Why Choose the ETE WV3000P7S7 3000 VA Wide-Input-Voltage Control Transformer?
The ETE WV3000P7S7 is a high-capacity 3000 VA (3 kVA) single-phase wide-input-voltage control transformer designed for industrial electrical control panels, machinery, switchgear and automation systems. Part of the ETE WV wide-input-voltage control transformer range, it combines multiple primary voltage taps with configurable dual secondary windings, providing flexible AC voltage conversion for industrial installations requiring substantial low-voltage control power capacity.
The WV3000P7S7 features a 0/380/400/420/440/460/480 V primary terminal arrangement, supporting compatible 380, 400, 420, 440, 460 and 480 V AC supplies. Its two 0/24 V secondary windings can be connected in parallel for 24 V AC or in series for 48 V AC. This flexible output configuration makes the transformer suitable for industrial control systems with different low-voltage AC operating requirements.
With a rated apparent power of 3000 VA (3 kVA), Class E insulation and 3% voltage regulation, the WV3000P7S7 provides a practical solution for appropriately rated industrial control circuits. Its dimensions of 192 × 189 × 185 mm and weight of 28 kg require suitable installation space and secure mechanical support. The specified enclosure reference is EPN 5.
Key Advantages
- 3000 VA (3 kVA) rated capacity for higher-demand industrial control and automation applications.
- Wide primary voltage selection covering 380, 400, 420, 440, 460 and 480 V AC.
- Dual 24 V secondary windings provide flexible series and parallel output configurations.
- 24 V AC parallel output for compatible low-voltage industrial control equipment.
- 48 V AC series output for control circuits requiring a higher secondary voltage.
- 3% voltage regulation provides a defined secondary voltage regulation characteristic.
- Class E insulation provides a specified thermal insulation classification.
- 192 × 189 × 185 mm dimensions support integration into appropriately sized industrial electrical cabinets.
- Single-phase construction suitable for industrial machinery and electrical control assemblies.
- EPN 5 enclosure reference assists with selecting suitable protective housing.
Key Features
- ETE WV wide-input-voltage control transformer series.
- 3000 VA (3 kVA) rated apparent power.
- Single-phase transformer configuration.
- Primary terminals: 0/380/400/420/440/460/480 V.
- Selectable primary voltages: 380, 400, 420, 440, 460 and 480 V AC.
- Secondary terminals: 0/24 V + 0/24 V.
- Secondary winding arrangement: Dual windings configurable in series or parallel.
- Parallel secondary output: 24 V AC.
- Series secondary output: 48 V AC.
- Voltage regulation: 3%.
- Insulation class: E.
- Dimensions: 192 × 189 × 185 mm.
- Weight: 28 kg.
- Enclosure reference: EPN 5.
The ETE WV3000P7S7 is designed for industrial control installations where the available primary supply voltage may differ between machines, facilities or electrical systems. Its selectable primary terminals support 380, 400, 420, 440, 460 and 480 V AC, allowing the transformer to be configured for several compatible industrial supply voltages.
The transformer incorporates two secondary windings, each with 0/24 V terminals. Connecting the two matching secondary windings in parallel with the correct polarity provides 24 V AC. Connecting the windings in series with the correct additive polarity provides 48 V AC. All winding connections must follow ETE's instructions to ensure correct voltage selection and safe operation.
Based on its 3000 VA rating, the theoretical full-load secondary current is approximately 125 A at 24 V AC or 62.5 A at 48 V AC. These calculated values assume the full rated apparent power is available in the selected configuration. Actual permissible winding currents and loading requirements must follow ETE's specifications.
The specified 3% voltage regulation means secondary voltage variation between operating load conditions should be considered when selecting connected equipment. The potentially high secondary currents require particular attention to conductor sizing, terminal ratings, circuit protection and distribution arrangements. Correct primary tap selection, secondary winding polarity and appropriate installation clearances are essential for safe operation. Due to its 28 kg weight, the transformer also requires suitable mechanical support and safe handling during installation.
Typical Applications
- Industrial electrical control panels and automation cabinets.
- Control circuits supplied from 380–480 V AC industrial electrical systems.
- Higher-capacity 24 V AC control power distribution.
- 48 V AC industrial control equipment and signalling circuits.
- OEM machinery requiring substantial low-voltage AC control power.
- Industrial process control and automation installations.
- Motor control centres and machinery control cabinets.
- Industrial relays, contactors and compatible AC-operated control devices.
- Electrical assemblies requiring selectable isolated 24 V or 48 V AC supplies.
- Replacement of existing high-capacity control transformers with matching electrical and mechanical specifications.
