Power Distribution

Vekloud STS 1/1 Phase 10-45A

Technology: STS conversion time ≤ 4ms
Power rating: 10，16 & 32 A Models Available
Phase: 1/1 Phase (230V)
Warranty: 1 Year Full Warranty
Description: A 1U rack-mount static transfer switch for single-phase loads that provides A/B source redundancy, automatically transferring in milliseconds (typically ≤ 4 ms) when the preferred source becomes abnormal. Available from 10A to 45A, it uses break-before-make switching with high efficiency and optional single-cut/double-cut configurations to improve uptime for single-cord critical equipment.
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Purpose: Automatic two-source power selection (Source S1 / Source S2) to keep single-cord loads continuously powered.
Operating logic: Normally supplied by S1; if S1 voltage is out of the acceptable range, the load automatically transfers to S2 (and returns when conditions are normal, based on settings).
Switching technology: High-speed SCR (thyristor) static switching (with version-dependent designs), enabling fast, contactless transfer.
Transfer performance: Millisecond-level transfer, typical ≤ 8 ms (configuration dependent).
Switching method: Break-before-make transfer to prevent paralleling the two sources during changeover.
Electrical ratings: Single-phase 220 Vac (±10%), 50/60 Hz.
Current ratings (add): 10A / 16A / 32A / 45A versions.
Single-cut vs. double-cut options:

Single-cut: switches live conductor with a shared neutral.
Double-cut: switches live + neutral (supports broader source/neutral arrangements, depending on application).

Load capability: Suitable for IT-type loads with 3:1 crest factor; efficiency ≥ 98%.
Cooling & environment: Fan cooling; operating temperature 0–40°C; humidity 0–90% RH (non-condensing); installation altitude < 1500 m.
Rack form factor: 1U / 19-inch rack mount; typical size 343 × 490 × 44 mm; weight about 4.5–5.0 kg (version dependent).
Interfaces & I/O (version dependent): Front status indication and optional LCD; optional RS485/RS232 communications; multiple rear-panel input/output connection styles (socket or terminal variants).