For completeness this is the wiring diagram for the earlier 240 fuel pump relay
1986 200 Fuel Pump Relay 01.jpg
The bottom box in the relay is a re-triggerable monostable, which means that it energises the relay coil (top box) as long as there is a train of pulses from the coil, i.e. the engine is turning over.
You can see the fuse arrangement is pretty much the same as above so I don't see any reason why a blade-type holder couldn't be fitted.