ABB AC 800M

Appendix A Hardware Units Power Supply Units – Types SD821, SD822 and SD823
3BSE 027 941 R301 181
Power Supply Units – Types SD821, SD822 and SD823
Key Features
• Simple DIN-rail mounting
• Parallel connection permitted for load sharing
• Class I Equipment (when connected to Protective Ground, (PE))
• Overvoltage Category III for connection to primary main TN network of
Installation Category III
• Protective separation of secondary circuit from primary circuit.
• Secondary outputs;
– SD823 = 24 Volts DC regulated @ 10A
– SD822 = 24 Volts DC regulated @ 5A
– SD821 = 24 Volts DC regulated @ 2.5A
• Accepted for SELV and PELV applications
Safety Classification
The Power Supply Units (PSU) are designed to meet all applicable electrical safety
data in accordance with EN 50178 harmonized European Standard Publication, and
the additional safety and function data required by EN 61131-2 and UL 508.
The secondary output circuitry is accepted for SELV or PELV applications.
SELV according to EN 50178, EN 60950 and VDE 0100 Part 410.
For PELV applications; in accordance with EN 50178.
Protection Rating
IP20 according to EN 60529, IEC 529
Protective Class I according to EN 50718; 3.56