Why Choose the ABB CT-MXS.22P Multifunction Timer Relay?
The ABB CT-MXS.22P (1SVR740030R3300) is a versatile and reliable multifunction electronic timer relay with two changeover (2 C/O) contacts, designed for precise time-dependent switching and control in industrial automation, electrical panels and machinery applications. As part of the advanced ABB CT-S electronic timer relay range, it provides flexible timing functions, adjustable time delays and dependable relay switching for complex industrial control sequences.
This multifunction timer offers five configurable timing functions and two independently adjustable timing intervals, with 10 selectable time ranges covering delays from 0.05 s to 300 h. Its asymmetrical timing capabilities make it particularly suitable for applications requiring different ON and OFF periods, repetitive switching, pulse generation and automated process sequencing.
The CT-MXS.22P operates with a 24–240 V AC or 24–48 V DC control supply and features two changeover (SPDT) output contacts rated at 250 V / 4 A. Its voltage-triggered control input, dual remote potentiometer connections and ABB's maintenance-free Easy Connect Technology with push-in terminals provide excellent flexibility for machine builders and control panel manufacturers. The compact 22.5 mm DIN rail housing enables straightforward installation in space-constrained industrial control cabinets.
Key Advantages
- Versatile multifunction electronic timer relay for industrial automation and electrical control applications.
- Five configurable timing functions support a wide range of automated switching sequences.
- Two independently adjustable timing intervals provide flexible asymmetrical ON and OFF timing.
- Wide timing range from 0.05 s to 300 h accommodates short switching pulses and extended process delays.
- 24–240 V AC / 24–48 V DC control supply offers compatibility with common industrial control voltages.
- Two changeover (2 C/O) output contacts provide flexible switching and signalling capabilities.
- Voltage-related control input enables externally triggered timing sequences.
- Two remote potentiometer connections allow convenient adjustment of timing intervals from suitable external controls.
- ABB Easy Connect push-in terminals simplify wiring and reduce installation time.
- Front-mounted operating controls enable accurate adjustment of timing parameters.
- Compact 22.5 mm DIN rail housing saves valuable electrical cabinet space.
- Two LED status indicators provide clear visual feedback during operation.
Key Features
- ABB CT-MXS.22P multifunction timer relay from the CT-S range.
- ABB order code: 1SVR740030R3300.
- Rated AC control supply: 24–240 V AC.
- Rated DC control supply: 24–48 V DC.
- Five selectable timing functions configured using DIP switches behind the front marker label.
- Asymmetrical ON-delay and OFF-delay for independently adjustable switching intervals.
- Impulse-ON/OFF function for controlled pulse switching.
- Pulse generator function with selectable ON or OFF starting state.
- Single pulse generator function for timed pulse output.
- ON/OFF function for switching control.
- Two sets of 10 selectable time ranges covering 0.05 s to 300 h.
- Two changeover (SPDT) output contacts.
- Output contact rating: 250 V / 4 A.
- Voltage-related (non-floating) triggering input for initiating timing functions.
- Two remote potentiometer connections for external timing adjustment.
- Front-mounted adjustment controls for precise timing configuration.
- Two LED indicators for operating status indication.
- Maintenance-free push-in terminals using ABB Easy Connect Technology.
- Tool-free mounting and removal from standard DIN rails.
- 22.5 mm housing width for compact control panel installation.
- Housing material with UL 94 V-0 flammability classification.
- Optional sealable transparent cover for protection against unauthorised parameter changes.
Technical Specifications
- Manufacturer: ABB
- Series: CT-S Electronic Timer Relays
- Model: CT-MXS.22P
- Manufacturer part number: 1SVR740030R3300
- ABB product group: 310926 – Timer Relays
- Product type: Multifunction electronic timer relay
- Timing functions: 5 selectable functions
- Timing modes: Asymmetrical ON/OFF delay, impulse-ON/OFF, pulse generator, single pulse generator and ON/OFF function
- Time range: 0.05 s to 300 h
- Selectable time ranges: 2 × 10 ranges
- Rated AC control supply voltage: 24–240 V AC
- Rated DC control supply voltage: 24–48 V DC
- Rated supply frequency: 50 / 60 Hz (AC)
- Output contacts: 2 changeover (2 C/O / SPDT)
- Contact configuration: DPDT
- Rated output contact voltage: 250 V
- Rated output contact current: 4 A
- Control input: Voltage-related triggering (non-floating)
- Remote potentiometer connections: 2
- Timing adjustment: Front-mounted controls and DIP switches
- Connection technology: Push-in terminals (Easy Connect Technology)
- Terminal type: Screwless push-in terminals
- Mounting type: DIN rail mounting
- Housing protection rating: IP50
- Terminal protection rating: IP20
- Operating ambient temperature: −25 to +60 °C
- Storage temperature: −40 to +85 °C
- Rated insulation voltage: 500 V (input/output circuits)
- Dimensions (H × W × D): 85.6 × 22.5 × 103.7 mm
- Housing width: 22.5 mm
- Net weight: approx. 0.131 kg
- Status indication: 2 LEDs
- Housing flammability classification: UL 94 V-0
- Country of origin: Germany
- EAN: 4016779851633
Reliable Multifunction Timing Control for Industrial Automation
Electronic timer relays such as the ABB CT-MXS.22P provide controlled switching of electrical circuits according to predefined timing sequences. By combining multiple timing functions in a single compact device, they simplify industrial automation systems and reduce the need for separate dedicated timing components.
The CT-MXS.22P is particularly useful for asymmetrical ON and OFF timing applications, where two different time intervals are required within the same operating cycle. This functionality allows equipment to operate with independently adjustable active and inactive periods, making it suitable for repetitive process control, intermittent operation and automated switching sequences.
Its five configurable functions include asymmetrical ON/OFF delay, impulse-ON/OFF, pulse generation with selectable starting state, single pulse generation and ON/OFF operation. Timing functions are selected using DIP switches located behind the front marker label, while the front-mounted controls allow accurate adjustment of the selected intervals.
With two sets of 10 selectable timing ranges covering 0.05 s to 300 h, the relay supports applications ranging from rapid switching pulses to extended process delays. The two remote potentiometer connections provide additional flexibility where timing parameters need to be adjusted from a suitable external control location.
The integrated two changeover relay contacts can be connected to PLC inputs, signalling circuits, contactor coils and other compatible electrical control equipment. The voltage-related triggering input enables external control signals to initiate the configured timing sequence, supporting integration into industrial machinery and automated production systems.
Designed for dependable control cabinet operation, the CT-MXS.22P combines maintenance-free push-in terminals, LED status indication and a compact DIN rail housing. Its broad AC and DC supply compatibility and configurable timing functions make it a practical solution for machine builders, panel manufacturers and industrial maintenance engineers.
Typical Applications
- Industrial machinery sequencing: Controlling timed operating sequences in automated manufacturing equipment.
- Asymmetrical ON/OFF switching: Providing independently adjustable active and inactive periods for repetitive control applications.
- Conveyor systems: Introducing timed switching intervals between material handling operations.
- Pump and fan control: Supporting intermittent operation and timed auxiliary control functions.
- Packaging machinery: Generating controlled switching pulses and timing intervals for automated production processes.
- Process automation: Coordinating timed events in industrial production and processing installations.
- Control panel automation: Providing configurable time-dependent switching within electrical control cabinets.
- Pulse generation: Producing repetitive or single timed switching signals for compatible control circuits.
- PLC and contactor control: Providing timed relay outputs for automation systems and electrical switching equipment.
- Ventilation and building services: Supporting timed operation of suitable fans, auxiliary equipment and control circuits.
- OEM equipment: Integrating flexible multifunction timing into machinery and automated systems.
- Industrial maintenance and retrofits: Replacing dedicated timing arrangements with a configurable multifunction relay where electrical compatibility permits.
