An electrical cord having improved safety features comprises a plug having a body portion surrounding respective ends of first, second, and third electrical wires. A live receptacle is in electrical communication with the end of the first electrical wire. A neutral receptacle is in electrical communication with the end of the second electrical wire. A ground receptacle is in electrical communication with the end of the third electrical wire. The body portion surrounds and maintains the live, neutral, and ground receptacles in spaced apart orientation corresponding to blades on an electrical plug. An indicator is provided to indicate a state of the plug in which electricity is supplied to the plug in a proper polarity.

A connector assembly for a portable field device testing includes a two-wire communication line to provide communication between a handheld maintenance tool and a field device, a first two-prong plug to provide power and communication signals to the field device and a shunt plug to provide power to the field device using the two-wire communication line.

A connector is configured such that a fitting-side component (10) is fit into a receiving-side component (20). The fitting-side component (10) includes a block-shaped main body (11) and a lock (15) standing on an outer surface of the main body (11). The receiving-side component (20) includes a receptacle (21) open forward and externally fittable to the fitting-side component (10). A locking surface (16) is provided on a surface of the lock (15) facing an opening side of the receptacle (21) in a fitted state of the fitting-side component (10) and the receiving-side component (20). The locking surface (16) stands substantially at a right angle to a separating direction from the receiving-side component (20). The receiving-side component (20) includes a lock projection (35) projecting on an inner surface of the receptacle (21) for locking the locking surface 16 from the opening side of the receptacle (21).

An electrical cord having improved safety features comprises a plug having a body portion surrounding respective ends of first, second, and third electrical wires. A live receptacle is in electrical communication with the end of the first electrical wire. A neutral receptacle is in electrical communication with the end of the second electrical wire. A ground receptacle is in electrical communication with the end of the third electrical wire. The body portion surrounds and maintains the live, neutral, and ground receptacles in spaced apart orientation corresponding to blades on an electrical plug. An indicator is provided to indicate a state of the plug in which electricity is supplied to the plug in a proper polarity.

An electrical cord having improved safety features comprises a plug having a first body portion surrounding respective first ends of first, second, and third electrical wires. A live blade is in electrical communication with the first end of the first electrical wire. A neutral blade is in electrical communication with the first end of the second electrical wire. A ground pin receptacle is in electrical communication with the first end of the third electrical wire. A removable ground pin is configured to be removably secured within the ground pin receptacle to place the ground pin receptacle and third electrical wire in electrical communication with the ground pin. The first body portion surrounds and maintains the live blade, neutral blade, and ground pin receptacle in spaced apart orientation corresponding to sockets on an electrical outlet.

An electrical cord having improved safety features comprises a plug having a first body portion surrounding respective first ends of first, second, and third electrical wires. A live blade is in electrical communication with the first end of the first electrical wire. A neutral blade is in electrical communication with the first end of the second electrical wire. A ground pin receptacle is in electrical communication with the first end of the third electrical wire. A removable ground pin is configured to be removably secured within the ground pin receptacle to place the ground pin receptacle and third electrical wire in electrical communication with the ground pin. The first body portion surrounds and maintains the live blade, neutral blade, and ground pin receptacle in spaced apart orientation corresponding to sockets on an electrical outlet.

A connector assembly for a portable field device testing includes a two-wire communication line to provide communication between a handheld maintenance tool and a field device, a first two-prong plug to provide power and communication signals to the field device and a shunt plug to provide power to the field device using the two-wire communication line.

A plug for connecting to an Internet-of-Things device is provided. The plug has a housing and a printed circuit board with a first and second end. The printed circuit board is provided in the housing. The first end of the printed circuit board is connected to a hybrid single pair Ethernet cable. The second end of the printed circuit board is provided with a plug-in face with contact surfaces, by means of which the plug can be coupled to the Internet-of-Things device. The plug also has an EMC protection unit in or on the printed circuit board.

A connector and a method of manufacturing the same are disclosed. The connector includes a module including at least one protection device and a connector frame formed by a mold, and the module is buried in the mold. The connector further includes a plurality of connection pins that are connected to the connector frame, and each of the plurality of connections pins has an exposed portion. Each of the plurality of connection pins is exposed, and at least a first set of the plurality of connection pins is electrically connected to the at least one protection device.

A connector is configured such that a fitting-side component (10) is fit into a receiving-side component (20). The fitting-side component (10) includes a block-shaped main body (11) and a lock (15) standing on an outer surface of the main body (11). The receiving-side component (20) includes a receptacle (21) open forward and externally fittable to the fitting-side component (10). A locking surface (16) is provided on a surface of the lock (15) facing an opening side of the receptacle (21) in a fitted state of the fitting-side component (10) and the receiving-side component (20). The locking surface (16) stands substantially at a right angle to a separating direction from the receiving-side component (20). The receiving-side component (20) includes a lock projection (35) projecting on an inner surface of the receptacle (21) for locking the locking surface 16 from the opening side of the receptacle (21).