ER12-40N3PR

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Type:	Handle, Red/Yellow
Moisture Sensitivity Level (MSL):	--
Voltage:	--
Current:	--

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Introduction

Disconnect switches are important components used in various electrical systems and equipment. N3PR series switches are disconnect switches designed and manufactured by EAO, and the ER12-40N3PR switch is one of the most commonly used disconnect switches in the N3PR series. In this article, we will discuss the application fields of the ER12-40N3PR switch and its working principle.

Application Fields of ER12-40N3PR Switches

ER12-40N3PR switches are single-pole single-throw (SPST) switches designed to handle current up to 40 Amps at 24VDC voltage. They are commonly used in various industries as a safety measure to prevent electric shock and isolate a particular system or circuit for maintenance or repair.ER12-40N3PR switches are suitable for use in a variety of applications, such as:

• Electronic control systems
• Industrial machinery
• Control panels and enclosures
• Telecommunication systems
• Railway locomotives
• Medical equipment
• Marine systems

The ER12-40N3PR switch is designed to meet stringent industry standards, including the Release to Work requirements of the NFPA-70E and EN50113. It has a UL rating of UL 98, CSA certification, and a CE rating of EN60947-3.

Working Principle of ER12-40N3PR Switches

The ER12-40N3PR switch is a single-pole single-throw (SPST) switch. It functions by the momentary opening and closing of contact points. When the switch is in the “off” position, the contact points remain open and no electrical current flows. When the switch is in the “on” position, the contact points close and electrical current flows.The ER12-40N3PR switches feature a fail-safe design, meaning that if there is a power failure or the switch is manually turned off, the contact points automatically open to disconnect the circuit. This ensures that no current flows through the circuit if the switch is off.The ER12-40N3PR switch can also be operated remotely using a solenoid actuator. The solenoid is an electric device that creates a magnetic field when electrified, and when the magnetic field is strong enough, it pulls the plunger of the actuator, which causes the switch to change position.

Conclusion

ER12-40N3PR switches are a versatile type of disconnect switch designed to meet stringent industry standards. They are suitable for various applications, and are fail-safe switches to ensure that no current passes through when the switch is turned off. The ER12-40N3PR switch can also be operated remotely using a solenoid actuator.

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