Details

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Working principle                         

The working principle of the contactor: Upon energization, the circuit with current will create a magnetic field and generate sufficient magnetic adhesion to overcome counterforce, close armature and connect the contacts.

When the coil voltage dies out or reduces to a certain value(i.e. at the state of voltage release), for the flux generated at the end face of the armature decreases, the magnetic adhesion becomes weaker than the counterforce generated by the reaction spring, contact spring, etc.

Under the counterforce, the armature will be released and free from the field yoke, and then the contacts will be disconnected.

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Technical parameter                         

Rating (In) AC7A	Control voltage (VAC)(50Hz)	Contact	Width in 9 mm modules
16A 4P	24	4NO	4
	220...240	4NO	4
	220...240	2NO+2NC	4

 

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Connection                    

Power circuit
Voltage rating (Ue)   1P, 2P		250VAC
3P, 4P		400VAC
Frequency		50Hz or 60Hz
Endurance(O-C)
Electrical		100000 cycles
Maximum number of switching operation a day		100
Additional characteristics
Insulation voltage (Ui)		500VAC
Pollution degree		2
Rated impulse withstand voltage(Uimp)		2.5KV(4KV for 12/24/48VAC)
Degree of protection	Device only	IP20
	Device in modular enclosure	IP40
Operating temperature		-5°C~+60°C
Storage temperature		-40°C~+70°C
Tropicalization (IEC 60068-1)		Treatment 2(relative humidity 95% at 55°C)
ELSV compliance(Extra Low Safety Voltage) for 12/24/48vac versions
The product control conforms to the SELV(safety extra low voltage) requirements

 

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Consumption                       

	Raring(In)	Control voltage (VAC)(50Hz)	Consumption		Max.power
	AC7a		Holding	Inrush
4P	16A	24	4.6VA	34VA	1.6w
		220...240	4.6VA	34VA	1.6w
		220...240	4.6VA	34VA	1.6w

 

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Dimension                      

 

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