Expands existing network enclosures battery capacity for VoIP services Accommodates a 36V battery string Attaches directly to existing PWE enclosure Optional battery slide tray, heater mat, AlphaGuard battery charge management All aluminum welded construction and durable power coat finish provides superior corrosion resistance UBE-PWE, an undermount enclosure for Alpha’s PWE-3. The undermount battery expansion enclosure (UBE) increases capacity of PWE Series enclosures, providing space for three additional batteries. The UBE-PWE easily and quickly attaches below an existing PWE-3 pole-mounted enclosure. The UBE-PWE has several options including battery drawers, 120VAC or 240VAC battery heaters, AlphaGuardTM charge management system and a complement of battery cable kits. This enclosure can be added to all legacy PWE three battery enclosures manufactured by Alpha.