Title:
Field apparatus carrying a serge protective device and a serge protective device
Document Type and Number:
Japanese Patent JP6222496
Kind Code:
B2
Abstract:
A surge protection device includes: a pair of terminal fittings to be connected to a pair of power supply terminals of a field device together with a power supply cable; a circuit board on which a surge protection element is mounted, the surge protection element including two electrodes connected to the pair of terminal fittings and a ground electrode configured to cause a surge current to flow to a ground when a surge voltage is applied between the two electrodes; an earth wiring cable connected to the ground electrode; and a main body that houses the circuit board, the main body being configured such that the pair of terminal fittings and the earth wiring cable protrude from an inside of the main body to an outside.
Inventors:
Toshiya Buta
Application Number:
JP2016030148A
Publication Date:
November 01, 2017
Filing Date:
February 19, 2016
Export Citation:
Assignee:
Yokogawa Electric Corporation
International Classes:
H02H9/04
Domestic Patent References:
| JP9082454A | ||||
| JP58076154U | ||||
| JP7212971A | ||||
| JP8212905A |