DC Isolator Switch Manufacturer
Compare VIOX photovoltaic DC isolator switch series for PV strings, inverters and related DC circuits by voltage, current, pole arrangement, enclosure and mounting format.
DC switching dutyVerify by published series
Pole arrangementsMatch the circuit design
PV system isolationManual maintenance disconnect
Mounting formatsOpcje montażu w rozdzielnicy lub w obudowie
What is a DC isolator switch?
A DC isolator switch is a manually operated switching device used to disconnect a direct-current circuit for maintenance, inspection or permitted emergency isolation. In solar PV systems, it is commonly installed between PV strings and an inverter or integrated into related DC equipment.
It is an isolation device, not a substitute for overcurrent or surge protection. Rated DC voltage, current, utilization category, poles, wiring arrangement, enclosure conditions and installation method must match the exact circuit and product documentation.
DC Isolator Switch Series
Compare published VIOX photovoltaic DC isolator models. Open each product page for its available ratings, wiring arrangement and installation details.
VIOX ELR2
Photovoltaic DC isolator switch- Znamionowe napięcie stałe (DC)
- Up to 1200V DC
- Prąd znamionowy
- 16A–32A
- Konfiguracja biegunów
- 4P
- Obudowa
- IP66
VIOX ELR1
Photovoltaic DC isolator switch- Znamionowe napięcie stałe (DC)
- Up to 1200V DC
- Prąd znamionowy
- 16A–32A
- Konfiguracja biegunów
- 4P
- Obudowa
- IP66
VIOX NL1
Photovoltaic DC isolator switch- Znamionowe napięcie stałe (DC)
- Up to 1200V DC
- Prąd znamionowy
- 16A–32A
- Konfiguracja biegunów
- 4P
- Obudowa
- IP20
VIOX NL1/T
Photovoltaic DC isolator switch- Znamionowe napięcie stałe (DC)
- Up to 1200V DC
- Prąd znamionowy
- 16A–32A
- Konfiguracja biegunów
- 4P
- Obudowa
- IP20
VIOX L2
Photovoltaic DC isolator switch- Znamionowe napięcie stałe (DC)
- Up to 1200V DC
- Prąd znamionowy
- 16A–32A
- Konfiguracja biegunów
- 4P
- Obudowa
- IP20
VIOX L1
Photovoltaic DC isolator switch- Znamionowe napięcie stałe (DC)
- Up to 1200V DC
- Konfiguracja biegunów
- 4P
- Obudowa
- IP20
- System
- Solar PV / DC
VIOX UKPD32 VZVH4
Photovoltaic DC isolator switch- Znamionowe napięcie stałe (DC)
- Up to 1500V DC
- Obudowa
- IP67
- System
- Solar PV / DC
VIOX UKPD32 VZV
Photovoltaic DC isolator switch- Znamionowe napięcie stałe (DC)
- Up to 1500V DC
- Obudowa
- IP67
- System
- Solar PV / DC
How to choose a DC isolator switch
Start with maximum circuit voltage and current, then verify poles, switching duty, mounting and environmental conditions.
Rated DC voltage and current
Match the maximum operating conditions of the PV string, inverter or DC circuit.
Pole and wiring arrangement
Confirm how many conductors must be switched and follow the selected model wiring diagram.
DC switching duty
Verify the published utilization category and switching characteristics for the intended circuit.
Mounting and enclosure
Choose the format and environmental protection required at the installation point.
Isolation is one part of DC protection
A DC isolator provides manual disconnection. Fuses, DC circuit breakers and SPDs perform different protection functions and must be coordinated separately.
Compare published DC Isolator series
Puste komórki oznaczają, że wartość nie jest dostępna w bieżącym zestawieniu produktów. Przed dokonaniem specyfikacji otwórz stronę modelu lub poproś o jego kartę katalogową.
| Szeregowy | Znamionowe napięcie stałe (DC) | Prąd znamionowy | Konfiguracja biegunów | Mounting / enclosure |
|---|---|---|---|---|
| VIOX ELR2 | Up to 1200V DC | 16A–32A | 4P | IP66 |
| VIOX ELR1 | Up to 1200V DC | 16A–32A | 4P | IP66 |
| VIOX NL1 | Up to 1200V DC | 16A–32A | 4P | IP20 |
| VIOX NL1/T | Up to 1200V DC | 16A–32A | 4P | IP20 |
| VIOX L2 | Up to 1200V DC | 16A–32A | 4P | IP20 |
| VIOX L1 | Up to 1200V DC | — | 4P | IP20 |
| VIOX UKPD32 VZVH4 | Up to 1500V DC | — | — | IP67 |
| VIOX UKPD32 VZV | Up to 1500V DC | — | — | IP67 |
Zastosowania izolatorów prądu stałego
Typowe środowiska, w których należy zweryfikować dokładne parametry produktu.
Budynki mieszkalne
Rooftop PV and residential solar installations requiring an accessible, correctly enclosed DC disconnect.
Automatyka przemysłowa
Selected industrial DC circuits where voltage, current and switching duty match the device documentation.
Fotowoltaika i magazynowanie energii
Manual DC isolation between PV strings, inverters and related solar equipment where the selected series is appropriately rated.
DC Isolator Knowledge & Selection Guides
Wszystkie artykuły
Wybór i rozmiarowanieJak czytać parametry znamionowe rozłączników DC: napięcie, prąd, bieguny i kategorie użytkowania
DC Isolator Selection Questions
Szybkie odpowiedzi do wstępnego porównania rodzin produktów przed szczegółową weryfikacją obwodu.
What does a DC isolator switch do?
It provides manual disconnection of a DC circuit for permitted maintenance, inspection or emergency isolation. The exact switching duty and operating conditions depend on the selected model.
Does a DC isolator provide overcurrent protection?
No. An isolator is not a substitute for a fuse, DC circuit breaker or other required protective device. Those functions must be coordinated separately.
Can an AC isolator be used on a DC circuit?
Only when the product documentation explicitly provides a suitable DC rating and wiring arrangement. AC and DC arc interruption conditions are different.
Which ratings should be checked?
Check maximum DC voltage, rated current, utilization category, poles, wiring arrangement, operating mechanism, mounting method, enclosure or IP conditions and applicable standards.
Where is a DC isolator installed in a solar PV system?
Its position depends on the system architecture and applicable rules. Common locations include between PV strings and an inverter or within related DC equipment, following the system and product instructions.
Need the Right DC Isolator?
Let’s Match the Circuit.
Send the maximum DC voltage, current, pole arrangement, mounting location, enclosure requirement, quantity and target market. VIOX will help identify the relevant published series.
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