Trans-Rupter II^® Transformer Protector

Ratings

&ncsp;

Interrupter Ratings — Cold Temperature Model EX

kV			Amperes, RMS			Interrupting Time, Cycles, Max.
Nom.	Max.	BIL	Cont.	Primary Faults, Sym.	Secondary Faults
69	72.5	350	420	31 500	4 200	3
115	123	550	420	31 500	2 600	3
138	145	650	420	315 00	2 600	3

  At temperatures between -35°C and -50°C, the primary-side fault interrupting rating is 10,000A. A 2-cycle time-delay relay is required to attain the 10 000A primary-side fault interrupting rating.
  At temperatures between -35°C and -50°C, the secondary-side fault interrupting rating is 650A.
  At temperatures between -35°C and -50°C, the secondary-side fault interrupting rating is 950A.