multict KBU

Split core transformers

Current transformer, Measure

Folding multict KBU split core transformer

Current transformers with split measuring core for primary rated currents between 100 A and 5000 A, secondary rated current 1 A and 5 A, in accuracy classes 0.5 and 1.

The split measurement system enables easy subsequent installation in already existing systems with minimal installation effort.

To install, the transformer’s locking mechanism is opened, it is laid around the primary conductor, and pushed back into place with an audible click. The measuring assembly is ready to use immediately after connecting the secondary conductors.

Application

Ideal for subsequent installation in existing systems.

Highlights

Technical Data

Hinged transformer for retrofitting in existing distribution boards.

Safe and easy attachment – current transformer audibly clicks into place
Secondary current 1 A or 5 A
Also available in accuracy class 0.5

Maximum operating voltage U_m		0.72 kV
Rated continuous thermal current I_cth		1.0 x I_n
Rated short-time thermal current I_th		60 x I_n , 1 sek (max. 100 kA)
Rated surge current I_dyn		2.5 x I_th
Overcurrent limiting factor		FS 5 through FS 20 (depending on type)
Rated frequency		50 (60) Hz (16 ²/₃ bis 400 Hz by request)
Insulation class		E
Insulation test voltages		3 kV, 1 min, U_eff , 50 Hz (U_m ≤ 0.72 kV)
Working temperature range		–5 °C ≤ T ≤ +50 °C
Storage temperature range		–25 °C ≤ T ≤ +70 °C
Applied norms		DIN EN 61869/1+2, DIN 42600-1, DIN 42600-2
Unbreakable plastic housing made of polycarbonate
Flame-resistant and self-extinguishing in accordance with UL94-V2
Nickel-plated secondary clamps with plus/minus screws (2 Nm)