D4NL-2DFH-B

Snap Action, Limit Switches

Snap action, limit switches are used in a variety of applications. These switches are equipped with an electromechanical, pressure, or other type of mechanism that triggers the switch when a set point is reached. Generally, snap action switches are made up of a switch shaft, a spring-loaded armature and a contact block. When the switch is triggered, the armature moves, either directly or indirectly, into contact with the contact block, closing or opening the circuit.

D4NL-2DFH-B is a general purpose snap action limit switch with a stainless steel housing. It has a screw clamp termination style and comes with a chrome plated plastic bezel. It has a stainless steel actuator and the contacts are rated for 1 Amp at 20-30 VDC. It is a compact size switch with a 17mm width and 42mm height. The D4NL-2DFH-B is designed for an operational life of 50,000,000 cycles and its maximum operating temperature is 105 deg. C.

The D4NL-2DFH-B switch can be used in a variety of applications, from low-voltage circuit protection to industrial process control. They are well-suited for use in safety systems such as emergency shut-off circuits or circuit breaker interlocking. In door or window mechanisms, the switch can be used to detect open or closed states. For commercial and residential security systems, it can detect whether a door or window has been opened or closed. Additionally, the switch can be used in high-voltage power applications to sense the presence of a circuit being energized or de-energized.

The working principle of the D4NL-2DFH-B switch is as follows: upon closure of the contact block, the armature inside the switch is pushed or pulled, turning the switch shaft and closing the circuit. The switch shaft is connected to the spring-loaded armature inside the switch. When the contact block is open, a small air gap exists between the armature and the contact block. When the contact block is closed, the armature is pulled into contact with the contact block, closing the circuit.

The D4NL-2DFH-B snap action switch is a reliable, cost-effective choice for a variety of applications. It is highly adaptable and can be used in applications that require detection of changes in pressure or current, as well as changes in surroundings such as temperature or light. Its long life makes it an ideal choice in systems where the switch will be triggered frequently or for extended periods of time. Its compact size and versatility make it suitable for use in small, confined spaces.