Figure 1: Outline - Plug Type SPS100 and Socket.

Features

 

·        Ensures safe operation during synchronising or voltage selection procedures.

·        Provides 12 non-interchangeable socket sets.

·        Separate versions for four or six core cables.

·        Arrangements for linking non-adjacent plug pins.

 

Application

 

The synchronising plug and socket is used as an interlock system which ensures safe operation during procedures such as synchronising and voltage selection.  A six contact system with a key and keyway is used.  The combination, together with two alternative socket bezel fixing positions, provides a series of 12 non-interchangeable socket sets.  These accept plugs type SPS100 which provide 34 different arrangements of plug connections for linking adjacent plug pins.  In addition, a series of 6 non-interchangeable socket sets is available which accept cable entry plugs type SPS104 and SPS106.

 

Sockets

 

Suitable for mounting on a 5mm thick sheet steel panel, or on panels above 5mm thick using a mounting adapter, each socket comprises an insulated moulding which accommodates six contact assemblies with silver plated phosphor bronze leaf contacts.  Each contact has a 2BA nickel plated brass terminal stud at the rear.  A bezel, which accommodates the interlock keyway, has four inserts to provide alternative interlocking positions.  A cover is fitted over the terminals.

 

Plugs type SPS100

 

An assembly of two insulated mouldings, and a number of silver plated phosphor bronze contact pairs, together with dummy pins when required, provide a maximum of six protruding pins.  The front moulded portion provides accommodation for contacts and pins plus a part of the interlock system.  The rear moulded portion contains an interlock key and holds the contacts and pins in position in the front moulding.

 

Cable entry plugs - Types SPS104 & 106

 

Two versions with entry for four or six flexible cables respectively, are available.  Each plug has six permanent contact pins and is for use with a socket to a particular interlock pattern as shown in Figure 3.  This combination provides a non-interchangeable trailing lead connection for purposes such as synchronising trolleys.

 

Technical information

 

Voltage rating:  660V            Current rating:  5A continuously, 300A for 1 sec.

 

Plug and socket engraving

 

Arrangement of the engraving positions on the plug top and socket bezel are shown in Figures 5 and 6, together with the number of digits which can be accommodated.

 

Return to home page.                                         Go to page 3/4.