Elca TM125-S24 | Control transformer 250 V.A “IN 220/380 OUT 220/380”

Elca TM125-S24 | Control transformer 250 V.A “IN 220/380 OUT 220/380”

Product Description

The Elca TM125-S24 is a single-phase, dry-type isolation transformer rated at 250 VA, designed for applications that require electrical separation between the power supply and the control or load circuits. It features matching input and output voltages (220 or 380 V AC), which means it doesn’t convert voltage levels but instead provides galvanic isolation, improves system safety, and helps in reducing electrical noise.

This transformer is particularly suitable for use in control panels, industrial machinery, and automation systems where protection and signal integrity are essential, even though the voltage level remains unchanged.

Technical Specifications

Transformer Type: Single-phase, dry-type isolation/control transformer

Power Rating: 250 VA (Volt-Amperes)

Primary Voltage (Input): 220 V or 380 V AC (selectable via wiring)

Secondary Voltage (Output): 220 V or 380 V AC (same as input)

Frequency: 50 / 60 Hz

Insulation Class: Class B (130°C) or better

Core Type: Low-loss laminated magnetic steel

Winding Material: Copper

Cooling Method: Natural air-cooled (AN)

Protection Class: IP20 (for open-frame models)

Terminals: Screw-type terminals

Mounting Style: Panel or base mounting

Key Features

Same Voltage Input and Output (220/380 V)
Provides galvanic isolation without altering voltage—ideal for protecting circuits while maintaining existing voltage levels.

Compact and Lightweight Design
Small footprint makes it easy to integrate into existing control cabinets or equipment.

Electrical Noise Reduction
Isolates sensitive electronics from line disturbances and high-frequency interference.

Dual Input Voltage Compatibility
Easily configurable to work with either 220 V or 380 V AC systems.

Long Service Life
Built using high-quality core materials, thermal insulation, and durable construction for continuous operation.

Typical Applications

Electrical isolation of control circuits in machinery

Preventing ground loop interference between systems

Protecting sensitive automation components from line voltage disturbances

Supplying auxiliary power with improved safety

Used in elevators, HVAC systems, machine tools, industrial panels