Product specifications

Appendix A Hardware Units Power Supply Units - Types SD831, SD832, SD833, and SD834
3BSE036351-510 A 363
Power Supply Units - Types SD831, SD832, SD833, and
SD834
Key Features
• Simple DIN-rail mounting.
• Class I Equipment, (when connected to Protective Earth, (PE)).
• Over-voltage Category III for connection to primary main TN network of
Installation Category III.
• Protective separation of secondary circuit from primary circuit.
• Accepted for SELV and PELV applications.
• The output of the units is protected against over current (current limit) and over
voltage (OVP).
• SD834 can be connected in parallel to increase output power.
• Both a.c. and d.c. input at SD831 and SD834.
• Floating DC-OK relay contact at SD834.
Table 112. PSU’s SD821, 822 and 823 – Mounting Dimensions
Parameter
SD821
Converter
SD822
Converter
SD823
Converter
Dimensions, Width
HxD = 125 x 110
mm (4.9” x 4.3”)
50 mm (2.0 in) 65 mm (2.6 in) 120 mm (4.7 in)
Mounting spacing
W mm
10 mm (0.4 in) 15 mm (0.6 in) 15 mm (0.6 in)
Mounting spacing
H mm
25 mm (1.0 in) 25 mm (1.0 in) 25 mm (1.0 in)
Weight (lbs) 600 g (1.3 lb) 700 g (1.5 lb) 1100 g (2.4 lb)