Manufacturers
SP23-20K440V Mersen Type 2+3 1P 400V Replacement Cartridge
SKU
83230004
Special Price
£24.13
£20.11
Regular Price
£30.17
Available at LED Controls the Mersen Type 2+3 surge protector replacement cartridge SP23-20K440V has 1 Pole and a working voltage of 400V, a maximum continuous voltage limit of 440 volts and a nominal discharge current of 10Ka. These units should be replaced once the indicator on the front shows red.
These cartridges are easily replaceable as you only have to pull on the old cartridge to remove it and push in the replacement.
| Packed Quantity | 1 |
|---|---|
| Product Image | For Illustration Purposes Only |
| Manufacturer | Mersen |
| Number of Poles | 1 pole |
| Voltage | 400V |
| Maximum Continuous Voltage | 440V |
| Nominal Discharge Current | 10Ka |
| Alternative Product SKU | SP23-20K440V |
| Product Lead Time | Standard Delivery 7-10 Days |
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Protection system of coordinated stages: Type 1, 2 and 3 SPDs
The SPDs of a surge protection system must be able to withstand the discharged current and provide a Ures level (residua l voltage) lower than the Ue peak voltage that the equipment can withstand. Most of the times it is not possible to achieve this with just one SPD, especially because the intensity of the surge is not known, and because of the induction of overvoltages when conductors exceed 10m.
The optimal system of protection is the 3-STEP approach, in which successive stages are combined in the performance of high discharge capacity devices and devices with an optimal voltage protection level (low). This is addressed by the definition of "Types" or "Classes" of SPDs according to the type of transient pulses to which each protected zone in the installation is subject to.
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