Product details
Voting Unit Overview
The ABB SS832 Voting Unit (3BSC610068R1) manages redundant 24 V d.c. power supplies. It connects two power supply outputs, supervises voltage, and provides OK signals. This unit ensures continuous power for critical automation systems.
- Redundant input: Accepts two 24 V d.c. supplies (2 x 10 A).
- High output: 10 A standard, 20 A in parallel mode.
- Visual status: Green LEDs show healthy output.
- 12-month warranty against defects.
Model & Key Details
- SS832 – Voting Unit for Redundant Power Supplies
- Article number: 3BSC610068R1.
- Type: Voter (power selector).
- Rated input: 2 x 24 V d.c., 10 A each.
- Output current: 10 A (single), 20 A (parallel).
- Max overload current: 25 A RMS (short circuit).
- Supervision: Green LEDs + voltage-free relay contacts per channel.
- Heat dissipation: 18 W typical.
- Output voltage drop: 0.85 V typ at max current.
- Max ambient temp: 55°C.
- Weight: 350 g (0.77 lb).
- Dimensions (W x H x D): 32 x 125 x 117 mm.
- Mounting spacing: W 15 mm, H 25 mm.
Protection & Safety Features
- Output protection: Current limiting and over-voltage protection (OVP).
- Electrical safety: Class I (connected to PE).
- Over-voltage category: III (primary mains connection).
- Isolation: Protective separation between secondary and primary.
- Approved for: SELV and PELV applications.
- TN network compatible.
Environmental & Certifications
- Operating temp: 0°C to +55°C (32°F to 131°F).
- Protection: IP20 (IEC 60529).
- Corrosive atmosphere: ISA-S71.04 G2.
- Pollution degree: 2 (IEC 60664-1).
- Certifications:
- CE marked.
- Electrical safety: IEC 61131-2, UL 508, EN 50178.
- Marine: ABS, BV, DNV-GL, LR.
- EMC: EN 61000-6-4, EN 61000-6-2.
- RoHS (2011/65/EU), WEEE (2012/19/EU).
- Not for hazardous locations: No ATEX/IECEx/Class I Div 2.
Package & Logistics
- Includes: One ABB SS832 Voting Unit, factory sealed.
- Warranty: 12 months from shipment.
- Shipping partners: FedEx, UPS, DHL – tracked and insured.
- Origin: New & original in factory packing.
Frequently Asked Questions (FAQ)
- How does the voting unit choose which supply to use?It monitors both inputs. If one fails, the other automatically takes over. The green LED indicates which supply is active.
- Can I get 20 A output from a single unit?Yes, by connecting both inputs to the same 24 V source and wiring outputs in parallel. Rated for 20 A total.
- What do the OK relay contacts do?Each channel has a voltage-free contact that closes when its output is healthy. Connect to a PLC or indicator.
- Is this unit approved for marine use?Yes. It holds marine certificates from ABS, BV, DNV-GL, and LR.
- What happens during a short circuit?The output limits current to 25 A RMS maximum. After removing the fault, the unit recovers automatically.
Selection Guide
- Choose SS832 when you need to build a redundant 24 V supply for PLCs or I/O systems.
- For 20 A output, connect both inputs to the same source and parallel the outputs.
- Mount on DIN rail with proper spacing (15 mm sideways, 25 mm top/bottom).
- Not for use in hazardous areas – select SS832X if Zone 2 required.
- Ensure upstream fuses are rated for 10 A per input.
For inquiries or rush orders: Email sales@powergearx.com or WhatsApp +86 18030005825.
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