Three-phase inverter voltage stabilizers Volter PTTM 21–42 kW (3×7 … 3×14) with switching rack
Country: Ukraine · Model: PTTM-21 – PTTM-42
PTTM is a set of three-phase inverter stabilizers rated 21, 27, 33 and 42 kW in housings for wall or floor placement, intended for continuous work under load. A switching rack is offered with the series, and regulation accuracy is ±0.5 %.
- Models and power
- PTTM-21 (3×7) — 32 A; PTTM-27 (3×9) — 40 A; PTTM-33 (3×11) — 50 A; PTTM-42 (3×14) — 63 A
- Input range
- 130–330 V per phase
- Regulation accuracy
- ±0.5 %
- Module per phase (H×W×D)
- 450×420×160 mm
Technical specifications
| Models and power | PTTM-21 (3×7) — 32 A; PTTM-27 (3×9) — 40 A; PTTM-33 (3×11) — 50 A; PTTM-42 (3×14) — 63 A |
|---|---|
| Input range | 130–330 V per phase |
| Regulation accuracy | ±0.5 % |
| Module per phase (H×W×D) | 450×420×160 mm |
| Module weight | 18 kg (21–27 kW); 21 kg (33–42 kW) |
| Switching rack | 63 A breaker, three phases |
| Cooling | forced |
| Type | inverter-based (stepless regulation) |
| Efficiency | 98 % |
| Response time | 1 ms |
| Output voltage | 220 V per phase |
| Cut-off in transit mode | 260 ± 5 V |
| Start-up delay | 4.5–7.5 s |
| Noise level | 34–40 dB depending on load |
| Ingress protection | IP20 |
| Operating conditions | +1…+40 °C indoors, humidity 40–80 % |
| Extended input | 60–380 V, made to order |
| Frost-resistant treatment | available to order (Smart, EtalonS, etc.) |
Analogues in the catalogue
- ESR — single-phase static voltage stabiliser 3–100 kVA
- ESR-3P-T1F — three-phase static voltage stabiliser 6–400 kVA
- ESR-3P-T2F/T3F — three-phase static voltage stabiliser 450–3125 kVA
- SVS-3P — three-phase servo-electronic voltage stabiliser 6–600 kVA
- Aquarius three-phase static voltage stabilizer 10–120 kVA
- Odyssey three-phase static double-conversion stabilizer 80–4000 kVA
- AVR3x — three-phase static voltage stabilizer 18–190 kVA
- SVS3x35/45/75 — three-phase voltage stabilizers up to 54 kVA
- RE3 / RET — electronic voltage stabilizers 0.3–150 kVA
- Three-phase static voltage stabilizer 30–60 kVA, 400 V ±2 %
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Each phase has its own module of 450×420×160 mm, weighing 18 kg for the 21–27 kW models and 21 kg for the 33–42 kW models. PTTM-21 (3×7) at 32 A, PTTM-27 (3×9) at 40 A, PTTM-33 (3×11) at 50 A and PTTM-42 (3×14) at 63 A have a 130–330 V per phase input range, extendable to 60–380 V to order. A rack with a 63 A breaker on three phases simplifies connection and makes it possible to take the stabilizer out of the circuit for maintenance. Separate racks are also made for 18–27 kW groups. The output is 220 V per phase, efficiency 98 % and response time 1 ms. The transit cut-off occurs at 260 ± 5 V and the start-up delay is 4.5–7.5 s.
How to choose
Pick the model by current per phase, from 32 A to 63 A. The 63 A breaker of the rack matches the current of the largest model, PTTM-42. If no rack is needed and wall placement is enough, compare Prostor or Parus for the same 21–42 kW. Supplied as the official representative in Ukraine.
Request a price and lead time
Three-phase inverter voltage stabilizers Volter PTTM 21–42 kW (3×7 … 3×14) with switching rack, Volter. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the switching rack of PTTM for?
The rack holds a 63 A breaker on three phases. It simplifies connection and lets the stabilizer be switched off for maintenance.
How is PTTM mounted?
It can be wall-mounted or placed on the floor, with forced cooling. The module per phase measures 450×420×160 mm.
What are the noise level and ingress protection of PTTM?
Noise is 34–40 dB depending on load and ingress protection is IP20. Operating conditions are +1…+40 °C in a closed room at 40–80 % humidity.
Can the input range of PTTM be extended?
Yes, a 60–380 V version is available to order, while the standard range is 130–330 V per phase. Frost-resistant treatment is also available to order.
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