ALH-0.66S series current transformersDetailed product description：

The ALH-0.66S series current transformer is commonly used for control, protection, and measurement due to its innovative magnetic circuit design, advanced compensation methods, exquisite craftsmanship, safe and reliable performance, compact and beautiful appearance.
The shell is made of high-strength flame-retardant PC, with a fully enclosed structure and a flame-retardant rating of V1;
High quality oriented silicon steel sheets are selected for the internal iron core;
The wire diameter is strictly selected according to the economic current density to ensure less temperature rise;
Advanced and reliable testing equipment to ensure compliance with quality standards;
Circular hole type, with perforation sizes ranging from φ 8 to φ 22;

Suitable for single or multiple cable crossings.

characteristic curve


model

Secondary lead out line sign

1. The secondary output of the hollow core transformer uses dual core multi strand dual color shielded wire, with red indicating 1S1 and green indicating 1S2. The shielded wire is used for reliable grounding by the user.
2. The secondary output of the speed saturation transformer is made of double stranded dual color parallel plastic wire, with red as 2S1 and white as 2S2. 1S1 and 2S1, 1S2 and 2S2 are all named terminals.

ALH-0.66S series current transformer technical parameters

Current once	630-2000A (secondary current and voltage to be determined by the user)
Rated voltage	AC 660V
rated power	50～60Hz
ambient temperature	-30℃～＋70℃
Maximum temperature resistance	120℃
altitude	≤3000m
Common frequency withstand voltage	3000V 1min 50Hz (between shell and secondary coil)
accuracy	Speed saturation transformer	0.4In ≤ 10% 1.2In ≤ 5% (In is rated current)
	Hollow core transformer	≤±2%
insulation class	E

ALH-0.66S series current transformer