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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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. 726-0085
€ 45,96
Each
Aantal stuks
- 240 V ac 4 → 7mm - - Yes - 1.5m - 60mm 48mm 127mm - 7mm
RS-stocknr. 458-926
€ 38,62
Each
Aantal stuks
- 240 V ac 4 → 7mm - - - - - - 60mm 48mm 127mm - 7mm
RS-stocknr. 827-041
€ 44,73
Each
Aantal stuks
- 240 V ac 4 → 7mm - - Yes - 1.5m - 60mm 48mm 127mm - 7mm
RS-stocknr. 804-0775
Fabrikantnummer1SNA166625R2000
FabrikantEssailec
€ 164,35
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-stocknr. 804-0788
Fabrikantnummer1SNA166578R0100
FabrikantEssailec
€ 17,16
Each
Aantal stuks
- - - - - - - - - 49mm 73mm 30mm - -
RS-stocknr. 804-0826
Fabrikantnummer1SNA166646R0500
FabrikantEssailec
€ 12,02
Each
Aantal stuks
- 400 V - - - - - - - 49mm 73mm 30mm - -
RS-stocknr. 399-6178
FabrikantnummerCMCTVIEC
€ 45,65
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 811-2274
FabrikantRS PRO
€ 61,39
Each
Aantal stuks
- 440 V ac - - - - - - - 100mm 49mm 160mm - -
Nieuw
RS-stocknr. 199-4816
FabrikantRS PRO
€ 37,50
Each
Aantal stuks
Lid 250 V ac, 24 V dc - Voltage Normally Open - Surface Mount - - - - - - -
RS-stocknr. 804-0750
Fabrikantnummer1SNA 16623 R1200
FabrikantEssailec
€ 168,55
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 44mm 63mm 40mm - 10 mm²
RS-stocknr. 804-0778
Fabrikantnummer1SNA166936R1000
FabrikantEssailec
€ 47,13
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm 122mm - -
RS-stocknr. 804-0813
Fabrikantnummer1SNA167935R1000
FabrikantABB
€ 203,88
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm 2232mm - -
RS-stocknr. 399-6184
FabrikantnummerCMCTV13A
€ 27,80
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 804-0790
Fabrikantnummer1SNA166747R0200
FabrikantEssailec
€ 134,47
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-stocknr. 804-0810
Fabrikantnummer1SNA166937R1100
FabrikantEssailec
€ 47,13
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm 122mm - -
Nieuw
RS-stocknr. 199-4813
FabrikantRS PRO
€ 60,27
Each
Aantal stuks
Lid 440 V ac - Voltage Normally Open - Surface Mount - Quick Connect - - - - -
RS-stocknr. 804-0772
Fabrikantnummer1SNA167937R0000
FabrikantEssailec
€ 169,77
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm 55mm - -
RS-stocknr. 181-0478
Fabrikantnummer1SNA166941R2500
FabrikantEntrelec
€ 301,86
Each
Aantal stuks
Current Socket 400 V - Current - - DIN Rail Mount - Ring Tongue 44mm 63mm 80mm Green -
RS-stocknr. 804-0794
Fabrikantnummer1SNA166745R0000
FabrikantEssailec
€ 116,23
Each
Aantal stuks
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-stocknr. 804-0781
Fabrikantnummer1SNA166638R0500
FabrikantEssailec
€ 436,27
Each
Aantal stuks
- 400 V - - - - - - - 44mm 63mm - - -