CJB20-1250/3T, CJB20-1250/4T, CJB20-1250/M 12kV, 24kV 1250A Outside Cone Screened Bus Bar System up to 24kV (Interface C)

• Customization: Available
• Certification: RoHS, ISO9001, En50181
• Rated Voltage: 12kV, 24kV
• Model NO.: CJB20-1250/3T, CJB20-1250/4T, CJB20-1250/M
• Bushing Type: 1250A Type C (EN50181)
• Application: MV GIS Switchboard Extended Accessories
• Type Tested: Yes
• Transport Package: Carton Box
• Trademark: GCA
• Origin: China
• HS Code: 8547900000
• Production Capacity: 1000000PCS/Year

Product Description

1250A Outside Cone Screened Bus Bar System up to 24kV (Interface C)
 

1250A Outside cone screened bus bar connectors are designed for connecting with type C interface bushing according to
EN50180, EN50181, DIN47636. Electrical specification according to standard of IEC 60502-4, IEC 62271-1.

CJB20-1250/M
CJB20-1250/M is a screened bus bar, made of silicone rub-ber and copper bar. The rated current is 1250A, application for up to 24kV. The selection length of bus bar according to distance between bushings center.

CJB20-1250/4T
CJB20-1250/4T is a screened bus bar intermediate connector, made of silicone rubber, de-signed to connect with the bus bar CJB20-1250/M.

CJB20-1250/3T
CJB20-1250/3T is a screened bus bar end connector, made of silicone rubber, designed to connect with the bus bar CJB20-1250/M.


Selection guide

The standard length of L (distance between bushing center) is 350, 450, 500, 600, 650mm, other length is available as
requested.



Technical data
 

Test Item	Test value
AC voltage withstand	54kV, 5min
AC voltage withstand	65kV, 1min
Partial discharge	20kV, ≤5pC
Thundering impulse voltage withstand at 10 positive and 10 negative	125kV
Thermal short-circuit	31.5kA, 4s
Dynamic short-circuit	80kA

Application