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 Series Block Type Contact Configuration Illumination Colour Voltage Rating Illumination Type Terminal Type Body/Fixing Collar Included Current Rating LED Included CAD Drawing
RS Stock No. 331-0473
Mfr. Part No.ZBE101
kr 33,39
Each
Units
Harmony XB Contact Block 1NO - - - Screw No 10 A → 600 V ac No -
RS Stock No. 331-0489
Mfr. Part No.ZBE102
kr 33,39
Each
Units
Harmony XB Contact Block 1NC - 600 V ac - Screw No 10 A No -
RS Stock No. 331-0574
Mfr. Part No.ZENL1111
kr 59,70
Each
Units
Harmony XAL Contact Block 1NO - - - Screw No 10 A - -
RS Stock No. 610-2944
Mfr. Part No.ZBVM3
kr 143,77
Each
Units
Harmony XB Light Block - Green 230 V LED Screw No - Yes -
RS Stock No. 331-0158
Mfr. Part No.ZB4BZ101
kr 72,81
Each
Units
Harmony XB4 Contact Block 1NO - 600 V - Screw Yes 10 A - -
RS Stock No. 610-2837
Mfr. Part No.ZBVB4
kr 73,74
Each
Units
Harmony XB Light Block - Red 24 V LED Screw No - - -
RS Stock No. 260-104
Mfr. Part No.33E10
BrandBACO
kr 37,126
Each (In a Pack of 5)
Units
BACO Contact Block 1NO - 600 V - Screw No 10 A - -
RS Stock No. 610-2821
Mfr. Part No.ZBVB3
kr 73,74
Each
Units
Harmony XB Light Block - Green 24 V LED Screw No - - -
RS Stock No. 610-2950
Mfr. Part No.ZBVM4
kr 143,77
Each
Units
Harmony XB Light Block - Red 230 V LED Screw No - Yes -
RS Stock No. 610-2938
Mfr. Part No.ZBVM1
kr 143,77
Each
Units
Harmony XB Light Block - White 230 V LED Screw No - Yes -
RS Stock No. 331-0580
Mfr. Part No.ZENL1121
kr 58,42
Each
Units
Harmony XAL Contact Block 1NC - - - Screw No - - -
RS Stock No. 610-2815
Mfr. Part No.ZBVB1
kr 73,74
Each
Units
Harmony XB Light Block - White 24 V LED Screw No - - -
RS Stock No. 260-154
Mfr. Part No.33E01
BrandBACO
kr 37,702
Each (In a Pack of 5)
Units
BACO Contact Block 1NC - 600 V - Screw No 10 A - -
RS Stock No. 610-2966
Mfr. Part No.ZBVM5
kr 143,77
Each
Units
Harmony XB Light Block - Orange 230 V LED Screw No - Yes -
RS Stock No. 815-1676
Mfr. Part No.ZB2BE101
kr 117,83
Each
Units
XB2 Contact Block 1NO - 600 V - Screw - 10 A - -
RS Stock No. 790-3417
Mfr. Part No.LPXC10
BrandLovato
kr 37,66
Each
Units
Platinum 22mm Contact Block 1NO - 690 V - Screw No 10 A - -
RS Stock No. 399-3630
Mfr. Part No.M22-LED-W
BrandEaton
kr 64,34
Each
Units
RMQ Titan Light Block - White 12 →30 V ac/dc LED Screw No 15 mA Yes -
RS Stock No. 746-9201
Mfr. Part No.ZBE1026
kr 78,70
Each
Units
Harmony XB Contact Block 1NC - - - Screw No - - -
RS Stock No. 610-2972
Mfr. Part No.ZBVM6
kr 143,77
Each
Units
Harmony XB Light Block - Blue 230 V LED Screw No - Yes -
RS Stock No. 110-4500
Mfr. Part No.M22-CLEDC-W
BrandEaton
kr 90,30
Each
Units
M22 Light Block - White 12 → 30 V ac/dc LED Cage Clamp - - Yes -
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