AC or 415 V AC using the appropriate primary terminal connections.
- Dedicated 24 V AC output: Supplies compatible industrial control components from a single secondary winding.
- 300 VA continuous-rated capacity: Suitable for control circuits requiring dependable low-voltage AC power.
- Flexible supply compatibility: One transformer model accommodates two commonly used industrial input voltages.
- Class E insulation system: Provides dependable electrical insulation for industrial control applications.
- 8% voltage regulation: Offers a defined secondary voltage regulation characteristic for control circuit design.
- IP20 touch-proof terminals: Help reduce accidental contact with electrical terminal connections.
- Class H varnish impregnation: Supports robust winding construction and long-term reliability.
- Core earth connection: Provides a dedicated protective earthing point.
- 50/60 Hz compatibility: Suitable for standard industrial AC supply frequencies.
- Contactor inrush selection guidance: ETE lists 650 VA at 95% secondary voltage and 1000 VA at 90% secondary voltage for the 300 VA transformer size.
- Compact industrial construction: Measures 120 × 100 × 120 mm for integration into electrical control panels.
- Enclosure compatibility: Suitable for ETE EPH 3 or EPN 2 enclosure arrangements.
- Established UK-manufactured transformer range: Developed for industrial panel builders, machinery manufacturers and maintenance applications.
Key Features
- ETE DV dual-input-voltage control transformer series.
- 300 VA rated apparent power.
- Single-phase control circuit transformer.
- Selectable primary voltage: 240 V AC or 415 V AC.
- Primary terminal arrangement: 0/240/415 V.
- Secondary terminal arrangement: 0/24 V.
- Nominal secondary output: 24 V AC.
- Rated frequency: 50/60 Hz.
- Calculated nominal full-load secondary current: 12.5 A.
- Continuous-rated control transformer construction.
- Class E insulation system.
- 8% voltage regulation.
- IP20 touch-proof electrical terminals.
- Class H varnish-impregnated construction.
- Core earth connection.
- Designed to EN 61558-1.
- Ambient operating temperature range: −10 to +35 °C.
- Contactor inrush selection figure at 95% secondary voltage: 650 VA.
- Contactor inrush selection figure at 90% secondary voltage: 1000 VA.
- Dimensions: 120 × 100 × 120 mm.
- Weight: 4.7 kg.
- Compatible enclosure references: EPH 3 or EPN 2.
Reliable 24 V AC Control Power with Dual Primary Voltage Flexibility
The ETE DV300P6S6 provides a practical solution for industrial installations requiring a dedicated 24 V AC control supply where the available primary voltage may be either 240 V AC or 415 V AC. Its dual-input-voltage arrangement enables the correct primary connection to be selected during installation, allowing one transformer model to accommodate different electrical supply configurations without changing the nominal secondary voltage.
For a 240 V AC input, the transformer uses its designated 0/240 V primary terminals. For a 415 V AC input, the designated 0/415 V primary terminals are used. Both arrangements provide a nominal 24 V AC secondary output. The primary connections are alternative voltage selections and must not be energised simultaneously from independent electrical supplies.
The 300 VA continuous apparent power rating corresponds to a calculated nominal full-load secondary current of 12.5 A at 24 V AC. This makes the transformer suitable for appropriately sized industrial control circuits containing compatible contactor coils, electromagnetic relays, solenoid valves and signalling equipment. Connected devices must be assessed against the available transformer capacity, including both normal operating demand and simultaneous energisation requirements.
For electromagnetic control applications, ETE publishes contactor inrush selection figures of 650 VA at 95% secondary voltage and 1000 VA at 90% secondary voltage for the 300 VA transformer size. These figures help electrical designers assess short-duration contactor energisation requirements while considering acceptable secondary voltage conditions. They should not be interpreted as additional continuous output capacity beyond the transformer's 300 VA rating.
The specified 8% voltage regulation describes the variation in secondary voltage between no-load and rated-load conditions. This characteristic is important when designing control circuits containing voltage-sensitive components or equipment that switches between different operating states. Appropriate consideration of voltage regulation and contactor inrush demand helps support dependable operation during machinery start-up and normal production cycles.
The DV300P6S6 incorporates Class E insulation, Class H varnish impregnation, IP20 touch-proof terminals and a protective core earth connection. Its continuous-rated construction is designed to EN 61558-1, with a specified ambient operating temperature range of −10 to +35 °C.
For installation within industrial control cabinets, the transformer measures 120 × 100 × 120 mm and uses mounting centres of 90 × 82 mm with 5 mm fixing holes. The compatible EPH 3 or EPN 2 enclosure references provide options for installations requiring additional physical protection. Suitable primary and secondary circuit protection, protective earthing, conductor sizing and ventilation should be incorporated into the electrical design.
Although the transformer may be connected across two suitable phases of a three-phase electrical system where the phase-to-phase voltage is 415 V AC, the DV300P6S6 remains a single-phase transformer. Its secondary winding supplies 24 V AC, not 24 V DC. Equipment requiring regulated DC power will need a suitable rectifier and power regulation arrangement.
Typical Applications
- Industrial electrical control panels requiring a 24 V AC supply.
- Machinery designed for either 240 V AC or 415 V AC primary supply configurations.
- OEM machinery and electrical control panel manufacturing.
- Contactor and electromagnetic relay control circuits.
- Motor starter panels and machinery control systems.
- Industrial solenoid valves and actuators rated for 24 V AC.
- Industrial signalling, indication and alarm circuits.
- Packaging machinery and conveyor systems.
- Manufacturing and production line automation.
- Building services control equipment using compatible 24 V AC components.
- Industrial maintenance and electrical refurbishment projects.
- Replacement of compatible 300 VA dual-input-voltage control transformers.
