TFCCH8SP004AC

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Snap-action, limit switches are relatively self-explanatory devices. They are used to detect the presence of an object, a voltage or other physical/electrical/chemical condition within a certain range and then trigger some sort of action.The TFCCH8SP004AC is a 3-pole snap-action, limit switch designed for applications like HVAC, lighting control and machine control. It contains two auxiliary contacts, two normally open (NO) contacts, two normally closed (NC) contacts and two common contacts. In addition, the switch is enclosed in a UL 94 V-0 flame-retardant casing, making it suitable for a wide range of applications.

The switch\'s primary function is to detect the presence or movement of an object within a certain range, then trigger an action. For example, in a lighting system, it is used to detect whether a light is on or off. In a machine control system, it can detect the position of a machine component and trigger an action accordingly. One common application of the switch is in thermostats, where it determines whether the temperature is within the desired range and triggers an action.

The TFCCH8SP004AC works on the principle of a snap-action, or "bistable" switch. This means that the switch can be toggled between two discrete states, a "free" state (in which the switch is open) and a "pushed" state (in which the switch is closed). This is achieved by the use of a "blade" which is pushed and held in either of the two positions by spring-loaded levers. When the switch is in the pushed state, it will remain in that state even after the pushing force is removed, until it is manually reset. This type of switch is ideal for a range of applications, as it is able to accurately detect the presence or absence of an object and trigger an action accordingly.

In terms of specifications, the TFCCH8SP004AC has a contact rating of 5A 250V AC/DC; a maximum switching current of 1.5A at 24V DC and a maximum switching voltage of 250V AC at 2A. The switch has a travel distance of 5mm and a contact travel time of 4ms. The switch is also capable of operating from -10°C to +85°C.

The TFCCH8SP004AC is an ideal solution for a range of applications, such as HVAC, lighting control, machine control and thermostats. It is capable of detecting the presence or absence of an object, voltage or other physical/electrical/chemical conditions, then triggering an action accordingly. Moreover, its UL 94V-0 rated enclosure and wide temperature range make it suitable for a variety of environments and applications.

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