A general view of a typical 6ra 4 terminal 4 spade type four terminals but five spades. Keep cable runs as short as possible particularly main charging leads.

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Lucas 6ra relay wiring diagram. Lucas type srb146 relay. Originals are commonly marked 6ra. Wiper wiring and self. Lucas 6ra type srb111 relay. However there is one place that ive found that carries the whole gamut. Lucas flasher units guide suggested wiring combinations 14 030 87 86 85 87a 30 14 030 relay 14 030.
A few carry reproduction wiring harnesses. Early brake test and fog light switches and indicators. Pin c1 is a double male. The difference compared to the earlier cars is the starter solenoid relay has double contacts to enable it to provide power to the starter solenoid as well as bypassing the ballast resistor while the starter is in operation. Many of the usual suspects carry lucas bullet connectors. A relay is an electrical switch which uses low wattage current to open another switch.
Test button just checks the bulb is working. Ir switch with guard. Pined with 14 male spade terminals. Ensure insulation sleeves are. A relay is an electrical switch which uses low wattage current to open another switch. Lucas relays normally open.
So john according to your diagrams the 12v input feed my brown wire from the starter solenoid should be connected to c2 and the out feed to the od solenoid should come from one of the two c2 terminals leaving one redundant. Relay no1 mk3 fv706711. The double spade on terminal c1 offers a convenient branching point for a 12v supply wire to another circuit. British wiring inc 20449 ithaca olympia fields il 60461. Ps circuit diagrams of the lucas 6ra relays are readily available online. Originals are commonly marked 6ra this being the generic lucas number for metal cased relays and not the exact part number.
It is this second switch that carries and switches the high wattage current. To the right are diagrams detailing the external terminals and internal wiring for the four 6ra relays used in the s2. C using the cable sizes specified connect the 33ra relay as shown in the diagram. It is this second switch that carries and switches the high wattage current. But very few carry the properly color coded wire and most of those only carry a small selection of colors and sizes. This is a general purpose relay in a metal case with two fixing holes.
Lower indicator has the legend rear guard upper indicator brake washwipe switch. Later circa 1983 set up. Cylindrical lucas relays used on later mgbs designated 26ra srb402. Right is aux relay. Lucas relay wiring diagram lucas relay wiring diagram lucas starter motor wiring diagram key switch rear large restoration overdrive 6ra 31199 relay modern alternative commer van fan wiring diagram f lucas magdyno or sep dynamo du142 du42 wiring. 6ra 4 pin relay srb111 normally open.