Low-Voltage Resin-Insulated Current Transformers for Indoor Use (Window-Type)

Serving a diverse client base around the world, CIC is a leading manufacturer and supplier of current transformers, potential transformers (voltage transformers), distribution transformers, epoxy insulators, electronic meters, and other electrical and electronic products.

Low-Voltage Resin-Insulated Current Transformers for Indoor Use (Window-Type)

EOS-RN / EOS-RM Series

Current transformers with a Primary Current of 100A~3200A. Burden & Accuracy: 15~30VA/1.0CL. Wiring with insulated wire or a busbar on the primary side. Alternative billing-purpose usage. Many window sizes.

About the Product

EOS-RN Series
Low-voltage window-type current transformers EOS-RN Series are resin-insulated instrument transformers designed to be used in indoor settings. In an EOS-RN current transformer, the window is sized at 33, 38, 60, 90, or 120 m/mψ. On the primary side, wiring can be done with a busbar or with insulated wire. The specifications of the EOS-RN Series allow a Primary Current of 100A~3200A and offer a Burden and Accuracy of 15~30VA/1.0CL. When used for billing purposes, and if the Primary Current is above 200A, the EOS-RN Series Current Transformers offer a Burden and Accuracy of 5~30VA/0.5CL. (however, if the Primary Current is under 100A, it is necessary to adjust the number of primary turns). Each of the EOS-RN Series Current Transformers comes with a sealable terminal cover for its secondary side. Fixed with a metal base and featuring a fine exterior, these compact-sized current transformers are characterized by their excellent physical and electrical properties.

EOS-RM Series
Sharing similar specifications with the EOS-RN Series (please refer to Selection Table), the EOS-RM Series Current Transformers are compact in size and economically priced.

Common Specifications

Standard:  IEC or IEEE
Usage:  Indoor
Rated Voltage:  up to 0.72 kV
Frequency:  50 or 60 Hz
AC/BIL:  3/- kV
Ith = 40 In/1S

Selection Table

Model Primary
Current (A)
Current (A)
Burden and Accuracy
(Standard: IEC)
Weight (kg)
EOS-33RN 100 ~ 150 5 or 1 15VA/1.0CL 1.9
200 ~ 300 30(15)VA/1.0(0.5)CL
EOS-38RN 200 ~ 300 15VA/1.0CL 1.2
350 ~ 500 30(15)VA/1.0(0.5)CL
EOS-60RN 500 ~ 700 30(15)VA/1.0(0.5)CL 1.4
EOS-90RN 800 ~ 1200 1.7
EOS-120RN 1500 ~ 3200 2.2
EOS-33RM 100 ~ 150 5VA/1.0CL 0.9
200 ~ 300 15VA/1.0CL 0.9
EOS-60RM 400 ~ 800 1.1

Note: Other specifications available upon request.

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