
Current Transformer 100A ( incl. fly lead )
Landis Current Transformer 100A ( incl. fly lead )
Current Transformer 100A ( incl. fly lead ) is a current transformer from Landis, rated at 100 A.
A current transformer clips around a live conductor and reports the current flowing through it, without breaking into the circuit. On a solar or battery installation it is what lets the inverter see what the rest of the property is doing — how much is being imported, exported or generated — and that measurement is the input for the two features people actually buy the system for: export limitation, and charging a battery from surplus generation rather than from the grid.
Sizing matters. The CT has to be rated for the maximum current of the conductor it goes around, and it has to be the type the inverter or meter expects — mixing a CT from one manufacturer with another's meter usually gives readings that look plausible and are wrong.
Specification
| Manufacturer | Landis |
| Part number | CT-100A |
| Rated primary current | 100 A |
| Type | Split core, supplied with fly lead |
| Frequency | 50 to 60 Hz |
| Accuracy | ±1% between 20% and 120% of rated current |
| Insulation voltage | 600 V AC |
| Maximum primary voltage | 5,000 V AC |
| Dielectric strength | 2.5 kV / 1 mA / 1 min |
| Operating temperature | −15 °C to +60 °C |
| Operating humidity | < 85% |
| Case material | PC, UL94-V0 |
| Bobbin | PBT |
| Core | Permalloy |
| Internal structure | Epoxy |
Datasheets, installation manuals and declarations of conformity we hold for this product are in the Documents tab below. See the rest of our monitoring and metering range, or contact our sales team at sales@clearraysolar.com for compatibility advice and trade pricing.
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- UK — 1-2 business days
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Returns accepted within 14 days of delivery for unused items in original packaging.

