PMA-KB-03-Q2S Panel-Mount Fuse Holder: Tool-Free Access for 6.3 x 32mm Fuses
When a circuit needs a replaceable cartridge fuse that stays accessible from the outside of an enclosure, a panel-mounted fuse holder is often the cleanest solution. At OptiFuse, we offer more than 50 different styles, shapes, and sizes to choose from. Discover our guide on How to Choose a Panel Mounted Fuse Holder.
The OptiFuse PMA-KB-03-Q2S is a panel-mount fuse holder designed for ¼” x 1 ¼” / 6.3 x 32mm glass and ceramic fuses like the FSA or TSA. With a 10A, 250VAC electrical rating, bayonet-style cap, finger-release knob, and 0.250” quick-connect terminals, it is a practical choice for electronic equipment, appliances, lighting circuits, and other panel-mounted protection points.
Tool-Free Bayonet Access
The PMA-KB-03-Q2S uses a knob-style bayonet cap that opens with a simple ¼ turn.
That makes fuse replacement faster and easier compared to holders that require a screwdriver or other tool to access the fuse. For equipment where the fuse needs to be serviceable from the outside of the panel, this style of holder can help keep maintenance simple while still keeping the fuse properly enclosed during normal operation.
Key Specs Engineers Care About
- Fuse size: ¼” x 1¼” / 6.3 x 32mm
- Electrical rating: 10A, 250VAC
- Cap style: Knob / bayonet
- Terminal style: 0.250” quick-connect tabs
- Mounting style: Panel mount, secured by nut
Why Terminal Style Matters
The PMA-KB-03-Q2S comes with 0.250” quick-connect terminals, which make it easier to integrate into wiring harnesses or panel assemblies.
Quick-connect tabs are useful when the wiring needs to be serviceable, repeatable, and easy to assemble in production. They can also simplify replacement compared to solder-only terminations, especially in equipment where technicians may need to disconnect or service the holder later.
A Compact Holder for Serviceable Fuse Protection
The PMA-KB-03-Q2S combines a compact panel-mount body with easy fuse access and simple wiring connections. For designers working with 6.3 x 32mm fuses, it provides a clean way to bring fuse protection to the outside of the enclosure while keeping the final assembly serviceable.
For complete circuit protection context, see our Fuse Selection Guide. For application support or fuse selection help, contact OptiFuse at [email protected].
Sebastian Castañeda is a circuit protection specialist and technical writer with application-focused experience in technical support and custom protection design. He contributes practical, application-driven insights to the OptiFuse Blog.