Mains Test Blocks

Mains test blocks are temporary power hubs where mains-powered equipment can be plugged into 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, testbeds 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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Omschrijving Prijs Type Voltage Rating Cable Entry Circuit Type Contact Configuration Corded Mounting Type Cable Length Connection Type Width Height Depth Colour Maximum Supported Cable
RS-stocknr. 458-926
40,62 €
Each
Aantal stuks
- 240 V ac 4 → 7mm - - - - - - 60mm 48mm 127mm - 7mm
RS-stocknr. 827-041
47,03 €
Each
Aantal stuks
- 240 V ac 4 → 7mm - - Yes - 1.5m - 60mm 48mm 127mm - 7mm
RS-stocknr. 399-6178
FabrikantnummerCMCTVIEC
79,72 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 726-0085
48,33 €
Each
Aantal stuks
- 240 V ac 4 → 7mm - - Yes - 1.5m - 60mm 48mm 127mm - 7mm
RS-stocknr. 804-0778
Fabrikantnummer1SNA166936R1000
FabrikantEssailec
46,61 €
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm 122mm - -
RS-stocknr. 399-6184
FabrikantnummerCMCTV13A
36,46 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 804-0750
Fabrikantnummer1SNA 16623 R1200
FabrikantEssailec
155,24 €
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 44mm 63mm 40mm - 10 mm²
RS-stocknr. 181-0478
Fabrikantnummer1SNA166941R2500
FabrikantEntrelec
230,93 €
Each
Aantal stuks
Current Socket 400 V - Current - - DIN Rail Mount - Ring Tongue 44mm 63mm 80mm Green -
RS-stocknr. 804-0772
Fabrikantnummer1SNA167937R0000
FabrikantEssailec
154,16 €
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm 55mm - -
RS-stocknr. 199-4813
FabrikantRS PRO
63,72 €
Each
Aantal stuks
Lid 440 V ac - Voltage Normally Open - Surface Mount - Quick Connect - - - - -
RS-stocknr. 804-0794
Fabrikantnummer1SNA166745R0000
FabrikantEssailec
109,55 €
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-stocknr. 804-0804
Fabrikantnummer1SNA166627R2200
FabrikantEssailec
126,32 €
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-stocknr. 804-0790
Fabrikantnummer1SNA166747R0200
FabrikantEssailec
131,34 €
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-stocknr. 811-2274
FabrikantRS PRO
63,72 €
Each
Aantal stuks
- 440 V ac - - - - - - - 100mm 49mm 160mm - -
RS-stocknr. 804-0813
Fabrikantnummer1SNA167935R1000
FabrikantABB
183,02 €
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm 2232mm - -
RS-stocknr. 804-0775
Fabrikantnummer1SNA166625R2000
FabrikantEssailec
157,14 €
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-stocknr. 199-4816
FabrikantRS PRO
39,84 €
Each
Aantal stuks
Lid 24 V dc, 250 V ac - Voltage Normally Open - Surface Mount - - - - - - -
RS-stocknr. 804-0788
Fabrikantnummer1SNA166578R0100
FabrikantEssailec
16,21 €
Each
Aantal stuks
- - - - - - - - - 49mm 73mm 30mm - -
RS-stocknr. 804-0826
Fabrikantnummer1SNA166646R0500
FabrikantEssailec
12,29 €
Each
Aantal stuks
- 400 V - - - - - - - 49mm 73mm 30mm - -
RS-stocknr. 804-0810
Fabrikantnummer1SNA166937R1100
FabrikantEssailec
46,61 €
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm 122mm - -