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Residual current blocks

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Residual current block for MCB series HMxxxx 3P + N 125A / 0.3-1A Type AC BTC480E Hager

Residual current block for MCB series HMxxxx 3P + N 125A / 0.3-1A Type AC BTC480E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€130.88 +VAT
PLN 616.70
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 4P 125A, adjustable HBA126H Hager

Differential-current block. 4P 125A, adjustable HBA126H Hager

Elhurt Plus Sp. z o.o. Sp. K.
€372.17 +VAT
PLN 1,753.64
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Residual current block for MCB series HMxxxx 1P + N 125A / 0.3-1A Type AC BTC280E Hager

Residual current block for MCB series HMxxxx 1P + N 125A / 0.3-1A Type AC BTC280E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€330.40 +VAT
PLN 1,556.83
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 4P 160A, HBB161H Hager adjustable

Differential-current block. 4P 160A, HBB161H Hager adjustable

Elhurt Plus Sp. z o.o. Sp. K.
€455.45 +VAT
PLN 2,146.05
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Short-time residual current block for MCB series HMxxxx 2P + N 125A / 30mA Type A-HI BDH380E Hager

Short-time residual current block for MCB series HMxxxx 2P + N 125A / 30mA Type A-HI BDH380E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€218.37 +VAT
PLN 1,028.92
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 4P 125A, without regul.HBA128H Hager

Differential-current block. 4P 125A, without regul.HBA128H Hager

Elhurt Plus Sp. z o.o. Sp. K.
€347.82 +VAT
PLN 1,638.90
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Short-time residual current block for MCB HMxxxx 3P + N 125A / 0.3-1A Type A-HI BTH480E Hager

Short-time residual current block for MCB HMxxxx 3P + N 125A / 0.3-1A Type A-HI BTH480E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€171.70 +VAT
PLN 809.04
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Short-time residual current block for MCB series HMxxxx 3P + N 125A / 30mA Type A-HI BDH480E Hager

Short-time residual current block for MCB series HMxxxx 3P + N 125A / 30mA Type A-HI BDH480E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€261.47 +VAT
PLN 1,232.02
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Residual current block for MCB series HMxxxx 3P + N 125A / 30mA Type AC BDC480E Hager

Residual current block for MCB series HMxxxx 3P + N 125A / 30mA Type AC BDC480E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€261.47 +VAT
PLN 1,232.02
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 4P 160A, adjustable HBA161H Hager

Differential-current block. 4P 160A, adjustable HBA161H Hager

Elhurt Plus Sp. z o.o. Sp. K.
€484.20 +VAT
PLN 2,281.50
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Short-time residual current block for MCB HMxxxx 3P + N 125A / 300mA Type A-HI BFH480E Hager

Short-time residual current block for MCB HMxxxx 3P + N 125A / 300mA Type A-HI BFH480E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€198.51 +VAT
PLN 935.38
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 3P 125A, adjustable HBA125H Hager

Differential-current block. 3P 125A, adjustable HBA125H Hager

Elhurt Plus Sp. z o.o. Sp. K.
€331.49 +VAT
PLN 1,561.96
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 4P 400A, HBD401H Hager adjustable

Differential-current block. 4P 400A, HBD401H Hager adjustable

Elhurt Plus Sp. z o.o. Sp. K.
€972.60 +VAT
PLN 4,582.80
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 3P 125A, without regul.HBA127H Hager

Differential-current block. 3P 125A, without regul.HBA127H Hager

Elhurt Plus Sp. z o.o. Sp. K.
€289.66 +VAT
PLN 1,364.86
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Residual current block for MCB series HMxxxx 1P + N 125A / 30mA Type AC BDC280E Hager

Residual current block for MCB series HMxxxx 1P + N 125A / 30mA Type AC BDC280E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€174.64 +VAT
PLN 822.88
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Short-time residual current block for MCB HMxxxx 2P + N 125A / 0.3-1A Type A-HI BTH380E Hager

Short-time residual current block for MCB HMxxxx 2P + N 125A / 0.3-1A Type A-HI BTH380E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€151.70 +VAT
PLN 714.80
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Short-time residual current block for MCB HMxxxx 1P + N 125A / 0.3-1A Type A-HI BTH280E Hager

Short-time residual current block for MCB HMxxxx 1P + N 125A / 0.3-1A Type A-HI BTH280E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€95.27 +VAT
PLN 448.89
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Residual current block for MCB series HMxxxx 2P + N 125A / 30mA Type AC BDC380E Hager

Residual current block for MCB series HMxxxx 2P + N 125A / 30mA Type AC BDC380E Hager

Elhurt Plus Sp. z o.o. Sp. K.
€218.37 +VAT
PLN 1,028.92
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 4P 250A, HBB251H Hager adjustable

Differential-current block. 4P 250A, HBB251H Hager adjustable

Elhurt Plus Sp. z o.o. Sp. K.
€519.82 +VAT
PLN 2,449.35
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Differential-current block. 4P 630A, HBD631H Hager adjustable

Differential-current block. 4P 630A, HBD631H Hager adjustable

Elhurt Plus Sp. z o.o. Sp. K.
€1,394.24 +VAT
PLN 6,569.54
  • Manufacturer: Hager
Supplier
Elhurt Plus Sp. z o.o. Sp. K.
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Residual current blocks

Residual current blocks are electrical devices that allow an electrician to quickly and easily implement a system consisting of a residual current device and a fuse. The resulting set protects electric circuits against electric shock as well as the effects of short circuits and overloads.

Protection against electric shock

Residual current device (RCD), the basic element of a residual current block, has been designed in such a way as to protect human health and life. In the event of an electric shock, it immediately cuts off the power supply, often saving a person from death. Currently, differentials are used in both industrial and domestic installations. In the latter case, the RCDs operate on all electrical circuits installed in the apartment. In addition to protection against electric shocks , RCDs also function as fire protection. In the event of damage to the insulation of the device connected to the installation or its circuits - the differential interrupts the power supply, thus preventing not only the destruction of the cable or the receiver, but also fire.

Protection against the effects of short circuits and overloads

Fuses are responsible for protection against the effects of short circuits and overloads , collectively referred to as overcurrents.

Residual current blocks for circuit breakers

In modular differential blocks, the function of fuses is performed by overcurrent circuit breakers (so-called "es", mounted on the poles of these blocks). Miniature circuit breakers used for installation in modular blocks are also implemented as modular. Designed for installation on a TH35 rail, they are designed for maximum voltages up to 440 V AC, rated currents up to 125 A and breaking currents of 25 kA. Their time characteristics are marked with letters from A to E and further K, L, S, Z. In general-purpose electrical installations, overcurrent switches with B (lighting circuits and sockets) and C (discharge lamps, induction motors) characteristics are most often used. The lighting circuits are usually secured by an electrician with B 6A and B 10A "es", and sockets with B 16A switches.

Residual current blocks for power fuses

Residual current blocks are implemented by manufacturers of electrical apparatus also as cooperating with the so-called power fuses. These are protections that will trip in the event of overloads. Due to the excessive current flowing through the fuse for a certain period of time, the fuse element (conductor) heats up and then melts, disconnecting the circuit. Power fuses are characterized by the so-called inverse time-current characteristic: the higher the overcurrent, the shorter the break time delay. After a single actuation, the fuse link is destroyed and must be replaced with a new one to restore the fuse's ability to function as intended.

Apparatus EATON, Legrand and Schneider - excellent quality and many possibilities

Modular residual current blocks offered by leading manufacturers of electrical equipment and devices such as EATON, Legrand or Schneider , were created to meet the needs of installers. They facilitate assembly, enabling quick installation of the switch on the poles of the block. When choosing an overcurrent circuit breaker from a wide range of manufacturers, the electrician must of course remember to select the appropriate device. It takes into account, among others maximum allowed current leakage, amperage and number of phases. The blocks are implemented as 2, 3 and 4 poles, which corresponds to a wiring arrangement with cores:

  1. phase and neutral (1 pole),
  2. two phase and neutral (3 poles),
  3. three phase and neutral (4 poles).

Most brands known on the market of electric apparatus also produce residual current blocks for power fuses.