Swift Kompany 7421 160 Amp 12V Sealed Relay with MX-150 Plug Harness

The Swift Kompany 7421 is a 160 amp, 12V DC heavy-duty relay (also called a battery relay, battery isolator relay or charge management relay). It replaces a manual battery switch with an electrical relay placed in line between a battery and its loads. This cuts battery cable run lengths and reduces voltage drop.

Key Features:

• 160 A continuous current rating, with a 240 A intermittent rating
• 8-18V DC operating voltage range, with about 350 mA on-state coil draw at 12V
• Sealed MX-150 plug and harness with 2 ft control wires, which reduces installation time
• Sealed construction with high-temperature materials, so it can be mounted almost anywhere on the vehicle
• Integral diode suppression reduces voltage spikes on control lines during switching
• Stainless steel self-locking hardware
• Accepts cable up to 2/0 AWG, with a terminal stud torque of 80 in-lb (9.1 N-m)
• Single or dual split output options for different electrical system requirements

Applications: Connect the control wire to an engine ignition line for simple battery charge management between two batteries. It can also disconnect auxiliary loads. The relay can be paired with TH Series automatic charging relays or time delay relays. In that setup it adds an isolated, switched output or extends current-carrying capacity. It suits marine, RV, commercial vehicle and other 12V DC systems.