How to Wire a Contactor for Star Delta Motor Starting: Complete Guide
Learn how to wire a contactor for star delta motor starting with IEC 60947 circuits, timer logic, and safe sizing practices for engineers. Shop...
The ABB CT-AHD.22 (SKU: 1SVR500110R0100) is an OFF-delay timer relay from the CT-D series, delivering reliable time-delay switching for industrial control panel applications. Designed for versatile supply voltage ranges of 24–48V DC and 24–240V AC, the CT-AHD.22 features a 2-changeover (2C/O) contact output, making it suitable for a wide range of automation and process control tasks. Its compact 17.5 mm wide DIN rail profile ensures easy integration into space-constrained enclosures.
What does OFF-delay mean for the CT-AHD.22?
In OFF-delay mode, the output contacts remain energised for a set time period after the control input signal is removed. This allows controlled, time-based shutdown sequences in automation systems.
What supply voltages does the CT-AHD.22 accept?
The CT-AHD.22 accepts 24–48V DC and 24–240V AC, providing broad compatibility with most industrial control power supplies without requiring separate variants for AC and DC systems.
How wide is the CT-AHD.22 for DIN rail mounting?
The CT-AHD.22 has a width of 17.5 mm, fitting neatly onto standard DIN rails alongside other modular devices in compact control enclosures.
| Product Net Width | 17.5 mm |
|---|---|
| Product Net Height | 80 mm |
| Product Net Depth / Length | 63 mm |
| Product Net Weight | 0.066 kg |
| 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 | 2 C/O Contacts |
| Terminal Type | Screw Terminals |
| Rated Operational Current AC-12 (Ie) | (230 V) 5 A |
| Rated Operational Current AC-15 (Ie) | (230 V) 3 A |
| Rated Operational Current DC-12 (Ie) | (24 V) 5 A |
| Rated Operational Current DC-13 (Ie) | (24 V) 2 A |
| Rated Impulse Withstand Voltage (Uimp) | Input Circuit 4 kV |
| Rated Insulation Voltage (Ui) | Input Circuit / Output Circuit 300 V, Output Circuit 1 / Output Circuit 2 300 V |
| Degree of Protection | Housing IP50, Terminals IP20 |
| Overvoltage Category | III |
| Pollution Degree | 3 |
| Short-Circuit Protective Devices | Output Circuit NC - F Type Fuses 6 A, Output Circuit NO - F Type Fuses 10 A |
| Connecting Capacity | Flexible 1x 0.5 ... 2.5 mm², Flexible 2x 0.5 ... 1.5 mm², Rigid 1x 0.5 ... 4 mm², Rigid 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 (35 x 15 mm Mounting Rail) acc. to IEC 60715, TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715 |
| Standards | CAN/CSA C22.2 No.14, IEC/EN 63000, IEC/EN 61812-1, UL 508 |
| Maximum Operating Voltage UL/CSA | Output Circuit 300 V AC |
|---|---|
| Contact Rating UL/CSA | C300 |
| Connecting Capacity UL/CSA | Flexible 1x 18-14 AWG, Flexible 2x 18-16 AWG, Rigid 1x 20-12 AWG, Rigid 2x 20-16 AWG |
| Tightening Torque UL/CSA | 4.43 ... 7.08 in·lb |
| Pilot Duty UL/CSA | C300 |
| Flammability According to UL94 | V-2 |
| Part number | 1SVR500110R0100 |
|---|---|
| Type designation | CT-AHD.22 |
| Brand | ABB |
| Condition | New, factory sealed |
| Source | ABB and its authorised distributors |
| Warranty | Manufacturer warranty |
| EAN | 4016779657686 |
| eCl@ss | 27371605 |
| Minimum Order Quantity | 1 piece |
| Customs Tariff Number | 85364900 |
| Ambient Air Temperature | Operation -20 ... +60 °C, Storage -40 ... +85 °C |
|---|---|
| Maximum Operating Altitude Permissible | Without Derating 2000 m |
| REACH Declaration | 1SVD981001-4501 |
|---|---|
| RoHS Declaration | 1SVD981001-4401 |
| RoHS Information | Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019 |
| Toxic Substances Control Act - TSCA | 2CMT2023-006536 |
| ETIM 7 | EC001439 - Timer relay |
|---|---|
| eClass | V11.0 : 27371605 |
| UNSPSC | 39122329 |
| E-Number (Sweden) | 4030178 |
| Package Level 1 Units | box 1 piece |
|---|---|
| Package Level 1 Width | 89 mm |
| Package Level 1 Depth / Length | 20 mm |
| Package Level 1 Height | 65 mm |
| Package Level 1 Gross Weight | 0.079 kg |
| Package Level 1 EAN | 4016779657686 |
| Package Level 2 EAN | 4013614580260 |
| Shipping weight | 0.079 kg |
| Ships from | Türkiye |
| Dispatch | 9 Nov |
| Stock | Critical stock |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for CT-AHD.22 is 85364900.
The EAN (GTIN) of CT-AHD.22 is 4016779657686.
CT-AHD.22 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Learn how to wire a contactor for star delta motor starting with IEC 60947 circuits, timer logic, and safe sizing practices for engineers. Shop...