# US 10,770,885 B2 · Ground fault circuit interrupter with combined tripping curve for electric vehicle charging

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- Number: US 10,770,885 B2
- Document ID: US10770885B2
- Status: Granted
- Kind: B2
- Application number: 15/693,943
- Filed: 2017-09-01
- Published: 2018-03-08
- Granted: 2020-09-08
- Earliest claimed: 2016-09-02
- Assignees: Bender GmbH & Co. KG
- Applicants: Bender GmbH & Co. KG
- Inventors: Winfried Moell; Michael Kammer; Florian Habel; Matthias Jost
- Web page: https://patentgrep.com/patent/US10770885B2

## CPC

- H02H 3/16: responsive to fault current to earth, frame or mass (with balanced or differential arrangement H02H3/26 {; monitoring earth connection H02H5/105})
- H02H 3/006: {Calibration or setting of parameters}
- H02H: EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS (indicating or signalling undesired working conditions G01R, e.g. G01R31/00, G08B; locating faults along lines G01R31/08; emergency protective devices H01H)

## Abstract

A ground fault circuit interrupter with a residual current device is suggested which comprises a tripping characteristic having a combined time-current curve that implements a minimum tripping time value of a first time-current curve and a second time-current curve for each current value.

## Claims

### Claim 1

Ground fault circuit interrupter (GFCI) with a residual current device comprising a tripping characteristic having a combined time-current curve that implements for each current value a minimum tripping time value of a first time-current curve and a second time-5 current curve.

### Claim 2 (depends on 1)

The ground fault circuit interrupter according to claim 1, wherein the first time-current curve is a time-current curve according to the standard UL 2231-2 and the second time-current curve is a time-current curve according to the standard IEC 62752-1.