IEC 61643-11:2011 Low-voltage surge protective devices— Part 11: Surge protective devices connected to low-voltage power systems–Requirements and test methods

This International Standard IEC 61643-11:2011 specifies the general requirements for low‑voltage surge protective devices (SPDs) connected to low‑voltage power distribution systems. It defines terms, classification, operating conditions, ratings, marking, and functional characteristics of SPDs intended to protect electrical equipment against transient overvoltages, establishing basic technical criteria for their design and application.

The standard also sets out corresponding test methods and performance criteria to verify the compliance of SPDs, including tests for impulse discharge capacity, voltage protection level, temporary overvoltage endurance, temperature rise, resistance to ageing, and short‑circuit withstand capability. These test procedures are applicable for type tests, routine tests, and quality assessment of SPDs used in low‑voltage power systems worldwide.

LISUN supplies the fully test solutions for the following IEC 61643-11:2011, please see the below excel table:

IEC 61643-11:2011 Clause and Subject	LISUN MODEL
3.1.20 1,2/50 voltage impulse	SUG255
8.1.3 Voltage impulse used for class I and Il sparkover tests
8.3.3.2 Front-of-wave sparkover voltage
3.1.21 8/20 current impulse	SUGC-C5KV10KA
8.1.1 Impulse discharge current used for class I additional duty test
8.3.3.1 Residual voltage with 8/20 current impulses
7.2.6 Insulation resistance	WB2681A
8.3.6 Insulation resistance
7.4.1 Protection provided by enclosure (IP code) 8.5.1 Resistance to ingress of solid objects and to harmful ingress of water	JL-X
	SC-015
8.1.4 Combin ation wave used for class Ill tests	SG61000-5
8.3.3.3 Limiting vo ltage with the combination wave
8.7.3 Load-side surge withstand capability
8.3.1.1 The standard test finger (in accordance with IEC 60529)	SMT-529T
8.3.5.1 Temperature withstand test	GDJS-015B
8.5.2 Heat resistance
Annex F.4 Temperature cycle test
8.4.4.1 Impact test	IK01-06P
8.5.3 Ball pressure test	ZBP-T
8.5.4 Resistance to abnormal heat and fire	ZRS-3H
8.5.5 Tracking resistance	TTC-1
Annex F.1 Accelerated aging test with UV radiation	UV-263LS
Annex F.5 Verification of resistance to corrosion	YWX/Q-010

Tags：GDJS-015B , IK01-06P , JL-X , SC-015 , SG61000-5 , SMT-529T , SUG255 , SUGC-C5KV10KA , TTC-1 , UV-263LS , WB2681A , YWX/Q-010 , ZBP-T , ZRS-3H