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 formatsPanel or enclosed options
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- 定格DC電圧
- Up to 1200V DC
- 定格電流
- 16A–32A
- ポール構成
- 4P
- エンクロージャー
- IP66
VIOX ELR1
Photovoltaic DC isolator switch- 定格DC電圧
- Up to 1200V DC
- 定格電流
- 16A–32A
- ポール構成
- 4P
- エンクロージャー
- IP66
VIOX NL1
Photovoltaic DC isolator switch- 定格DC電圧
- Up to 1200V DC
- 定格電流
- 16A–32A
- ポール構成
- 4P
- エンクロージャー
- IP20
VIOX NL1/T
Photovoltaic DC isolator switch- 定格DC電圧
- Up to 1200V DC
- 定格電流
- 16A–32A
- ポール構成
- 4P
- エンクロージャー
- IP20
VIOX L2
Photovoltaic DC isolator switch- 定格DC電圧
- Up to 1200V DC
- 定格電流
- 16A–32A
- ポール構成
- 4P
- エンクロージャー
- IP20
VIOX L1
Photovoltaic DC isolator switch- 定格DC電圧
- Up to 1200V DC
- ポール構成
- 4P
- エンクロージャー
- IP20
- システム
- Solar PV / DC
VIOX UKPD32 VZVH4
Photovoltaic DC isolator switch- 定格DC電圧
- Up to 1500V DC
- エンクロージャー
- IP67
- システム
- Solar PV / DC
VIOX UKPD32 VZV
Photovoltaic DC isolator switch- 定格DC電圧
- Up to 1500V DC
- エンクロージャー
- IP67
- システム
- 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
Blank cells mean the value is not available in the current product summary. Open the model page or request its datasheet before specification.
| シリーズ | 定格DC電圧 | 定格電流 | ポール構成 | 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 |
DCアイソレータの用途
Typical environments where the exact product characteristics must be verified.
住宅
Rooftop PV and residential solar installations requiring an accessible, correctly enclosed DC disconnect.
産業オートメーション
Selected industrial DC circuits where voltage, current and switching duty match the device documentation.
太陽光発電およびエネルギー貯蔵
Manual DC isolation between PV strings, inverters and related solar equipment where the selected series is appropriately rated.
DC Isolator Selection Questions
Quick answers for preliminary product-family comparison before detailed circuit verification.
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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