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. 330-9811
Mfr. Part No.ZB4BW0B31
PHP805.65
Each
units
Harmony XB4 Contact & Light Block 1NO Green 24 V ac/dc LED Screw Yes 10 A Yes - -
RS Stock No. 610-2786
Mfr. Part No.ZBE203
PHP672.82
Each
units
Harmony XB Contact Block 2NO - - - Screw No - - - -
RS Stock No. 331-0186
Mfr. Part No.ZB4BZ103
PHP595.40
Each
units
Harmony XB4 Contact Block 2NO - 600 V - Screw Yes 10 A - - -
RS Stock No. 815-1670
Mfr. Part No.ZB2BE102
PHP952.35
Each
units
XB2 Contact Block 1NC - 600 V - Screw - 10 A - - -
RS Stock No. 331-0192
Mfr. Part No.ZB4BZ105
PHP548.23
Each
units
Harmony XB4 Contact Block 1NO 1NC - - - Screw Yes 10 A - - -
RS Stock No. 610-2966
Mfr. Part No.ZBVM5
PHP1,508.73
Each
units
Harmony XB Light Block - Orange 230 V LED Screw No - Yes - -
RS Stock No. 331-0445
Mfr. Part No.ZB5AZ101
PHP286.68
Each
units
Harmony XB5 Contact Block 1NO - - - Screw Yes - - - -
RS Stock No. 610-2821
Mfr. Part No.ZBVB3
PHP628.80
Each
units
Harmony XB Light Block - Green 24 V LED Screw No - - - -
RS Stock No. 399-3753
Mfr. Part No.M22-LED230-G
BrandEaton
PHP711.43
Each
units
M22 Light Block - Green 85 → 264 V ac LED Screw No 15 mA Yes - -
RS Stock No. 331-0417
Mfr. Part No.ZB5AVM3
PHP995.86
Each
units
Harmony XB5 Light Block - Green 230 → 240 V ac LED Screw Yes - Yes - -
RS Stock No. 610-2815
Mfr. Part No.ZBVB1
PHP628.80
Each
units
Harmony XB Light Block - White 24 V LED Screw No - - - -
RS Stock No. 330-9805
Mfr. Part No.ZB4BW0B11
PHP805.65
Each
units
Harmony XB4 Contact & Light Block 1NO White 24 V ac/dc LED Screw Yes 10 A Yes - -
RS Stock No. 610-2950
Mfr. Part No.ZBVM4
PHP1,318.91
Each
units
Harmony XB Light Block - Red 230 V LED Screw No - Yes - -
RS Stock No. 260-154
Mfr. Part No.33E01
BrandBACO
PHP267.18
Each (In a Pack of 5)
units
BACO Contact Block 1NC - 600 V - Screw No 10 A - - -
RS Stock No. 757-8948
Mfr. Part No.1SFA611620R1001
BrandABB
PHP334.34
Each
units
ABB Modular Light Block - - - BA9S Bulb - No - No - -
RS Stock No. 330-9726
Mfr. Part No.ZB4BVM5
PHP1,072.89
Each
units
Harmony XB4 Light Block - Yellow 230 → 240 V LED Screw Yes - Yes - -
RS Stock No. 399-3630
Mfr. Part No.M22-LED-W
BrandEaton
PHP560.16
Each
units
RMQ Titan Light Block - White 24 V LED Screw No 15 mA Yes - -
RS Stock No. 331-0574
Mfr. Part No.ZENL1111
PHP592.52
Each
units
Harmony XAL Contact Block 1NO - - - Screw No 10 A - - -
RS Stock No. 847-5042
Mfr. Part No.M22-CLED-W
BrandEaton
PHP545.60
Each
units
M22 Light Block - White 12 → 30 V ac/dc LED Cage Clamp No 15 mA Yes - -
RS Stock No. 330-9710
Mfr. Part No.ZB4BVM4
PHP1,265.07
Each
units
Harmony XB4 Light Block - Red 230 → 240 V LED Screw Yes - Yes - -
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