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HSPD Square Whole Home Surge Protective Device, Type 1 SPD, Whole House Surge Protector, AC Surge Protection, 120/240VAC (HSPD-25)
HSPD Square Whole Home Surge Protective Device, Type 1 SPD, Whole House Surge Protector, AC Surge Protection, 120/240VAC (HSPD-25)
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- Whole House Surge Protection: The HSPD is a whole-house surge protector that provides surge protection for all appliances connected to the electrical system
- Compact High-Capacity Design: The HSPD offers high capacity while maintaining a compact design. With a surge capacity of up to 25/50/80kA, it saves space without compromising performance
- High Compatibility: The HSPD is compatible with circuit breakers from any brand. Its durable casing makes it suitable for both indoor and outdoor installations
- Ultimate Protection Module: The U-SPM is the core technology of the HSPD. It effectively absorbs voltage spikes, extending the lifespan of electronic devices and appliances, reducing the need for frequent replacements and repairs. This saves you time and money
- After-Sales Service: If you need assistance, please contact us directly. We will provide you with high-quality after-sales support

Product Catalog Number | HEPD-25 |
Maximum Surge Current | 25 kA |
System Voltage | 120/240 V |
INOM | 10kA |
MCOV | 150V L-N, 300V L-L |
VPR | 700V L-N, 1200V L-L |
Connection Method | Parallel, 14 AWG |
Wire Length | 17.5 ± 2 in. (445.5 ±50 mm) |
Operating Temperature | -40°F to +149°F (-40°C to +65°C) |
Storage Temperature | -40°F to +149°F (-40°C to +65°C) |
Frequency | 50/60 Hz |
Diagnostics | Green Status LED |

Whole Home Surge Protective Device
The HSPD-25 is a whole-house surge protection device equipped with the U-SPM ultimate surge protection module. Its core technology allows it to absorb destructive surges in the circuit, reducing the need for equipment replacement and repairs, ultimately saving you time and money. The clear indicator lights provide a straightforward display of its protection status, while the sturdy, durable casing makes it suitable for both indoor and outdoor installations. As a surge protection device, the HSPD-25 is compatible with circuit breakers from any brand. Its compact design saves space while providing surge protection with a capacity of up to 25,000 amps, safeguarding all appliances connected to your electrical system.


Where Do Surges Come From?
In the past, surges were primarily attributed to extreme weather events like thunderstorms and lightning. However, research by Gloyatin's R&D team shows that, in reality, 80% of surges come from everyday occurrences. These include unstable power supplies, outdated electrical systems, frequent appliance switching, and electrical equipment failures. While surges from extreme weather can be more destructive, those caused by everyday events should not be underestimated.
HSPD - Your Solution to Surge Protection
What is a Surge? What Harm Can It Cause?
A surge is a destructive electrical event that involves a sudden and intense rise in voltage in the power system. It can damage electrical appliances through AC power lines and cables. Surges may cause equipment failure, power system collapse, and reduced lifespan of electrical devices. While the surge voltage typically lasts only milliseconds to a few seconds, its impact can be significant.
Why choose HSPD as your surge protection solution?
- Equipped with U-SPM for comprehensive protection and enhanced safeguarding
- Compact design saves space
- Supports higher surge capacity
- Simple and easy-to-read status indicators
- Durable casing suitable for both indoor and outdoor installation
HSPD-25 | HSPD-50 | HSPD-80 | |
---|---|---|---|
Price | $48.19$48.19 | $58.15$58.15 | $65.16$65.16 |
Maximum Surge Current | 25,000 Amps | 50,000 Amps | 80,000 Amps |
System Voltage | 120/240 V | 120/240 V | 120/240 V |
Status Indicator | Green Status LED | Green Status LED | Green Status LED |
Dimensions (inches) | 3.3X3.2X2.2 | 3.3X3.2X2.2 | 3.3X3.2X2.2 |
Capacity to Size Ratio | 1076.10 | 2152.20 | 3443.53 |

HSPD Whole House Surge Protection Series
HSPD-25 is part of the HSPD modular surge protection series, which includes the following models: HSPD-80, HSPD-50, and HSPD-25. The HSPD-25 is equipped with a surge capacity of 25,000 amps, making it a good choice for reliable protection within the HSPD series.
The entire HSPD product line is designed to protect household electrical and electronic equipment from voltage transients and surge disturbances on AC power lines, and is suitable for both indoor and outdoor use. Gloyatin's HSPD series team has dedicated 8 years to the field of electrical safety, accumulating technical expertise and experience that are more professional and specialized. This focus is at the core of the exclusive U-SPM technology.

HSPD Whole House Surge Protection Series
HSPD-50 is part of the HSPD modular surge protection series, which includes the following models: HSPD-80, HSPD-50, and HSPD-25. The HSPD-50 is equipped with a surge capacity of 50,000 amps, making it a highly effective product in the HSPD series.
The entire HSPD product line is designed to protect household electrical and electronic equipment from voltage transients and surge disturbances on AC power lines, and is suitable for both indoor and outdoor use. Gloyatin's HSPD series team has dedicated 8 years to the field of electrical safety, accumulating technical expertise and experience that are more professional and specialized. This focus is at the core of the exclusive U-SPM technology.

HSPD Whole House Surge Protection Series
HSPD-80 is part of the HSPD modular surge protection series, which includes the following models: HSPD-80, HSPD-50, and HSPD-25. The HSPD-80 is equipped with a surge capacity of 80,000 amps, making it the highest-performing product in the HSPD series.
The entire HSPD product line is designed to protect household electrical and electronic equipment from voltage transients and surge disturbances on AC power lines, and is suitable for both indoor and outdoor use. Gloyatin's HSPD series team has dedicated 8 years to the field of electrical safety, accumulating technical expertise and experience that are more professional and specialized. This focus is at the core of the exclusive U-SPM technology.

HSPD-80

HSPD-50

HSPD-25

Please Note
If the SPD experiences issues during startup, it is likely due to grounding or misuse problems. You can receive after-sales support from Gloyatin's technical service center.