DF-2 - Medium voltage switchgear

Technical specifications

Rated voltage	kV	12	17,5	24
Impulse withstand voltage 1.2 / 50 µs
- to earth and between phases	kV	75	95	125
- over the insulating distance	kV	85	110	145
Power-frequency withstand voltage 1 min.
- to earth and between phases	kV	28	38	50
- over the insulating distance	kV	32	45	60
Rated frequency	Hz	50/60	50/60	50/60
Rated current 1	A	800/1.250	800/1.250	800/1.250
Rated short circuit time current 1s.	kA	25	25	20
Rated peak value of the current	kA	63	63	50
Breaking capacity RV44 (IEC 60265.1)
- rated current	A	800/1.250	800/1.250	630
- closed loop	A	800/1.250	800/1.250	630
- load cable charging	A	18	18	18
- making current	kA	63	63	50
- earth fault	A	100	100	100
- earth fault cable charging	A	30	30	30
- internal arc 1 sec. (6 criteria)	kA	16	16	16
Degree of protection		IP4X
Mechanichal durability c/o		1000
Standards	IEC 62271-100, IEC 62271-102, IEC 62271-105, IEC 62271-200, IEC 60129, IEC 60694, C 64-701 (only in Belgium) IEC 60265.1
Certificates	630
1 In conformity with IEC 60265.1, class E3.