SP 4 K20 W02/001 old code/new code SP4K2003W02 operating key No 15 SP4K2003W02 SP2K20X11 AP1T51Z11 AP1T31Z11 SP1K98X11 old reference, new SM1K98X11;safety switch EP1G73Z050U EP1G73Z050U (5m UL cable) EP1G42Z040U EP1G42Z030U EP1G42Z050U PS1211/VO SA 103 SL SA 106/40 SL AP3T13Z11