Safety transformer iTR-S-40/12-24 40 VA 12-24 VAC A9A15220

Safety and reliability in a compact housing

The iTR-S-40/12-24 safety transformer is a reliable device that allows you to obtain a safe voltage of 12 or 24 V AC from a 230 V mains supply. Designed for a wide range of applications, from doorbell systems to security installations, it provides effective galvanic isolation between the primary and secondary circuits. Its modular design simplifies installation and integration with existing electrical installations.

Functionality and protection

This transformer is characterized by a power of 40 VA, making it suitable for powering various devices with low power consumption. Built-in short-circuit and thermal protection guarantee safe operation and minimize the risk of damage. Additionally, the transformer complies with EN 61558-2-6 and EN 60742 standards, confirming its high quality and safety of use. This gives both installers and end-users confidence that the system is protected against potential failures.

Installation and parameters

The device has compact dimensions (60 mm length, 90 mm width and 89 mm height) and occupies 5 modules in a distribution box. The secondary side current is 3.33 A at 12 V and 1.7 A at 24 V. The maximum power loss is 4 W. The lack of an on/off switch means continuous power supply to the secondary circuit after connection to the 230 V mains – which is typical for safety transformers designed for constant power supply to devices requiring low voltage. The modular design simplifies replacement in the event of a failure or the need to modernize the installation.