KJT heavy-duty limit switch is a mechanical control switch, which is used for conveyor belt deviation prevention, crane over-roll protection, and rope pull switch. Taking advantage of its high reliability, it is widely used in steel equipment, large conveying machinery, loading and unloading machinery and cement equipment. Resistant to harsh environments. The glass sealed contacts are filled with inert gas and are not affected by the environment. Resistant to vibration, impact, and wide range of applications.

Product parameters
model	TK 441-11Y-T-M20
Principle of action	Mechanical
Shell raw materials	Gray cast iron, galvanized
Contact material	silver
gross weight	1,340g
Normally closed quantity (NC)	1
Normally open quantity (NO)	1
B 10D normally closed contact (NC)	2,000,000 operations
operating units	Offset roller lever
Roller material	brass
Mechanical life	10,000,000 operations
action angle, Counting from the left side of the switch shaft	45°
action angle, Counting from the right side of the switch shaft	30°
contact open circuit	2×6mm
Minimum drive speed	1mm/min
Maximum action speed	0.5m/sec
Notice	Action speed: Driving speed of the vertical drive angle switching axis
Circuit connection	Screw connection M20 x 1.5
Minimum cable cross-section	1.5mm²
Maximum cable cross section	2.5mm²
Notice	Cable part: including conductor ferrules
Wire cross section	13 AWG
Product Size
length, width and height	63mm*106mm*173mm
Caster width	6.5mm
Caster diameter	25mm
Application environmental conditions
Protection level	IP65
ambient temperature	‘-40 ... +200°C
Rated insulation voltage	400 VAC
Rated impulse withstand voltage	6kV
Electrical data
Thermal test current	16A
Application categories	AC-15: 400 V / 4 A
switching element	Normally open contact, normally closed contact
Switching principle	slow movement
Precautions
Starting from the right side should be avoided as this shortens the mechanical life of the position switch