Category: 電能計量表
電流互感器將大電流值縮放為較小且標準化的值，以供測量之用途。它們提供一個與其一次側電路中流動的電流精確成比例的二次電流。此電流互感器對一次側電路呈現可忽略的負載。
CT夾鉗的線纜長度為 60 公分。
*不兼容於 Shelly Pro EM-50、Shelly Pro 3EM、Shelly EM Gen3、Shelly EM Gen4 及 Shelly Pro 3EM-3CT63
The accuracy on these is spot-on—the secondary output stayed perfectly proportional even when I pushed 40+ amps through the primary. Compact enough to fit in my crowded panel, and the clamp locks securely without any wobble.
Been using this clamp to monitor my workshop's main feed and the secondary output is dead on compared to my multimeter readings. The 50A rating gives me plenty of headroom for the occasional spike, and the clamp opens wide enough to fit over thicker cables without a struggle.
Had to redo a couple of wiring runs in my panel, and this clamp made it trivial to verify the secondary current matches the primary exactly—the ratio held steady even under a heavy load. Fits nicely on the busbar without any awkward bending, and the terminal block feels solid for the price.
