IEC 61643-321 Testing

Components for low-voltage surge protective devices – Part 321: Specifications for avalanche breakdown diode (ABD)

IEC 61643-321 Scope:

IEC 61643 321 and EN 61643 321 testing is applicable to avalanche breakdown diodes (ABDs) which represent one type of surge protective device component (hereinafter referred to as SPDC) used in the design and construction of surge protective devices connected to low-voltage power distribution systems, transmission, and signaling networks. Test specifications in this standard are for single ABDs consisting of two terminals. However, multiple ABDs may be assembled within a single package defined as a diode array. Each diode within the array can be tested to this specification.

IEC 61643-321 testing contains a series of test criteria for determining the electrical characteristics of the ABD. From the standard test methods described herein, the performance characteristics and ratings of the ABD can be verified or established for specific packaged designs.

Keystone Compliance assists manufacturers with IEC 61643-321 and EN 61643-321 test compliance. Please contact us for more information on how Keystone Compliance can assist you with identifying and fulfilling your IEC 61643-321 test lab needs.

Related Standards:

IEC 61643-11 Surge protective devices connected to low-voltage power systems – Requirements and test methods

IEC 61643-12 Surge protective devices connected to low-voltage power distribution systems – Selection and application principles

IEC 61643-21 Surge protective devices connected to telecommunications and signaling networks – Performance requirements and testing methods

IEC 61643-22 Surge protective devices connected to telecommunications and signaling networks – Selection and application principles

IEC 61643-311 Performance requirements and test circuits for gas discharge tubes (GDT)

IEC 61643-312 Selection and application principles for gas discharge tubes

IEC 61643-331 Specification for metal oxide varistors (MOV)

IEC 61643-341 Specification for thyristor surge suppressors (TSS)