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. 526-8633
Mfr. Part No.3LD9220-0C
BrandSiemens
PHP631.11
Each
units
- - - - - - - - - - - -
RS Stock No. 874-2229
Mfr. Part No.3SU1400-1AA10-1CA0
BrandSiemens
PHP393.37
Each
units
SIRIUS ACT Contact Block 1NC - 5 → 500 V ac/dc - Screw No 10 A No - -
RS Stock No. 874-2250
Mfr. Part No.3SU1401-1BB60-1AA0
BrandSiemens
PHP470.99
Each
units
SIRIUS ACT Light Block - White 24 V ac/dc LED Screw No 20 mA Yes - -
RS Stock No. 411-2006
Mfr. Part No.3SB3400-0E
BrandSiemens
PHP716.20
Each
units
Siemens 3SB3 Contact Block 2NC - - - Screw No 10 A - - -
RS Stock No. 411-1362
Mfr. Part No.3SB3400-0C
BrandSiemens
PHP343.94
Each
units
Siemens 3SB3 Contact Block 1NC - - - Screw No 10 A No - -
RS Stock No. 411-1946
Mfr. Part No.3SB3400-1PB
BrandSiemens
PHP451.35
Each
units
Siemens 3SB3 Light Block - Red 24 V LED Screw No - Yes - -
RS Stock No. 173-6826
Mfr. Part No.3SU1400-2CK10-1AA0
BrandSiemens
PHP485.59
Each
units
SIRIUS ACT Light Block - - 240 V ac/dc - Screw - - - - -
RS Stock No. 135-5658
Mfr. Part No.3SU1400-1AA10-1HA0
BrandSiemens
PHP649.01
Each
units
SIRIUS ACT Contact Block NC - 5 → 500 V ac/dc - Screw - 10 A - - -
RS Stock No. 874-2285
Mfr. Part No.3SU1501-1AG60-1CA0
BrandSiemens
PHP806.20
Each
units
SIRIUS ACT Contact & Light Block 1NC White 6 → 24 V ac/dc LED Screw Yes 6 A Yes - -
RS Stock No. 183-7297
Mfr. Part No.3SU1401-1BH50-3AA0
BrandSiemens
PHP1,075.85
Each
units
3SU1401 Light Block - Blue 24 → 240 V ac/dc LED Cage Clamp - 20 mA Yes - -
RS Stock No. 193-3829
Mfr. Part No.3SU1401-2BC20-3AA0
BrandSiemens
PHP1,150.16
Each
units
SIRIUS ACT - - Red 110 V ac LED Cage Clamp - 20 mA Yes - -
RS Stock No. 193-2336
Mfr. Part No.3SU1401-2BG40-1AA0
BrandSiemens
PHP574.92
Each
units
SIRIUS ACT - - Green - LED Screw - 20 mA Yes - -
RS Stock No. 193-4701
Mfr. Part No.3SU1400-3AA10-5BA0
BrandSiemens
PHP2,311.08
Each
units
SIRIUS ACT Contact Block - - 5 ... 240 V AC/DC - - - 6 A - - -
RS Stock No. 183-7298
Mfr. Part No.3SU1401-2BF40-1AA0
BrandSiemens
PHP944.92
Each
units
3SU1401 Light Block - Green 230 V ac LED Screw - 20 mA Yes - -
RS Stock No. 173-6831
Mfr. Part No.3SU1401-1BF50-3AA0
BrandSiemens
PHP893.69
Each
units
SIRIUS ACT Light Block - Blue 230 V ac LED Cage Clamp - 20 mA - - -
RS Stock No. 193-2719
Mfr. Part No.3SU1551-1AB60-3NA0
BrandSiemens
PHP1,790.61
Each
units
SIRIUS ACT Contact Block - White 24 ... 24 V LED Cage Clamp - - Yes - -
RS Stock No. 135-5659
Mfr. Part No.3SU1400-1AA10-3HA0
BrandSiemens
PHP876.17
Each
units
SIRIUS ACT Contact Block NC - 5 → 500 V ac/dc - Cage Clamp - 10 A - - -
RS Stock No. 874-2260
Mfr. Part No.3SU1401-1BF40-1AA0
BrandSiemens
PHP844.40
Each
units
SIRIUS ACT Light Block - Green 230 V ac LED Screw No 20 mA Yes - -
RS Stock No. 173-6827
Mfr. Part No.3SU1401-1BC40-1AA0
BrandSiemens
PHP727.61
Each
units
SIRIUS ACT Light Block - Green 110 V ac LED Screw - 20 mA - - -
RS Stock No. 742-9742
Mfr. Part No.3SB3423-2H
BrandSiemens
PHP605.43
Each
units
3SB3 Light Block - - - - - - - - - -