ALH-0.66 Φ series current transformers have novel design, advanced compensation method, excellent process technology, safe and reliable performance, small and aesthetic appearance, as well as complete varieties. They are normally used for control, protection and measurement.
ALH-0.66 Φ Series APT Transformer
Description
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;
Catalog: ALH-0.66-Series-Current-Transformer-Selection-Manual.pdf
Additional information
| 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 | ≤ 3,000m |
