KJT-MJ 441-11Y Heavy Duty Travel Limit Switch
- ● ：2 cable entries M 20 x 1.5
- ● ：Actuator head repositionable 4 x 90°
- ● ：Metal shell
- ● ：106mm x 99mm x 63mm (basic assembly)
- ● ：Protection grade IP65
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 | MJ 441-11Y |
| Principle of action | Mechanical |
| Shell raw materials | Gray cast iron, galvanized |
| Contact material | silver |
| gross weight | 1,690g |
| 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 | plastic |
| Mechanical life | 5,000,000 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 | 2×2.5mm |
| 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*179mm |
| Caster width | 9mm |
| Caster diameter | 36mm |
| Application environmental conditions | |
| Protection level | IP65 |
| ambient temperature | -30 ... +90°C |
| Rated insulation voltage | 250 VAC |
| Rated impulse withstand voltage | 4kV |
| Electrical data | |
| Thermal test current | 16A |
| Application categories | AC-15: 250 V / 4 A |
| switching element | Normally open contact, normally closed contact |
| Switching principle | quick action |
| Maximum bounce duration | 5 ms |
| Maximum switching time | 35 ms |
| Precautions | |
| Starting from the right side should be avoided as this shortens the mechanical life of the position switch | |
NOTE Switch travel diagram
VS NO contact adjustment range VÖ NC contact adjustable range N After the trip |
Contact closed
Contact open
Set range
breakpoint
Definitely opening order/angle