D4NH-4BBC-NPT

Ingress Protection:	IP67 - Dust Tight, Waterproof
Mechanical Life:	1,000,000 Cycles
Electrical Life:	300,000 Cycles
Operating Position:	--
Operating Temperature:	-30°C ~ 70°C
Overtravel:	--
Differential Travel:	--
Pretravel:	7°
Release Force:	--
Operating Force:	15gfm
Features:	--
Series:	D4NH
Termination Style:	Screw Terminal
Mounting Type:	Chassis Mount
Actuator Type:	Arm Lever
Voltage Rating - DC:	125V
Voltage Rating - AC:	120V
Current Rating:	10A (AC), 2.5A (DC)
Switch Function:	On-Mom
Circuit:	DPST-NC
Part Status:	Active
Packaging:	Bulk

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1. Snap Action, Limit Switch: D4NH-4BBC-NPT
2. Application Field

The D4NH-4BBC-NPT snap action limit switch is an electronic switch device designed to detect when a movable object has reached a certain point. It is used in a wide variety of applications ranging from industrial automation to home automation. The switch is designed to detect when a moving object, such as a door or window, reaches its limit point. When this occurs, the switch will automatically activate and can trigger an alarm or initiate a sequence of events, depending on the application.The D4NH is a versatile limit switch, due to its small size and multiple input capabilities. It has a wide variety of applications in machines such as conveyor belts, CNC machines, pick-and-place robots, solenoid valves, and others. It can also be used in home automation to detect when a window or door has been opened or closed. The switch is also useful in medical devices, such as patient beds, wheelchairs, and other equipment. The D4NH-4BBC-NPT is capable of detecting even the smallest of movements and is highly durable. Its small size makes it ideal for applications where a large switch device would not be practical. The switch is constructed with a hard plastic shell and is rated IP67 for water and dust protection.

3. Working Principle

The working principle of the D4NH-4BBC-NPT snap action limit switch is relatively simple. The switch consists of two electromagnets, one fixed and one movable. The movable electromagnet is attached to a spring-loaded lever, which is in contact with a contact point. When the movable object reaches its limit point, the lever is displaced and the contact point is activated, closing the circuit and activating the switch.The switch can be configured to detect either the rising or falling edge of the voltage, depending on the application. For example, a rising edge would detect when the movable object is moving away from the limit point, whereas a falling edge would detect when it is approaching. The switch also has a sensitivity adjustment, allowing it to detect even small changes in movement.In addition to its simple operating principle, the D4NH-4BBC-NPT also benefits from its robust construction. The hard plastic casing houses the components securely and is rated IP67 for dust and water protection. Additionally, the switch is designed with an adjustable reset time, allowing users to customize the reset rate to their application.In conclusion, the D4NH-4BBC-NPT snap action limit switch is a simple and reliable solution for detecting when a movable object has reached its limit point, enabling users to accurately monitor and control the position of the movable object. It offers a wide range of applications, from industrial automation to home automation, and is capable of detecting even the smallest of movements.

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