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In addition to the main fuse wire in the engine compartment, there is a main fuse box under the dashboard.
- Original equipment: NILES brand No. FB 206N
- Fits B110 and 620
USA 1972 Owners manual (see pages 35 for fuse information):
If a fuse needs to be replaced, refer to the specifications listed on the fuse box cover.
Fuses
B110 uses the standard cylindrical fuses used by all cars until around 1980. The numbers are:
Ignition Switch Circuit (only HOT when key is in IGN position)
- 15 AMP Head Lamp
- 15 AMP Wiper, Washer, Heater
- 10 AMP Meter, Reverse Lights, Alternator Regulator
Battery/Alternator Circuit (always HOT)
- 10 AMP Park lights, Tail lights
- 15 AMP Radio, Cigarette lighter, Room lamp
- 15 AMP Horn, Stop lights, Hazard lights
There are also two empty holes in the fuse box to hold two spare fuses.
Contents |
Wiring
Fusible Link
The Fusible Link ("Main Fuse") connects to the POS battery terminal about six inches from the battery. The fusible link is a special length of wiring that will melt if its rating is exceeded and is there to stop the electrics if the car is drawing too much power, like an open short circuit. It has a special non-flammable coating, and is typically 4 wire sizes smaller than the main feed wire.
WARNING: Do not replace fusible link with a solid wire, or a regular fuse -- you risk burning up the entire wiring system ... see Wiring#Main Wiring
The white wire here has been cut from the Postive battery cable:
Both green wires are the same. Top: New, Bottom: old and faded
- 25442-H2500
- replaces 25442-H1100 LINK-FUSIBLE,TYPE C replaced
- part number 25442-H1100 originally for B110
- part number 25442-H2500 for B210
- Spec: FUL 0.5mm2 [0.5 square mm]
Aftermarket
Use a "FUL 0.5mm2" fuse-link.
- 20 gauge: 0.5 square mm
- 18 gauge: 0.8 square mm *TOO BIG FOR DATSUN 1200*
- 16 gauge: 1.0 square mm *TOO BIG FOR DATSUN 1200*
- 14 gauge: 2.0 square mm *TOO BIG FOR DATSUN 1200*
Universal Fusible Link - 20 gauge
- Amazon.com Pico 5557PT 8" Universal 20 Gauge Fusible Link $1.95 USD
- O'Reilly Auto: Dorman Conduct-Tite! 85626
You can use Ford, GM or Chrysler style too:
Discussion: will this Fusible link suit ?
MAD Fusible Link information - why Fusible Link is better than a Fuse
Aftermaket Fuse Box
Part Numbers
B110: 6-FUSE BOX 25410-H1000 BLOCK-FUSE 25410-H1100
Datsun 620 USA FUSE BOX
25410-H1000 -0746
25410-B8000 0974-0476
25410-B8001 0576-0776
25410-B8002 0876-0877
25410-B8060 0878-
B210 * 25410-H6200 ASSY-BLOCK FUSE -0974 ** 25411-H6200 COVER-FUSE BLOCK -0974 * 25410-H7200 ASSY-BLOCK FUSE (YAZAKI) 1074- ** 25411-H7200 COVER-FUSE BLOCK (YAZAKI) 1074- * 25410-H7205 ASSY-BLOCK FUSE (SUMITOMO) 0476- ** 25411-H7205 COVER-FUSE BLOCK (SUMITOMO) 0476- B310: 8-FUSE BOX 08941-12000 20A FUSE * 25410-W5801 USA BLOCK ASSY-FUSE ** 25411-W5801 USA COVER-FUSE BLOCK * 25410-H9400 JDM BLOCK ASSY-FUSE ** 24511-H9400 JDM COVER-FUSE BLOCK * 25410-W5001 JDM BLOCK ASSY-FUSE YAZAKI ** 24511-W5001 JDM COVER-FUSE BLOCK YAZAKI
B120: 6-FUSE BOX * 25410-G1600 BLOCK ASSY-FUSE -7709 * 25410-G1601 BLOCK ASSY-FUSE 7710-7801 * 25410-G1660 BLOCK ASSY-FUSE 7802-8109 * 24310-G1900 BLOCK ASSY-FUSE 8110-8910
B120: 10-FUSE BOX w/Rectangular fuses * 24310-95W00 BLOCK ASSY-FUSE 8910- ** 24311-95W00 COVER-FUSE BLOCK 8910-
NOTE: Eliminates the plug-in connectors on the back of the fuse box, which was a problem spot in older 1200s.
History
B10: 4 fuses
B110: 6 fuses
B210: 8 fuses
B310: 8 fuses
B11: Rectangular 12 fuses
B120 1989: Rectangular 10 fuses
16 fuse
