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ABB CT-AHC.12 Time Relay

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ABB CT-AHC.12 Time Relay – OFF-Delay Time Control at Its Best!

Catalog Description: CT-AHC.12 Time relay, OFF-delay 1c/o, 24-48VDC/24-240VAC

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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Key Features at a Glance:

  • 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

Why Choose This Relay?

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.

Description

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

Additional information

Brand

ABB

Model

CT-AHC.12

Type

OFF-delay Time Relay

Timer Function

OFF-delay (Delay on Break)

Time Ranges

0.05 seconds to 100 hours

Control Supply Voltage

24-48V DC / 24-240V AC

Output

1 c/o (SPDT) contact

Output Rating

250V / 4A

Control Input Type

Voltage-related (non-floating)

Mounting Width

17.5 mm

Series

CT-C Timer Range

Product Net Width

17.5 mm

Product Net Height

70 mm

Product Net Depth / Length

63 mm

Product Net Weight

0.053 kg

Country Of Origin

Germany