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1SVR508180R0100 ABB CT-PAC.22 Time Relay Alternating 2n/o
ABB CT-PAC.22 alternating relay with two normally open outputs, 24–48 V DC or 24–240 V AC control supply and alternating operation without time delay.
£36.45
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.
Technical Specifications
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| Contacts | 2NO | |
|---|---|---|
| Mounting Type | DIN rail | |
| Switching Current (A) | 4 A | |
| Device Type | Single-function timer | |
| Series | CT-C Time Relays | |
| Product type | Alternating relay | |
| Timing function | Alternating without time delay | |
| Control supply voltage | 24–240 V AC / 24–48 V DC | |
| Output | 2 n/o contacts | |
| Rated operational voltage | 250 V | |
| Rated operational current | 4 A per output contact | |
| Rated frequency | 50 / 60 Hz / DC | |
| Rated insulation voltage | 300 V | |
| Impulse withstand voltage | 4 kV, input circuit | |
| Pollution degree | 3 | |
| Protection rating | IP50 housing / IP20 terminals | |
| Operating temperature | -20–+60 °C | |
| Maximum operating altitude | 2000 m without derating | |
| Mounting type | DIN rail mounting | |
| Terminal type | Screw terminals | |
| Terminal tightening torque | 0.5–0.8 N·m | |
| Dimensions (H × W × D) | 70 × 17.5 × 63 mm | |
| Weight | 0.059 kg |
Frequently Asked Questions
What is the ABB CT-PAC.22 used for?
The CT-PAC.22 is an alternating relay used to switch between two normally open output contacts on successive power cycles, making it suitable for alternating loads such as pumps or other industrial equipment.
How does the CT-PAC.22 alternate its outputs?
When the relay is energised, one normally open contact closes while the other remains open. After the relay is de-energised and re-energised, the contact positions alternate.
What control supply voltage does the CT-PAC.22 require?
The CT-PAC.22 operates with a rated control supply of 24–48 V DC or 24–240 V AC.
How many outputs does the CT-PAC.22 have?
The CT-PAC.22 has two normally open output contacts, with each contact rated at 250 V / 4 A.
Does the CT-PAC.22 have a time delay?
No. The CT-PAC.22 is an alternating relay without time delay. Its output contacts change position according to successive energisation cycles.
Trusted by Automation Engineers Worldwide
ABB CT-C electronic relays provide dependable switching and control functions for industrial automation systems where reliable operation and efficient control panel integration are required.
