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Three-phase inverter voltage stabilizer Volter 21 пттм (21.0 kW) is a reliable inverter device 21 пттм, developed for comprehensive protection of household and industrial electrical equipment from any emergency situations in the grid. It acts as a reliable barrier against sudden impulse discharges, mains voltage drops, high-frequency noise, and sine wave distortions. Thanks to appropriate power capacity, this stabilizer is the optimal choice for facilities with a corresponding number of loads where it is necessary to ensure stable operation of sensitive appliances.
The operation of this device is based on advanced double conversion inverter technology. The device continuously converts incoming AC power into DC and then generates output AC power with a pure sine wave and a fixed value of 220 V. Thanks to the stepless regulation principle, the voltage is corrected absolutely smoothly, without the slightest jumps or delays inherent in outdated relay or step-type devices.
Technical Specifications Volter 21 пттм
- Nominal power — 21.0 kW
- Stabilization type — Inverter
- Number of phases — three-phase
- Output voltage regulation accuracy — ±0.50%
- Nominal output voltage — 220 V
- Stabilization input voltage range — 130.0–330.0 V
- Low cut-off voltage (Umin) — 105 В (per phase)
- High cut-off voltage (Umax) — 330 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 (±0.50%): the stabilizer reliably maintains output voltage within strict limits of 217.8 V to 222.2 V, providing ideal conditions even for demanding medical or laboratory equipment.
- Operating temperature range: operating temperature range (from +5°C to +40°C) ensures stable operation of the device in residential, office, and any heated rooms.
- Synchronization with autonomous power: the unit is adapted for operation with hybrid solar power stations (handles reverse current) and autonomous fuel generators.
- Quiet execution: due to the absence of moving mechanical parts, the device runs quietly and does not create acoustic discomfort.
- Quality guarantee: unprecedented warranty conditions from the manufacturer confirm impeccable assembly quality and durability of all components.
Safety and Protective Functions
- Emergency overload shutdown: protective power cut-off upon long-term exceedance of the allowable load power.
- Temperature control: constant overheat protection of power switches and autotransformer with activation of forced cooling ventilation.
- Emergency short circuit trip: ultra-fast output de-energization to a short circuit in the connected load to prevent damage to power modules.
- Impulse spike protection: effective absorption of high-voltage noise in the mains grid caused by external factors.
Installation and Connection Recommendations
- Wall-mounted installation: the stabilizer body is securely fixed on a vertical surface using included mounting elements.
- Clearance for ventilation: leave free space around ventilation openings (at least 10–15 cm) for unobstructed forced cooling.
- Power cables connection: connection to power supply lines is carried out via terminal strip. The copper feeder cable cross-section must correspond to maximum device current.
- Environmental conditions: 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 power parameters of the model are designed for protection of all appliances in a large cottage, office, or commercial site.
- Heating and water systems: provides a pure sine wave, which is necessary for gas and solid-fuel boiler automation.
- Server systems: protects network equipment computer systems, servers, and network switches.
- Specialized equipment: maintains stable power for dental units and precise diagnostic tools.
Why Choose Total-Energo LLC
- Engineering check: we conduct preliminary measurements of grid parameters at your site before installation, to select the optimal stabilizer model.
- Direct partnership: we supply exclusively certified equipment with direct support of the factory lifetime warranty and access to brand service.
- Professional installation: our specialists with appropriate certification perform high-quality mounting, connection, and commissioning in compliance with technical regulations.
- Long-term service support: we provide warranty, post-warranty, and preventive maintenance throughout the entire lifetime.