Surge Protection Devices (SPDs)

Surge Protection Devices in Pakistan

Protect solar, household and commercial electrical systems from transient voltage surges with correctly rated surge protection devices (SPDs). HN Electric supplies AC and DC SPDs for suitable distribution boards, solar arrays and electrical panels.

An SPD helps divert short-duration surge energy away from connected equipment. It does not replace a circuit breaker, voltage protector, earthing system or professional installation. Effective protection depends on device type, system voltage, earthing quality, cable routing and installation design.

AC and DC Surge Protection

• DC SPDs: intended for compatible solar PV and other DC applications at the stated voltage rating.
• AC SPDs: used in suitable household, commercial and three-phase electrical panels.
• Multi-pole devices: available for different single-phase and three-phase configurations.

How to Choose an SPD

Confirm whether the circuit is AC or DC, the maximum operating voltage, number of poles and required surge rating. Check the product specification and system design before purchase. For coordinated protection, also review our circuit breakers and voltage protectors.

Order SPDs with Nationwide Delivery

Compare available models and prices online. HN Electric delivers electrical and solar protection products across Pakistan and can assist with product selection before ordering.

Frequently Asked Questions

Does an SPD protect against continuous high voltage?

An SPD is primarily intended for short-duration surges. Continuous over-voltage protection normally requires a suitable voltage protection device.

Can one SPD be used for both AC and DC?

Use a device specifically rated and approved for the circuit type and voltage. Do not substitute an AC-only SPD in a DC solar circuit.