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 For Use With Accessory Type
RS Stock No. 135-5666
Mfr. Part No.3SU1401-1BH30-1AA0
BrandSiemens
kr 178,46
Each
Units
SIRIUS ACT Light Block - Yellow 24 → 240 V ac/dc LED Screw - - Yes - -
RS Stock No. 746-8872
Mfr. Part No.ZD5PA203
kr 215,65
Each
Units
Harmony XB5 Contact Block - - - - Screw Yes - - - -
RS Stock No. 135-5645
Mfr. Part No.3SU1401-1BC60-1AA0
BrandSiemens
kr 147,56
Each
Units
SIRIUS ACT Light Block - White 110 V ac LED Screw - - Yes - -
RS Stock No. 742-9644
Mfr. Part No.3SB3403-1PA
BrandSiemens
kr 79,30
Each
Units
Siemens 3SB3 Light Block - Yellow 24 V LED Cage Clamp No - Yes - -
RS Stock No. 422-8353
Mfr. Part No.ZB5AVB6
kr 110,55
Each
Units
Harmony XB5 Light Block - Blue 24 V ac/dc LED Screw Yes - Yes - -
RS Stock No. 757-8926
Mfr. Part No.1SFA611605R1120
BrandABB
kr 91,52
Each
Units
ABB Modular Contact Block 2NC - - - - Yes - - - -
RS Stock No. 874-2165
Mfr. Part No.3SU1400-2AA10-3BA0
BrandSiemens
kr 67,10
Each
Units
SIRIUS ACT Contact Block 1NO - 5 → 500 V ac/dc - Cage Clamp No 10 A No - -
RS Stock No. 422-8858
Mfr. Part No.ZB6E2B
kr 41,73
Each
Units
Harmony XB6 Contact Block 1NC - - - - - - - - -
RS Stock No. 742-9736
Mfr. Part No.3SB3423-1RE
BrandSiemens
kr 147,97
Each
Units
Siemens 3SB3 Light Block - White 230 V LED Cage Clamp No - Yes - -
RS Stock No. 193-4705
Mfr. Part No.3SU1401-1BB50-1AA2
BrandSiemens
kr 214,36
Each
Units
SIRIUS ACT - - Blue - LED Screw - 20 mA Yes - -
RS Stock No. 817-4893
Mfr. Part No.ZB5AVG6
kr 145,02
Each
Units
Harmony XB5 Light Block - Blue 110 → 120 V ac LED Screw Yes - Yes - -
RS Stock No. 260-390
Mfr. Part No.33EAGM
BrandBACO
kr 107,88
Each
Units
BACO Light Block - Green 130 V LED Screw No - Yes - -
RS Stock No. 757-8913
Mfr. Part No.1SFA611605R1110
BrandABB
kr 53,84
Each
Units
ABB Modular Contact Block 1NC - - - - Yes - - - -
RS Stock No. 553-894
Mfr. Part No.ZBVJ65
kr 103,03
Each
Units
Harmony XB Light Block - Blue 12 V LED Cage Clamp No - Yes - -
RS Stock No. 135-5671
Mfr. Part No.3SU1401-2BF60-1AA0
BrandSiemens
kr 170,49
Each
Units
SIRIUS ACT Light Block - White 230 V ac LED Screw - - Yes - -
RS Stock No. 134-8239
Mfr. Part No.800F-MN7G
kr 113,65
Each
Units
800F Light Block - Green 240 V ac LED Screw - 6 mA Yes - -
RS Stock No. 173-6816
Mfr. Part No.3SU1400-1AA10-1FA0
BrandSiemens
kr 89,03
Each
Units
SIRIUS ACT Contact Block SPDT - 500 V ac/dc - Screw - 10 A - - -
RS Stock No. 193-2578
Mfr. Part No.3SU1401-1BG20-3AA0
BrandSiemens
kr 119,04
Each
Units
SIRIUS ACT - - Red - LED Cage Clamp - 20 mA Yes - -
RS Stock No. 183-4461
Mfr. Part No.800T-XD6
kr 164,59
Each
Units
800T Contact Block NC - - - - - 10 A - - -
RS Stock No. 188-1196
BrandRS PRO
kr 52,49
Each
Units
- Light Block - Green 240 V ac LED - - - Yes - -
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