BS EN 2349-301 is a standard that covers pick up and drop out voltage for relays and contactors to protect the electrical systems from arc faults and overloads.
BS EN 2349-301 specifies a method for testing the pick-up voltage and drop-out voltage of relays and contactors.
BS EN 2349-301 shall be used together with EN 2349-100.
BS EN 2349-301 on pick up and drop out voltage for relays and contactors apply to:
A contactor links two poles without using a common circuit, whereas a relay uses a common contact to connect to the neutral position. The voltage at which the relay is activated is called pick up voltage, and the voltage at which the relay is de-energised is called drop out voltage.
BS EN 2349-301 provides users guidance on a method for testing the pick-up voltage and drop-out voltage of relays and contactors. BS EN 2349-301 also provides users with a step-by-step procedure for the method, enabling users to do the method correctly.
With obedience and compliance to BS EN 2349-301, users can develop and assess relays and contactors that are used to operate contact terminals and transmit power from one electrical device to another.
EN 2349-301:2006