SP240V65KA — Whole House Surge Protector (120/240V Split-Phase, 65kA)
$99.00
Overview
The SP240V65KA is a high-performance Type 1 surge protective device (SPD) designed to help protect equipment connected to 120/240 VAC split-phase electrical systems. It clamps damaging overvoltage events and helps reduce failures caused by lightning-induced surges and utility switching transients.
Key Benefits
Whole-home protection for 120/240V split-phase panels
Helps reduce surge-related failures in HVAC systems, appliances, and electronics
Indoor/outdoor rated NEMA 4X enclosure
Installer-friendly lead length for flexible mounting near the panel
Simple status check with a single green LED
Reliable surge protection for home & light commercial panels
The SP240V65KA is a high-performance Type 1 surge protective device (SPD) designed to help protect equipment connected to 120/240 VAC split-phase electrical systems. It clamps damaging overvoltage events and helps reduce failures caused by lightning-induced surges and utility switching transients.
Built for real installs (36" leads for clean routing, outdoor rated)
120/240V split-phase, 50/60Hz operation
65kA surge current rating (model SP240V65KA)
Performance Highlights
Surge current rating: 65kA
SCCR: 100kA
Nominal discharge current (In): 10kA
VPR: 500V L-N, 1000V L-L
MCOV: 150V L-N, 300V L-L
Status Indicator (Single LED)
GREEN LED ON: Protected (input power OK and surge protector OK)
GREEN LED OFF: Unprotected (SPD is damaged and needs to be replaced)
Installation Overview (Summary)
Installation should be performed by a qualified, licensed electrical professional and in accordance with national and local electrical codes.
For best performance:
Mount the SPD as close to the panel entry as possible
Keep leads as short and straight as practical
Typical connections:
Green → Equipment Ground
White → Neutral
Red/Black → L1/L2 (split-phase)
Safety / Service Notes
Do not Hi-Pot test this SPD—damage will occur and warranty will be void.
No serviceable parts; tampering voids warranty.
Suitable for circuits not exceeding 100,000 RMS symmetrical amps.
Compliance
ETL Listed to UL 1449 (5th Edition) and compliant with CSA C22.2 No. 269.1 & 269.2.
Specifications
Model: SP240V65KA
System Voltage: 120/240V Split-Phase, 50/60Hz
Surge Current Rating: 65kA
SCCR: 100kA
In: 10kA
VPR: 500V L-N, 1000V L-L
MCOV: 150V L-N, 300V L-L
Leads: 36 in / 12 AWG
Enclosure: NEMA 4X (Indoor/Outdoor)
Mounting: 1/2″ conduit fitting (use 1/2″ knockout or properly sized hole)
Status Indicator: Single GREEN LED (ON = protected / OFF = replace)
Product Details
| Weight | 8 oz |
|---|---|
| Dimensions | 2.5 × 2.4 × 2 in |
| Application | Commercial, EV Charging Station, Farm, Generator, Home, HVAC, Irrigation, Marine, RV, Solar, Wind |
| Connection Type | Hardwire |
| Environmental Rating | Indoor, Outdoor |
| Service Type | Split Phase |
| Surge Current Rating (A) | 65kA |
| Type of Electrical Current | AC |
| SPD Classification | Type 1, Type 2 |
| Voltage (Vac) | 120, 240 |
| Surge Type Category Rating | Lightning |
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 SP240V65KA is suitable for the electrical system where it will be installed.
Panel / Service Equipment Installation Notes
- Install the surge protector at the main service panel, subpanel, disconnect, or other approved electrical equipment location.
- Mount the surge protector securely using the approved mounting method 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 that the green status light is illuminated. If the green status light is not on, disconnect power and inspect the installation before placing the system back into service.
Refer to the product label and installation instructions for the correct wiring configuration, breaker or connection requirements, 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.
- Flush Mount Plate FMP-32 — $20.00
FAQ
What is the SP240V65KA mainly used for?
The SP240V65KA is commonly used as an entry-level whole-house surge protector for residential and light commercial 120/240V split-phase electrical systems.
Where is the SP240V65KA installed?
The SP240V65KA is typically installed at the main electrical panel, service equipment, or a 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 SP240V65KA is designed for 120/240V split-phase electrical systems commonly used in homes, small businesses, garages, workshops, and light commercial applications.
Can the SP240V65KA be used as a whole-house surge protector?
Yes. The SP240V65KA is designed for whole-house surge protection applications when properly installed on a compatible 120/240V split-phase electrical system.
How is the SP240V65KA different from the SP240V50KA?
The SP240V50KA is often used for equipment-level protection on HVAC condensers, pumps, and dedicated equipment circuits. The SP240V65KA is a better fit for customers looking for an entry-level whole-house surge protector at the electrical panel.
Should I choose the SP240V65KA or a larger Bad Wolf model?
The SP240V65KA is a good entry-level choice for whole-house surge protection. Customers who want a higher surge current rating or a higher level of protection may want to consider the SP240V100KA, SP240V200KA, or SP240V400KA models.
What does the 65KA rating mean?
The 65KA 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 SP240V65KA 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.
What does the status light mean?
The status light provides a visual indication of protection status. Green means the surge protector is functioning. If the light is off, the device should be replaced.
Can this surge protector be installed outdoors?
Yes. The SP240V65KA 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, 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.
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.