RELAYS Panasonic

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Panasonic is part of a large worldwide groupselling relays and associated switching products under different brand names in different territories.The conditions of use in some territories may differ from those customary in Europe. In particular there are often major differences in regard to national and international specifications, such as UL, CSA, VDE, SEV, EVE, SEMKO, etc. Thus, when considering contact loads as stated in this catalogue (e.g. 10 A, 30 VDC for the SP relay) its hould be understood that these values are not necessarily an absolute maximum but tested ratings. Mostly the stated value has been tested for a certain life expectancy as stated by the manufacturer or the respective test house. Thus, under different conditions, the stated “maximum” may, in practice, be safely exceeded.

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Self-holding circuit, three safety circuits K1 K2 12 14 11 13 o CO 9 7 f l 16 1) 4) One contact welded, e. 9-10 K1. 15 16 2.g.g.g. The contacts 9-10, 12-11, and 14-13 interrupt the load. 7 16 8 15 K2 5 12 11 15 7 16 2. Condition contacts deenergized coil 5 7 K1 K2 9 1 n12 14 V /11 13 V 11 8 12 7 15 Condition contacts deenergized coil K1 K2 6 5 \ 9 14 10 13 11 Y 8 \ 7 v . K1 9 6 V10 K2 '1 16 11 15 Condition contacts deenergized coil K1 One contact welded, e.1. 9-10 and 12-11.SFN4D Failure modes, application examples 1) Feedback loop, Self-holding circuit, Safety circuit, Auxiliary contacts 1. 12-11 K2.g.g. Four safety circuits K1 K2 9 12 16 10 15 11 10 8 15 12 16 1) 4) (see wiring example, 591) Condition contacts deenergized coil One contact welded, e. 7-8 and 14-13. 12-11 K2.g. One contact welded, e.2. Condition contacts deenergized coil K1 K2 , - 5 7 / 9 '1 16 6 ,11 15 V / ~ 6 13 ( I10 8 15 5 16 [ 6 5 5 6 8 6 5 5 7 6 8 13 6 15 6 8 5 16 5 5 6 6 13 5 590 61408 sfn4d: 130312D . Condition contacts deenergized coil K1 K2 ' 7 16 8 / 10 11 15 /13 N,11 10 15 14 i 7 16 Both contacts one path are welded, e. A safety circuit needs two paths this failure mode. 9-10 K1. A safety circuit needs two paths this failure mode. The contacts 7-8, 12-11, and 14-13 interrupt the load. Two safety circuits K1 K 2 9 12 16 10 15 11 10 8 15 12 9 7 16 3) 4 (see wiring example, 591) Both contacts one path are welded, e

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