The charts below detail the Earth Loop impedance (Zs) for the GV4 range for any TN system based on the British Standard BS7671:2008+A3:2015
Two documents are also attached:
1) Sheet with Zs charts of TeSys motor circuit breakers:
- TeSys GV2
- TeSys GV3
- TeSys GV4
- TeSys GV7
- TeSys U
2) Explanation of the calculation of the maximum Earth Loop Impedance
This also includes additional information about:
- Motor Rated devices
- Ambient Temperature
TeSys GV4 Range
Please refer to the charts below that detail the maximum earth loop impedance Zs for 0.4s disconnection time with Uo 230V
| GV4L | ||||
| Reference | Thermal Adjustment Range In | Magnetic Tripping Current Im | Tolerance Im+20% | Maximum Loop Impedance Zs |
| (A) | (A) | (A) | (Ω) | |
| GV4LE02N | 2 | 12 .. 28 | 33.60 | 6.50 |
| GV4LE02S | ||||
| GV4L02N | ||||
| GV4LE03N | 3.5 | 21 .. 49 | 58.80 | 3.72 |
| GV4LE03S | ||||
| GV4L03N | ||||
| GV4LE07N | 7 | 42 .. 98 | 117.60 | 1.86 |
| GV4L07N | ||||
| GV4LE07S | ||||
| GV4LE12N | 12.5 | 75 .. 175 | 210.00 | 1.04 |
| GV4LE12S | ||||
| GV4L12N | ||||
| GV4LE25B | 25 | 150 .. 350 | 420.0 | 0.52 |
| GV4L25B | ||||
| GV4LE25N | ||||
| GV4LE25S | ||||
| GV4L25N | ||||
| GV4LE50B | 50 | 300 .. 700 | 840 | 0.26 |
| GV4LE50N | ||||
| GV4LE50S | ||||
| GV4L50B | ||||
| GV4L50N | ||||
| GV4LE80B | 80 | 480 .. 1120 | 1344 | 0.16 |
| GV4LE80N | ||||
| GV4LE80S | ||||
| GV4L80B | ||||
| GV4L80N | ||||
| GV4L80S | ||||
| GV4LE115B | 115 | 690 .. 1610 | 1932 | 0.11 |
| GV4LE115N | ||||
| GV4LE115S | ||||
| GV4L115B | ||||
| GV4L115N | ||||
| GV4L115S | ||||
| GV4P | ||||
| Reference | Thermal Adjustment Range In | Magnetic Tripping Current Im | Tolerance Im+20% | Maximum Loop Impedance Zs |
| (A) | (A) | (A) | (Ω) | |
| GV4PE02N | 0.8 .. 2 | 34 | 40.80 | 5.36 |
| GV4PE02S | ||||
| GV4P02N | ||||
| GV4PEM02N | ||||
| GV4PEM02S | ||||
| GV4PE03N | 1.4 .. 3.5 | 60 | 72.00 | 3.03 |
| GV4PE03S | ||||
| GV4P03N | ||||
| GV4PEM03N | ||||
| GV4PEM03S | ||||
| GV4PE07N | 2.9 .. 7 | 119 | 142.80 | 1.53 |
| GV4PE07S | ||||
| GV4P07N | ||||
| GV4PEM07N | ||||
| GV4PEM07S | ||||
| GV4PE12N | 5 .. 12.5 | 213 | 255.6 | 0.85 |
| GV4PE12S | ||||
| GV4P12N | ||||
| GV4PEM12N | ||||
| GV4PEM12S | ||||
| GV4PE25B | 10 .. 25 | 425 | 510 | 0.43 |
| GV4PE25N | ||||
| GV4PE25S | ||||
| GV4P25B | ||||
| GV4P25N | ||||
| GV4PEM25B | ||||
| GV4PEM25N | ||||
| GV4PEM25S | ||||
| GV4PE50B | 20 .. 50 | 850 | 1020 | 0.21 |
| GV4PE50N | ||||
| GV4PE50S | ||||
| GV4P50B | ||||
| GV4P50N | ||||
| GV4PEM50B | ||||
| GV4PEM50N | ||||
| GV4PEM50S | ||||
| GV4PE80B | 40 .. 80 | 1360 | 1632 | 0.13 |
| GV4PE80N | ||||
| GV4PE80S | ||||
| GV4P80B | ||||
| GV4P80N | ||||
| GV4P80S | ||||
| GV4PEM80B | ||||
| GV4PEM80N | ||||
| GV4PEM80S | ||||
| GV4PE115B | 65 .. 115 | 1955 | 2346 | 0.09 |
| GV4PE115N | ||||
| GV4PE115S | ||||
| GV4P115B | ||||
| GV4P115N | ||||
| GV4P115S | ||||
| GV4PEM115B | ||||
| GV4PEM115N | ||||
Released for:Schneider Electric Ireland
