Why Choose the ETE XMS300P5S6 300 VA Class II Enclosed Safety/Isolating Transformer?
The ETE XMS300P5S6 is a 300 VA single-phase Class II enclosed safety/isolating transformer designed to provide a nominal 24 V AC secondary supply from a 415 V AC primary input. Part of the ETE XMS transformer series, it combines Class II electrical construction, an integral moulded housing and chassis mounting for industrial control panels, machinery and automation equipment.
Featuring 0/415 V primary terminals and 0/24 V secondary terminals, the XMS300P5S6 provides dedicated AC voltage transformation for compatible low-voltage industrial control circuits. Its Class II construction incorporates protective insulation arrangements, while its safety/isolating transformer design provides electrical separation between the primary and secondary circuits. This makes it a practical choice for installations requiring an enclosed transformer with a defined 415 V to 24 V AC voltage configuration.
The XMS300P5S6 is specified for chassis mounting only, allowing installation on a suitably supported equipment mounting surface. With Class F insulation, dimensions of 126 × 136 × 127 mm and a weight of 5 kg, it offers electrical panel builders, OEM machinery manufacturers and maintenance engineers a practical solution for supplying compatible 24 V AC control equipment.
Key Advantages
- 300 VA rated capacity provides a dedicated low-voltage AC supply for compatible industrial control equipment.
- 415 V AC primary input supports installations with an appropriate nominal industrial supply.
- 24 V AC secondary output is suitable for compatible control, signalling and automation circuits.
- Class II electrical construction incorporates protective insulation arrangements for electrical safety.
- Safety/isolating transformer design provides electrical separation between the primary and secondary circuits.
- Integral moulded housing provides an enclosed transformer assembly.
- Chassis mounting allows the transformer to be secured to a suitable mounting surface within machinery or electrical equipment.
- Class F insulation provides a defined thermal insulation classification.
- 126 × 136 × 127 mm dimensions provide clear information for electrical panel space planning.
- 5 kg weight enables suitable mechanical support and mounting arrangements to be specified.
- Dedicated 415 V to 24 V AC transformation simplifies transformer selection for compatible low-voltage control applications.
- Single-phase construction is suitable for dedicated industrial control power transformation.
Key Features
- ETE XMS Class II enclosed safety/isolating transformer series.
- 300 VA rated apparent power.
- 0.3 kVA transformer capacity.
- Single-phase transformer configuration.
- Class II electrical construction.
- Enclosed safety/isolating transformer design.
- Primary terminal configuration: 0/415 V.
- Nominal primary voltage: 415 V AC.
- Secondary terminal configuration: 0/24 V.
- Nominal secondary output: 24 V AC.
- Integral moulded housing.
- Chassis mounting only.
- Insulation class: F.
- Length: 126 mm.
- Width: 136 mm.
- Height: 127 mm.
- Weight: 5 kg.
- Suitable for appropriately designed industrial electrical installations requiring a nominal 24 V AC control supply from a 415 V AC source.
Reliable Class II 24 V AC Control Power for Industrial Automation
The ETE XMS300P5S6 provides a straightforward method of transforming a nominal 415 V AC primary supply into a 24 V AC secondary supply. Its 300 VA rated capacity makes it suitable for compatible industrial control equipment where the combined apparent power demand remains within the transformer's rating. Typical loads may include AC control relays, contactor coils, signalling devices and other electrical equipment designed for 24 V AC operation.
A key feature of the XMS300P5S6 is its Class II electrical construction. Class II equipment incorporates protective insulation arrangements designed to provide protection against electric shock without relying on a protective earth connection for its protective insulation system. The transformer's safety/isolating designation provides electrical separation between the primary and secondary circuits, supporting appropriately engineered low-voltage control power installations. Class II electrical construction is distinct from the transformer's Class F thermal insulation rating.
The integral moulded housing provides an enclosed transformer format, while the specified chassis-only mounting arrangement allows the unit to be installed on a suitable equipment mounting surface. Unlike smaller XMS models that may offer DIN rail installation, the XMS300P5S6 must be chassis mounted. The mounting surface and fixings should be suitable for its 5 kg weight and the conditions of the installation.
At its rated capacity, the calculated nominal secondary current is approximately 12.5 A at 24 V AC. This figure is derived from the 300 VA rating and nominal output voltage rather than a separately verified manufacturer current rating. The calculated ideal primary current is approximately 0.72 A at 415 V AC, excluding transformer losses and magnetising current. Suitable primary and secondary circuit protection, conductor sizing, ventilation and electrical clearances remain essential for dependable operation.
When selecting a transformer for control circuits containing contactors, solenoids or other inductive devices, both the continuous load and any short-duration inrush demand should be considered. The transformer's 300 VA rating alone does not establish its permissible short-duration inrush capability, so the complete load profile should be checked against the manufacturer's installation and application guidance.
Typical Applications
- 24 V AC industrial control circuits.
- Electrical control panels supplied from compatible 415 V AC systems.
- Industrial machinery requiring a dedicated 24 V AC control supply.
- Chassis-mounted machinery control equipment.
- Industrial automation and OEM machinery.
- Control relays and contactors with compatible 24 V AC coils.
- Industrial signalling and indication circuits.
- Motor control panels requiring a compatible 24 V AC supply.
- Building control equipment designed for 24 V AC operation.
- Machinery electrical cabinets and control enclosures.
- Electrical equipment requiring an appropriately specified isolating transformer.
- Electrical panel building and control system integration.
- Replacement or upgrade projects requiring a compatible 300 VA, 415 V to 24 V AC chassis-mounted enclosed transformer.
