Elca TM125 | Control transformer 250 V.A “IN 220/380 – OUT 12/24/48/70/110”

Elca TM125 | Control transformer 250 V.A “IN 220/380 – OUT 12/24/48/70/110”Product Description

The ELCA TM125 is a compact and versatile single-phase control transformer designed for low-voltage control and auxiliary circuits in industrial and commercial applications. With a power rating of 250 VA, it provides reliable performance for small to medium control loads.

It supports dual input voltages of 220 V or 380 V AC and offers a wide range of secondary output voltages—12 V, 24 V, 48 V, 70 V, and 110 V AC—typically via selectable terminals or taps. This multi-voltage capability makes the TM125 highly flexible, allowing it to serve various devices from a single transformer unit.

Engineered for safety and durability, the TM125 ensures galvanic isolation between input and output circuits, offering electrical protection and improved noise immunity in control systems. Its dry-type, air-cooled design ensures efficient operation with minimal maintenance.

Technical Specifications

Model: ELCA TM125

Power Rating: 250 VA

Transformer Type: Single-phase control / isolation transformer

Input Voltage: 220 V or 380 V AC (selectable)

Output Voltages: 12 V, 24 V, 48 V, 70 V, 110 V AC (via terminal taps)

Frequency: 50/60 Hz

Cooling Method: Dry-type, natural air-cooled

Insulation Class: Typically Class B (130 °C)

Protection Rating: Usually IP00 (for protected indoor installations)

Mounting Style: Panel mount or DIN rail (depending on configuration)

Isolation: Galvanic isolation between input and output circuits

Key Features

Multi-voltage Output: One transformer provides five standard output voltages, enhancing flexibility in control panel design.

Electrical Isolation: Safely separates the control circuit from the mains power, protecting sensitive components.

Compact Design: Ideal for small control panels or tight installation spaces.

Low Maintenance: Air-cooled, dry-type design reduces the need for regular servicing.

Industrial Reliability: Built to withstand mechanical, thermal, and electrical stresses found in industrial environments.

Typical Applications

Powering control relays, sensors, contactors, timers, and indicators in automation systems

Used in electrical control panels, machinery, and building automation systems

Supplying safe, low-voltage control power for operator interfaces or safety interlocks

Suitable for industrial machines, motor starters, and control cabinets requiring multiple control voltages

Helps ensure isolation and protection of control systems from the main power grid