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Three-phase triac voltage stabilizer Volter 21 птш (21.0 kW) is a modern triac device 21 птш, developed for effective protection of household and industrial electrical equipment from any emergency situations in the grid. It works as an effective shield against dangerous impulse surges, mains voltage drops, line interference, and current frequency fluctuations. Thanks to high power capacity, this stabilizer is the perfect option for facilities with a corresponding number of loads where it is necessary to ensure stable operation of demanding equipment.
The operation of this stabilizer is based on the technology of automatic switching of autotransformer windings using high-speed electronic switches (triacs). Adjustment of the output voltage is performed in steps, but extremely fast. This ensures reliable protection of the connected equipment without wearing out of power components and without background noise during switching.
Technical Specifications Volter 21 птш
- Nominal power — 21.0 kW
- Stabilization type — Triac
- Number of phases — three-phase
- Output voltage regulation accuracy — +3,5 -5,5%
- Nominal output voltage — 220 V
- Stabilization input voltage range — 110.0–250.0 V
- Low cut-off voltage (Umin) — 100 В (per phase)
- High cut-off voltage (Umax) — 270 В (per phase)
- Maximum load current — 32.0 A
- Operating temperature range — Operating temperature range from +1°С to 40°С indoors
- Manufacturer warranty — lifetime
Key Benefits of the Model
- Stable output parameters (±+3,5 -5,5%): the device reliably maintains output voltage within strict limits of 217.8 V to 222.2 V, providing ideal conditions even for sensitive medical or laboratory equipment.
- Operating temperature range: adaptation to standard temperatures ensures stable operation of the device in residential, office, and any heated rooms.
- Synchronization with autonomous power: the unit is fully compatible for operation with hybrid solar power stations (handles reverse current) and autonomous fuel generators.
- Quiet execution: due to the use of electronic semiconductor switches, the device runs quietly and does not create acoustic discomfort.
- Quality guarantee: official warranty conditions from the manufacturer confirm impeccable assembly quality and durability of all components.
Safety and Protective Functions
- Critical current overload protection: protective power cut-off upon long-term exceedance of the allowable load power.
- Multi-level thermal protection: constant overheat protection of power switches and autotransformer with automatic fan launch.
- Short circuit protection: ultra-fast output de-energization to a short circuit in the connected load to prevent damage to power modules.
- Impulse and lightning surge filtration: effective absorption of high-voltage noise in the mains grid caused by external factors.
Installation and Connection Recommendations
- Wall vertical mounting: the stabilizer body is securely fixed on a vertical surface using included mounting elements.
- Air circulation assurance: leave free space around ventilation openings (at least 10–15 cm) for unobstructed forced cooling.
- Terminal grid connection: connection to power supply lines is carried out via terminal strip. The copper feeder cable cross-section must correspond to maximum device current.
- External exposure protection: the device has IP20 standard protection class, which implies installation in rooms with moderate humidity and dust levels.
Application Area: Where the Device is Used
- Cottages and private houses: the stabilizer nominal power are suitable for protection of all appliances in a large cottage, office, or commercial site.
- Heating and water systems: creates a perfect sinusoidal signal, which is necessary for gas and solid-fuel boiler automation.
- Server systems: prevents data loss and malfunctions of computer systems, servers, and network switches.
- Specialized equipment: provides the necessary voltage quality for dental units and precise diagnostic tools.
Why Choose Total-Energo LLC
- Professional grid assessment: we conduct detailed voltage performance analysis at your site before installation, to select the optimal stabilizer model.
- Direct partnership: we supply only original products with direct support of the factory lifetime warranty and access to brand service.
- Qualified turnkey installation: our specialists experienced electricians perform high-quality mounting, connection, and commissioning in compliance with technical regulations.
- Full technical support: we provide prompt assistance and technical consulting throughout the entire lifetime.