The safety transformer is designed for use in combination with consumers that require an interrupted supply at extremely low safety voltages. Application for doorbells, buzzers and gongs. Mounting on DIN top-hat rails. Can be integrated into consumer units and used for discontinuous and continuous applications. Single phase: 50/60 Hz. Input voltage: 230 V. Housing: polyamide 66. Degree of protection: IP40. Protected against unintentional or accidental contact with live parts xxB Class II under the front panel in the distribution board. Input side: 230V AC. Output side: 4/8/12/24V AC. Safety transformer IEC 61558-2-8 standard. Protected against overloads and short circuits by built-in PTC (Positive Temperature Coefficient, PTC refers to general properties) in the primary winding. In the event of an overload, switch off the power supply and allow the transformer to cool down before switching it back on. Bell transformer: Safety transformer with a secondary voltage not exceeding 24 V permanently and for non-permanent use. Power for 4V-8V-12V or 24V access control devices such as: bell, chime, door release, optical / electrical barrier as well as water detector, temperature rise detector. Connections: - Primary flexible or rigid: 1 to 4 mm² - Secondary flexible or rigid: 1 to 4 mm²
| Property | Value |
| Type of transformer: | Safety transformer |
| Primary voltage: | 220 V |
| Width in pitch units: | 3 |
| Secondary voltage 1: | 4 V |
| Secondary voltage 2: | 230 V |
| Secondary voltage 3: | 12 V |
| Secondary current 1: | 2 A |
| Secondary current 2: | 2 A |
| Secondary current 3: | 2 A |
| Short-circuit proof: | yes |
