ABB TM40/12 Bell Transformer
Manufacturer: ABB
Type: Bell Transformer
Model: TM40/12
The ABB TM40/12 bell transformer is designed for safe and reliable low-voltage power supply in signaling and bell systems. Engineered with high efficiency and low power loss, this transformer delivers stable secondary voltages at multiple taps, supporting a wide range of applications. With IP20 protection, compact design, and a robust 40 W output, it is ideal for residential, commercial, and light industrial environments where consistent voltage transformation is essential.
| Primary Voltage | 230 V |
| Secondary Voltage | (6-7) 4 V AC, (5-6) 8 V AC, (5-7) 12 V AC |
| Secondary Current | 3.33 A |
| Output Current Maximum (Iout) | 10 A |
| Rated Frequency (f) | 50/60 Hz |
| Power Loss | 3 W |
| Rated Output Power | 40 W |
| Ambient Air Temperature (Operation) | 10 ... 40 °C |
| Degree of Protection | IP20 |
| Dimensions (H x W x D) | 85 x 52.5 x 65 mm |
