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12345 SW Leveton Drive, Tualatin OR 97062 USA
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
H681x-5A Series Installation Guide
Installation
Installation must be performed by a qualified electrician.
Disconnect and lock out power to the electrical panel.
1. Connect the secondary leads to the burden or test switching/shorting bar. The white wire is the x1 lead.
2. Depress the tabs on one end of the CT to open it. Check the core ends on both sections of the CT to ensure there is no rust or
debris in the closure areas.
3. Slip the CT over the primary leads. Note labeling on the product indicating “source side.”
H6810/Small UL2808
200-400 Amp
A = 3.23” (82 mm)
B = 1.4” (36 mm)
C = 1.4” (36 mm)
D = 1.12” (28 mm)
E = 3.25” (83 mm)
F = 4.12” (105 mm)
H6811/Medium UL2808
600-800 Amp
A = 4.95” (126 mm)
B = 2.9” (74 mm)
C = 2.46” (63 mm)
D = 1.2” (31 mm)
E = 5.36” (136 mm)
F = 5.83” (148 mm)
H6812/Large UL2808
1000-2400 Amp
A = 4.91” (125 mm)
B = 5.73” (146 mm)
C = 2.47” (63 mm)
D = 1.16” (30 mm)
E = 8.12” (206 mm)
F = 4.91” (125 mm)
B
E
F
C
D
A
A
B
E
C
F
D
A
B
E
C
F
D
Dimensions
Split-Core
UL2808
A
B
E
F
C
D
B
E
F
C
D
A
A
B
E
C
F
D
H6810
SMALL
100 Amp
200 Amp
300 Amp
H6811
MEDIUM
400 Amp
600 Amp
800 Amp
H6812
LARGE
800 Amp
1600 Amp
2000 Amp
2400 Amp
A = 3.8" (96 mm)
B = 1.5" (38 mm)
C = 1.3" (32 mm)
D = 1.1" (29 mm)
E = 3.9" (100 mm)
F = 4.8" (121 mm)
A = 4.9" (125 mm)
B = 2.9" (73 mm)
C = 2.5" (62 mm)
D = 1.1" (29 mm)
E = 5.2" (132 mm)
F = 5.9" (151 mm)
A = 4.9" (125 mm)
B = 5.5" (139 mm)
C = 2.5" (62 mm)
D = 1.1" (29 mm)
E = 7.9" (201 mm)
F = 5.9" (151 mm)
H6810/Small
200-300 Amp
A = 3.8” (96 mm)
B = 1.2” (31 mm)
C = 1.3” (32 mm)
D = 1.2” (31 mm)
E = 4.0" (100 mm)
F = 4.8" (121 mm)
H6811/Medium
400-800 Amp
A = 4.9” (125 mm)
B = 2.9” (73 mm)
C = 2.5” (62 mm)
D = 1.2" (31 mm)
E = 5.2” (132 mm)
F = 6.0" (152 mm)
H6812/Large
800-2400 Amp
A = 4.9” (125 mm)
B = 5.5” (139 mm)
C = 2.5” (62 mm)
D = 1.2” (31 mm)
E = 7.9" (201 mm)
F = 6.0" (152 mm)
