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. 422-8612
Mfr. Part No.ZB5AW0M35
€21.82
Each
units
Harmony XB5 Contact & Light Block - Green 230 → 240 V ac LED Screw Yes - - - -
RS Stock No. 874-2210
Mfr. Part No.3SU1400-1AA10-1BA0
BrandSiemens
€4.50
Each
units
SIRIUS ACT Contact Block 1NO - 5 → 500 V ac/dc - Screw No 10 A No - -
RS Stock No. 511-8409
Mfr. Part No.800F-PN3G
€11.40
Each
units
800F Light Block - Green 24 V ac/dc LED Screw Yes - Yes - -
RS Stock No. 330-9619
Mfr. Part No.ZB4BVB5
€8.20
Each
units
Harmony XB4 Light Block - Orange 24 V LED Screw Yes - Yes - -
RS Stock No. 330-9899
Mfr. Part No.ZB4BW0B61
€11.95
Each
units
Harmony XB4 Contact & Light Block 1NO Blue 24 V ac/dc LED Screw Yes 10 A Yes - -
RS Stock No. 511-8320
Mfr. Part No.800F-PX01
€6.55
Each
units
800F Contact Block 1NC - 600 V - Screw Yes - - - -
RS Stock No. 399-3674
Mfr. Part No.218057 & M22-LED-B
BrandEaton
€8.52
Each
units
M22 Light Block - Blue 12 → 30 V ac/dc LED Screw No 15 mA Yes - -
RS Stock No. 330-9805
Mfr. Part No.ZB4BW0B11
€11.95
Each
units
Harmony XB4 Contact & Light Block 1NO White 24 V ac/dc LED Screw Yes 10 A Yes - -
RS Stock No. 330-9811
Mfr. Part No.ZB4BW0B31
€11.95
Each
units
Harmony XB4 Contact & Light Block 1NO Green 24 V ac/dc LED Screw Yes 10 A Yes - -
RS Stock No. 610-2922
Mfr. Part No.ZBVG5
€8.83
Each
units
Harmony XB Light Block - Orange - LED Screw No - - - -
RS Stock No. 331-0192
Mfr. Part No.ZB4BZ105
€8.87
Each
units
Harmony XB4 Contact Block 1NO 1NC - - - Screw Yes 10 A - - -
RS Stock No. 610-2950
Mfr. Part No.ZBVM4
€13.27
Each
units
Harmony XB Light Block - Red 230 V LED Screw No - Yes - -
RS Stock No. 810-3781
Mfr. Part No.216505 & M22-AK11
BrandEaton
€11.08
Each
units
M22 Contact Block 1NO 1NC - 500 V - Screw Yes 4 A - - -
RS Stock No. 342-2712
Mfr. Part No.ZB4BW0M32
€19.55
Each
units
Harmony XB4 Contact & Light Block 1NO Green 230 → 240 V ac LED Screw Yes 10 A Yes - -
RS Stock No. 399-3696
Mfr. Part No.216561 & M22-LEDC-R
BrandEaton
€8.77
Each
units
M22 Light Block - Red 12 → 30 V ac/dc LED Screw No 15 mA Yes - -
RS Stock No. 610-2859
Mfr. Part No.ZBVB6
€6.28
Each
units
Harmony XB Light Block - Blue 24 V LED Screw No - - - -
RS Stock No. 610-2938
Mfr. Part No.ZBVM1
€13.27
Each
units
Harmony XB Light Block - White 230 V LED Screw No - Yes - -
RS Stock No. 399-3703
Mfr. Part No.216562 & M22-LEDC-G
BrandEaton
€8.77
Each
units
M22 Light Block - Green 12 → 30 V ac/dc LED Screw No 15 mA Yes - -
RS Stock No. 874-2250
Mfr. Part No.3SU1401-1BB60-1AA0
BrandSiemens
€7.24
Each
units
SIRIUS ACT Light Block - White 24 V ac/dc LED Screw No 20 mA Yes - -
RS Stock No. 330-9956
Mfr. Part No.ZB4BW0M31
€19.55
Each
units
Harmony XB4 Contact & Light Block 1NO Green 230 → 240 V ac LED Screw Yes 10 A Yes - -
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