Commoning Blocks

Commoning blocks are insulated modular parts that connect cables with equal electrical potential. These blocks are affixed to bases that connect them to DIN rail mountings. Each pole of the block is linked internally by a copper busbar, providing a low resistance connection path.

Commoning blocks have up to three connection levels, which allow for easy insertion of conductors. The connection bars are nickel plated to protect the component against corrosion.

What are commoning blocks used for?

Commoning blocks are often used in junction boxes, panel boards and equipotential earthing applications. They allow for the disconnection of branch wires without interrupting the main conductors and shutting down the circuit. They are typical in medical industries where potential (charge) equalisation is necessary to earth (ground) equipment and electrical instruments.

Types of commoning blocks

Commoning blocks come in a variety of types, with different physical attributes like pole length, size and number of poles. Blocks are categorised as double row, single pole, multi-pole or quick connect.

Commonning blocks are also distinguished by the level of potential they are compatible with in terms of voltage and ampere range.


...
Read more Read less

Filters

Viewing 1 - 8 of 8 products
Results per page
Description Price Number of Ways Wire Size Current Rating Rail Mounting Compatibility Termination Method Length Width Height Voltage Rating Cable CSA Maximum Operating Temperature Colour
RS Stock No. 880-6809
BrandRS PRO
HK$6.693
Each (In a Pack of 10)
units
- - - Yes - - - - - - - Clear
RS Stock No. 388-2833
BrandRS PRO
HK$139.417
Each (In a Pack of 3)
units
12 10 → 5 AWG 100A Yes Screw Down 104.5mm 50mm 42mm 450 V 6 mm², 16 mm² +85°C Clear
RS Stock No. 388-2861
BrandRS PRO
HK$120.31
Each (In a Pack of 3)
units
11 10 → 2 AWG 170A - Screw Down 58mm 43mm 42mm 450 V 6 mm², 35 mm² +85°C Clear
RS Stock No. 880-6812
BrandRS PRO
HK$7.322
Each (In a Pack of 10)
units
- - - Yes - - - - - - - Clear
RS Stock No. 880-6806
BrandRS PRO
HK$5.526
Each (In a Pack of 10)
units
- - - Yes - - - - - - - Clear
RS Stock No. 880-6815
BrandRS PRO
HK$7.322
Each (In a Pack of 10)
units
- - - Yes - - - - - - - Clear
RS Stock No. 388-2855
BrandRS PRO
HK$102.197
Each (In a Pack of 3)
units
12 10 → 5 AWG 100A - Screw Down 104.5mm 32.5mm 36.5mm 450 V 6 mm², 16 mm² +85°C Clear
RS Stock No. 880-6796
BrandRS PRO
HK$8.413
Each (In a Pack of 10)
units
- - - Yes - - - - - - - Clear
Related Products
Chassis mounting mains transformers with twin 115Va.c. 50/60Hz ...
Description:
Chassis mounting mains transformers with twin 115Va.c. 50/60Hz primary windings which may be connected in series for 230V or parallel for 115V operation. The two independent secondary windings may be connected in series or parallel to give a wide range ...
Chassis mounting low voltage mains transformers with a ...
Description:
Chassis mounting low voltage mains transformers with a single 230Va.c. 50/60Hz primary winding. The two independent secondary windings may be connected in series or parallel to give a wide range of output voltage and current options. Double section bobbin constructionFully ...
Twin 115Va.c. 50/60Hz primary windings which may be ...
Description:
Twin 115Va.c. 50/60Hz primary windings which may be connected in series for 230V or parallel for 115V operationFully shrouded bobbins100% electrical and flash testedTested in accordance with BS3535 and EN 60 742.
230Va.c. 50 to 60Hz primarySingle or twin secondary ...
Description:
230Va.c. 50 to 60Hz primarySingle or twin secondary windings for series or parallel connection (For conformance reasons,0.35 to 3.2VA transformers with 2 x 15 and 2 x 18V outputs and all transformers with 2x 24V outputs should not have their ...