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Up to 3 Heavy Fuses fit in one inventory slot.
Crates, barrels and NPCs that drop the Heavy Fuse, most likely first
| From | Chance | Amount |
|---|---|---|
 Underwater Lab Military Crate | 6% | 1 |
 Military Crate | 6% | 1 |
 Normal Crate | 3% | 1 |
Chance is for one container opened or one NPC killed. Amount is how many it holds when it holds any.
What the Heavy Fuse gives back in each recycler
| Recycler | Efficiency | You get | Scrap per stack |
|---|---|---|---|
| Red recycler | 75% | 30  Scrap | 90 |
| Green recycler (powered) | 60% | 24 Scrap | 72 |
| Green recycler | 50% | 20 Scrap | 60 |
| Yellow recycler | 40% | 16 Scrap | 48 |
The Heavy Fuse breaks down into Scrap.
A recycler takes them one at a time, so a full stack of 3 goes through in 3 cycles.
Figures are for one item in perfect condition. Each recycler’s name opens its full table at this item. Scrap keeps its decimals: the recycler pays whole pieces and carries the rest into its next payout. Scrap per stack is for one full stack of the item.
In Rust, Heavy Fuse is a crafting part in the Components category (item ID #-945548410, console shortname fuse.highgrade). In active play, it follows standard server rules for crafting part gear across procedural maps. Inventory storage stacks up to 3 units per slot, and uncollected ground drops despawn after 1 hour.
Lasts longer than a regular fuse and is compatible with and able to restore a Power Plant. Will have to be replaced after a period of time.
In Rust, Heavy Fuse has no player crafting recipe; acquisition relies on 3 world loot tables read from the Rust game files. Shredding a spare copy at a green recycler returns 20 scrap at fifty percent yield (vs forty percent at safe-zone yellow units). Equipped and stored units carry no durability wear bar.
The Heavy Fuse is one of the 25 crafting parts; Rust classifies it under the Components inventory category.
When comparing Heavy Fuse against related components in Rust, prioritize farming its highest-probability monument containers or recycling surplus components at an unpowered radtown green recycler (fifty percent base yield, versus forty percent at safe-zone yellow units) because this item cannot be crafted at a player workbench.
| Item | Category | Stack Limit | Craft / Source | Tech Tree / Research | Green Recycler Yield |
|---|---|---|---|---|---|
| Heavy Fuse | Components | 3 per slot | World loot / gather | No blueprint | Not recyclable |
| Electric Fuse | Components | 10 per slot | World loot / gather | No blueprint | Not recyclable |
| Advanced Blueprint Fragment | Components | 100 per slot | World loot / gather | No blueprint | Not recyclable |
| Metal Spring | Components | 20 per slot | Workbench Level 3 | 60 scrap (Table) | Not recyclable |
Compare Heavy Fuse with closely related crafting part sheets in the Rust item catalog:
To compare Heavy Fuse against every item in its inventory category, browse All 63 items in Components.
The Heavy Fuse drops from 3 container and NPC loot tables in Rust, led by Underwater Lab Military Crate (6% chance), Military Crate (6% chance), and Normal Crate (3% chance). Each listed probability reflects a single container opened or NPC killed, and found copies can be repaired or researched at base.
The Heavy Fuse recycles in Rust at an unpowered green recycler into 20 scrap. It sits in the Components catalog with item ID -945548410 alongside 62 related components, with F1 console command inventory.giveid -945548410 3 across 63 published Components entries (35 with crafting blueprints).
Dropped on the ground in Rust, the Heavy Fuse despawns after 1 hour by default. Picking it back up into a player inventory or storing it inside a base container immediately resets that ground despawn timer, which the server scales by item rarity tier.
The Heavy Fuse carries a maximum condition pool of 1,000 in Rust, but its durability cannot be restored once worn. Once it reaches 0 condition through active use, it must be replaced (item ID -945548410, shortname fuse.highgrade). It belongs to the Components category in Rust.
The Heavy Fuse stacks up to 3 units per slot in Rust, allowing a 24-slot main player inventory to carry 72 units and a 48-slot large wood box to hold 144 units. Within the Components category (63 items), it uses item ID -945548410 and despawns after 1 hour.
The Heavy Fuse has 32-bit signed item ID -945548410 and shortname fuse.highgrade in Rust. Server plugins, custom loot tables, Vending Machine listings, and automated Industrial Conveyor filter strings reference these two identifiers under the Components category (stack limit 3 units per slot).
Server administrators in Rust spawn the Heavy Fuse in the F1 developer console with inventory.give fuse.highgrade 3 or inventory.giveid -945548410 3 for 3 units. Both console spawn commands work only on dedicated or local worlds where your Steam account holds administrator or moderator privileges.