Looking for a reliable and precise OFF-delay solution for your automation system? The ABB CT-AHC.12 Time Relay from the CT-C timer range is engineered to deliver seamless performance. Designed for versatility, it operates effortlessly with a wide range of supply voltages and offers a delay-on-break function. Built compact yet rugged, this time relay fits beautifully into any industrial or commercial control panel.
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OFF-delay (Delay on Break) function
7 adjustable time ranges (from 0.05 seconds to 100 hours)
Rated control supply voltage: 24-48V DC / 24-240V AC
1 changeover contact (SPDT), rated at 250V / 4A
Voltage-related (non-floating) control input
Compact width of only 17.5 mm
Lightweight, easy-to-mount design
Clear status indication with LED
Reliable performance even in wide voltage variations
Part of ABB's trusted CT-C timer series
When you need precision timing with flexible delay settings, the ABB CT-AHC.12 stands out. Whether it’s for motor control, lighting control, or any automated process requiring an OFF-delay, this device delivers reliable operation with minimal fuss. Built to handle demanding industrial environments, it offers both durability and simple installation. Plus, with ABB's trusted engineering, you’re ensuring a longer life and consistent performance.
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| Technical Specification | Details |
|---|---|
| Timer Relay Type | OFF-Delay |
| Time Range | 0.05 s ... 100 h |
| Rated Control Supply Voltage (Us) | 24 ... 240 V AC / 24 ... 48 V DC |
| Rated Operational Voltage | Auxiliary Circuit 250 V |
| Rated Frequency (f) | 50 / 60 Hz, DC |
| Output | 1 c/o (SPDT) contact |
| Terminal Type | Screw Terminals |
| Rated Operational Current AC-12 (Ie) | (230 V) 4 A |
| Rated Operational Current AC-15 (Ie) | (230 V) 3 A |
| Rated Operational Current DC-12 (Ie) | (24 V) 4 A |
| Rated Operational Current DC-13 (Ie) | (24 V) 2 A |
| Minimum Switching Capacity | 12 V, 100 mA |
| Rated Impulse Withstand Voltage (Uimp) | Input Circuit 4 kV |
| Rated Insulation Voltage (Ui) | Input Circuit / Output Circuit 300 V |
| Degree of Protection | Housing IP50 / Terminals IP20 |
| Overvoltage Category | III |
| Pollution Degree | 3 |
| Short-Circuit Protective Devices | NC - F Type Fuses 6 A, NO - F Type Fuses 10 A |
| Connecting Capacity | Flexible 1x 0.5 ... 2.5 mm² / 2x 0.5 ... 1.5 mm² Rigid 1x 0.5 ... 4 mm² / 2x 0.5 ... 1.5 mm² |
| Tightening Torque | 0.5 ... 0.8 N·m |
| Wire Stripping Length | 7 mm |
| Recommended Screw Driver | 0.8 x 4, Pozidriv 1 |
| Mounting Position | 1 ... 6 |
| Mounting on DIN Rail | TH35-15 / TH35-7.5 (IEC 60715 Standard) |
| Standards | CAN/CSA C22.2 No.14, IEC/EN 63000, IEC 61812-1, UL 508 |
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