SP240V225KA — 225kA Whole House Surge Protector with EMP Protection for 120/240V Split-Phase
$399.00
SP240V225KA is a 225kA whole house surge protector for 120/240V split-phase electrical systems. This Type 1 SPD is Intertek ETL Listed to UL 1449 (5th Edition), Certified to CSA C22.2 No. 269.1 & 269.2, and tested to FCC 47 CFR Part 15: 2024 and ICES-003: 2020. Built with Bad Wolf Overwatch protection circuitry, it helps protect against lightning, utility switching surges, and electromagnetic surge events such as EMP, CME, and solar flare-related disturbances.
Protect your electrical service, panel, and connected equipment with the SP240V225KA, a high-capacity 225kA whole house surge protector designed for 120/240V split-phase systems. This Type 1 surge protective device (SPD) is built for demanding residential, commercial, agricultural, and off-grid applications where stronger surge protection is needed.
The SP240V225KA is Intertek ETL Listed to UL 1449 (5th Edition), Certified to CSA C22.2 No. 269.1 & 269.2, and tested to FCC 47 CFR Part 15: 2024 and ICES-003: 2020. Built with Bad Wolf’s exclusive Overwatch protection circuitry, this model is designed to help protect against damaging transient overvoltage events caused by lightning, utility switching, and electromagnetic surge conditions such as EMP, CME, and solar flare-related disturbances.
With 225kA surge current capacity, 100kA SCCR, 6 modes of protection, and a NEMA 4X / IP67 enclosure, the SP240V225KA is built for robust whole house and service panel surge protection in both indoor and outdoor installations.
Key Features
225kA surge current rating
Type 1 SPD
Designed for 120/240V AC split-phase systems
Intertek ETL Listed to UL 1449 (5th Edition)
Certified to CSA C22.2 No. 269.1 & 269.2
Tested to FCC 47 CFR Part 15: 2024 and ICES-003: 2020
Helps protect against lightning, utility switching surges, EMP, CME, and solar flare-related disturbances
6 protection modes
100kA SCCR
NEMA 4X, IP67 enclosure
Indoor / outdoor capable
Exclusive Overwatch Protection Circuitry
Fast surge response
LED status indicator system
36 inches of 10 AWG wire
5 year warranty
Technical Specifications
Model Number: SP240V225KA
Product Type: Whole House Surge Protector / Type 1 SPD
System Voltage: 120/240 VAC
Frequency: 50/60 Hz
System Type: Split-Phase
Nominal Surge Current Rating: 225kA
SCCR: 100kA
MCOV: 300V L-L, 150V L-G
VPR: 1000V L-L, 500V L-G
Protection Modes: L1-L2, L1-N, L2-N, L1-G, L2-G, N-G
Enclosure Rating: NEMA 4X, IP67
Flammability Rating: V-0
Lead Length: 36 inches
Wire Size: 10 AWG
Status Indicator: LED
Installation Type: Type 1 SPD
Breaker Requirement for Type 2 Installation: Requires 20A double pole circuit breaker (not included)
Listings, Certifications, and Testing
Intertek ETL Listed to UL 1449 (5th Edition)
Certified to CSA C22.2 No. 269.1 & 269.2
Tested to FCC 47 CFR Part 15: 2024
Tested to ICES-003: 2020
Applications
The SP240V225KA is ideal for helping protect:
Residential electrical panels
Whole house electrical systems
HVAC systems
Appliances
Smart home devices
Electronics
Agricultural systems
Commercial electrical systems
Backup power systems
Off-grid and solar-related applications
What This Surge Protector Helps Protect Against
The SP240V225KA is built to help protect against transient surge events including:
Lightning-induced surges
Utility grid switching surges
Power disturbances
Electromagnetic surge conditions such as EMP
CME and solar flare-related disturbances
Similar high-energy transient events
Why Choose the SP240V225KA
The SP240V225KA is designed for customers who need a more powerful whole house surge protector with a strong combination of surge capacity, safety compliance, and environmental durability. Its 225kA rating, ETL listing, CSA certification, FCC and ICES testing, and protection against EMP-like electromagnetic surge events make it a strong choice for demanding applications.
Installation Notes
Install the SP240V225KA in accordance with all applicable electrical codes and installation instructions.
Designed for 120/240V split-phase systems
Suitable for indoor or outdoor installation when installed correctly
Keep lead lengths as short and straight as possible for best performance
If installing as a Type 2 SPD, a 20A double pole circuit breaker is required and is not included
Product Details
| Weight | 19 oz |
|---|---|
| Dimensions | 6 × 3.25 × 2.25 in |
| Application | Commercial, EV Charging Station, Farm, Generator, Home, Irrigation, Marine, RV, Solar, Wind |
| Connection Type | Hardwire |
| Product Dimensions | 6"x3.25"x2.25" |
| Product Weight | 19oz |
| Surge Type Category Rating | EMP (E1, E2 and E3 Phase), Lightning, Solar Flare (CME) |
| Service Type | Split Phase |
| SPD Classification | Type 1, Type 2 |
| Surge Current Rating (A) | 225kA |
| Type of Electrical Current | AC |
| Voltage (Vac) | 240 |
| Environmental Rating | Indoor, Outdoor |
Specifications
Review the product details and product description for voltage, surge current rating, connection type, enclosure rating, wiring details, certifications, and other technical information.
For detailed product-specific ratings, refer to the specifications listed on this product page and any available product documentation.
Installation
Professional installation is recommended. Installation should be performed by a qualified electrician, licensed contractor, or qualified installer in accordance with the product instructions, applicable electrical codes, and local requirements.
Always disconnect power before installation and verify that the SP240V225KA is suitable for the electrical system where it will be installed.
Panel Installation Notes
- Install the surge protector at the main service panel, subpanel, disconnect, or other approved electrical equipment location.
- This model includes a 1/2" straight liquid-tight connector for flexible non-metallic liquid-tight tubing. Liquid-tight tubing, conduit, and any additional fittings or connectors required for the installation are supplied by the installer or customer.
- Mount the surge protector securely and make sure the liquid-tight connector is properly installed and tightened for the enclosure and installation location.
- Connect the conductors according to the product wiring diagram and applicable electrical code requirements.
- Use an appropriately rated breaker, disconnect, or connection method as required by the product instructions and local code.
- Keep all conductors as short and straight as possible between the surge protector and the point of connection.
- Do not sharply bend, coil, or unnecessarily extend the wires.
- Use proper fittings, strain relief, and enclosure practices for the installation location.
Status Indicator
After installation, restore power and verify the status lights.
- Green light on: The surge protector is functioning properly and the electrical system is protected.
- Red light on: The surge protector is damaged and must be replaced.
- No lights on: No power is being applied to the surge protector. The electrical connections and electrical service should be inspected before placing the system back into service.
Refer to the product label and installation instructions for the correct wiring configuration, breaker or connection requirements, status light behavior, and product-specific installation details.
Warranty
Bad Wolf surge protection devices include a 5-year product warranty.
Eligible products may also include connected equipment warranty coverage when properly installed and registered according to the warranty terms.
Please review the full warranty terms for complete details, limitations, registration requirements, and coverage information.
Accessories
Recommended accessories and related products for this item.
FAQ
What is the SP240V225KA mainly used for?
The SP240V225KA is commonly used as a high-capacity whole-house surge protector for residential, light commercial, garage, workshop, and small business 120/240V split-phase electrical systems.
Where is the SP240V225KA installed?
The SP240V225KA is typically installed at the main electrical panel, service equipment, or another compatible panel location to help protect connected equipment throughout the electrical system from damaging power surges.
What type of electrical system is this surge protector designed for?
The SP240V225KA is designed for 120/240V split-phase electrical systems commonly used in homes, garages, workshops, small businesses, and light commercial applications.
Can the SP240V225KA be used as a whole-house surge protector?
Yes. The SP240V225KA is designed for whole-house surge protection applications when properly installed on a compatible 120/240V split-phase electrical system.
How is the SP240V225KA different from the SP240V200KA?
The SP240V225KA has a higher surge current rating than the SP240V200KA and is the first level in this product group that also includes protection designed for indirect lightning effects and electromagnetic disturbance events such as EMP, CME, and solar flare related surge activity.
Does the SP240V225KA protect against lightning?
The SP240V225KA is designed to help protect against surge events caused by indirect lightning activity. No surge protector can guarantee protection from a direct lightning strike, but a properly installed surge protective device can help reduce the risk of damage from surge energy entering the electrical system.
Does the SP240V225KA provide EMP, CME, or solar flare protection?
Yes. The SP240V225KA is designed to help protect against damaging surge activity associated with electromagnetic disturbance events, including EMP, CME, and solar flare related electrical disturbances. Proper installation and system grounding are important for effective protection.
Should I choose the SP240V225KA or the SP240V400KA?
The SP240V225KA is a strong option for customers who want high-capacity whole-house surge protection with added protection for indirect lightning and electromagnetic disturbance events. Customers who want an even higher surge current rating may want to consider the SP240V400KA.
What does the 225KA rating mean?
The 225KA rating refers to the surge current capacity of the device. It is designed to help protect connected electrical equipment from damaging surge events when properly installed on a compatible system.
Is this a Type 1 surge protective device?
Yes. The SP240V225KA is a Type 1 surge protective device, which allows it to be installed on the line side or load side of the service disconnect when installed in accordance with the product instructions and applicable electrical codes.
Does this surge protector need to be installed with a circuit breaker?
This surge protector is a Type 1 surge protective device and does not have to be installed in conjunction with a circuit breaker when installed as a Type 1 SPD in accordance with the product instructions and applicable electrical codes.
If this surge protector is installed as a Type 2 SPD on the load side of the service disconnect, Bad Wolf recommends using a 20 amp double-pole circuit breaker unless otherwise required by the authority having jurisdiction, local code, or the specific installation conditions.
What do the LED indicator lights mean?
The SP240V225KA includes green and red LED indicator lights. Green means the surge protector is functioning correctly. Red means the surge protector needs to be replaced.
Can this surge protector be installed outdoors?
Yes. The SP240V225KA uses a durable enclosure suitable for indoor or outdoor installation when installed according to the product instructions and applicable electrical codes.
Who should install this product?
This product should be installed by a qualified electrician, licensed contractor, or qualified installer familiar with electrical panels, service equipment, grounding, bonding, and surge protective devices.
Does this product include a warranty?
Bad Wolf surge protection devices include a 5-year product warranty. Eligible products may also include connected equipment warranty coverage when properly installed and registered according to the warranty terms.