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. 174-4227
Mfr. Part No.A22NZ-S-P2BN
BrandOmron
TWD512.00
Each
units
A22NZ Contact Block DPNC - 240 V ac/dc - Push-In Yes 10 A - - -
RS Stock No. 174-4226
Mfr. Part No.A22NZ-S-P1BN
BrandOmron
TWD384.00
Each
units
A22NZ Contact Block NC - 240 V ac/dc - Push-In Yes 10 A - - -
RS Stock No. 174-4225
Mfr. Part No.A22NZ-S-P1AN
BrandOmron
TWD384.00
Each
units
A22NZ Contact Block SPNO - 240 V ac/dc - Push-In Yes 10 A - - -
RS Stock No. 174-4230
Mfr. Part No.A22NZ-T-CPN
BrandOmron
TWD352.00
Each
units
A22NZ Light Block - - 24 V ac/dc - Push-In Yes 10 A - - -
RS Stock No. 174-4229
Mfr. Part No.A22NZ-S-P2CN
BrandOmron
TWD512.00
Each
units
A22NZ Contact Block SPDT - 240 V ac/dc - Push-In Yes 10 A - - -