Reactor Lever is the meltdown-proof emergency stop of a reactor room in the Ala Industrial mod for Minecraft 26.2 Java Edition. Reactor Lever flicks by hand like a vanilla lever, mounts on a wall, floor or ceiling, and holds a strength-15 redstone signal until flicked back — exactly the held signal the Reactor Controller and the Thermal Centrifuge read, while a vanilla lever melts in a reactor accident. Reactor Lever is crafted shapeless from one Shielding Plate and one vanilla lever, giving two levers per craft. Ala Industrial runs on both the Fabric and NeoForge loaders.

Reactor Lever keeps real vanilla lever behavior in a shielding-alloy body: the red spark, the latch and the strength-15 signal are vanilla's, the place and break sounds are metal, and the meltproof tag means a meltdown that eats the room's contents leaves Reactor Lever standing. Hardness 0.5 and blast resistance 0.5 sit far below the shell's 5.0 and 30.0 on purpose: an explosion that takes the wall takes Reactor Lever too, and a pushing piston destroys the block. Reactor Lever hangs on the face of a block and spends no shell cell, so the sealed wall behind it still stops radiation — but placing the lever instead of a Reactor Casing opens a breach the room scanner reports. Any tool or a bare hand drops Reactor Lever — a pickaxe is just faster — a stack holds 64, and the block draws no EU at all: an emergency stop must work when the room has already lost power.