ZKF series auxiliary switchDetailed product description：

The ZKF series auxiliary switch adopts the same appearance and size as the F series Tianguan to achieve full compatibility. The external dimensions of ZKF6 switch and F6 new auxiliary switch are completely consistent, with small size and higher reliability.
The core components of the ZKF series switches are sealed as a whole to enhance reliability. The moving part - the rotor - is suspended in the fixed disk by the action of a magnetic field, and there is basically no friction with the fixed disk. Therefore, the rotation of the shaft is light and flexible, and there is no situation of large mechanical jamming.
The head of the switch adopts a quick action mechanism. When the shaft rotates to 75 degrees, under the action of the energy storage spring, the movable block drives the rotor to move quickly and reliably stay at the end position. The wiring terminal adopts composite slot combination screws, and the pressure washer automatically rises and falls with the tightening and loosening of the screws, making wiring convenient.

The ZKF series auxiliary switch has a series of advantages compared to the F series mechanical contact auxiliary switch commonly used in China recently:
1. High reliability of electrical contact
The on-off of F-series switch contacts is achieved through mechanical friction contact, and the generated arc causes the contact surface to burn black, seriously affecting the contact reliability. The contacts of the ZKF series switches work in vacuum or inert gas, and basically do not generate arcs, ensuring good electrical contact reliability.
2. High mechanical strength, no need for maintenance
The components of mechanical switches are relatively scattered and require frequent maintenance due to their inherent unreliability. The ZKF series switches seal the core components of the vacuum tube and the connecting copper sheet with resin in a silent disc, forming a whole layer. Its mechanical emphasis is high, fundamentally eliminating the possibility of unreliable contact, thus saving the trouble of frequent maintenance.
3. Long lifespan and strong anti-interference ability
The lifespan of the vacuum tube of the ZKF series switch is 100000 times of breaking capacity, far higher than the thousands of times of mechanical contacts. The permanent magnetic steel that controls the on-off of the switch is made of the best magnetic material - neodymium iron boron, which has strong magnetism and never demagnetizes. The structure of the switch itself can effectively resist the interference of various magnetic fields and electric fields.
4. Strong adaptability
The ZKF series switches are not limited by dusty environments due to their sealing properties; Good on/off performance can be ensured even in humid and corrosive environments with a wide temperature range. On the contrary, switches with mechanical contacts quickly experience poor contact due to contact corrosion in corrosive environments.
Considering the need for users to replace old switches and adapt to various installation scenarios, the ZKF series switches have taken into account different installation methods, rotation angles, and center height requirements. It can almost replace all auxiliary switches of the F series.

project	L	L1
Rated voltage (AC/DC) V	two hundred and twenty
Rated breaking power W	sixty	two hundred and fifty
Maximum breaking current A	three	five
Maximum conduction current A	five
Breakdown voltage between contacts V	Communication>300 (DC>400)
Contact resistance Ω	one hundred
Insulation resistance Ω	one thousand and ten
1-minute power frequency withstand voltage	two thousand
Contact lifespan times	one hundred and five
Protection level	IP55
Anti-interference performance	The reliability of contact continuity is not affected by the interference of common mode, differential mode, radiated electromagnetic field, and electrostatic field
Layer combination	Any combination of layers 2-8
Environmental temperature ℃	(-)30-(+)60
environmental conditions	Relative humidity not exceeding 95%