SP240V50KA 50kA Type 1 Whole-House Surge Protector – 120/240V – Liquid-Tight
$89.00
SP240V50KA 50kA Type 1 Whole-House Surge Protector
The SP240V50KA is a compact 50kA Type 1 whole-house surge protector designed for 120/240V split-phase electrical systems. It can be installed in compatible service-entrance applications and can also be used in appropriate load-side locations.
Its compact design and liquid-tight connection make it a practical choice for whole-house surge protection at the main electrical system, while also making it well suited for HVAC equipment, pumps, motors, subpanels, and other dedicated electrical loads.
Type 1 SPD — Can Also Be Installed in Compatible Type 2 Load-Side Locations
SP240V50KA 50kA Type 1 Whole-House Surge Protector
The Bad Wolf SP240V50KA is a compact, hardwired 50kA Type 1 surge protective device designed for 120/240V split-phase electrical systems. It provides a practical whole-house surge protection solution while maintaining a compact enclosure that is also well suited for dedicated equipment applications.
As a Type 1 SPD, the SP240V50KA can be installed in compatible service-entrance applications and can also be installed in appropriate load-side locations where a Type 2 SPD might otherwise be considered. Installation must follow the product listing, installation instructions, applicable electrical codes, and the configuration of the electrical system.
Whole-House and Equipment Protection
The SP240V50KA is suitable for whole-house surge protection and can also be used to protect electrical panels and circuits serving equipment such as:
- Whole-house 120/240V electrical systems
- Main electrical panels
- Compatible subpanels
- HVAC and air-conditioning equipment
- Heat pumps
- Well and pool pumps
- Motors and motor-driven equipment
- Garages and workshops
- Other dedicated 120/240V electrical loads
Compact Type 1 Design
With a 50kA surge current capacity, the SP240V50KA provides a compact starting point for homeowners who want permanently installed whole-house surge protection. Customers wanting additional surge-current capacity can also compare Bad Wolf's higher-capacity 65kA, 100kA, 200kA, 225kA, 400kA, HSD, and PHSD whole-house surge protector families.
Liquid-Tight Connection
The SP240V50KA uses a 1/2-inch liquid-tight connection, giving installers flexibility when mounting the surge protector adjacent to a compatible electrical panel or enclosure.
Type 1 Installation Flexibility
A Type 1 designation does not mean the SP240V50KA must be installed only at the service entrance. A properly selected Type 1 SPD can also be installed in a compatible Type 2/load-side location. This gives homeowners and installers greater flexibility when determining where whole-house surge protection should be installed.
SP240V50KA — Compact 50kA Type 1 whole-house surge protection with the versatility to also protect HVAC systems, pumps, motors, subpanels, and dedicated electrical equipment.
Product Details
| Weight | 8 oz |
|---|---|
| Dimensions | 2.5 × 2.4 × 2 in |
| Operating Voltage (Vac) | 120/240V |
| Electrical System | 120/240V Split Phase |
| Current Type | AC |
| SPD Type | Type 1, Type 2 |
| Recommended Applications | Electrical Panel, HVAC, Light Commercial Panel, Pump, Residential Panel, Service Entrance, Subpanel, Whole House |
| Installation / Connection Type | Liquid-Tight Fitting, Pre-wired Leads, Hardwire |
| Surge Current Capacity | 50kA |
| Surge Events Protected Against | Lightning-related surges, load switching transients, motor-generated surges, utility switching transients |
| Enclosure Rating | Indoor, IP67, NEMA 4X, Outdoor |
| Product Dimensions | 2.5 x 2.5 x 2.25 |
| Product Weight | 12 oz |
Installation
Professional installation is recommended.
The SP240V50KA connects directly to the electrical system and should be installed by a qualified electrical professional or other qualified installer in accordance with the product instructions, product label, applicable electrical codes, and local requirements.
Always disconnect power before installation. Verify that power has been disabled using an appropriate voltage-sensing device before working on the electrical system. Confirm that the SP240V50KA is compatible with the voltage, wiring configuration, and installation location before installation.
Whole-House / Panel Installation
The SP240V50KA is a 50kA Type 1 surge protective device designed for compatible 120/240V split-phase electrical systems. As a Type 1 SPD, it can be installed in compatible service-entrance applications and can also be installed in appropriate load-side locations.
- The SP240V50KA uses a 3-wire connection: L1, L2, and Ground. It does not require a neutral connection.
- The SPD may be used for whole-house surge protection at compatible service equipment, main electrical panels, disconnects, or other approved service-entrance locations when permitted by the product instructions and electrical system configuration.
- The SP240V50KA can also be installed in compatible load-side applications, including main panels and subpanels.
- A Type 1 SPD is not limited to service-entrance installation. The SP240V50KA may also be installed in an appropriate location where a Type 2/load-side SPD would normally be used.
HVAC, Pump, Motor & Dedicated Equipment Applications
In addition to whole-house protection, the compact SP240V50KA is well suited for dedicated electrical equipment and panel applications, including:
- HVAC condensers and heat pumps
- Mini-split outdoor equipment
- Pool pumps and pool equipment panels
- Well, irrigation, and septic pumps
- Motors and motor-driven equipment
- Garages and workshops
- Compatible subpanels
- Other dedicated 120/240V electrical loads
Liquid-Tight Mounting
- The SP240V50KA includes a 1/2-inch straight liquid-tight connector for connection using compatible 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 near the electrical equipment being protected using an installation method appropriate for the enclosure and location.
- Use proper fittings, strain relief, sealing methods, and enclosure practices for indoor or outdoor installations.
Electrical Connection
- Connect L1, L2, and Ground according to the product wiring diagram and product label.
- Install the surge protector as close to the electrical connection point as practical.
- Keep the SPD conductors as short and straight as practical.
- Avoid sharp bends, coils, loops, or unnecessary conductor length between the SPD and the electrical connection point.
- When installed as a Type 1 SPD, the SP240V50KA does not have to be installed in conjunction with a circuit breaker when installed in accordance with the product instructions and applicable electrical codes.
- When installed in a Type 2/load-side application, Bad Wolf recommends a 20 amp double-pole circuit breaker unless otherwise required by the authority having jurisdiction, local electrical code, or the specific installation conditions.
Status Indicator
After installation, restore power and verify that the green status LED is illuminated.
- Green ON: Protected / normal operation
- OFF: Replace unit
If the green status light does not illuminate after installation, disconnect power and verify the wiring and installation before placing the system into service.
Always refer to the SP240V50KA product label and installation instructions for the correct wiring configuration, connection requirements, and product-specific installation details. Installation must comply with applicable electrical codes and requirements of the authority having jurisdiction.
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 SP240V50KA mainly used for?
The SP240V50KA is a compact 50kA Type 1 surge protective device designed for whole-house surge protection on compatible 120/240V split-phase electrical systems. It is also well suited for dedicated equipment applications including HVAC systems, heat pumps, pool pumps, well pumps, irrigation pumps, motors, subpanels, garages, workshops, and similar electrical loads.
Can the SP240V50KA be used as a whole-house surge protector?
Yes. The SP240V50KA is designed for whole-house surge protection on compatible 120/240V split-phase electrical systems. Its compact size makes it a practical option for homeowners who want a 50kA Type 1 SPD at the main electrical system while still retaining the flexibility to use the same model for dedicated equipment applications.
Is the SP240V50KA a Type 1 surge protective device?
Yes. The SP240V50KA is a Type 1 surge protective device. A Type 1 SPD can be installed in compatible service-entrance applications and can also be installed in appropriate load-side locations when installed in accordance with the product instructions, listing requirements, and applicable electrical codes.
Can a Type 1 SP240V50KA be installed where a Type 2 SPD would normally be used?
Yes, in many compatible load-side applications. A Type 1 SPD is not limited to service-entrance installations. The SP240V50KA can also be installed in an appropriate Type 2/load-side location when permitted by the product instructions and electrical system configuration.
Does the SP240V50KA need a neutral connection for whole-house protection?
No. The SP240V50KA is a 3-wire L1/L2/Ground surge protective device and does not require a neutral connection. Its protection modes are L1-L2, L1-G, and L2-G for compatible 120/240V split-phase electrical systems.
Does being a 3-wire SPD prevent it from being used for whole-house protection?
No. The SP240V50KA's 3-wire configuration does not prevent it from being used as a whole-house surge protector. The important considerations are that the electrical system matches the product ratings and that the SPD is installed according to the product instructions and applicable electrical codes.
What does the 50kA rating mean?
The 50kA rating refers to the surge current capacity of the device. It describes how much surge current the SPD is designed to handle and should not be confused with Voltage Protection Rating (VPR), which is a separate performance specification.
Is 50kA enough for whole-house surge protection?
A 50kA Type 1 SPD can be a legitimate whole-house surge protection option when its voltage, installation requirements, and electrical ratings match the application. Homeowners who want additional surge-current handling capacity can also consider higher-capacity Bad Wolf whole-house models.
What if I want more surge-current capacity?
Bad Wolf offers higher-capacity whole-house surge protectors including 65kA, 100kA, 200kA, 225kA, 260kA HSD, 400kA, and 520kA PHSD product families. A higher kA rating provides additional surge-current handling capacity, but installation location, VPR, MCOV, mounting style, and electrical system compatibility should also be considered.
Can the SP240V50KA be installed on an HVAC condenser or heat pump?
Yes. The SP240V50KA is well suited for compatible HVAC condenser units, heat pump outdoor units, mini-split systems, and similar equipment when the electrical circuit matches the product ratings and the SPD is properly installed.
Can the SP240V50KA be used on a pool pump?
Yes. The SP240V50KA may be used to help protect compatible pool pump circuits, pool equipment panels, and similar motor-driven equipment when the voltage and wiring configuration match the product specifications.
Can the SP240V50KA be used on a well pump or irrigation pump?
Yes. The SP240V50KA may be used on compatible well pump, irrigation pump, septic pump, and similar pump circuits where the electrical system matches the product ratings and installation requirements.
Can the SP240V50KA be installed at a subpanel?
Yes. The SP240V50KA can be installed at a compatible subpanel or other appropriate load-side location. Adding surge protection at selected subpanels can also be part of a layered surge-protection strategy.
How is the SP240V50KA connected?
The SP240V50KA is a hardwired surge protector supplied with pre-wired leads and a 1/2-inch liquid-tight connection. This mounting style allows the SPD to be installed adjacent to a compatible electrical panel or enclosure.
What does the status light mean?
The SP240V50KA uses a single green status LED. Green ON indicates that the surge protector is operating normally and protection is present. If the green LED is OFF, the unit should be replaced.
Can the SP240V50KA be installed outdoors?
Yes. The SP240V50KA uses a NEMA 4X / IP67 enclosure suitable for indoor or outdoor installations when installed according to the product instructions and applicable electrical codes.
Who should install the SP240V50KA?
The SP240V50KA connects directly to the electrical system and should be installed by a qualified person familiar with the equipment and circuit being protected. This may include a qualified electrician, licensed electrical contractor, HVAC contractor, pool contractor, pump contractor, or other qualified installer as permitted by local requirements.
Does the SP240V50KA need to be installed with a circuit breaker?
When the SP240V50KA is installed as a Type 1 SPD, it does not have to be installed in conjunction with a circuit breaker when the installation is completed in accordance with the product instructions and applicable electrical codes.
If the SP240V50KA is installed in a Type 2/load-side application, 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.
Does the SP240V50KA include a warranty?
Yes. 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 applicable warranty terms.
Specifications
SP240V50KA Specifications
| Model Number | SP240V50KA |
|---|---|
| Product Type | 3-wire Type 1 whole-house and equipment surge protective device |
| SPD Type | Type 1 — also suitable for compatible Type 2 load-side locations |
| Electrical System | 120/240V split-phase |
| Frequency | 50/60 Hz |
| Current Type | AC |
| Surge Current Capacity | 50kA per phase |
| Nominal Discharge Current (In) | 10kA |
| Short-Circuit Current Rating (SCCR) | 100kA RMS symmetrical |
| Maximum Continuous Operating Voltage (MCOV) | 300 VAC L-L / 150 VAC L-G |
| Voltage Protection Rating (VPR) | 1000V L-L / 500V L-G |
| Protection Modes | L1-L2, L1-G, L2-G |
| Response Time | As fast as 500 picoseconds |
| Connection Type | Hardwired with 1/2-inch liquid-tight connector and pre-wired leads |
| Wiring | 36 inches of 12 AWG leads |
| Recommended Applications | Whole-house surge protection, main electrical panels, compatible subpanels, HVAC equipment, pumps, motors, garages, workshops, and dedicated 120/240V electrical loads |
| Enclosure Rating | NEMA 4X / IP67 |
| Housing Flammability Rating | V-0 |
| Installation Environment | Indoor or outdoor |
| Status Indicator | Single green LED |
| LED Status | Green ON = Protected / normal operation; OFF = Replace unit |
| Product Dimensions | 2.5 x 2.5 x 2.25 in |
| Product Weight | 12 oz |
| Listings | Intertek ETL Listed to UL 1449 5th Edition; certified to CSA C22.2 No. 269.1 and 269.2 |
| EMC Compliance | FCC 47 CFR Part 15 and ICES-003 |
| Warranty | 5 years |