This is the Tridonic PC 1/70 T8 Pro, a non-dimmable high frequency ballast to run 1 x 70w T8 fluorescent tube.

Alternative 

 

These ballasts have a nominal life time of up to 50,000 hours and provide a constant luminous flux even with fluctuations in mains voltage.

Tridonic T8 Pro ballasts also have an automatic start after replacement of defective lamps and a safety shutdown of defective lamps at the end of a lamps life.

All T8 pro ballasts are suitable for use in emergency fittings, in line with EN 50172

Tridonic article number: 87500513
Dimensions: L 234mm, W 40mm, H 28mm

Click here to see Data Sheet and Wiring Diagrams!