DELIXI · AC surge protective device
Product overview
The DELIXI CDYN range limits transient overvoltage in AC power distribution systems. The manufacturer reference distinguishes CDYN-I+II, CDYN-II and CDYN-III versions for coordinated surge protection. Select the class, pole arrangement, continuous operating voltage and matching backup protection for the actual installation.
Technical selection summary
| Brand and series | DELIXI ELECTRIC CDYN |
|---|---|
| Product type | AC surge protective device (SPD) |
| Referenced standards | GB/T 18802.1; IEC 61643-11 |
| Rated system voltage Uo | 230 V phase voltage; distinct from the maximum continuous operating voltage Uc |
| CDYN-I+II impulse reference | 10/350 μs Iimp: 12.5 or 15 kA; nominal discharge current In: 25 kA for either reference |
| CDYN-II discharge reference | 8/20 μs Imax: 20 / 40 / 65 / 80 / 120 / 160 kA; corresponding In: 10 / 20 / 30 / 40 / 60 / 80 kA |
| I+II and II pole / Uc references | 1P, 2P, 3P, 4P, 1P+N or 3P+N; Uc 275 / 385 / 440 V, selected for the exact version |
| CDYN-III terminal reference | 1P+N; Uc 320 V; combination-wave reference Uoc 10 kV / Isc 5 kA; Up 1.2 kV; built-in backup protection |
| Status indication | Check the matching version indicator; red indicates a failed module requiring replacement. |
| Degree of protection | IP20 |
| Remote indication | Optional signalling accessory for the applicable I+II / II version; confirm the required contacts. |
Iimp, Imax, In and the III-class Uoc/Isc references describe different tests and cannot be interchanged. Match Uc, protection level Up, pole arrangement and backup device to the exact CDYN suffix and supply-system earthing arrangement; do not substitute the DC CDYNEZ series.
Typical applications
- Main incoming switchboards with the matching I+II version
- Sub-distribution boards with the matching II version
- Terminal distribution boards using the III version
Specify your enquiry
For a focused quotation, include:
- Complete CDYN code, class and required quantity
- Pole arrangement, system voltage and earthing configuration
- Required Uc and Iimp or Imax/In rating
- Required protection level, backup device and remote indication
- Installation location and coordination with other SPD stages
