In electronics, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts. Each set of contacts can be in one of two states: either 'closed' meaning the contacts are touching and electricity can flow between them, or 'open', meaning the contacts are separated and nonconducting.
A switch may be directly manipulated by a human as a control signal to a system, such as a computer keyboard button, or to control power flow in a circuit, such as a light switch. Automatically-operated switches can be used to control the motions of machines, for example, to indicate that a garage door has reached its full open position or that a machine tool is in a position to accept another workpiece. Switches may be operated by process variables such as pressure, temperature, flow, current, voltage, and force, acting as sensors in a process and used to automatically control a system. For example, a thermostat is an automatically-operated switch used to control a heating process. A switch that is operated by another electrical circuit is called a relay. Large switches may be remotely operated by a motor drive mechanism. Some switches are used to isolate electric power from a system, providing a visible point of isolation that can be pad-locked if necessary to prevent accidental operation of a machine during maintenance, or to prevent electric shock.

Limit Switch

TZ-8 Limit SwitchTZ-8 Limit Switch
  • Double circuit type of limit switch
  • Highly rigid construction, consists of intensive plastic and aluminum cast (Head and cover snugly fit in box)
  • Small volume, water-proof and oil-proof construction
  • Built-in basic switch with double spring mechanism, longer mechanical life
  • Smooth operation with greater OT
  • Easy-to-wire circuit opening design
  • Wide varity of actuators, easily use
  • CSA Limit SwitchCSA Limit Switch
  • Strong metal outer shell, swing arm max. 95
  • Long life (20, 000, 000 mechanical operations)
  • Stainless steel idler wheel, punch and spring
  • Selective PG11 cable gland
  • CLS Limit SwitchCLS Limit Switch
  • Economical & plastic type
  • Stainless steel roller, punch and spring
  • Swing amplitude, extra large ± 95°
  • PG13.5 cable gland that can be equipped.
  • CWL Limit SwitchCWL Limit Switch
  • Double-circuit type of limit switch, is widely used
  • With strong aluminum cast outer shell
  • High mechanical strength
  • Water-proof, oil-proof construction
  • Structure preventing oil, water and pressure
  • Indicating plate with setting position is installed in it, so it is easy to maintain
  • Various of actuators is taken convenience for using
  • Built-in contact stand has double-spring, so it has long mechanical life
  • CHL Limit SwitchCHL Limit Switch
  • Metallic bottom shell
  • Stainless steel roller, punch and spring
  • Strong electric property 10A, 250V, for 500,000 times
  • TZ-6 Sealed Limit SwitchTZ-6 Sealed Limit Switch
  • Built-in CM miniature limit switch, strong aluminum cast shell, design for water-proof and oil-proof
  • It is the same as CM micro switch in the rated value and characteristics
  • Various of actuators that are taken convenience for using
  • Each switch is equipped with cable fixator, including rubber boot, metallic washer, plastic screw nut
  • CZ-3 Compact Prewired Limit SwitchCZ-3 Compact Prewired Limit Switch
  • DPDS limit switch for multiple applications
  • Rugged aluminum alloy diecast housing
  • High mechanical strength.
  • Oil resistance,waterproof and dustproof structur
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