Regulated power supply. Input protected by fuse and output protected by resettable fuse. Option: battery can be connected to the PSU* (12V). Provide fuse connected in series with the batteries. Dimensions (L x W x D): 142 x 92 x 60mm. Input voltage: 230 to 240V, 50/60 Hz. Consumption: 0.25A. PWM regulation (pulse modulation). Output: Regulated 12VDC. Maximum output power: 3A. IP 20. -10°C to +50°C.