Products/PV System Control/Rapid Shutdown Device
PRODUCT CATEGORY · PV emergency shutdown

1500V DC Rapid Shutdown Device

String-level photovoltaic emergency shutdown for safer rooftop response, servicing and system isolation.

Maximum DC voltage1500 V DC
Maximum DC current40 A
Operating references1500V/26A; 1250V/32A; 1000V/40A; 800V/40A
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VIOX 1500V firefighter safety switches for one to ten photovoltaic strings
01 / PRODUCT RANGE

Firefighter safety switches for 1–10 PV strings

Select a standard VIOX reference by string count. Odd-string configurations can be reviewed as project-specific variants.

VIOX 1500V firefighter safety switches for one to ten photovoltaic strings01
VO-RSD Series

VO-RSD-1500-40-01

Number of strings
1
Maximum DC voltage
1500 V DC
Maximum DC current
40 A
Protection degree
IP66
VIOX 1500V firefighter safety switches for one to ten photovoltaic strings02
VO-RSD Series

VO-RSD-1500-40-02

Number of strings
2
Maximum DC voltage
1500 V DC
Maximum DC current
40 A
Protection degree
IP66
VIOX 1500V firefighter safety switches for one to ten photovoltaic strings03
VO-RSD Series

VO-RSD-1500-40-04

Number of strings
4
Maximum DC voltage
1500 V DC
Maximum DC current
40 A
Protection degree
IP66
VIOX 1500V firefighter safety switches for one to ten photovoltaic strings04
VO-RSD Series

VO-RSD-1500-40-06

Number of strings
6
Maximum DC voltage
1500 V DC
Maximum DC current
40 A
Protection degree
IP66
VIOX 1500V firefighter safety switches for one to ten photovoltaic strings05
VO-RSD Series

VO-RSD-1500-40-08

Number of strings
8
Maximum DC voltage
1500 V DC
Maximum DC current
40 A
Protection degree
IP66
VIOX 1500V firefighter safety switches for one to ten photovoltaic strings06
VO-RSD Series

VO-RSD-1500-40-10

Number of strings
10
Maximum DC voltage
1500 V DC
Maximum DC current
40 A
Protection degree
IP66

VIOX rapid shutdown devices support module-level or string-level shutdown strategies for rooftop and commercial photovoltaic systems.

  • Electrical ratings reviewed against the application
  • OEM labeling and packaging support
  • Documents matched to the confirmed order code
03 / TECHNICAL REFERENCE

Compare the VO-RSD 1500V model range

Use these values for initial sourcing. Final ratings and order references are confirmed in the approved quotation.

ReferenceAvailable rangeSelection note
Standard string counts1, 2, 4, 6, 8 and 10Select by the number of independent PV strings.
Maximum DC voltage1500 V DCVerify cold-weather open-circuit voltage.
Maximum current reference40 AConfirm the applicable voltage/current combination.
ProtectionIP66 / Class IIFor outdoor photovoltaic installations.
  1. 01Select the number of independent PV strings.
  2. 02Confirm maximum open-circuit voltage at the minimum site temperature.
  3. 03Confirm string operating current against the voltage/current reference.
  4. 04Confirm the AC control supply, shutdown method and feedback interface.
  5. 05Request the controlled datasheet and applicable certification evidence before approval.
05 / APPLICATIONS

PV shutdown applications

Final suitability should be confirmed against the electrical design, protection study and local requirements.

01

Residential rooftops

One- and two-string references for compact residential photovoltaic arrays.

02

Commercial rooftops

Four- to ten-string references for larger distributed photovoltaic systems.

03

Emergency isolation

String-level DC shutdown to support emergency-response and maintenance procedures.

06 / MANUFACTURING & OEM

VIOX OEM firefighter safety switch supply

Project supply can include controlled markings, packaging and documentation after the required ratings, interfaces and market approvals are confirmed.

01

Specification review

Electrical ratings, application conditions and product configuration are reviewed before quotation.

02

Model confirmation

The selected reference, available options and controlled documents are aligned to the order.

03

OEM presentation

Private labeling, product marking and packaging requirements can be reviewed for repeat supply.

04

Production release

Confirmed product identity, quantity and documentation move into controlled production and inspection.

How many PV strings can the VO-RSD series control?+

The standard VIOX range covers one, two, four, six, eight and ten PV strings.

What is the maximum DC voltage?+

The listed maximum system voltage is 1500 V DC. Always verify the array open-circuit voltage at the lowest design temperature.

Does the switch shut down automatically at high temperature?+

The listed internal temperature trigger is 70°C, at which the switch initiates automatic shutdown.

08 / Knowledge / Firefighter Safety Switch

Technical guidance for better product decisions.

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PROJECT-SPECIFIC SUPPLY

Confirm the right firefighter safety switch for your system.