Overview
A single sealed enclosure carries the relays, fuses and CAN-driven control logic that traditionally lived across two or three boxes plus an inter-box harness.
Mating connectors
| ID | Harness end | Terminal |
|---|---|---|
| A | 35-way housing, 776164-1 | 77052-1 |
| B | 8-way housing, grey, C22808401 | 12129493 |
| C | 8-wire harness, blue, C22808201 | 12129493 |
| D | 23-way housing, 770680-1 | 770520-1 |
| E | 8-way housing, green, C22808301 | 12129493 |
| F | 8-way housing, black, C22808101 | 12129493 |
| G | 2-way housing, black, 32004 | — |
Controlled body-circuit functions
The standard build controls these circuits; the map can be changed against your wiring diagram.
- 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
How it differs from NBX-957 and NBX-954
The three boxes sit on the same Power Distribution shelf but solve different problems. Pick the one that matches the program's level of control logic:
| Model | Role | On-board logic | Sealing | Best for |
|---|---|---|---|---|
| NBX-957 | Passive body central PDB | Passive | IP5X | Programs where a separate BCM owns the logic |
| NBX-954 | Central distribution box | Passive | IP65 | Mid-density body wiring without CAN integration |
| NBX-952 | Centralized PDB + body control logic | CAN bus | IP65 | Programs that want one box covering both distribution and body-circuit logic |
For the architectural decision between a junction box, a fuse box and a relay-fuse-CAN combination box, see the junction vs fuse vs relay box guide.
Manufacturing & testing
Built under IATF 16949 with APQP project planning and a PPAP package available for OEM programs. End-of-line functional test on every unit (relay actuation, fuse-circuit continuity, CAN message echo) before packaging; environmental validation and EMC pre-compliance screening in our in-house lab when the program requires it.
Related models & how to ask
Closely related models in the central-PDB lineup are the NBX-957 body central PDB and NBX-954 central distribution box. For high-circuit-count programs without integrated control, see the NBX-972 65-circuit central PDB. For a chassis-mounted central box, see the NBX-971 (IP65). For the full lineup, see the Power Distribution family. To request drawings, sample units or a quote against your harness, please use the contact page.
