BS61008 as that is a recent Wylex model I believe.
Older models would be BS4293.
Thats the only numbers for that type of RCD - RCBO's etc would be a different matter.
Quote:> BS 4293 : 1983 (1993)
Specification for residual current operated
circuit-breakers. (Replaced by BS EN 61008-
1: 1995, BS EN 61008-2-1: 1995 and BS
IEC 61008-2-2: 1990). This Standard
remains current
> BS 7071 : 1992 (1998)
Specification for portable residual current
devices
> BS 7288 : 1990 (1998)
Specification for socket-outlets incorporating
residual current devices. (SRCDs)
> BS EN 61008-1 : 1995 (2001)
Residual current operated circuit-breakers
without integral overcurrent protection for
household and similar uses (RCCBs)
> BS EN 61009-1 : 2004
Residual current operated circuit-breakers
with integral overcurrent protection for
household and similar uses (RCBOs)