The charts below detail the Earth Loop impedance (Z_s) for the GV2 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 Deca - frame 2)
• TeSys GV3 (TeSys Deca - frame 3)
• TeSys GV4 (TeSys Deca - frame 4)
• TeSys GV7
• TeSys U (TeSys Ultra)

2) Explanation of the calculation of the maximum Earth Loop Impedance

• Motor Rated devices
• Ambient Temperature

TeSys GV2 Range
Please refer to the charts below that detail the maximum earth loop impedance Z_s for 0.4s disconnection time with U_o 230V
 

GV2ME
Reference	Thermal Adjustment Range In	Magnetic Tripping Current Im	Tolerance Im+20%	Maximum Loop Impedance Zs
	(A)	(A)	(A)	(Ω)
GV2ME01	0.1 .. 0.16	1.50	1.80	121.39
GV2ME02	0.16 .. 0.25	2.40	2.88	75.87
GV2ME03	0.25 .. 0.4	5.00	6.00	36.42
GV2ME04	0.4 .. 0.63	8.00	9.60	22.76
GV2ME05	0.63 .. 1	13.00	15.60	14.01
GV2ME06	1 .. 1.6	22.50	27.00	8.09
GV2ME07	1.6 .. 2.5	33.50	40.20	5.44
GV2ME08	2.5 .. 4	51.00	61.20	3.57
GV2ME10	4 .. 6.3	78.00	93.60	2.33
GV2ME14	6 .. 10	138.00	165.60	1.32
GV2ME16	9 .. 14	170.00	204.00	1.07
GV2ME20	13 .. 18	223.0	267.6	0.82
GV2ME21	17 .. 23	327.0	392.4	0.56
GV2ME22	20 .. 25	327.0	392.4	0.56
GV2ME32	24 .. 32	416.0	499.2	0.44
GV2P
Reference	Thermal Adjustment Range In	Magnetic Tripping Current Im	Tolerance Im+20%	Maximum Loop Impedance Zs
	(A)	(A)	(A)	(Ω)
GV2P01	0.1 .. 0.16	1.50	1.80	121.39
GV2P02	0.16 .. 0.25	2.40	2.88	75.87
GV2P03	0.25 .. 0.4	5.00	6.00	36.42
GV2P04	0.4 .. 0.63	8.00	9.60	22.76
GV2P05	0.63 .. 1	13.00	15.60	14.01
GV2P06	1 .. 1.6	22.50	27.00	8.09
GV2P07	1.6 .. 2.5	33.50	40.20	5.44
GV2P08	2.5 .. 4	51.00	61.20	3.57
GV2P10	4 .. 6.3	78.00	93.60	2.33
GV2P14	6 .. 10	138.00	165.60	1.32
GV2P16	9 .. 14	170.00	204.00	1.07
GV2P20	13 .. 18	223.0	267.6	0.82
GV2P21	17 .. 23	327.0	392.4	0.56
GV2P22	20 .. 25	327.0	392.4	0.56
GV2P32	24 .. 32	416.0	499.2	0.44
GV2L
Reference	Thermal Adjustment Range In	Magnetic Tripping Current Im	Tolerance Im+20%	Maximum Loop Impedance Zs
	(A)	(A)	(A)	(Ω)
GV2L03	0.4	5.00	6.00	36.42
GV2L04	0.63	8.00	9.60	22.76
GV2L05	1	13.00	15.60	14.01
GV2L06	1.6	22.50	27.00	8.09
GV2L07	2.5	33.50	40.20	5.44
GV2L08	4	51.00	61.20	3.57
GV2L10	6.3	78.00	93.60	2.33
GV2L14	10	138.00	165.60	1.32
GV2L16	14	170.00	204.00	1.07
GV2L20	18	223.0	267.6	0.82
GV2L22	25	327.0	392.4	0.56
GV2L32	32	416.0	499.2	0.44
GV2LE
Reference	Thermal Adjustment Range In	Magnetic Tripping Current Im	Tolerance Im+20%	Maximum Loop Impedance Zs
	(A)	(A)	(A)	(Ω)
GV2LE03	0.4	5.00	6.00	36.42
GV2LE04	0.63	8.00	9.60	22.76
GV2LE05	1	13.00	15.60	14.01
GV2LE06	1.6	22.50	27.00	8.09
GV2LE07	2.5	33.50	40.20	5.44
GV2LE08	4	51.00	61.20	3.57
GV2LE10	6.3	78.00	93.60	2.33
GV2LE14	10	138.00	165.60	1.32
GV2LE16	14	170.00	204.00	1.07
GV2LE20	18	223.0	267.6	0.82
GV2LE22	25	327.0	392.4	0.56
GV2LE32	32	416.0	499.2	0.44
GV2RT
Reference	Thermal Adjustment Range In	Magnetic Tripping Current Im	Tolerance Im+20%	Maximum Loop Impedance Zs
	(A)	(A)	(A)	(Ω)
GV2RT03	0.25 .. 0.4	8.00	9.60	22.76
GV2RT04	0.4 .. 0.63	13.00	15.60	14.01
GV2RT05	0.63 .. 1	22.00	26.40	8.28
GV2RT06	1 .. 1.6	33.00	39.60	5.52
GV2RT07	1.6 .. 2.5	51.00	61.20	3.57
GV2RT08	2.5 .. 4	78.00	93.60	2.33
GV2RT10	4 .. 6.3	138.00	165.60	1.32
GV2RT14	6 .. 10	200.00	240.00	0.91
GV2RT16	9 .. 14	280.0	336.0	0.65
GV2RT20	13 .. 18	400.0	480.0	0.46
GV2RT21	17 .. 23	400.0	480.0	0.46

Released for:Schneider Electric UK