Why Choose the ABB CT-AHC.12 Time Relay?
The ABB CT-AHC.12 is a compact and reliable electronic OFF-delay time relay designed for precise timing and sequencing in industrial control and automation systems. As part of the established ABB CT-C timer relay range, it provides dependable delay-on-break operation for control panels, machinery and electrical automation applications.
This single-function timer relay provides seven selectable time ranges covering 0.05 s to 100 h, allowing the required delay to be set accurately for a wide range of control applications. Its front-mounted adjustment controls and compact housing simplify installation, commissioning and operation.
With a rated control supply voltage of 24–48 V DC or 24–240 V AC and one changeover relay output, the CT-AHC.12 provides flexible switching capability for industrial control circuits. Its compact 17.5 mm wide housing is well suited to installations where control panel space is limited.
Key Advantages
- Compact OFF-delay electronic time relay for industrial automation applications.
- Seven selectable time ranges from 0.05 s to 100 h.
- 24–48 V DC or 24–240 V AC control supply for flexible installation.
- One changeover (1 c/o) relay output for versatile switching applications.
- Adjustable timing for straightforward configuration of delayed switching sequences.
- Compact 17.5 mm wide housing for space-efficient control panels.
Key Features
- ABB CT-C timer relay range.
- OFF-delay (delay-on-break) timing function.
- 1 c/o (SPDT) relay output.
- 24–48 V DC / 24–240 V AC rated control supply.
- 0.05 s to 100 h time range across seven selectable ranges.
- 250 V / 4 A rated output contact capability.
- Voltage-related, non-floating control input.
- DIN rail mounting for straightforward control panel installation.
- Compact housing with screw terminals for industrial wiring.
Reliable Timing for Industrial Automation
Time relays such as the ABB CT-AHC.12 provide controlled delays within electrical automation systems. The OFF-delay function keeps the relay output energised for a defined period after the control signal is removed, helping coordinate contactors, motors, valves, indicators and other control equipment.
The CT-C range is designed for practical industrial control applications where accurate and repeatable timing is required. The CT-AHC.12 combines selectable time ranges, adjustable delay settings and a compact DIN rail-mounted housing for straightforward integration into control cabinets and electrical automation systems.
Typical Applications
- Industrial automation and control panels.
- Motor and contactor sequencing systems.
- Machine control and production equipment.
- Delayed switching of valves and actuators.
- Lighting and signalling control systems.
- Process control and electrical sequencing applications.
