Product Details
The ABB SS822Z 3BSC610055R1, also cataloged as the SS822Z Power Voting Unit, operates as a dedicated hardware component for dual-redundant 24 VDC power supply voting and load sharing within ABB System 800xA platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SS822Z (3BSC610055R1) |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.50 kg |
| Dimensions | 120 mm x 100 mm x 40 mm |
| Operating Temp | -25 to 70 deg C |
| Power Consumption | Passive Diode ORing (< 5 W internal dissipation) |
| Input Voltage | 24 VDC Nominal (19.2 to 30.0 VDC range, Dual Inputs) |
| Output Current Rating | 20 A total continuous output |
| Module Category | Power Voting Modules |
| System Platform | ABB System 800xA / AC 800M |
Deterministic Network Integration and I/O Density Scaling
The SS822Z power voting unit couples dual 24 VDC power sources via low-loss Schottky diode isolation circuits, delivering continuous power feeds to central controller racks and field communications interface modules. The unit maintains stable power delivery to Profinet and EtherNet/IP deterministic networks during primary power supply failure events without output voltage drops. High I/O density scaling across AC 800M controller cabinets is supported by minimizing panel space consumption, while signal continuity maintains uncorrupted backplane bus communication velocity and continuous firmware flash compatibility during online system maintenance.
Frequently Asked Questions
Q: Can the SS822Z power voting unit be hot-swapped while the 24 VDC system load is fully energized?
A: Yes, if a parallel redundant voting module configuration is deployed; otherwise, isolated input connections must be disconnected individually to prevent output voltage disruption.
Q: How does the SS822Z isolate a short-circuited primary power supply from the DC bus?
A: Internal low-impedance reverse-blocking diodes prevent reverse current flow from the healthy power supply into the faulted input rail.
Q: What relay contact outputs are provided on the SS822Z for status monitoring?
A: The module contains dry alarm contacts that change state when either of the two 24 VDC input voltages drops below the operational threshold.
Field Installation Guidelines
- Mount the module vertically on standard 35 mm DIN rails to allow free air convection across the cooling heatsink slots.
- Maintain a minimum vertical clearance of 50 mm above and below the unit to prevent thermal throttling under maximum continuous load.
- Torque power input and output screw terminals to 0.5 Nm using appropriately rated copper conductors (minimum 2.5 mm squared).
- Connect the functional grounding conductor directly to the panel earth busbar with low-impedance copper grounding strap to maintain transient surge protection.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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