Power Distribution

Vekloud STS 3/3 Phase 4P 160-250A

Technology: STS conversion time ≤ 4ms
Power rating: 160，200 & 250 A Models Available
Phase: 4P 3/3 Phase (380V-415V)
Warranty: 1 Year Full Warranty
Description: A three-phase, 4-pole 8U rack static transfer switch for 160A/200A/250A applications, delivering sub-4 ms SCR-based transfer to maintain uptime for critical loads under power-source faults. It supports automatic/manual operation with S1 priority, terminal-block high-current wiring, RS485 communication, and optional external SNMP plus fault dry contacts for monitoring and integration.
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Purpose: Provides A/B dual-source redundancy for critical three-phase loads. Default Source S1 priority; automatically transfers to Source S2 when S1 is abnormal and returns to S1 after recovery (settings/logic consistent with the 63–125A version).
Switching technology: SCR (thyristor) static switching for fast, contactless transfer.
Ratings / variants: 160A / 200A / 250A, 3-phase 4P.
Input / Output: 380Vac, 50/60Hz (same input and output voltage class).
Transfer time: < 4 ms.
Operating modes: Automatic / Manual, break-before-make switching (no source paralleling during transfer).
Load capability & efficiency: Suitable for IT/industrial loads with 3:1 crest factor, efficiency ≥ 98% .
Front panel: Status indicators + LCD and 4.3-inch display for clear source/load/alarm visibility.
Rear connections: High-current terminal block wiring (three groups, four-position terminals) + RS485 communication; supports external SNMP communication and fault dry contacts.
Environmental: Operating temperature -10 to 40°C, humidity 0–90% RH (non-condensing), altitude ≤ 5000 m.
Mechanical: 8U rack format; dimensions 436 × 490 × 355 mm (D×W×H); weight ~28.5 kg (reference).