Swift Kompany 8520-1350 XD Flex L Dual VSR Relay Switch with Knobs

The Swift Kompany 8520-1350 XD Flex L Dual VSR switch is a bi-stable voltage sensing relay (VSR) and battery switch with manual override knobs. It is built for lithium battery systems. It can work as an automatic charging relay (ACR), a remote battery disconnect relay, or a voltage sensing relay for dual-battery marine, RV, and off-road electrical systems.

Key Features:

• Lithium-ready: The Flex L logic suits lithium-ion, lithium polymer, and LiFePO4 systems, which need higher charge on/off voltage settings than lead-acid batteries.
• Dual relay design: Two relay positions share one compact housing.
• 500 amp continuous rating per relay, with 1,500 amp max cranking current.
• Wide voltage range: 8 to 36 V DC, so it works on both 12 V and 24 V systems.
• Configurable by dip switch: Set each relay as a battery disconnect, a voltage sensing relay, or other functions.
• 3-position manual override knobs: Force each relay open or closed. You can also leave a knob in either position to lock the relay on or off for servicing.
• LED status indicator: A front-facing LED shows device status, and a remote LED output can repeat it.
• Low standby draw: About 1.3 mA in the off state, with a 1,000,000-cycle mechanical switching life.
• Rugged construction: Sealed to IP67/IP6K9K, with an integrated vent that regulates internal pressure and helps keep moisture out. Stainless steel cable lug studs and large mounting holes accept 1/4-20 or M6 hardware.

The bi-stable solenoid design keeps the footprint small and the weight low compared with traditional relay layouts. It can be mounted almost anywhere in harsh environments.