Celsa 70030-1267 AST R21 Current Transformer, 50A/1A, 21mm, Compact Design

The Celsa AST R21 50/1A is a current transformer attachment designed to handle a primary current of 50 A and a secondary current of 1 A, featuring a Rogowski coil and a line feed-through diameter of 21 mm. Manufactured by Celsa, model 70030-1267, it provides precision current conversions suitable for AC measurement and current loop applications. This device is commonly used in electrical systems requiring accurate current monitoring and transformation.

Type	Current transformer attachment
Primary Current	50A
Accuracy Class	1
Calibrated	FALSE
Height opening	0-0mm
Line feed-through (H)	0mm
Line feed-through (W)	0mm
Line feed-through diameter	21mm
Misc Attribute	AST R21 50/1A 1.25VA Kl. 1
Model	Attachable current transformer
Number of primary inputs	1
Opening diameter	21mm
Overcurrent limiting factor	FS 5
Rated primary current	50A
Rated secondary apparent power	125VA
Rated secondary current	1A
Secondary connection	Screw connection
Secondary current	1A
Snap mounting	FALSE
Width opening	0-0mm
With contact protection	TRUE
With copper rail	FALSE