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 Priced to Clear For Use With Accessory Type
RS Stock No. 511-8370
Mfr. Part No.800F-NX-BX01
£3.30
Each
Units
Contact Block 1NC 800F - 600 V - Screw No - - - - -
RS Stock No. 610-2843
Mfr. Part No.ZBVB5
£6.83
Each
Units
Light Block - Harmony XB Yellow 24 V LED Screw No - - - - -
RS Stock No. 790-3417
Mfr. Part No.LPXC10
BrandLovato
£2.72
Each
Units
Contact Block 1NO Platinum 22mm - 690 V - Screw No 10 A - - - -
RS Stock No. 610-2966
Mfr. Part No.ZBVM5
£15.18
Each
Units
Light Block - Harmony XB Orange 230 V LED Screw No - Yes - - -
RS Stock No. 330-9811
Mfr. Part No.ZB4BW0B31
£13.23
Each
Units
Contact & Light Block 1NO Harmony XB4 Green 24 V ac/dc LED Screw Yes 10 A Yes - - -
RS Stock No. 610-2893
Mfr. Part No.ZBVG1
£9.92
Each
Units
Light Block - Harmony XB White 110 → 120 V LED Screw No - - - - -
RS Stock No. 330-9805
Mfr. Part No.ZB4BW0B11
£13.23
Each
Units
Contact & Light Block 1NO Harmony XB4 White 24 V ac/dc LED Screw Yes 10 A Yes - - -
RS Stock No. 331-0524
Mfr. Part No.ZALVB3
£8.01
Each
Units
Light Block - Harmony ZALV Green 24 V LED Screw No - Yes - - -
RS Stock No. 331-0467
Mfr. Part No.ZB5AZ102
£5.21
Each
Units
Contact Block 1NC Harmony XB5 - - - Screw Yes 10 A - - - -
RS Stock No. 399-3652
Mfr. Part No.M22-LED-G
BrandEaton
£7.28
Each
Units
Light Block - M22 Green 12 → 30 V ac/dc LED Screw - 15 mA Yes - - -
RS Stock No. 511-8437
Mfr. Part No.800F-PN3W
£6.85
Each
Units
Light Block - 800F White 24 V LED Screw Yes - Yes - - -
RS Stock No. 874-2229
Mfr. Part No.3SU1400-1AA10-1CA0
BrandSiemens
£3.46
Each
Units
Contact Block 1NC SIRIUS ACT - 5 → 500 V ac/dc - Screw No 10 A No - - -
RS Stock No. 790-3408
Mfr. Part No.LPXC01
BrandLovato
£2.72
Each
Units
Contact Block 1NC Platinum 22mm - 690 V - Screw No 10 A - - - -
RS Stock No. 330-9568
Mfr. Part No.ZB4BV6
£5.59
Each
Units
Light Block - Harmony XB4 - 250 V Incandescent BA 9s Base Fitting Yes - No - - -
RS Stock No. 746-8863
Mfr. Part No.ZD4PA203
£26.15
Each
Units
Contact Block - Harmony XB4 - - - Screw Yes - - - - -
RS Stock No. 757-8929
Mfr. Part No.MCB-10
BrandABB
£4.01
Each
Units
Contact Block 1NO ABB Modular - - - - No - - - - -
RS Stock No. 511-8320
Mfr. Part No.800F-PX01
£4.69
Each
Units
Contact Block 1NC 800F - 600 V - Screw Yes - - - - -
RS Stock No. 330-9653
Mfr. Part No.ZB4BVG3
£11.99
Each
Units
Light Block - Harmony XB4 Green 110 → 120 V LED Screw Yes - Yes - - -
RS Stock No. 757-8932
Mfr. Part No.1SFA611610R1010
BrandABB
£4.01
Each
Units
Contact Block 1NC ABB Modular - - - - No - - - - -
RS Stock No. 511-8409
Mfr. Part No.800F-PN3G
£6.85
Each
Units
Light Block - 800F Green 24 V ac/dc LED Screw Yes - Yes - - -
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