Elec­tro­mag­netic com­pat­i­bil­ity test­ing in EMC lab EN 6100033

EN 6100033:2008 Elec­tro­mag­netic com­pat­i­bil­ity (EMC) — Part 33: Lim­its –Lim­i­ta­tion of volt­age changes, volt­age fluc­tu­a­tions and flicker in pub­lic low-​voltage sup­ply sys­tems, for equip­ment with rated cur­rent ≤ 16 A per phase and not sub­ject to con­di­tional con­nec­tion (IEC 6100033:2008)

Inter­na­tional stan­dard EN 6100033:2008 is applic­a­ble to elec­tri­cal and elec­tronic equip­ment hav­ing an input cur­rent equal to or less than 16 A per phase, intended to be con­nected to pub­lic low-​voltage dis­tri­b­u­tion sys­tems of between 220 V and 250 V line to neu­tral at 50 Hz, and not sub­ject to con­di­tional con­nec­tion.

If equip­ment does not com­ply with the lim­its of EN 6100033:2008 when tested with the ref­er­ence imped­ance Zref , that is defined in EN 6100033:2008 clause 6.4, can be tested accord­ing to EN 61000311 Elec­tro­mag­netic com­pat­i­bil­ity (EMC) — Part 311: Lim­its — Lim­i­ta­tion of volt­age changes, volt­age fluc­tu­a­tions and flicker in pub­lic low-​voltage sup­ply sys­tems; Equip­ment with rated cur­rent ≤ 75 A and sub­ject to con­di­tional con­nec­tion.

Inter­na­tional stan­dard EN 6100033:2008 have no spe­cific over­all clas­si­fi­ca­tion of equip­ment.

Usu­ally prob­lems are expected for equip­ment such as: heaters, water boil­ers, ovens, wash­ing machines with­out elec­tronic reg­u­la­tion of cur­rent con­sump­tion.


Para­me­ter Limit Con­di­tions
Short-​term flicker indicator Pst 1.0
Long-​term flicker indicator Plt 0.65
Rel­a­tive volt­age change d(t) 3,3 % For more than 500ms
Rel­a­tive steady-​state volt­age change dc 3,3 %
Max­i­mum rel­a­tive volt­age change dmax 4% With­out addi­tional conditions
6% For equip­ment which is switched man­u­ally or switched auto­mat­i­cally more fre­quently than twice per day
7% For equip­ment which is attended whilst in use (hair dry­ers, vac­uum clean­ers, mix­ers, lawn mow­ers, elec­tric drills), or switched on auto­mat­i­cally, or is intended to be switched on man­u­ally, no more than twice per day

EMC test­ing

RF EMC DEVEL­OP­MENT pro­vides accred­ited EMC test­ing to reach Euro­pean mar­ket. We hold a long list of Euro­pean stan­dards for such indus­tries as– house­hold, indus­trial, auto­mo­tive, med­ical, tele­com, rail­way and aero­space. Our test lab­o­ra­tory is accred­ited by Euro­pean noti­fied bod­ies accord­ing to ISO17025. Save your time by try­ing to cou­ple EMC test­ing with other tests and CE cer­ti­fi­ca­tion needs (safety, envi­ron­men­tal, energy effi­ciency, performance).


Through our part­ners, noti­fied bod­ies in Euro­pean Union, RF EMC DEVEL­OP­MENT pro­vides cer­ti­fi­ca­tion ser­vices for man­u­fac­tur­ers, retail­ers, dis­trib­u­tors and sup­pli­ers to enter EU mar­ket. We pro­vide all ser­vices to cer­tifi­cate your prod­ucts in short time span– EMC test­ing, LVD test­ing, devel­op­ment for such prod­ucts as: light­ing equip­ment, auto­mo­tive, con­sumer elec­tron­ics, indus­trial elec­tronic and machin­ery, med­ical equip­ment, telecom­mu­ni­ca­tions and wood­work­ing equip­ment etc.

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