DC SPD 1000V 2 Pole | Solar Surge Protector

Looking for a DC SPD 2 pole 1000V price in Pakistan for a solar combiner box, inverter-side DC panel, or rooftop PV protection setup? This CNC Electric solar surge protector is built for installers and buyers who want proper DC-side surge control instead of leaving the photovoltaic system exposed to lightning-related and switching transients. In Pakistan, solar installations often face harsh weather, unstable grid environments, and exposed rooftop cable runs, which makes a dedicated SPD much more than an optional accessory. For solar installers, EPC teams, and panel builders, this is a practical protection device for cleaner and more reliable DC-side system design.

Key Features

• 2 pole DC surge protection device designed for solar PV systems and other DC-side photovoltaic applications.
• 1000V DC maximum continuous working voltage on the live local page, making it suitable for serious solar DC protection work.
• Nominal discharge current In 20kA and maximum discharge current Imax 40kA for practical surge-handling duty.
• T1+T2 test category gives it a stronger positioning than a basic light-duty surge accessory for solar use.
• Pluggable modular design helps maintenance and replacement without disturbing the whole panel layout.
• Fast response time up to 25ns based on zinc oxide technology, according to the local product page.
• Green status window shows normal condition and red indicates a failed module that should be replaced.
• A natural match for panels that also include DC Breakers, DC Isolators, Solar DB Bundles, and Electrical Cables.

Technical Specifications

Product Range / Variant Table

This page is the full 2-pole 1000V SPD device, not the lower-priced cartridge-only replacement item. That distinction matters during ordering, because many buyers confuse the replaceable module with the complete DIN-rail SPD.

Applications

• Solar PV combiner boxes where the DC side needs surge protection before transients travel toward the inverter or downstream equipment.
• PV distribution cabinets in Lahore, Karachi, or Islamabad where rooftop exposure makes surge control more important than many buyers first assume.
• Commercial and residential solar installations where DC-side cables are exposed to lightning-related and switching-related surge stress.
• Solar systems that already use DC Breakers and DC Isolators and now need a more complete protection layout.
• PV control panels where a replaceable pluggable SPD module is preferable to a one-piece throwaway approach.
• Solar DB builds that aim for a more professional accessory set instead of leaving the DC side without dedicated surge control.

Sizing / Selection Guide

Choose this SPD when the solar DC side needs a full 2-pole 1000V device and the project requires more than just a replacement cartridge. The key checks are DC system voltage, the SPD class needed, the panel layout, and whether the buyer is purchasing the complete SPD or only the module.

• Choose this full 2-pole SPD when the panel needs the complete DIN-rail surge-protection device for the DC side.
• Choose the cartridge only when the base SPD is already installed and only the failed pluggable module needs replacement.
• Choose it for 1000V DC systems and make sure the panel's actual voltage class matches the SPD selection.
• Build the full solar DC side correctly with DC breakers, DC isolators, and good cabling instead of expecting the SPD to solve every DC-side risk.
• Check the panel layout so the DIN-rail SPD, conductors, and earthing path are all installed in a clean and technically sensible way.

DC SPD vs Alternatives — Why CNC?

For Pakistani solar buyers, the real comparison is not just SPD brand versus SPD brand. It is full DC SPD versus cartridge-only part, and proper solar surge-protection design versus leaving the DC side exposed. That is where this CNC Electric 2-pole SPD becomes the more practical choice.

What This Product Does NOT Protect Against

• It is not a DC breaker and does not replace overload or short-circuit protection.
• It is not a DC isolator and does not replace maintenance disconnection hardware.
• It does not fix poor earthing, weak cable routing, or bad panel layout. SPD performance depends on the whole installation being designed properly.
• It does not make the solar system immune to every lightning or DC-side design problem. It is one part of the protection strategy, not the whole strategy.
• It should not be confused with the cartridge-only replacement part sold separately at a lower price.

Installation Guide

1. Confirm the solar DC system voltage matches the SPD's 1000V DC application class before installation.
2. Mount the full SPD securely on DIN35 rail inside the PV combiner box or DC distribution panel.
3. Keep the connection path neat and practical, especially the SPD-to-earth route, because good surge control depends on sound installation discipline.
4. Coordinate the SPD with the rest of the DC panel using DC breakers, DC isolators, and proper solar cable selection.
5. After commissioning, check the status window and confirm the panel layout makes future module replacement easy if the cartridge ever fails.
6. For a better solar safety build, pair the panel with proper enclosure planning and the Fire Extinguisher Guide.

Cross-Category Links

• DC SPD
• DC Breakers
• DC Isolators
• Solar DB Bundles
• Electrical Cables
• Fire Extinguishers
• SPD Full Form Guide
• DC Breaker Guide
• Solar DB Box Guide
• Fire Extinguisher Guide

FAQs

What is a DC SPD?

A DC SPD is a surge protection device used on the DC side of a system, especially solar PV systems, to divert transient overvoltage away from sensitive equipment.

What is the DC SPD 2 Pole 1000V price in Pakistan?

The live CNC Electric Pakistan page currently shows this full 2-pole 1000V DC SPD at Rs.3,700.

Why is the full SPD more expensive than the cartridge?

Because the full SPD includes the complete DIN-rail body and module arrangement, while the cartridge is only the replaceable internal module and not the whole device.

Is this SPD suitable for solar PV systems?

Yes. The local page directly positions it for photovoltaic systems, PV distribution cabinets, and combiner boxes.

What are the In and Imax values of this DC SPD?

The live page shows nominal discharge current In 20kA and maximum discharge current Imax 40kA.

What does T1+T2 mean on this SPD?

It means the device is positioned to cover both Class I and Class II surge-test categories as published on the local page, giving it a stronger solar surge-protection role than a lighter basic SPD.

Can I replace the module if it fails?

Yes. The local page says it is a pluggable module design, and the status window shows green in normal condition and red when the module is defective.

Is this an overload or short-circuit protection device?

No. It is a surge protection device, not a DC breaker. Overload and short-circuit protection still need the right breaker and panel design.

Can this replace a DC isolator?

No. A DC SPD cannot replace a DC isolator. Surge protection and maintenance isolation are different jobs and need different devices.

What should I add with this SPD for a better solar DC panel?

A better solar DC panel usually includes DC breakers, DC isolators, the right cables, and nearby panel fire protection.

If you need a full 2-pole 1000V DC SPD in Pakistan rather than just a cartridge or a makeshift surge solution, this CNC Electric unit is a strong practical choice. It is clearly positioned for solar PV DC panels, gives you a pluggable replaceable module, and fits into a professional DIN-rail solar protection layout. For stock confirmation, panel matching, or help deciding between the full SPD and the replacement cartridge, contact CNC Electric Pakistan on WhatsApp before ordering.