Modular Contactor | 2P | 2NO | 25A | 230VAC | DIN Rail | Schneider Electric | Acti9 | iCT | A9C21732

Technical Specifications

Manufacturer: Schneider Electric
Series: Acti9
Model: iCT
Code: A9C21732
Product type: Modular contactor
Poles: 2P
Contact type: 2NO (2 Normally Open)
Rated current AC-7A: 25 A
Rated current AC-7B: 8.5 A
Control voltage (Uc): 230-240V AC
Rated operational voltage (Ue): 250V AC
Network frequency: 50 Hz
Insulation voltage (Ui): 500V AC
Impulse withstand voltage (Uimp): 4 kV
Maximum load: 1.2 kW
Power consumption: 2.7 VA
Inrush power: 9.2 VA
Mounting: 35 mm DIN rail
Occupied space: 2 modules (18 mm)
Width: 18 mm
Height: 81 mm
Depth: 60 mm
Mechanical durability: 1,000,000 cycles
Electrical durability AC-7A: 100,000 cycles
Electrical durability AC-7B: 30,000 cycles
Noise level: 30 dB
Protection rating: IP20
Operating temperature: -5°C to +60°C
Storage temperature: -40°C to +70°C
Color: White (RAL9003)
Standard: IEC/EN 61095

Functions

Remote load control: Allows automatic switching of electrical circuits using timers, controllers, thermostats, smart automation systems, or other control devices.
Manual operation: Integrated manual control function allows direct operation of the contactor without a control signal.
Lighting control: Suitable for indoor, outdoor, and commercial lighting systems.
Heating and ventilation automation: Compatible with thermostats and automation systems for heating and ventilation control.
Small motor control: Can be used for switching fans, mixers, and other small single-phase motors.
Contact status indication: Mechanical indicator allows instant verification of contact position.

Applications

For homeowners: A solution for automating electric underfloor heating, water heaters, heat pumps, outdoor lighting, garden lighting systems, and ventilation equipment. Using a contactor can reduce the load on primary control devices and extend their service life.

For electricians: A reliable and commonly used component for residential distribution boards, apartment building common-area systems, commercial lighting control, heating automation, and ventilation control circuits. The compact 2-module housing saves space inside the electrical panel.

For engineers and designers: Suitable for designing energy management systems, automated lighting systems, BMS building management systems, heating and ventilation automation, and electrical panels for commercial and residential buildings. Compliance with IEC/EN 61095 ensures easy integration into professional projects.

Advantages
Schneider Electric quality and reliability
Suitable for lighting, heating, and ventilation systems
Remote and manual control in one device
Mechanical contact position indicator
Compatible with Acti9 accessories
Long electromechanical service life
Low operating noise (30 dB)
DIN rail mounting
Complies with IEC/EN 61095 standard
Disadvantages
IP20 protection – intended for installation inside an electrical panel only
Not suitable for controlling high-power three-phase motors
Control coil operates only with 230-240V AC voltage
No integrated auxiliary contacts (available separately)
Frequently Asked Questions (FAQ)

Is this contactor suitable for underfloor heating control?

Yes. The Schneider Acti9 iCT is commonly used for automatic control of electric underfloor heating, water heaters, and other heating loads.

Can the contactor be controlled by a thermostat?

Yes. The 230-240V AC coil can be controlled by a thermostat, timer, PLC controller, or other automation equipment.

Is this model suitable for fan control?

Yes. The contactor can be used for switching fans, mixers, and other small electric motors.

What is the difference between AC-7A and AC-7B loads?

AC-7A is used for resistive or slightly inductive loads (heating, lighting), while AC-7B is intended for inductive loads such as fans or small electric motors. The rated current of this contactor is 25A AC-7A and 8.5A AC-7B.