Overview
The NBX‑955 is the entry point of the NBX fuse-box family. Twelve ATO/ATC blade-fuse circuits, a YAZAKI 7283-series sealed automotive connector pair, a removable cover for field service and a compact mechanical envelope. It is the natural choice for cabin or auxiliary fusing on light-truck, service-vehicle and small-machinery harnesses.
Engineering details
Electrically the NBX‑955 supports 12 V and 24 V harness voltages with a −40 to +85 °C working range. The fuse plan is configurable on the same blade-fuse base — the program quoting describes the rated current per circuit and the connector pin-out.
- 12 circuits — sized for cabin or auxiliary fusing
- ATO/ATC blade fuses with serviceable, removable cover
- YAZAKI 7283-series sealed automotive connector with matching wire-side seal
- 12 V / 24 V harness voltages out-of-the-box
Mechanical layout
Mating-housing reference (YAZAKI)
Both housings are YAZAKI parts; each accepts a small family of compatible terminals across Europe / U.S.A / Japan wire-gauge ranges. Programme-specific terminal P/N is confirmed against the customer harness drawing at quotation.
| Housing | Housing P/N | Terminal P/N | Europe (mm²) | U.S.A (AWG) | Japan (mm²) |
|---|---|---|---|---|---|
| A | 72883-5567-40 | 7116-4110-02 | 0.35–0.50 | 22–20 | 0.30–0.50 |
| 7116-4111-02 | 0.75–1.00 | 18–16 | 0.85–1.25 | ||
| 7116-4112-02 | 1.50–2.50 | 14 | 2.00 | ||
| B | 7283-5590-40 | 7116-4121-02 | 1.50–2.50 | 14 | 2.00 |
| 7116-4122-02 | 4.00 | 12 | 3.00 |
Fuse configuration
Standard build — 12 ATO/ATC blade fuses arranged across two main supply rails. Compatible with Bussmann self-resetting fuses where the application calls for it. Per-slot fuse current and rail feed are specified per program and confirmed against the customer harness drawing at quotation.
| Rail | Reference main feed | Reference fuse mix |
|---|---|---|
| B1: ON | 30 A | F1–F6 — typical mix 5 A – 15 A for body and accessory loads |
| B2: ACC | 40 A | F7–F12 — typical mix 5 A – 15 A for body and accessory loads |
Choosing the NBX‑955: where the entry fuse box fits
The NBX‑955 is deliberately the simplest box in the family — twelve fuses, no relays, no switching logic. That is the point: it protects circuits and nothing else, so it stays small and quick to install. Three questions decide whether it is the right box or whether to step sideways:
- More than 12 protected circuits? If the cab harness runs past twelve fused loads, stay in the same blade-fuse format and move up to the NBX‑981 (15-way) or NBX‑2301 (17-way) — same serviceable cover and install logic, just more positions. The fuse box buyer guide covers counting circuits with headroom.
- Need to switch loads, not just protect them? The NBX‑955 has no relay sockets. Where a few loads need relay switching, add an NBX‑2404 relay box alongside it; where cabin space is tight, the NBX‑950 compact PDB puts fuses and relays in one housing instead of two boxes. The relay vs fuse vs junction guide explains the protect-versus-switch split.
- Whole-vehicle distribution? The NBX‑955 is a cabin / auxiliary panel at IP54 — not a chassis or main-feed box. For body-central distribution across the full vehicle, step up to the NBX‑957; for chassis-mount or outdoor placement, the sealed boxes in the Power Distribution lineup carry IP65 / IP67 ratings the NBX‑955 does not.
Manufacturing & testing
Manufactured under IATF 16949 with PPAP support for OEM programs. Validation in our in-house lab.
Related models & how to ask
For an RFQ, share the circuit count, the per-circuit fuse rating and the connector pin-out from your harness drawing — that is what we quote against. For more fused circuits in the same blade-fuse, serviceable-cover format, the NBX‑981 and NBX‑2301 are the direct step-ups; if the program needs switching as well, the NBX‑2404 relay box or the combined NBX‑950 compact PDB are the alternatives. For the complete range, see the Power Distribution family.
