
Indoor Electric Heater: 400V 2500W Halogen Tube with R7s Base
We built this indoor heater for engineers who need serious heat in a seriously tight space. Think of it as a compact powerhouse—built for those tight enclosures where you can’t afford to waste an inch. Inside is a 300mm halogen tube, running at 2500W and 400V. It’s all about packing a ton of heat into a small footprint. No bulk. Just pure, focused warmth.
Power, Voltage, and Size—Made Simple
Running 2500W at 400V means you pull less current than you would with lower voltage options. That translates to simpler wiring, less voltage drop, and a cleaner install inside your control panel. And the 300mm length? It concentrates the heat right where you need it. No guesswork. No oversizing the whole setup. It heats up fast. And once it’s hot, it holds steady—even when the workload kicks up.
What It’s Built From
The halogen element sits sealed inside a quartz envelope. It takes high heat in stride and doesn’t flinch when temperatures shift suddenly. A specialized coating helps keep the output consistent and protects the filament from hot spots. Then there’s the R7s base. It’s direct, solid, and straightforward. Wire it up, set your spacing, and it stays put. No adapter plate. No fuss.
Where It Shines
Use it for indoor spot heating, inside machine enclosures, or for pre-heating a process—whenever space is at a premium. The combo of 400V, 2500W, and a short tube gives you high heat density without taking up room. Just keep one thing in mind: with this much power packed into a small space, you need proper airflow and heat management. Plan your enclosure cooling accordingly.