Door Bell Transformer T-100B Item No.: T-100B Product Type: Door Bell Transformer Mounting Options: Suitable for surface mounting or DIN rail mounting Input Voltage: 220V–240V AC Output: 8V, 1A Frequency: 50–60Hz Safety Feature: Equipped with a control system and resettable thermal fuse for enhanced protection. Dimensions: 91 × 53 × 38 mm