D4GL-2AFG-A4

Ingress Protection:	IP67 - Dust Tight, Waterproof
Mechanical Life:	1,000,000 Cycles
Electrical Life:	150,000 Cycles
Operating Position:	--
Operating Temperature:	-10°C ~ 55°C
Overtravel:	--
Differential Travel:	--
Pretravel:	0.394" (10.0mm)
Release Force:	1530gf
Operating Force:	4079gf
Features:	LED Indicator
Series:	D4GL
Termination Style:	Screw Terminal
Mounting Type:	Chassis Mount
Actuator Type:	Panel Disconnect
Voltage Rating - AC:	240V
Current Rating:	750mA (AC)
Switch Function:	On-Off, Off-On
Circuit:	DPST-NO/NC (DB/DM) x 2
Part Status:	Obsolete
Packaging:	Bulk

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Snap action limit switches are specialized switches designed to be actuated by physical contact with an object. D4GL-2AFG-A4 is an example of one such switch and is used in numerous applications; this article will discuss its application fields and the working principles of the switch.

The D4GL-2AFG-A4 is a low cost general purpose switch suitable for most applications. It is a single pole double throw (SPDT) switch and has two normally open (N/O) and two normally closed (N/C) contacts. This switch has two operating modes: momentary and maintained. In addition, it can be used to detect the presence or absence of an object, limit the motion of an object, or start and stop a mechanical motion.

The D4GL-2AFG-A4 is suitable for a wide range of applications including monitoring systems, automation machines, material handling, vehicle and automotive systems, public transportation systems, food production, and medical equipment. Examples of its use include elevators, escalators, automatic doors, and electric vehicles. In automotive applications, the switch can be used to prevent unauthorized access to the vehicle, and to detect the presence of an object.

The working principle of the D4GL-2AFG-A4 is that when the actuator arm or plunger of the device is moved by the object it contacts, it causes a mechanical contact between two poles of the switch. The resulting contact causes a change in the state of the switch, typically from open to closed or vice versa. This also causes a corresponding change in the electrical circuit, activating or deactivating the connected device or machinery.

The specific operating characteristics of the D4GL-2AFG-A4 switch will depend on the type of actuator selected. Momentary switching can be achieved with a plunger, lever, or toggle type actuator, while maintained switching is made possible by rotary types of actuators. The actuation can also be adjusted using a variety of spring tensioning systems.

The advantages of the D4GL-2AFG-A4 switch range from its low cost and small size to its easy installation and general purpose use. It can be used in a wide range of applications and is well-suited for industrial and commercial applications. The switch is also robust and reliable and can operate in a variety of environmental conditions.

In conclusion, the D4GL-2AFG-A4 is a low cost, general purpose snap action limit switch suitable for a wide range of environments and applications. Its SPDT design with two normally open and two normally closed contacts make it an ideal choice for controlling and monitoring machinery and equipment. It is easy to install and adjust and is an efficient and reliable switch.

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