ABB CT-S Electronic Timer Relays

ABB CT-S Electronic Timer Relays Supplier,Exporter in India

ABB CT-S Timer Relays for Industrial Control & Automation

ABB CT-S is a range of electronic timer relays used for time-controlled switching in industrial control panels, machines, motor starters and automation systems. The range covers simple ON-delay and OFF-delay requirements as well as multifunction timing, flashing, pulse control and star-delta motor starting.

CT-S timers are suitable for applications where a contactor, motor, valve, alarm or another control device needs to switch after a preset time. Depending on the model, timing can be adjusted from fractions of a second to several hours.

ABB offers both single-function and multifunction CT-S timer relays, with screw or push-in terminal versions. Wide supply voltage models are also available, making the range useful for panel builders, OEMs, machine manufacturers and industrial maintenance requirements.

For an ABB CT-S timer relay supplier in India, ABB multifunction timer, ON-delay relay, OFF-delay timer or star-delta timer relay, buyers can share the complete model, supply voltage, timing requirement and quantity for quotation.

ABB CT-S Timer Relay Models

The CT-S family includes several models for different timing functions.

ABB CT-MVS Multifunction Timer Relays

The CT-MVS series provides multiple timing functions in one relay and is useful where one timer may need to perform different jobs depending on the application.

Main models include:

• CT-MVS.21
• CT-MVS.22
• CT-MVS.23
• CT-MVS.12

Depending on the model, available functions include ON-delay, OFF-delay, pulse, flasher, ON/OFF delay and other timing sequences.

The widely used CT-MVS21 operates with a 24–240 V AC/DC supply and provides a wide timing range.

ABB CT-MFS Multifunction Timer Relay

CT-MFS.21 is another multifunction timer in the CT-S range.

It provides several common timing functions in one unit, including:

• ON-delay
• OFF-delay
• Impulse
• Flasher
• Pulse
• Star-delta timing
• ON/OFF operation

CT-MFS.21 is available with screw or push-in terminals and a 24–240 V AC/DC control supply.

ABB CT-MXS Multifunction Timer

The CT-MXS.22 provides independent timing adjustment for applications requiring more flexible ON/OFF timing.

It is useful for cyclic operation, pulse generation and machines where separate timing periods need to be set.

ABB CT-MBS Multifunction Timer

The CT-MBS.22 is another multifunction CT-S relay covering commonly used industrial timing functions.

It is suitable for general machine control, automation panels and OEM equipment where several timer functions may be required from the same device.

ABB CT-WBS Impulse & Flasher Timer

The CT-WBS.22 is mainly used for pulse and flashing applications.

Typical uses include:

• Warning lights
• Cyclic machine operation
• Repeating control signals
• Pump sequencing
• Alarm systems

ABB CT-ERS ON-Delay Timer Relays

CT-ERS relays are dedicated ON-delay timers.

Main models include:

• CT-ERS.21
• CT-ERS.22
• CT-ERS.12

An ON-delay timer waits for the selected time after power is applied before changing its output contact.

Typical applications include delayed motor starting, sequential equipment startup and delayed switching of contactors.

ABB CT-APS OFF-Delay Timer Relays

The CT-APS series is used where the output needs to remain active for a preset period after the control signal changes.

Models include:

• CT-APS.21
• CT-APS.22
• CT-APS.12

These timers are commonly used for fans, pumps, lighting circuits and machine-control sequences.

ABB CT-AHS & CT-ARS OFF-Delay Timers

ABB also offers:

• CT-AHS.22
• CT-ARS.11
• CT-ARS.21

These models cover OFF-delay and true OFF-delay requirements for industrial control circuits.

ABB CT-SDS Star-Delta Timer Relays

The CT-SDS series is designed specifically for star-delta motor starting.

Main models include:

• CT-SDS.22
• CT-SDS.23

The timer controls the changeover from star to delta during motor starting, removing the need to create the timing sequence with separate control components.

CT-SDS.23 is available for higher control supply voltages and provides adjustable star-delta timing.

Technical Specifications

• Product family: ABB CT-S
• Product type: Electronic timer relay
• Single-function and multifunction models
• Timing range: 0.05 seconds to 300 hours on applicable models
• Multifunction timers: Available
• ON-delay timers: Available
• OFF-delay timers: Available
• Impulse and flasher timers: Available
• Star-delta timers: Available
• Wide supply versions: Up to 24–240 V AC/DC on applicable models
• Output contacts: 1 or 2 changeover contacts depending on model
• Star-delta versions: Dedicated output arrangement
• Screw terminal versions: S suffix
• Push-in terminal versions: P suffix
• Remote potentiometer connection on applicable models
• LED operating indication
• DIN rail mounting
• Compact 22.5 mm housing on main CT-S models

ABB CT-S Screw & Push-In Terminal Versions

Most CT-S timers are available with two connection options.

S versions – Screw terminals

Examples:

• CT-MVS.21S
• CT-MFS.21S
• CT-ERS.21S
• CT-APS.21S
• CT-SDS.22S

P versions – Push-in terminals

Examples:

• CT-MVS.21P
• CT-MFS.21P
• CT-ERS.21P
• CT-APS.21P
• CT-SDS.22P

This allows panel builders to select the terminal style that matches their wiring practice.

Features

• Wide timing range for different control applications
• Single-function and multifunction timer options
• ON-delay and OFF-delay models
• Star-delta motor starting timers
• Pulse and flasher functions
• Wide AC/DC supply versions available
• Screw and push-in terminal options
• Adjustable timing from the front of the relay
• LED indication for operating status
• DIN rail mounting
• Compact design for industrial control panels
• Suitable for OEM and machine-building applications
• Remote potentiometer connection on selected models

ABB CT-S Timer Relays for Motor Control

Timer relays are widely used in motor control panels.

ABB CT-S timers can be used for:

• Delayed motor starting
• Sequential motor starting
• Star-delta changeover
• Pump sequencing
• Fan run-on delay
• Conveyor timing
• Compressor control
• Motor shutdown delay

The CT-SDS series is particularly useful for star-delta starters, while CT-ERS and CT-APS models cover normal ON-delay and OFF-delay requirements.

ABB Multifunction Timer Relays

Where several timing functions may be required, a multifunction relay such as CT-MVS.21 or CT-MFS.21 can reduce the need to keep different dedicated timers for every application.

These models are useful for panel builders and maintenance teams working with different types of machinery and control circuits.

The timing function and time range can be selected according to the application, making one relay suitable for several control jobs.

Applications

ABB CT-S electronic timers are used in:

• Industrial control panels
• PLC and automation panels
• MCC panels
• Motor starter panels
• Star-delta starters
• Pump control systems
• Compressor panels
• Conveyor systems
• Packaging machinery
• Material handling equipment
• Process plants
• HVAC systems
• Fans and blowers
• Lighting control
• Industrial ovens
• Machine tools
• Manufacturing equipment
• OEM machinery
• Water treatment plants
• Building automation
• Alarm and signalling circuits
• Sequential control systems

Choosing the Correct ABB CT-S Timer Relay

The correct timer depends mainly on the required timing function.

For a simple delayed start, an ABB CT-ERS ON-delay timer can be considered.

For delayed switching after the control signal is removed, the CT-APS or CT-ARS ranges are suitable.

For several functions in one relay, CT-MVS, CT-MFS, CT-MXS or CT-MBS models provide greater flexibility.

For star-delta motor starting, CT-SDS is the dedicated timer range.

For quotation, buyers should provide:

• Complete ABB CT-S model number
• Required timing function
• Timing range
• Control supply voltage
• Output contact requirement
• Screw or push-in terminals
• Quantity
• Destination country

Looking for ABB CT-S Electronic Timer Relays?

We supply ABB CT-S electronic timer relays for industrial automation, motor control, machine building, panel manufacturing, OEM projects and export requirements.

Enquiries are welcome for ABB CT-MVS, CT-MFS, CT-MXS, CT-MBS, CT-WBS, CT-ERS, CT-APS, CT-AHS, CT-ARS and CT-SDS timer relays.

For an ABB CT-S timer relay supplier and exporter from India, ABB multifunction timer, ON-delay timer, OFF-delay relay, star-delta timer or CT-MVS21 / CT-MFS.21 requirement, send the complete model, supply voltage, quantity and destination country for quotation.