Whole House Surge Protector with Remote Display SP240V185KA


  • Visual Status Indicator Lights (Green = Protected)
  • 6 Modes of Protection (L1 – L2), (L1 – N), (L2 – N), (L1- G), (L2 – G), (N- G)
  • Clamping Voltage (L-L 300V) (L-N 150V) (N-G 50V)
  • Provides 185,000 Amps of surge current capacity per phase
  • Surge Protector Dimensions: 6″ X 2.75″ X 2.375″
  • Display Unit Dimensions: 4.5″ X 3.25″ X 1″
  • Overwatch circuitry allows surge reaction speeds in the picoseconds
SKU: SP240V185KA Category:

Whole House Surge Protector Type 2 SPD, 240V 185kA Split-Phase Device with Remote Display Unit.

Bad Wolf AC surge protection device SPD provides overvoltage protection for all connected devices and circuits for complete home protection.


Whole House SPDs are installed in the main breaker panel of your residence providing for surge protection for all circuits connected. A green LED indicator shows you that the surge protector is providing protection for all the connected circuits. The SPD is designed for normal Line to Line voltages of 240VAC and Line the Neutral voltages of 120VAC. The SPD is built to handle surge currents up to 185,000 Amps (185kA). Designed with a unique remote display unit that comes with 6 feet of cable or you can optionally purchase additional cables to a maximum of 25 feet. Built using Metal Oxide Varistor (MOV), Transient Voltage Suppression (TVS) Diodes and Gas Discharge Tube (GDT) technology. With the incorporated Overwatch protection circuitry the SPD is capable of reaction speeds in the trillionths of a second and able to survive thousands of repetitive surges. Industrial grade component components for lightning protection and other common electrical surges. Military grade High-Altitude Electromagnetic Pulse (HEMP) components designed for all phase EMP (Phase 1, 2, 3) surges as well as Coronal Mass Ejection (CME) and Solar Flare.

Bad Wolf is a leader in high power surge protectors and provides one of the largest selections of AC or DC devices. Bad Wolf is a Made in the USA company that is not only a contract manufacturing for the for private and federal agencies, but also willing to provide custom solutions for consumer applications.

Additional information

Weight 22 oz
Dimensions 6 × 2.75 × 2.375 in

Commercial, EV Charging Station, Farm, Generator, Home, Irrigation, Marine, Solar, Wind


MIL-STD, UL 1449

Connection Type


EM Rating

EMP (E1, E2 and E3 Phase), Solar Flare (CME)

Environment of Use


Form Factor

Surface Mount

Service Type

Split Phase

SPD Classification

Type 2

Surge Current Rating (A)


Type of Surge Protection


Voltage (Vac)


What does the light on the surge protector mean?

Answer: A green light means the surge protector is on and working correctly. there is one light on the main device that you install in your electrical panel and another light on the remote display.

Do I have to use the remote display?

Answer: No, the surge protector will function just fine without the display being connected.

Can I mount this outside?

Answer: No, this device is rated for indoor use only

The instructions say I need to use a circuit breaker with this, what one do I need?

Answer: You will need to connect the surge protector to a 20 amp double pole circuit breaker.

How long of cable is included with the surge protector

Answer: If you mean the wires that connect to the circuit breaker they are 36 inches. If you mean the remote display we include a 6 foot cables but you may purchase additional cables for a total length of 25 feet if needed.

SP240V185KA Instructions

SP240V185KA Instructions