D4NL-2HFA-BS

Ingress Protection:	IP67 - Dust Tight, Waterproof
Mechanical Life:	1,000,000 Cycles
Electrical Life:	500,000 Cycles
Operating Position:	--
Operating Temperature:	-10°C ~ 55°C
Overtravel:	--
Differential Travel:	--
Pretravel:	0.354" (9.0mm)
Release Force:	1530gf
Operating Force:	3059gf
Features:	LED Indicator
Series:	D4NL
Termination Style:	Screw Terminal
Mounting Type:	Chassis Mount
Actuator Type:	Panel Disconnect
Voltage Rating - DC:	250V
Voltage Rating - AC:	240V
Current Rating:	3A (AC), 270mA (DC)
Switch Function:	On-Off
Circuit:	3PST-NC + DPST-NC
Part Status:	Active
Packaging:	Bulk

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Snap Action, Limit Switches: D4NL-2HFA-BS

Snap action, limit switches are incredibly helpful and versatile devices. Different models serve all kinds of applications, from light-duty on/off signaling to heavy-duty machine control and safety. They can be as basic as a low-cost household light switch, or as complex as an industrial-grade, programmable control solution. One of the top-of-the-line snap action, limit switch models is the D4NL-2HFA-BS.

Applications of the D4NL-2HFA-BS

The D4NL-2HFA-BS is a heavy-duty model intended for high-precision safety controls and applications. It is particularly well-suited for use in situations where sensitivity and response time is critical, such as robotics and machine control. In addition, this model\'s exacting standards make it a great fit for use in high-accuracy settings like medical equipment, food processing plants, and aerospace engineering.

Design Features of the D4NL-2HFA-BS

The D4NL-2HFA-BS comes packaged with a complete set of five terminating plugs and a stainless steel mounting flange. The switch itself is constructed from robust nickel-plated brass and polycarbonate, a tough and reliable combination. The contact blocks are silver-plated and designed to minimize power consumption and interference. Additional features include a dust-proof/moisture-proof seal, an operating temperature range of -25°C (-13°F) to +85°C (185°F), a multi-control terminal style, and a supported voltage rating of up to 250VAC/60VDC.

Working Principle of the D4NL-2HFA-BS

At the heart of the D4NL-2HFA-BS is a specialized snap action, limit switch mechanism that provides reliable operation in a wide range of applications. In its normal state, the switch is in the "off" position. When the switch is actuated—either manually or by an external force—it "snaps" into the "on" position. This unique mechanism reduces wear and tear on the switch over time and provides an unmistakable indicator when the switch is in the "on" or "off" position.In addition to the snap action, limit switch mechanism, the D4NL-2HFA-BS is designed with a specialized tension spring overload release. This overload release serves as a failsafe in the event of unexpected overload conditions. In the event of an overload, the spring will release when the tension level exceeds its rated value, effectively cutting off the circuit and protecting the components inside the switch.

Conclusion

The D4NL-2HFA-BS is a high-end snap action, limit switch model with specialized features to ensure reliable performance in demanding applications. Its rugged construction and advanced design make it ideal for high-precision applications where sensitivity and response time are critical, such as robotics and machine control. Its overload release mechanism makes it a great choice for applications where unexpected overloads are a concern, such as medical equipment, food processing plants, and aerospace engineering.

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