0
Limit switch is one type Of " Contact Sensor" , In that there is Normally Open Contact & Normally Close Contact, In limit switch there is Plunger it is Directly Connected to NO & NC Contact if we press the plunger NO contact become NC & NC contact become NO, Working Principle same as Contactor ( DOL starter ) main difference is in contactor There is Coil to attract the Plunger But In Limit Swict Plunger is Operated Mecanically.Limit Switches is used mainly for Safety Purpose & to take Feed back for PLC in Automation industries........
Source(s):In My Plant I have installed limit Switches..A limit switch is a switch, usually mechanical, that is actuated by a moving part of some machine. Its operation is much like any other switch in that there are contacts that move when a plunger or lever on the outside of the switch is pushed. Internally there is an over center spring mechanism that snaps the switch open or shut in response to a gradual motion of the plunger or lever.
Many limit switches have three terminals. One is the normally closed contact, another the normally open contact, and the third is the common that switches between these two as the mechanism is moved.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is the construction and working principle of kaplan turbine?
dfdfdfd
What is the working principle of speedometer?
this is good to know that there is a way i can find somthing usuful for mi studies
What is working principle of inverter welding machine?
Digital Control of welding when welding
Working of pelton turbine?
It works as the principle according to Newton's second law of motion
Working principle of shell and tupe heat exchanger?
to cool hot fluit at certain temperature with the help of cold fluid
What is the principle of working venturimeter?
What is the working principle of venturimeter?
What is working principle?
A working principle is a regulation or rule that is used so that work can be done. This is a general phrase that can be used in any circumstance from the working principle of a motor, to the working principle of a solar cells.
Switches not working properly air condition?
switches for my aircondition Isuzu ascender
What are the basic principles on which a computer works?
On the basis of working principle computer are classified in to three types Ana log computer.
How do LAN switches work exactly?
LAN stands for Local Area Network. LAN switches work when switches are configured to limit broadcast levels. LAN switches are produced by the company Cisco.
What does principle?
A principle is a way of working or ethical standards.
1 Explain the working principle of a milling machine?
1. Explain the working principle of a milling machine?
Explain the principle and working of a nuclear reactor with a neat diagram?
explan working and principle of nuclear reacter
What is the working principle of vibration sensor?
piezo electric principle
What is the working principle of digital computer?
De Mogan's Principle
What are working principle of a robotic total station?
principle of a totalstation
How do you calculate working load limit?
There are several ways to calculate working load limit. One of these includes Minimum Breaking Load (MBL) divided by Working Load Limit (WLL) equals Working Load Limit (WLL).
