Mains Test Blocks

Mains test blocks are temporary power hubs where mains-powered equipment can be plugged in to test equipment. These blocks are also used to test the current and voltage levels of power circuits.

Mains test blocks have plug-and-play attributes where the current can be tested without cutting the power supply. The test blocks operate on a make-before-break principle where the short-circuiting of the current transformers automatically occurs without requiring a switch for manual operation.


What are mains test blocks used for?

Mains test blocks are used for the testing of machinery to prevent damage to equipment if there are faulty currents or wires. These blocks are often used in laboratories, test beds and service areas.

Mains test blocks are used in transformers to test protection relays of secondary circuits. Test blocks are also applied to utility components to validate meter readings and calibrations. In factories, mains test blocks are also used to repair and replace equipment without having to disconnect or modify the power cable attached.

Types of mains test blocks

Mains test blocks are categorised by voltage, rating, connection type and pole count.


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Viewing 21 - 24 of 24 products
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Description Price Type Voltage Rating Cable Entry Circuit Type Corded Mounting Type Cable Length Connection Type Width Height Depth Colour Maximum Supported Cable Current Rating
RS Stock No. 399-6184
Mfr. Part No.CMCTV13A
kr 277,17
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 399-6178
Mfr. Part No.CMCTVIEC
kr 455,13
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 804-0804
Mfr. Part No.1SNA166627R2200
BrandEssailec
kr 650,02
Each
Units
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - 50mm 74mm 57mm - 10 mm² 8A
RS Stock No. 804-0781
Mfr. Part No.1SNA166638R0500
BrandEssailec
kr 3 343,61
Each
Units
- 400 V - - - - - - 44mm 63mm - - - 15A
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