Swit KA-B30B B-mount to B-mount Hotswap Plate

Seamless Power for Professional Cine Workflows

The Swit KA-B30B is a high-performance B-mount to B-mount hot-swap plate designed to keep your camera running during battery changes. Featuring internal battery cells, this plate takes over power delivery the moment the main battery is removed, ensuring your ARRI ALEXA35 or other B-mount equipment never loses power on set.

Intelligent 120-Second Countdown Display

Never guess how much time you have left. The KA-B30B features an integrated LCD screen that triggers a 120-second countdown as soon as the battery is detached. This gives operators ample time to swap cells. Once a new battery is mounted, the internal cells recharge automatically, resetting the countdown for the next swap. Even after 500 cycles, the plate maintains at least 120 seconds of run time at a 200W high load.

High Load Capacity and Regulated Output

Equipped with a 32Wh internal battery, the KA-B30B supports a 200W constant high load. It accepts 22-33.6V B-mount batteries and provides a regulated 28V output when the main battery is removed. This ensures stable performance for power-hungry cine cameras and demanding accessories.

Versatile Power Interfaces

Expand your rig's capabilities with multiple output options:

• 1x 2-pin LEMO: Regulated 14V, 5A (70W)
• 2x D-tap: Regulated 14V, 5A (70W each)
• 1x USB-A: 5V/2A for mobile devices or small accessories
• 1x 8-pin DC Input: 22-33.6V for power station hot-swapping

Rugged Build and ARRI Compatibility

Constructed with an aluminum CNC unibody housing, the KA-B30B is built for the rigors of professional sets. It is specifically designed to match the ARRI ALEXA35 perfectly and is compatible with future ARRI B-mount cameras and lighting fixtures.