Choosing the NBX‑970 in the central PDB family
The NBX central distribution family is laid out as a circuit-count ladder, and the NBX‑970 is the 42-circuit rung. Pick by where your harness lands:
- Circuit count. If the harness fits inside 32 circuits, the NBX‑958 (32-way) is the smaller, lower-capacity box; if it runs into the high-40s, step up to the NBX‑953 (47-way), and for the densest body harnesses the NBX‑972 (65-circuit), a vented IP4X dry-zone high-density platform. Count the protected branches and land on the published rung above that count; because the ladder is unevenly spaced, the fuse box buyer guide covers how far past a rung you can afford to land before paying for positions the harness never populates.
- vs the general-purpose NBX‑957. The NBX‑957 is the workhorse body-central PDB quoted around a 36-fuse / 25-relay reference build; the numbered boxes (958 / 970 / 953 / 972) are the same body-central concept pinned to a specific circuit-count tier. Choose the NBX‑970 when the program has settled on roughly 42 circuits and wants that size fixed; choose the NBX‑957 when you want the general platform configured to the harness.
- Sealing and body-control logic. IP4X does not declare water ingress. A sprayed or outdoor position uses the IP65 NBX‑971. On-board CAN body-control logic is the NBX‑952.
For the upstream decision — whether the program needs a central PDB at all, versus separate fuse, relay and junction boxes — see the power distribution buyer guide and the relay box vs fuse box vs junction box comparison.
Mechanical layout
Mating connectors
The standard NBX-970 build uses 11 harness-side connectors. Programme-specific terminal P/N, wire-side seal and harness colour code are confirmed against the customer harness drawing at quotation.
| ID | Connector P/N |
|---|---|
| A | 080202060 |
| B | 040102060 |
| C | 010302094 |
| D | 1203023/69 |
| E | 1401023/69 |
| F | 1202023/69 |
| G | 1201023/69 |
| H | 060202060 |
| J | 0801023/69 |
| K | 010502092 |
| L | 010402091 |
Fuse & relay configuration
Standard build, customised on a programme basis:
| # | Component | Spec | Qty |
|---|---|---|---|
| 1 | Relay | ISO relay | 14 |
| 2 | Fuse-removal tool | — | 1 |
| 3 | Fuse | Mini blade fuse | 40 |
| 4 | Fuse (spare) | Mini blade fuse | 8 |
| 5 | Function customisation | Per circuit-diagram changes | — |
Built-in load functions
The standard build serves these circuits:
- A. High & low-beam control
- B. Position / side-lamp control
- C. Fog-lamp control
- D. Flasher control
- E. Wiper control
- F. Brake control
- G. Horn control
- H. Air-conditioning (HVAC) control
- I. Rear-lamp control
- J. Cooling-fan control
- K. Flasher control
- L. Tail-lamp control
Manufacturing & testing
Manufactured under IATF 16949. Validation in our in-house environmental lab with EMC pre-compliance equipment.
Related models & how to ask
Sister models in the NBX central PDB family: NBX‑958 (32-way), NBX‑953 (47-way), NBX‑972 (65-circuit) and the general-purpose NBX‑957 body central PDB. For sealed IP65 programs, see NBX‑971. Drawings welcome via the contact page.
