Sentinel Dual SDU
The Sentinel Dual SDU is Riello’s mid-power online double-conversion UPS, available as a rack or tower unit at 4, 5, 6, 8 and 10 kVA — kVA equals kW so the unit power factor is 1. Single-phase input/single-phase output (1:1) variants cover the full range; three-phase input/single-phase output (3:1) variants are offered at 8 kVA and 10 kVA. Internal or extended battery runtime is configurable.
The series is positioned for critical loads that need high uptime under unstable utility power: data-centre blade cabinets, fire and security systems, medical equipment, and industrial PLC environments. Communication is broad — SNMP up to version 3, Modbus, and Jbus — covering both IT and industrial protocols. The unit can run standalone or in 1+1 dual-parallel-redundant or N+1 configurations for 99.999% availability targets.
Sentinel Dual SDU [defines] Online Double-Conversion Sentinel Dual SDU [supports] Parallel Redundancy Sentinel Dual SDU [relates] Medical
When to choose this
- Critical loads in the 4–10 kW range
- Rack-mount density required (blade servers, IT cabinets) or convertible to tower
- Need for 1+1 or N+1 redundant parallel architecture
- Industrial protocols required alongside SNMP (Modbus, Jbus)
- Three-phase utility supply with single-phase critical loads (3:1 variants)
Specs at a glance
- Topology: online double-conversion
- Capacity: 4 kVA / 4 kW to 10 kVA / 10 kW (PF = 1)
- Form factor: rack or tower convertible
- Input: 1-phase 230 VAC or 3-phase 400 VAC (3:1 variants only)
- Output: 1-phase 230 VAC sine wave
- Comms: SNMP v3, Modbus, Jbus
- Topology: parallelable (1+1, N+1)
Connections
- 1-phase — member_of_range, source: https://standbysystems.co.za/ups_products/sentinel-dual-sdu-4-10kva/
- Online Double-Conversion — implements_feature, source: https://standbysystems.co.za/ups_products/sentinel-dual-sdu-4-10kva/
- Parallel Redundancy — implements_feature, source: https://standbysystems.co.za/ups_products/sentinel-dual-sdu-4-10kva/
- SNMP — implements_feature, source: https://standbysystems.co.za/ups_products/sentinel-dual-sdu-4-10kva/
- Modbus — implements_feature, source: https://standbysystems.co.za/ups_products/sentinel-dual-sdu-4-10kva/
- Medical — recommended_for_industry, source: https://standbysystems.co.za/industry_categories/medical/