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The most complete cycle of tests and comparisons of RBUZ D2 and WELROK D2 voltage relays: response when voltage increases and decreases, as well as measuring their response time, relay durability at 440 (V), heating test at maximum current of 80 (A), thermal protection test and much more. For convenience, I have divided all types of tests into episodes, see below. -------------------- For those wishing to support the author of the channel Sberbank: 4276 1609 7722 1952 Tinkoff: 4377 7237 4810 0884 Dmitry Andreevich T. -------------------- Episodes: 00:00 Introduction 03:42 Relay operation at nominal voltage 06:15 Relay power consumption 07:28 Relay operation when voltage is exceeded 08:28 Relay response time when voltage is exceeded 13:36 Relay turn-on time after an accident (AR mode) 15:49 Relay operation when voltage is reduced 16:53 Relay response time when voltage is reduced 19:02 Checking relay operation at minimum voltage level 21:10 Checking relay operation at maximum voltage level (440 V) 25:50 Disassembling the relay 30:11 Checking the relay with nominal and maximum currents (63 A and 80 A) 34:33 Switching the relay at a current of 80 A 35:33 Checking the relay thermal protection 38:41 Checking the relay after the tests 41:01 State of the executive relay after the tests 41:56 Conclusions and findings -------------------- Similar videos on the channel: 1. Voltage relay RBUZ D2-63. My favorite! • Voltage relay RBUZ D2-63. My favorite! 2. Voltage control relay SR-721-1 (Euroavtomatika). Connection, setup and testing • Voltage control relay SR-721-1 (Ev... 3. UZM-50Ts (Meander). Not perfect yet! Full review and testing • UZM-50Ts (Meander). Not perfect yet! By... 4. Voltage relay VPD1-60 (TOMZN) for 500 rubles. Review and testing • Voltage relay VPD1-60 (TOMZN) for 50... 5. Voltage relay Easy 9 (EZ9C1240). Full disassembly and testing • Voltage relay Easy 9 (EZ9C1240). By... 6. Sad outcome! Voltage relay RV-5A (EKF) • Sad outcome! Voltage relay RV-5... 7. Response time of voltage relays (Easy 9, UZM-50Ts, SR-721-1, RBUZ D2, TOVPD1, OUVR-1, UZDP63-1) • Voltage relay response time (E... -------------------- Website: http://zametkielectrika.ru Instagram: / zametkielectrika Our Electricians Chat https://t.me/chat_electrikov VK Group: https://vk.com/public34691582 -------------------- Thank you for your attention. Until next time. Best regards, Dmitry.