Elca TM125-S24 | Control transformer 250 V.A “IN 220/380 – OUT 24”

Elca TM125-S24 | Control transformer 250 V.A “IN 220/380 – OUT 24”

Product Description

The Elca TM125-S24 is a single-phase, dry-type control transformer with a power capacity of 250 VA, designed to safely reduce standard industrial voltages (220 V or 380 V AC) down to a stable 24 V AC output. This transformer is ideal for supplying low-voltage power to control circuits, push buttons, indicator lamps, relays, and other automation components.

With electrical isolation between input and output, it ensures increased safety, noise reduction, and protection for sensitive control systems. Compact, reliable, and built for industrial environments, it fits easily into control panels and machinery.

Technical Specifications

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

Power Rating: 250 VA

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

Secondary Voltage (Output): 24 V AC

Frequency: 50/60 Hz

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

Cooling Method: Natural air-cooled (AN)

Core Type: Laminated low-loss magnetic steel

Winding Material: Copper

Terminals: Screw-type terminals for secure connections

Protection Rating: IP20 (standard for open-type models)

Mounting Style: Panel or base-mounted

Key Features

Fixed Low-Voltage Output (24 V AC)
Provides a stable and safe control voltage, compliant with international industrial standards.

Dual Input Flexibility (220 V / 380 V)
Can be connected to different supply voltages depending on system requirements.

Full Electrical Isolation
Galvanic separation of primary and secondary circuits enhances operational safety.

Compact and Reliable
Designed to fit inside control cabinets without taking up excess space.

Maintenance-Free Operation
Static, rugged design with no moving parts ensures long-term use with minimal upkeep.

Typical Applications

Powering control buttons, pilot lights, and signal devices

Operating contactors, relays, and timers in machinery

Supplying safe 24 V AC for automation and safety systems

Used in industrial panels, HVAC systems, production lines, and elevator control panels

Providing voltage reduction and isolation for control circuits