Contact Blocks & Light Blocks

Contact Blocks


A contact block is an electrical circuit connector that is used to turn on (make) or turn off (break) an electrical circuit. Contact blocks are commonly found connected to switches, relays and circuit breakers, once these devices are active the contact block allows current to flow and complete a circuit.

Types of Contact Block


Contact blocks are usually designed as an accessory to fit a specific device, therefore matching the correct contact block and device are essential. The contact blocks are available with a wide range of contact configurations that allow the main device to change a circuit in many different ways. Typical contact configurations available are:
• 1NO (One normally open contact)
• 1NC (One normally closed contact)
• 1NO/1NC (One normally open and one normally closed)
• 2NO (Two normally open contact)
• 2NC (Two normally closed contact)
• 2NO/2NC (Two normally open and two normally closed)

Light Blocks


Push button light blocks are an addon block that mount to the rear of a push button switch alongside the contact blocks to act as an indicator light. The light blocks are turned on when the push button is pressed and illuminate through the button head.

Types of Light Block


Light blocks are available in two types:
• LED - These light blocks feature a fixed bright LED that is designed to last the lifetime of the push button. LED light blocks are available in a variety of colours to match the button colour.
• Incandescent - These light blocks feature a changeable incandescent bulb. The bulbs produce a white light that shines through the button head to produce the required colour.

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Description Price Block Type Contact Configuration Series Illumination Colour Voltage Rating Illumination Type Terminal Type Body/Fixing Collar Included Current Rating LED Included For Use With Priced to Clear Accessory Type
RS Stock No. 188-1180
BrandRS PRO
£4.59
Each
Units
Light Block - - - 24V ac/dc LED - - - Yes - - -
RS Stock No. 188-1171
BrandRS PRO
£1.91
Each
Units
Contact Block NC - - - - - - - - - - -
RS Stock No. 188-1186
BrandRS PRO
£4.59
Each
Units
Light Block - - - 110V ac LED - - - Yes - - -
RS Stock No. 188-1196
BrandRS PRO
£4.82
Each
Units
Light Block - - - 240V ac LED - - - Yes - - -
RS Stock No. 188-1179
BrandRS PRO
£4.82
Each
Units
Light Block - - - 24V ac/dc LED - - - Yes - - -
RS Stock No. 188-1170
BrandRS PRO
£1.91
Each
Units
Contact Block SPNO - - - - - - - - - - -
RS Stock No. 188-1178
BrandRS PRO
£4.59
Each
Units
Light Block - - - 12V ac/dc LED - - - Yes - - -
RS Stock No. 188-1169
BrandRS PRO
£1.75
Each
Units
Contact Block NC - - - - Screw - - - - - -
RS Stock No. 331-0473
Mfr. Part No.ZBE101
£4.00
Each
Units
Contact Block 1NO Harmony XB - - - Screw No 10A No - - -
RS Stock No. 331-0489
Mfr. Part No.ZBE102
£4.00
Each
Units
Contact Block 1NC Harmony XB - 600V ac - Screw No 10A No - - -
RS Stock No. 331-0158
Mfr. Part No.ZB4BZ101
£5.90
Each
Units
Contact Block 1NO Harmony XB4 - 600V - Screw Yes 10A - - - -
RS Stock No. 331-0574
Mfr. Part No.ZENL1111
£6.36
Each
Units
Contact Block 1NO Harmony XAL - - - Screw No 10A - - - -
RS Stock No. 331-0580
Mfr. Part No.ZENL1121
£6.36
Each
Units
Contact Block 1NC Harmony XAL - - - Screw No - - - - -
RS Stock No. 331-0164
Mfr. Part No.ZB4BZ102
£5.90
Each
Units
Contact Block 1NC Harmony XB4 - 600V - Screw Yes - - - - -
RS Stock No. 815-1676
Mfr. Part No.ZB2BE101
£5.33
Each
Units
Contact Block 1NO XB2 - 600V - Screw - 10A - - - -
RS Stock No. 610-2944
Mfr. Part No.ZBVM3
£15.24
Each
Units
Light Block - Harmony XB - 230V LED Screw No - Yes - - -
RS Stock No. 610-2821
Mfr. Part No.ZBVB3
£6.89
Each
Units
Light Block - Harmony XB - 24V LED Screw No - - - - -
RS Stock No. 815-1670
Mfr. Part No.ZB2BE102
£5.15
Each
Units
Contact Block 1NC XB2 - 600V - Screw - 10A - - - -
RS Stock No. 610-2815
Mfr. Part No.ZBVB1
£6.95
Each
Units
Light Block - Harmony XB - 24V LED Screw No - - - - -
RS Stock No. 260-154
Mfr. Part No.33E01
BrandBACO
£16.68
1 Pack of 5
Pack(s)
Contact Block 1NC BACO - 600V - Screw No 10A - - - -