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
RS庫存編號 331-0445
製造零件編號ZB5AZ101
HK$45.52
單位
Harmony XB5 Contact Block 1NO - - - Screw Yes - -
RS庫存編號 422-8347
製造零件編號ZB5AVB1
HK$60.89
單位
Harmony XB5 Light Block - White 24 V ac/dc LED Screw Yes - Yes
RS庫存編號 609-6849
製造零件編號XENG3791
HK$209.00
單位
XAC, XACA Contact Block - - - - - - - -
RS庫存編號 742-9458
製造零件編號3SB3400-0BA
BrandSiemens
HK$66.79
單位
Siemens 3SB3 Contact Block 1NO - - - Screw No 10 A -
RS庫存編號 609-6833
製造零件編號XENG1491
HK$191.33
單位
XAC, XACA, XACA9 Contact Block - - - - - - - -
RS庫存編號 610-2938
製造零件編號ZBVM1
HK$148.41
單位
Harmony XB Light Block - White 230 V LED Screw No - Yes
RS庫存編號 330-9596
製造零件編號ZB4BVB3
HK$88.46
單位
Harmony XB4 Light Block - Green 24 V LED Screw Yes - Yes
RS庫存編號 331-0530
製造零件編號ZALVB4
HK$72.47
單位
Harmony ZALV Light Block - Red 24 V LED Screw No - Yes
RS庫存編號 330-9782
製造零件編號ZB4BW065
HK$126.00
單位
Harmony XB4 Contact & Light Block 1NO 1NC - 250 V - Screw Yes 10 A No
RS庫存編號 609-3165
製造零件編號ZB5AZ105
HK$85.70
單位
Harmony XB5 Contact Block 1NO 1NC - - - Screw Yes 10 A -
RS庫存編號 453-2955
製造零件編號3SB3411-0C
BrandSiemens
HK$38.69
單位
Siemens 3SB3 Contact Block 1NC - - - Solder Pin No - -
RS庫存編號 455-5346
製造零件編號3SB3420-1A
BrandSiemens
HK$46.68
單位
Siemens 3SB3 Light Block - - - BA9S Bulb Screw No - No
RS庫存編號 330-9568
製造零件編號ZB4BV6
HK$40.84
單位
Harmony XB4 Light Block - - 250 V Incandescent BA 9s Base Fitting Yes - No
RS庫存編號 422-8612
製造零件編號ZB5AW0M35
HK$211.23
單位
Harmony XB5 Contact & Light Block - Green 230 → 240 V ac LED Screw Yes - -
RS庫存編號 260-255
製造零件編號33EARL
BrandBACO
HK$85.06
單位
BACO Light Block - Red 24 V LED Screw No - Yes
RS庫存編號 331-0164
製造零件編號ZB4BZ102
HK$55.12
單位
Harmony XB4 Contact Block 1NC - 600 V - Screw Yes - -
RS庫存編號 453-2949
製造零件編號3SB3411-0B
BrandSiemens
HK$38.69
單位
Siemens 3SB3 Contact Block 1NO - - - Solder Pin No - -
RS庫存編號 553-955
製造零件編號ZB4BZ1045
HK$88.50
單位
Harmony XB4 Contact Block 2NC - - - Screw Yes 10 A -
RS庫存編號 411-1340
製造零件編號3SB3400-0B
BrandSiemens
HK$36.50
單位
Siemens 3SB3 Contact Block 1NO - - - Screw No 10 A -
RS庫存編號 810-3772
製造零件編號M22-AK10
BrandEaton
HK$55.76
單位
M22 Contact Block 1NO - 500 V - Screw Yes 4 A -