ABB CT-MFS.21P multifunction electronic timer relay with 10 timing functions, 2 C/O outputs, 24–240 V AC/DC supply and adjustable timing from 0.05 s to 300 h.
Why Choose the ABB CT-MFS.21P Multifunction Timer Relay?
The ABB CT-MFS.21P is a compact and versatile multifunction electronic timer relay designed for precise timing and switching control in industrial automation, electrical control and machine systems. As part of the ABB CT-S timer relay range, it provides 10 selectable timing functions, 10 time ranges and two changeover outputs for flexible control applications.
The CT-MFS.21P provides 10 timing functions with selectable ranges from 0.05 s to 300 h. Two control inputs support volt-free triggering, while the second changeover contact can be selected as an instantaneous contact. A remote potentiometer can also be connected for fine adjustment of the time delay.
With a rated control supply voltage of 24–240 V AC/DC and 2 C/O (SPDT) output contacts rated at 250 V / 4 A, the CT-MFS.21P provides flexible timing and switching control in industrial automation and control panels. Its compact 22.5 mm housing with maintenance-free push-in terminals is designed for straightforward DIN-rail installation.
Key Advantages
Versatile multifunction timer relay for industrial automation applications.
10 selectable timing functions for flexible control sequences.
10 time ranges from 0.05 s to 300 h for precise timing adjustment.
24–240 V AC/DC control supply for versatile installation.
2 C/O (SPDT) output contacts rated at 250 V / 4 A.
Volt-free control inputs and optional remote potentiometer connection.
Maintenance-free Easy Connect push-in terminals for fast installation.
Key Features
ABB CT-S timer relay range.
Multifunction electronic timer relay.
10 timing functions.
10 selectable time ranges from 0.05 s to 300 h.
2 C/O (SPDT) output contacts.
24–240 V AC/DC rated control supply.
Two control inputs with volt-free (floating) triggering.
Second changeover contact selectable as an instantaneous contact.
Remote potentiometer connection for fine adjustment of the time delay.
Maintenance-free Easy Connect Technology with push-in terminals.
Status indication using front-face LEDs.
Compact DIN-rail mounting design.
Flexible Timing Control for Industrial Automation
Multifunction timer relays such as the ABB CT-MFS.21P provide configurable timing sequences within electrical control and automation systems. By offering multiple timing functions and selectable time ranges, the relay can be configured for different switching and delay requirements without requiring separate timer relay types for each application.
The CT-MFS.21P combines flexible timing adjustment with two changeover outputs, volt-free control inputs and an optional remote potentiometer connection. Its compact DIN-rail format and push-in terminals allow straightforward integration into modern industrial control panels and automation systems.
Typical Applications
Industrial automation and control panels.
Machine control and sequencing systems.
Motor control and switching applications.
Conveyor and material handling equipment.
Pumps, fans and ventilation systems.
Production and process machinery.
Control systems requiring configurable timing functions.
Technical Specifications
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Mounting Type
DIN rail
Device Type
Multifunction timer
Timing Function
Multifunction
Timing Range
0.05 s – 300 h
Switching Current (A)
4 A
Series
CT-S Time Relays
Product type
Multifunction electronic timer relay
Timer functions
10
Output
2 C/O (SPDT) contacts
Contact rating
250 V / 4 A
Rated control supply voltage
24–240 V AC/DC
Time range
0.05 s to 300 h
Number of time ranges
10
Control inputs
2 volt-free (floating) inputs
Remote potentiometer
Supported
Terminal technology
Push-in terminals
Mounting type
DIN rail mounting
Width
22.5 mm
Height
85.6 mm
Depth
103.7 mm
Product net weight
0.133 kg
Protection rating
IP50 housing, IP20 terminals
Operating temperature
-40 to +60 °C
Storage temperature
-40 to +85 °C
Rated frequency
50 / 60 Hz / DC
ABB order code
1SVR740010R0200
EAN
4016779851572
Frequently Asked Questions
What is the ABB CT-MFS.21P used for?
The ABB CT-MFS.21P is a multifunction electronic timer relay used to provide configurable timing and switching control in industrial automation, machine control and electrical systems.
How many timing functions does the CT-MFS.21P provide?
The CT-MFS.21P provides 10 selectable timing functions with 10 time ranges covering 0.05 s to 300 h.
What supply voltage does the CT-MFS.21P require?
The CT-MFS.21P operates with a rated control supply voltage of 24–240 V AC/DC.
What type of outputs does the CT-MFS.21P have?
The timer relay has 2 C/O (SPDT) output contacts rated at 250 V / 4 A.
Can the CT-MFS.21P use a remote potentiometer?
Yes. The CT-MFS.21P supports connection of a remote potentiometer for fine adjustment of the time delay.
Trusted by Industrial Automation Engineers
ABB CT-S timer relays are designed to provide reliable, flexible timing control for industrial automation, electrical control panels and machine control applications.
Mounting Type
DIN rail
Device Type
Multifunction timer
Timing Function
Multifunction
Timing Range
0.05 s – 300 h
Switching Current (A)
4 A
Series
CT-S Time Relays
Product type
Multifunction electronic timer relay
Timer functions
10
Output
2 C/O (SPDT) contacts
Contact rating
250 V / 4 A
Rated control supply voltage
24–240 V AC/DC
Time range
0.05 s to 300 h
Number of time ranges
10
Control inputs
2 volt-free (floating) inputs
Remote potentiometer
Supported
Terminal technology
Push-in terminals
Mounting type
DIN rail mounting
Width
22.5 mm
Height
85.6 mm
Depth
103.7 mm
Product net weight
0.133 kg
Protection rating
IP50 housing, IP20 terminals
Operating temperature
-40 to +60 °C
Storage temperature
-40 to +85 °C
Rated frequency
50 / 60 Hz / DC
ABB order code
1SVR740010R0200
EAN
4016779851572
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