Home Surge Protectors
Shop Type 1, Type 2, and Type 3 surge protectors for residential power systems. Find the right solution for service entrance protection, panel protection, or point-of-use protection.
Made in the USA • U.S.-based support • Residential and light commercial applications
Choose the Right Surge Protector Type
Home surge protection is not one-size-fits-all. Type 1, Type 2, and Type 3 surge protectors are used for different installation locations and protection goals. Start by choosing the type that best fits your application.
Type 1 Surge Protectors
Designed for service entrance or first-line surge protection applications. Best for upstream protection where whole-home surge protection begins. These types of SPDs can be installed in Type 2 locations for a higher level of protection.
Type 2 Surge Protectors
Installed at the main panel or subpanel on the load side of the service disconnect. Ideal for downstream system protection.
Type 3 Surge Protectors
Installed close to the equipment being protected. Best for point-of-use protection for electronics and sensitive devices.
Layered Surge Protection Works Best
For better protection, many electrical systems use surge protection in layers — at the service entrance, at the panel, and at the connected equipment. Type 1, Type 2, and Type 3 surge protectors each serve different roles in a complete protection strategy.
Type 1
Service entrance
First-line protection
Type 2
Main panel or subpanel
Downstream protection
Type 3
Connected equipment
Point-of-use protection
Surge Protectors
Type 1 surge protectors are designed for service entrance and first-line surge protection applications. These models are ideal when you want whole-home protection at the electrical system level. Can be used as a Type 2 surge protector as well.
Compact & Standard Whole-Home Protection
Explore Type 1 surge protectors for residential 120/240V split-phase systems, from compact entry-level protection to stronger whole-home surge protection options.
SP240V50KA
Compact Type 1 whole-house surge protection for 120/240V split-phase electrical systems.
- Type 1 whole-house surge protector
- 120/240V split-phase application
- Compact protection solution
- Great entry-level option
$89.00
SP240V65KA
A stronger Type 1 whole-house surge protection option for residential electrical systems.
- Type 1 whole-house surge protector
- 120/240V split-phase application
- Increased surge protection capacity
- Ideal for residential installations
$99.00
SP240V100KA-A
Type 1 whole-house surge protection with higher capacity for dependable service-level protection.
- Type 1 whole-house surge protector
- 120/240V split-phase system
- Higher-capacity residential protection
- Strong service-level protection option
$159.00
SP240V100KA-B
A Type 1 whole-house surge protector built for strong residential surge protection performance.
- Type 1 whole-house surge protector
- 120/240V split-phase system
- High-capacity protection option
- Ideal for residential applications
$159.00
Higher-Capacity Whole-Home Protection
Explore higher-capacity Type 1 surge protectors for residential 120/240V split-phase systems when stronger whole-home surge protection is needed.
SP240V200KA
A higher-capacity Type 1 surge protector for strong whole-home protection at the electrical system level.
- Type 1 whole-house surge protector
- 120/240V split-phase system
- Higher-capacity surge protection
- Ideal for stronger system-level protection
$249.00
SP240V225KA
High-capacity Type 1 protection for customers who want stronger whole-home surge defense.
- Type 1 whole-house surge protector
- 120/240V split-phase system
- High-capacity protection design
- Strong residential surge protection option
$399.00
SP240V400KA
An extreme-capacity Type 1 whole-house surge protector for demanding residential protection needs.
- Type 1 whole-house surge protector
- 120/240V split-phase system
- Very high surge current capacity
- Premium system-level protection option
$499.00
EM Rated High-Capacity Protection
Explore premium Type 1 whole-house surge protectors built for EMP protection for 120/240V split-phase residential applications.
HSD240V
Premium Type 1 whole-house surge protection for 120/240V split-phase systems with rugged, high-capacity performance.
- Type 1 whole-house surge protector
- 260kA surge current capacity
- 120/240V split-phase application
- Rugged EMP protection
$349.00
PHSD240V
A premium high-capacity Type 1 surge protector built for powerful whole-home electrical system EMP protection.
- Type 1 whole-house surge protector
- 520kA surge current capacity
- Premium high-capacity protection
- Rugged EMP protection
$449.00
Surge Protectors
Type 2 surge protectors are installed on the load side of the service disconnect,
typically at the main panel or subpanel. These products are designed to help
protect downstream circuits and connected equipment.
SP240V185KA
$449.00
- Type 2 surge protector
- Panel-mounted downstream protection
- Designed for 120/240V split-phase systems
- Ideal for main panel or subpanel applications
- EMP surge protector
Surge Protectors
Type 3 surge protectors are installed at or near the equipment being protected. These are ideal for point-of-use protection for electronics, appliances, and other sensitive devices.
Inline Surge Protection
Explore premium Type 3 whole-house surge protectors built for 120V residential applications.
SSP120V
A Type 3 point-of-use surge protector for 120V equipment and sensitive connected devices.
- Type 3 point-of-use surge protector
- 120V application
- Protects connected equipment
- Great for sensitive electronics
$129.00
PSP120V
Type 3 equipment-level surge protection for 120V applications where point-of-use protection is needed.
- Type 3 point-of-use surge protector
- 120V application
- Equipment-level surge protection
- Ideal final layer of protection
$129.00
Which Surge Protector Type Is Right for Your Application?
Use this quick comparison to understand where each SPD type fits in a residential protection strategy.
Type 1
Best for: Service entrance or first-line protection.
Used for: Upstream whole-home protection.
Typical role: The first layer of surge defense.
Type 2
Best for: Main panels and subpanels.
Used for: Downstream electrical distribution protection.
Typical role: Panel-level surge protection.
Type 3
Best for: Electronics and point-of-use devices.
Used for: Final-layer equipment protection.
Typical role: Protection near the connected device.
Why Choose Bad Wolf Surge Protection
Bad Wolf offers surge protection solutions for service entrance, panel, and point-of-use applications, with options ranging from compact protection to premium high-capacity models.
Made in the USA
American-made surge protection solutions built for dependable performance.
Application-Focused Designs
Options for service entrance, panel, and point-of-use protection.
High-Capacity Models Available
Choose from compact to premium surge protection options.
U.S.-Based Support
Get help selecting the right model for your application.
Frequently Asked Questions
Find quick answers to common questions about choosing the right home surge protector for your application.
What is the difference between Type 1, Type 2, and Type 3 surge protectors?
Type 1 surge protectors are generally used for service entrance or first-line protection, Type 2 protectors are typically installed at the main panel or subpanel, and Type 3 protectors are installed near the equipment being protected.
Do I need a Type 1 or Type 2 surge protector for my home?
That depends on the installation location and the protection strategy for the system. Many homeowners start with service-level or panel-level protection, then add point-of-use protection where needed.
Can I use more than one surge protector in the same home?
Yes. A layered approach is common, using system-level protection together with point-of-use protection for sensitive electronics.
Are Type 3 surge protectors enough by themselves?
They are often best used as the final layer of protection near the equipment, rather than as the only layer in the system.
How do I choose the right surge current rating?
The right model depends on the application, installation location, and the level of protection you want. Higher-capacity models may be preferred for more demanding applications.
Need Help Choosing the Right Home Surge Protector?
Browse the product options above or contact Bad Wolf for help selecting the right Type 1, Type 2, or Type 3 surge protector for your application.
American-made surge protection solutions backed by dependable support and application-focused designs.