The SAK51 is equipped with a 2-line display‚ each consisting of 16 characters. The display and the keys are fitted with backlights. The 5 LEDs display the most important system states such as on/off‚ war‚ "unset"‚ "part set"‚ "full set"‚ alarm etc.

Operating power (nominal) - 12 VDC via E-Bus
Current consumption: minimum34 mA
Current consumption: maximum114 mA
Special function keys - 6
Status LEDs - 5
LCD-display - 2 x 16 characters
Operating temperature - 0 +55 °C 
Housing protection - IP30
Dimensions (W x H x D) - 170 x 110 x  30 m
Weight - 0.220 kg