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SF3-DC5V Datasheet(PDF) 1 Page - Nais(Matsushita Electric Works) |
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SF3-DC5V Datasheet(HTML) 1 Page - Nais(Matsushita Electric Works) |
1 / 7 page 258 SF POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation SF-RELAYS (SF3 pending) (SF3 pending) (SF3 pending) π FEATURES • Forced operation contacts (2 Form A 2 Form B, 3 Form A 1 Form B) N.O. and N.C. side contacts are connected through a card so that one interacts with the other in movement. In case of a contact welding, the other keeps a min. 0.5mm .020inch contact gap. • Independent operation contacts (4 Form A 4 Form B) Each pair of contacts is free from the main armature and is independent from each other. So if a N.O. pair of contacts are welded, the other 3 N.O. contacts are not effected (operate properly) That enables to plan a circuit to detect welding or go back to the beginning condition. • Separated chamber structure (2 Form A 2 Form B, 3 Form A 1 Form B, 4 Form A 4 Form B) N.O. and N.C. side contacts are put in each own space surrounded with a card and a body-separater. That prevents short circuit between contacts, which is caused by their springs welding or damaged. • UL/CSA, TÜV, SEV approved (UL/CSA, SEV of SF3 pending) 25.0 .984 16.5 ±0.3 .650 ±.012 53.3 ±0.3 2.098 ±.012 25.0 .984 16.5 ±0.3 .650 ±.012 53.3 ±0.3 2.098 ±.012 33 ±0.3 1.299 ±.012 16.5 ±0.3 .650 ±.012 53.3 ±0.3 2.098 ±.012 mm inch SPECIFICATIONS ORDERING INFORMATION Ex. SF 2 DC 12 V Contact arrangement Coil voltage DC 5, 9, 12, 18, 21, 24, 36, 48, 60 V 2: 2 Form A 2 Form B 3: 3 Form A 1 Form B 4: 4 Form A 4 Form B UL/CSA, TÜV, SEV approved type is standard (SF2, SF4) TÜV approved type is standard (SF3) TYPICAL APPLICATIONS • Signal • Escalator • Elevator • Medical Instruments • Railway • Factory Automation Remarks * Specifications will vary with foreign standards certification ratings. *1 More than 105 operations when applying the nominal switching capacity to one side of contact pairs of each Form A contact and Form B contact *2 Measurement at same location as " Initial breakdown voltage " section *3 Detection current: 10mA *4 Excluding contact bounce time *5 Half-wave pulse of sine wave: 11ms; detection time: 10 µs *6 Half-wave pulse of sine wave: 6ms *7 Detection time: 10 µs *8 Refer to 5. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT (Page 61). Contact Type SF2 SF3 SF4 Arrangement 2 Form A 2 Form B 3 Form A 1 Form B 4 Form A 4 Form B Initial contact resistance, max. (By voltage drop 6 V DC 1 A) 30 m Ω Contact material Gold-flashed silver alloy Rating (resistive) Nominal switching capacity 6 A 250 V AC, 6 A 30 V DC Max. switching power 1,500 VA, 180 W Max. switching voltage 30 V DC, 440 V AC Max. carrying current 6 A DC, AC Expected life (min. operations) Mechanical (at 180 cpm) (resistive) 107 Electrical (at 20 cpm) 3 ×104*1 105 Coil (at 25°C 77°F) Nominal operating power 500 mW Characteristics (at 25°C 77°F, 50% Relative humidity) SF2 SF3 SF4 Max. operating speed 180 cpm (at nominal voltage) Initial insulation resistance*2 Min. 1,000 M Ω at 500 V DC Initial break- down voltage*3 Between con- tact sets 2,500 Vrms Between open contacts 2,500 Vrms Between con- tact and coil 2,500 Vrms Operate time*4 (at nominal voltage) Approx. 17 ms Approx. 18 ms Release time (without diode)*4 (at nominal voltage) Approx. 7 ms Approx. 6 ms Temperature rise (at nominal voltage) Max. 45 °C with nominal coil voltage and at 6 A switching current Shock resistance Functional*5 Min. 294 m/s2 {30 G} Destructive*5 Min. 980 m/s2 {100 G} Vibration resistance Functional*7 117.6 m/s2 {12 G}, 10 to 55 Hz at double amplitude of 2 mm Destructive 117.6 m/s2 {12 G}, 10 to 55 Hz at double amplitude of 2 mm Conditions for oper- ation, transport and storage*8 (Not freezing and condensing at low temperature) Ambient temp. –40 °C to +70°C –40°F to +158°F Humidity 5 to 85% R.H. Unit weight 37 g 1.31 oz 47 g 1.66 oz |
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