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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Beskrivning Pris Type Voltage Rating Cable Entry Circuit Type Contact Configuration Corded Mounting Type Cable Length Connection Type Width Height Depth Colour Maximum Supported Cable
RS-artikelnummer 811-2274
VarumärkeRS PRO
634,75 kr
Each
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- 440 V ac - - - - - - - 100mm 49mm 160mm - -
Nytt
RS-artikelnummer 199-4813
VarumärkeRS PRO
623,16 kr
Each
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Lid 440 V ac - Voltage Normally Open - Surface Mount - Quick Connect - - - - -
Nytt
RS-artikelnummer 199-4816
VarumärkeRS PRO
387,76 kr
Each
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Lid 250 V ac, 24 V dc - Voltage Normally Open - Surface Mount - - - - - - -
RS-artikelnummer 458-926
VarumärkeCliff Electronics
399,33 kr
Each
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- 240 V ac 4 → 7mm - - - - - - 60mm 48mm 127mm - 7mm
RS-artikelnummer 399-6178
Tillv. art.nrCMCTVIEC
VarumärkeCarroll & Meynell
472,02 kr
Each
Enheter
- - - - - - - - - - - - - -
RS-artikelnummer 804-0778
Tillv. art.nr1SNA166936R1000
VarumärkeEssailec
487,32 kr
Each
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- 400 V - - - - - - - 44mm 63mm 122mm - -
RS-artikelnummer 726-0085
VarumärkeCliff Electronics
475,23 kr
Each
Enheter
- 240 V ac 4 → 7mm - - Yes - 1.5m - 60mm 48mm 127mm - 7mm
RS-artikelnummer 804-0807
Tillv. art.nr1SNA166546R2100
VarumärkeEssailec
284,28 kr
Each
Enheter
- 400 V - - - - - - - 44mm - 83.5mm - -
RS-artikelnummer 804-0794
Tillv. art.nr1SNA166745R0000
VarumärkeEssailec
1 201,84 kr
Each
Enheter
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-artikelnummer 804-0797
Tillv. art.nr1SNA166743R0600
VarumärkeEssailec
1 231,02 kr
Each
Enheter
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-artikelnummer 804-0810
Tillv. art.nr1SNA166937R1100
VarumärkeEssailec
487,32 kr
Each
Enheter
- 400 V - - - - - - - 44mm 63mm 122mm - -
RS-artikelnummer 804-0813
Tillv. art.nr1SNA167935R1000
VarumärkeABB
2 108,10 kr
Each
Enheter
- 400 V - - - - - - - 44mm 63mm 2232mm - -
RS-artikelnummer 804-0750
Tillv. art.nr1SNA 16623 R1200
VarumärkeEssailec
1 742,80 kr
Each
Enheter
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 44mm 63mm 40mm - 10 mm²
RS-artikelnummer 804-0781
Tillv. art.nr1SNA166638R0500
VarumärkeEssailec
4 511,02 kr
Each
Enheter
- 400 V - - - - - - - 44mm 63mm - - -
RS-artikelnummer 804-0790
Tillv. art.nr1SNA166747R0200
VarumärkeEssailec
1 390,45 kr
Each
Enheter
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-artikelnummer 804-0804
Tillv. art.nr1SNA166627R2200
VarumärkeEssailec
1 369,82 kr
Each
Enheter
- 400 V 0.34 → 10 (Wire Size) mm² - - - - - - 50mm 74mm 57mm - 10 mm²
RS-artikelnummer 827-041
VarumärkeCliff Electronics
462,51 kr
Each
Enheter
- 240 V ac 4 → 7mm - - Yes - 1.5m - 60mm 48mm 127mm - 7mm
RS-artikelnummer 804-0826
Tillv. art.nr1SNA166646R0500
VarumärkeEssailec
124,26 kr
Each
Enheter
- 400 V - - - - - - - 49mm 73mm 30mm - -
RS-artikelnummer 399-6184
Tillv. art.nrCMCTV13A
VarumärkeCarroll & Meynell
287,45 kr
Each
Enheter
- - - - - - - - - - - - - -
RS-artikelnummer 804-0788
Tillv. art.nr1SNA166578R0100
VarumärkeEssailec
177,40 kr
Each
Enheter
- - - - - - - - - 49mm 73mm 30mm - -
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