SF3 NAIS [Nais(Matsushita Electric Works)], SF3 Datasheet
SF3
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SF3 Summary of contents
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... Form A 2 Form 12, 18, 21 Form A 1 Form B 24, 36, 48 Form A 4 Form B UL/CSA, TÜV, SEV approved type is standard (SF2, SF4) TÜV approved type is standard (SF3) 258 POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation FEATURES • ...
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... Nominal Part No. arrangement voltage SF2-DC5V 5 SF2-DC9V 9 SF2-DC12V 12 SF2-DC18V 18 SF2 SF2-DC21V 21 SF2-DC24V 24 SF2-DC36V 36 SF2-DC48V 48 SF2-DC60V 60 SF3-DC5V 5 SF3-DC9V 9 SF3-DC12V 12 SF3-DC18V 18 SF3 SF3-DC21V 21 SF3-DC24V 24 SF3-DC36V 36 SF3-DC48V 48 SF3-DC60V 60 SF4-DC5V 5 SF4-DC9V 9 SF4-DC12V 12 SF4-DC18V 18 SF4 SF4-DC21V 21 SF4-DC24V 24 SF4-DC36V 36 SF4-DC48V 48 SF4-DC60V 60 DIMENSIONS 1) SF2 25.0 .984 7.62 .300 Pick-up Drop-out ...
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... SF 2) SF3 25.0 .984 7.62 .300 3) SF4 33 0.3 1.299 .012 7.62 .300 REFERENCE DATA 1. Operate/release time Operate time 20 Max. x Min. 10 Max. Release time x Min 100 110 120 Coil applied voltage, %V 260 16 0.3 .630 .012 0.5 .020 3.5 0.3 12.7 12.7 12.7 .138 .012 5.08 .500 .500 .500 .200 53.3 0.3 2.098 .012 ...
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SAFETY STRUCTURE OF SF RELAYS This SF relay design ensures that subsequent operations shut down and can automatically return to a safe state when the SF relay suffers overloading and other circuit abnormalities (unforeseen 1. Forced operation method (2a2b, 3a1b, ...
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SF THE OPERATION OF SF RELAYS (when contacts are welded) SF relays work to maintain a normal operating state even when overloading or short-circuit currents occur also easy to include weld detection circuits and safety circuits in the ...
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Type Form “b” Contact Weld If the form “b” contact (No. 3) welds, the armature becomes non-operational, the contact gaps at the three form “a” contacts are maintained at greater than 0.5 mm .020 No.4 No.1 No.3 No.2 ...
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SF 3) 4a4b Type Internal Contacts Weld If the internal contacts (nos and 7) weld, the armature becomes non-operational and the contact gaps of each of the four form “a” contacts are maintained at greater than 0.5 ...