Catalogue / Static transfer switches
Rack-mount STS for dual-feed loads, Max seriesSample
by Thanjavurdhruv Critical Power (Sample) · verified by BARREL
Price for verified buyers
Ordered and invoiced through BARREL — one contract, one GST invoice.
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Rack-mount STS for dual-feed loads from Thanjavurdhruv, Max series: 4 rating options between 250 A and 1600 A. Key features: preferred source selection with auto retransfer, hot-swap design on rack models and phase-angle synchronism check before transfer. Used by single-corded server loads in data centres, hospital critical loads and dual UPS bus architecture. Designed and tested to IEC 62310-3, IEC 62310-1 and IEC 62310-2. Lead time 3-4 weeks; delivers to All India and export (SAARC, Middle East, Africa). Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Thanjavurdhruv
- Model
- THA-844 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 1 nos
- Lead time
- 3-4 weeks
- Warranty
- 24 months from supply
- Standards
- IEC 62310-3, IEC 62310-1, IEC 62310-2
- Delivers to
- All India and export (SAARC, Middle East, Africa)
- GST rate
- 18 %
- Country of origin
- India (imported sub-assemblies)
- Packaging
- Wooden crate, seaworthy
- Delivery terms
- Door delivery in metro cities
- Returns
- No returns on made-to-order items
- Other terms
- Sample data for testing; not a real offer.
Variants
| Variant | Specifications | Min. order · lead time | Price, ex GST |
|---|---|---|---|
| Rating250 ATHA-844-01 | Rating: 250 A | 1 nos · 3-4 weeks | for verified buyers |
| Rating400 ATHA-844-02 | Rating: 400 A | 1 nos · 3-4 weeks | for verified buyers |
| Rating800 ATHA-844-03 | Rating: 800 A | 1 nos · 6-8 weeks | for verified buyers |
| Rating1600 ATHA-844-04 | Rating: 1600 A | 1 nos · 6-8 weeks | for verified buyers |
Specifications
| Rating | 250 A to 1600 A (see variants) |
|---|---|
| Phase | 3-phase 4-wire |
| Rated voltage | 230 V AC |
| Transfer time | Below 4 msmade to order: Below 6 ms |
| Transfer type | Make-before-break |
| Switching device | SCR thyristors |
| Source priority | Preferred source selectable |
| Maintenance bypass | None |
| Overload | 125% 10 minmade to order: 150% 1 min |
| Efficiency | Above 99% |
| Display | Touchscreen |
| Communication | Dry contactsmade to order: SNMP / Modbus RTU |
| Mounting | 1U/2U rackmade to order: Floor standing |