My Collection: Urbis ZX3 (2)

Manufacturer Urbis Lighting
Catalogue Number (model) ZX3 SEALSAFE ZX3NB/150/1289/FG/GY-CVR/LP/GR/892241
Wattage 150W
Lamp-Type SON-T
Gear Original (Modified in Service)
Ballast Philips DynaVision Prog Xt SON150 (& Disconnected Urbis HSZ15024521)
Ignitor Urbis PAE400255
IP Rating (when new) IP66 (Lamp) IP43 (Gear)
Date Of Manufacture ~~/09/1997
Date on Ignitor ~~/10/1997
Date on Ballast ~~/08/1997
Date on Lamp NOS
Date Acquired 19/07/2025
Restoration Status Cleaned
Collection Number #171

This is the second ZX3 to have entered my collection. It differs physically from my other example as it features a white canopy, rather than the black one. It is also undrilled for switching controls, as it was likely part of a group-switched section of street lighting when in service.

The lantern features a flat-glass lens to complete the Sealsafe optic.

As is typical with the ZX2/ZX3, the gear-tray can be accessed via two clips at the rear of the canopy.

The ZX3 has had to be glued at its front-end due to a small amount of damage.

Inside is quite a unique set-up. There's a dormant Urbis magnetic ballast for 150W SON lamps, and then a 150W Philips electronic driver stuffed to the side. The writing on the driver confirms this runs on Dim profile B: 100% from switch on - 20:00, 50% from 20:00 - 06:00, 100% from 06:00 - switch off.

It could be that the ignitor was faulty on the old gear, or it could be that the driver was implemented in order for dimming to be applied to the lantern.

The retired ballast has a date-code which points to August 1997. I will likely end up removing and testing the old gear for use in other lanterns that need it.

The lantern was powered up on its electronic Philips driver: