Product Description
ABB CT-AHD.12
The ABB CT-AHD.12 is a versatile electronic time relay from the compact CT-D range, designed for true off-delay timing functions. This single-function timer is engineered for applications requiring a delayed switch-off after the control supply voltage is removed, with the timing period maintained by an auxiliary voltage. Its wide time range, from 0.05 seconds to 100 hours, and a broad multi-voltage input make it a flexible solution for various industrial control and automation systems. Housed in a slim 17.5 mm wide enclosure, it is ideal for space-saving installations on a DIN rail. The CT-AHD.12 provides one changeover contact (SPDT) for reliable switching of loads.
Technical Specifications:
- Function: True off-delay with auxiliary voltage
- Time Range: 0.05 s to 100 h
- Rated Control and Auxiliary Supply Voltage (Us): 24-48 V DC / 24-240 V AC
- Output Contacts: 1 c/o (SPDT) contact, rated at 250 V / 6 A
- Width: 17.5 mm
- Mounting: DIN rail (EN 60715)

ABB CT-AHD.12
Discover the ABB CT-AHD.12, a compact true off-delay electronic time relay. Features a wide time range (0.05s-100h) and multi-voltage input for precise control in automation and industrial applications.









