Solar PV Isolator Switch DC Disconnector 1000V 32A
Solar PV Isolator Switch DC Disconnector 1000V 32A
The 4P 32A 1000V DC PV Isolator Switch is a heavy-duty, DIN rail mountable rotary disconnect switch specifically designed for solar photovoltaic systems. Rated at 1000V DC and 32A, it provides a visible, lockable break in the DC circuit, allowing technicians to safely isolate solar panels, combiner boxes, and inverters for maintenance. With robust construction, arc suppression contacts, and compliance with IEC standards, it is an essential safety component for residential and commercial solar installations.
The 4P 32A 1000V DC PV Isolator Switch is a heavy-duty, DIN rail mountable rotary disconnect switch specifically designed for solar photovoltaic systems. Rated at 1000V DC and 32A, it provides a visible, lockable break in the DC circuit, allowing technicians to safely isolate solar panels, combiner boxes, and inverters for maintenance. With robust construction, arc suppression contacts, and compliance with IEC standards, it is an essential safety component for residential and commercial solar installations.
1. Product Overview
The 4P 32A 1000V DC PV Isolator Switch is a purpose-built rotary disconnect switch engineered for the safety requirements of solar photovoltaic systems. Designed for 35mm DIN rail mounting, this 4-pole isolator provides a visible, lockable break in the high-voltage DC circuit, enabling technicians to safely isolate solar panels, combiner boxes, and inverters for maintenance or troubleshooting.
Rated for 1000V DC and 32A continuous current, the switch features a robust rotary mechanism with clear ON/OFF markings and a lockable handle to prevent accidental re-energization. With high contact reliability, arc suppression technology, and compliance with international safety standards, it is the ideal solution for ensuring safe working conditions in both residential and commercial solar installations.
2. Key Features
- 4-Pole 1000V DC Rated: Supports modern high-voltage solar systems up to 1000V DC and 32A continuous current.
- Visible Break Mechanism: Clear rotary handle provides a physical, visible break to confirm the circuit is fully isolated.
- Lockable Handle: The handle can be secured in the OFF position with a padlock, preventing accidental or unauthorized reconnection.
- DIN Rail Mounting: Standard 35mm DIN rail design for easy installation in combiner boxes and control panels.
- High Breaking Capacity: Designed to safely interrupt the rated DC current without damage or sustained arcing.
- Robust Construction: Flame-retardant housing and silver-plated contacts for long service life in harsh environments.
- Compact & Space-Saving: Slim profile saves panel space, ideal for high-density solar combiner boxes.
- Safety Compliant: Meets IEC 60947-3 standards for low-voltage disconnect switches.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | 4-Pole DC Isolator Switch |
| Rated Voltage (DC) | 1000V DC |
| Rated Current | 32A |
| Poles | 4P |
| Operation Type | Rotary ON/OFF |
| Mounting Type | 35mm DIN Rail |
| Handle Feature | Lockable in OFF position |
| Housing Material | Flame-retardant engineering plastic (UL94 V-0) |
| Operating Temperature | -25°C ~ +70°C |
| Compliance | IEC 60947-3, CE certified |
4. Working Principle
The PV isolator switch provides a physical, visible break in the DC circuit:
- Normal Operation (ON): The rotary handle is set to the ON position, allowing current to flow through the contacts to power the system.
- Isolation (OFF): Rotating the handle to the OFF position physically opens all contacts, creating a visible break in the circuit.
- Safety Lockout: The handle can be locked in the OFF position to prevent accidental reconnection during maintenance.
- Arc Suppression: The internal contact design suppresses arcs during switching, ensuring safe operation at high DC voltages.
5. Applications
- Solar Photovoltaic Systems: DC-side isolation for residential and commercial solar arrays.
- Combiner Boxes: Isolating individual strings or the entire array for maintenance.
- Inverter Installations: Disconnecting the inverter from the solar array for servicing or replacement.
- Off-Grid Power Systems: Isolating battery banks and solar panels in remote installations.
- Industrial DC Systems: Isolating DC power circuits in automation and control panels.
6. Installation & Operation Instructions
- Mounting: Snap the isolator switch onto a standard 35mm DIN rail inside the combiner box or control panel.
- Wiring: Connect the positive and negative solar leads to the corresponding line and load terminals, ensuring correct polarity.
- Operation:
- Rotate the handle clockwise to the ON position for normal operation.
- Rotate the handle counterclockwise to the OFF position for isolation.
- Lock the handle in the OFF position with a padlock during maintenance.
- Safety Notes:
- Always verify the circuit is fully de-energized before performing maintenance.
- Do not operate the isolator under load unless it is rated for load-breaking duty.
7. Frequently Asked Questions (FAQ)
Q1: What is the purpose of a PV isolator switch?
A PV isolator provides a visible, lockable break in the DC circuit, allowing technicians to safely isolate solar panels and inverters for maintenance, preventing electric shock hazards.
Q2: Can this isolator be used for both AC and DC circuits?
No, this model is specifically designed for 1000V DC solar systems and is not intended for AC use.
Q3: What does the “4P” designation mean?
A 4-pole isolator switches all four conductors, which in DC solar applications allows it to isolate two positive and two negative leads, or both poles of two separate strings.
Q4: Is the handle lockable?
Yes, the handle can be locked in the OFF position with a padlock to prevent accidental or unauthorized reconnection during maintenance.
Q5: Can I install this isolator outdoors?
The isolator itself is rated for indoor use and must be installed inside a weatherproof enclosure (e.g., a solar combiner box) for outdoor applications.
Q6: Is this isolator CE certified?
Yes, it complies with IEC 60947-3 standards and carries the CE mark, ensuring it meets international safety requirements for low-voltage disconnect switches.
8. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
- Contact our engineering team for custom pole configurations or OEM/ODM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
The 4P 32A 1000V DC PV Isolator Switch is a purpose-built rotary disconnect switch engineered for the safety requirements of solar photovoltaic systems. Designed for 35mm DIN rail mounting, this 4-pole isolator provides a visible, lockable break in the high-voltage DC circuit, enabling technicians to safely isolate solar panels, combiner boxes, and inverters for maintenance or troubleshooting.
Rated for 1000V DC and 32A continuous current, the switch features a robust rotary mechanism with clear ON/OFF markings and a lockable handle to prevent accidental re-energization. With high contact reliability, arc suppression technology, and compliance with international safety standards, it is the ideal solution for ensuring safe working conditions in both residential and commercial solar installations.
2. Key Features
- 4-Pole 1000V DC Rated: Supports modern high-voltage solar systems up to 1000V DC and 32A continuous current.
- Visible Break Mechanism: Clear rotary handle provides a physical, visible break to confirm the circuit is fully isolated.
- Lockable Handle: The handle can be secured in the OFF position with a padlock, preventing accidental or unauthorized reconnection.
- DIN Rail Mounting: Standard 35mm DIN rail design for easy installation in combiner boxes and control panels.
- High Breaking Capacity: Designed to safely interrupt the rated DC current without damage or sustained arcing.
- Robust Construction: Flame-retardant housing and silver-plated contacts for long service life in harsh environments.
- Compact & Space-Saving: Slim profile saves panel space, ideal for high-density solar combiner boxes.
- Safety Compliant: Meets IEC 60947-3 standards for low-voltage disconnect switches.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | 4-Pole DC Isolator Switch |
| Rated Voltage (DC) | 1000V DC |
| Rated Current | 32A |
| Poles | 4P |
| Operation Type | Rotary ON/OFF |
| Mounting Type | 35mm DIN Rail |
| Handle Feature | Lockable in OFF position |
| Housing Material | Flame-retardant engineering plastic (UL94 V-0) |
| Operating Temperature | -25°C ~ +70°C |
| Compliance | IEC 60947-3, CE certified |
4. Working Principle
The PV isolator switch provides a physical, visible break in the DC circuit:
- Normal Operation (ON): The rotary handle is set to the ON position, allowing current to flow through the contacts to power the system.
- Isolation (OFF): Rotating the handle to the OFF position physically opens all contacts, creating a visible break in the circuit.
- Safety Lockout: The handle can be locked in the OFF position to prevent accidental reconnection during maintenance.
- Arc Suppression: The internal contact design suppresses arcs during switching, ensuring safe operation at high DC voltages.
5. Applications
- Solar Photovoltaic Systems: DC-side isolation for residential and commercial solar arrays.
- Combiner Boxes: Isolating individual strings or the entire array for maintenance.
- Inverter Installations: Disconnecting the inverter from the solar array for servicing or replacement.
- Off-Grid Power Systems: Isolating battery banks and solar panels in remote installations.
- Industrial DC Systems: Isolating DC power circuits in automation and control panels.
6. Installation & Operation Instructions
- Mounting: Snap the isolator switch onto a standard 35mm DIN rail inside the combiner box or control panel.
- Wiring: Connect the positive and negative solar leads to the corresponding line and load terminals, ensuring correct polarity.
- Operation:
- Rotate the handle clockwise to the ON position for normal operation.
- Rotate the handle counterclockwise to the OFF position for isolation.
- Lock the handle in the OFF position with a padlock during maintenance.
- Safety Notes:
- Always verify the circuit is fully de-energized before performing maintenance.
- Do not operate the isolator under load unless it is rated for load-breaking duty.
7. Frequently Asked Questions (FAQ)
Q1: What is the purpose of a PV isolator switch?
A PV isolator provides a visible, lockable break in the DC circuit, allowing technicians to safely isolate solar panels and inverters for maintenance, preventing electric shock hazards.
Q2: Can this isolator be used for both AC and DC circuits?
No, this model is specifically designed for 1000V DC solar systems and is not intended for AC use.
Q3: What does the “4P” designation mean?
A 4-pole isolator switches all four conductors, which in DC solar applications allows it to isolate two positive and two negative leads, or both poles of two separate strings.
Q4: Is the handle lockable?
Yes, the handle can be locked in the OFF position with a padlock to prevent accidental or unauthorized reconnection during maintenance.
Q5: Can I install this isolator outdoors?
The isolator itself is rated for indoor use and must be installed inside a weatherproof enclosure (e.g., a solar combiner box) for outdoor applications.
Q6: Is this isolator CE certified?
Yes, it complies with IEC 60947-3 standards and carries the CE mark, ensuring it meets international safety requirements for low-voltage disconnect switches.
8. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
- Contact our engineering team for custom pole configurations or OEM/ODM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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