ALH-0.66Φ type current transformer is applicable to the places where there are small currents and small spaces, especially suitable for the drawer-type cabinets.
It can be installed directly by the guide rails (or by the bottom cabinets provided by our factory), or by the bus bar.
The direct core-through method is adopted at the primary side without disconnecting the wires. The core-through hole diameters include four types - Φ8mm, Φ12mm, Φ15mm and Φ22mm.
Internal iron core adopts high-quality silicon steel sheet;
In conformance with GB0840.2-2014;
Pass the National Metrology Accreditation;
Secondary current is divided into 5A and 1A;
Rated working voltage (Un): AC660V
Rated frequency: 50～60Hz
Rated continuous thermal current (Icth): 1.2 x Ipn
Rated short thermal current (Ith): 60x Ipn (1sec.)
Power frequency withstand voltage: 3kV (1min, 50Hz; between the enclosure and secondary terminal)
Insulation class: E
Type of wiring terminal: screw pressing sheet fastening type (thread is M4)
Operating torque: tightening torque 0.8～1.2N.m, max. bearing torque 2.4N.m;
Protection class: IP00 for terminal and IP40 for enclosure;
Altitude of installation place: not more than 3,000m