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. 757-8929
Mfr. Part No.1SFA611610R1001
BrandABB
HK$34.05
Each
units
ABB Modular Contact Block 1NO - - - - No - - - -
RS Stock No. 757-8941
Mfr. Part No.1SFA611621R1011
BrandABB
HK$87.64
Each
units
ABB Modular Light Block - Red 24 V LED - No - Yes - -
RS Stock No. 757-8945
Mfr. Part No.1SFA611621R1012
BrandABB
HK$88.09
Each
units
ABB Modular Light Block - Green 24 V LED - No - Yes - -
RS Stock No. 757-8926
Mfr. Part No.1SFA611605R1120
BrandABB
HK$74.01
Each
units
ABB Modular Contact Block 2NC - - - - Yes - - - -
RS Stock No. 757-8948
Mfr. Part No.1SFA611620R1001
BrandABB
HK$33.57
Each
units
ABB Modular Light Block - - - BA9S Bulb - No - No - -
RS Stock No. 757-8901
Mfr. Part No.1SFA611605R1101
BrandABB
HK$40.07
Each
units
ABB Modular Contact Block 1NO - - - - Yes - - - -
RS Stock No. 757-8939
Mfr. Part No.1SFA611610R1020
BrandABB
HK$68.65
Each
units
ABB Modular Contact Block 2NC - - - - No - - - -
RS Stock No. 757-8960
Mfr. Part No.1SFA611621R1045
BrandABB
HK$88.09
Each
units
ABB Modular Light Block - White 110 V LED - No - Yes - -
RS Stock No. 757-8910
Mfr. Part No.1SFA611605R1102
BrandABB
HK$74.01
Each
units
ABB Modular Contact Block 2NO - - - - Yes - - - -
RS Stock No. 757-8967
Mfr. Part No.1SFA611621R1072
BrandABB
HK$88.09
Each
units
ABB Modular Light Block - Green 230 V LED - No - Yes - -
RS Stock No. 757-8951
Mfr. Part No.1SFA611621R1042
BrandABB
HK$87.64
Each
units
ABB Modular Light Block - Green 110 V LED - No - Yes - -
RS Stock No. 528-6221
Mfr. Part No.MCB-01B
BrandABB
HK$33.88
Each
units
ABB Modular Contact Block 1NC - - - - No - - - -
RS Stock No. 757-8954
Mfr. Part No.1SFA611621R1015
BrandABB
HK$88.09
Each
units
ABB Modular Light Block - White 24 V LED - No - Yes - -
RS Stock No. 757-8932
Mfr. Part No.1SFA611610R1010
BrandABB
HK$33.97
Each
units
ABB Modular Contact Block 1NC - - - - No - - - -
RS Stock No. 757-8976
Mfr. Part No.1SFA611621R1075
BrandABB
HK$88.09
Each
units
ABB Modular Light Block - White 230 V LED - No - Yes - -
RS Stock No. 757-8923
Mfr. Part No.1SFA611610R1002
BrandABB
HK$68.65
Each
units
ABB Modular Contact Block 2NO - - - - No - - - -
RS Stock No. 757-8963
Mfr. Part No.1SFA611621R1071
BrandABB
HK$88.09
Each
units
ABB Modular Light Block - Red 230 V LED - No - Yes - -
RS Stock No. 757-8935
Mfr. Part No.1SFA611610R1011
BrandABB
HK$68.65
Each
units
ABB Modular Contact Block 1NO 1NC - - - - No - - - -
RS Stock No. 757-8917
Mfr. Part No.1SFA611605R1111
BrandABB
HK$74.01
Each
units
ABB Modular Contact Block 1NO 1NC - - - - Yes - - - -
RS Stock No. 528-6209
Mfr. Part No.MCB-10B
BrandABB
HK$33.88
Each
units
ABB Modular Contact Block 1NO - - - - No - - - -