Why Choose the ABB CT-PAC.22 Alternating Relay?
The ABB CT-PAC.22 is a compact electronic alternating relay designed to alternate between two normally open output contacts each time the control supply is energised. With no time delay function, it provides a straightforward and reliable way of distributing successive operating cycles between two loads in industrial control and automation systems.
The CT-PAC.22 features 2 n/o output contacts, each rated at 250 V / 4 A. When the relay is energised, one contact closes while the other remains open. After the relay is de-energised and subsequently re-energised, the contact positions alternate, providing balanced operation between connected loads.
With a rated control supply of 24–48 V DC or 24–240 V AC, the CT-PAC.22 can be integrated into a wide range of industrial control circuits. Its compact 17.5 mm wide DIN rail housing helps conserve valuable space inside control cabinets.
Key Advantages
- Compact electronic alternating relay for industrial control applications.
- Alternates the output contacts on each successive power cycle.
- 2 n/o output contacts for controlling two separate loads.
- Each output contact rated at 250 V / 4 A.
- 24–48 V DC or 24–240 V AC control supply.
- No time delay required for the alternating switching function.
- Compact 17.5 mm wide housing for space-efficient installations.
- DIN rail mounting and screw terminals simplify control panel installation.
Key Features
- ABB CT-C timer relay range.
- Alternating relay without time delay.
- 2 n/o contacts.
- Output contacts alternate position after each power cycle.
- 250 V / 4 A rating for each output contact.
- 24–48 V DC / 24–240 V AC rated control supply.
- Control supply connected through A1-A2 terminals.
- Front-facing LEDs provide operational status indication.
- DIN rail mounting for straightforward control cabinet installation.
- Screw terminals for secure industrial wiring.
Reliable Alternating Control for Industrial Automation
The ABB CT-PAC.22 provides a simple and dependable method of alternating control between two connected loads. On each energisation cycle, one normally open output contact closes while the other remains open. Following de-energisation and the next energisation cycle, the output positions alternate.
This alternating operation is particularly useful where successive operating cycles need to be shared between two devices. The CT-PAC.22 combines this function with flexible AC/DC control supply compatibility and a compact DIN rail-mounted housing for straightforward integration into industrial control panels.
Typical Applications
- Alternating control of two pumps.
- Industrial automation and control panels.
- Load balancing between two machines or devices.
- Alternating motor or equipment operation.
- Duty and standby equipment switching.
- Sequential control of two loads.
- Process systems requiring alternating operating cycles.
