| Type of transformer | mains |
| Application | for intercom systems |
| Protection | fuse |
| Symbol | Power | Uprim | Usec. 1 | Isec. wind. 1 | Leads | Lead length |
|---|---|---|---|---|---|---|
| [VA] | [V AC] | [V] | [A] | [mm] | ||
| TSZZBD12/001M | 12 | 230 | 12 | 1 | cables | 200 |
| TSZZBD20/001M | 20 | 230 | 12 | 1.66 | cables | 200 |
| TSZZBD30/001M | 30 | 230 | 12 | 2.5 | cables | 200 |
| TSZZBD12/002M | 12 | 230 | 12 | 1 | terminal block | - |
| TSZZBD20/002M | 20 | 230 | 12 | 1.66 | terminal block | - |
| TSZZBD30/002M | 30 | 230 | 12 | 2.5 | terminal block | - |
| TSZZBD12/003M | 12 | 230 | 14 | 0.85 | cables | 200 |
| TSZZBD20/003M | 20 | 230 | 14 | 1.42 | cables | 200 |
| TSZZBD30/003M | 30 | 230 | 14 | 2.14 | cables | 200 |
| TSZZBD12/004M | 12 | 230 | 14 | 0.85 | terminal block | - |
| TSZZBD30/004M | 30 | 230 | 14 | 2.14 | terminal block | - |