The flexible package of the PRP-1500 pure sine wave inverters by Schaefer allows it to be chassis-mounted, DIN rail-mounted or fitted into a standard 3U Eurorack. Standard input voltages of 12, 24, 48, 72, and 110V DC are inverted to adjustable 120 or 230V AC outputs that are regulated to 4% or better. Units can be configured for three phase synchronisation. All models feature overload protection and an LED indicator for output OK or alarm conditions. The wide operating temperature of -25 to +70°C allows for installations in extreme conditions and meets EN50155 Class 3. Remote inhibit and remote off are standard. Efficiency ranges from 86 to 90%. There are versions in the series that meet industrial (EN60950) or rail (EN50155) standards. Emissions to EN61000-6-4 and EN60121-3-2 meet both industrial and rail standards.