Compact Relay Family with Forcibly Guided Contacts FEATURES 4-pole (2 Form A 2 Form B, 3 Form A 1 Form B) 6-pole (4 Form A 2 Form B, 5 Form A 1 Form B) SF-Y RELAYS contact NC3 and coil) 1. Forcibly guided contact structure Relay complies with IEC 61810-3, Type A Equipped with forcibly guided contact structure that enables detection of contact welding and construction of safety circuit. 2. Small size 3. Different contact configurations: Type L W H (mm inch) 2 Form A 2 Form B, 3 Form A 1 Form B 31.0 28.6 14.5 1.220 1.126 .571 4 Form A 2 Form B, 5 Form A 1 Form B 39.0 28.6 14.5 1.535 1.126 .571 TYPICAL APPLICATIONS 1. Emergency stop switches 2. Machine safety engineering 3. Safety control units 4. Automation technology 5. Elevators 6. Escalators 7. Overcurrent protection with monitor contact 4. Low profile: 14.5 mm .571 inch 5. Insulation according to EN 60664-1: Overvoltage category III, Pollution degree 2, 250V AC * Reinforced insulation: Clearance and creepage 5.5 mm .217 inch (between all contacts and between contact NO4 and coil) * Basic insulation: Clearance 3 mm .118 inch and creepage 4 mm .157 inch (between all contacts and between ORDERING INFORMATION SFY Contact arrangement 2: 2 Form A 2 Form B 3: 3 Form A 1 Form B 4: 4 Form A 2 Form B 5: 5 Form A 1 Form B Nominal coil voltage DC 5, 12, 18, 21, 24V Notes: Please consult us about other coil voltages. Gold-clad contact type available on request. ds_61411_en_sfy: 160117D 1 SF-Y TYPES Contact arrangement 2 Form A 2 Form B 4-pole 3 Form A 1 Form B 4 Form A 2 Form B 6-pole 5 Form A 1 Form B Nominal coil voltage Part No. 5 V DC SFY2-DC5V 12 V DC SFY2-DC12V 18 V DC SFY2-DC18V 21 V DC SFY2-DC21V 24 V DC SFY2-DC24V 5 V DC SFY3-DC5V 12 V DC SFY3-DC12V 18 V DC SFY3-DC18V 21 V DC SFY3-DC21V 24 V DC SFY3-DC24V 5 V DC SFY4-DC5V 12 V DC SFY4-DC12V 18 V DC SFY4-DC18V 21 V DC SFY4-DC21V 24 V DC SFY4-DC24V 5 V DC SFY5-DC5V 12 V DC SFY5-DC12V 18 V DC SFY5-DC18V 21 V DC SFY5-DC21V 24 V DC SFY5-DC24V Standard packing: Tube 20 pcs. RATING 1. Coil data Contact arrangement 2 Form A 2 Form B 4-pole 3 Form A 1 Form B Nominal coil voltage 5 Form A 1 Form B 2 Nominal operating current [10%] (at 20C 68F) Coil resistance [10%] (at 20C 68F) 5V DC 134mA 38 56mA 215 18V DC 37mA 483 21V DC 32mA 666 24V DC 28mA 864 5V DC 134mA 38 12V DC 56mA 215 18V DC 37mA 483 21V DC 32mA 666 28mA 864 134mA 38 12V DC 56mA 215 18V DC 37mA 483 21V DC 32mA 666 24V DC 28mA 864 5V DC 134mA 38 12V DC 56mA 215 18V DC 37mA 483 21V DC 32mA 666 24V DC 28mA 864 5V DC 6-pole Drop-out voltage (at 20C 68F) 12V DC 24V DC 4 Form A 2 Form B Pick-up voltage (at 20C 68F) 75%V or less of nominal voltage (Initial) 15%V or more of nominal voltage (Initial) Nominal operating power (at 20C 68F) Max. applied voltage (at 20C 68F) 670mW 120%V of nominal voltage ds_61411_en_sfy: 160117D SF-Y 2. Specifications Characteristics Contact Rating Electrical characteristics Specifications Item 4-pole 2 Form A 2 Form B, 3 Form A 1 Form B Forcibly guided contacts All contacts: Type A, IEC 61810-3 Contact resistance (Initial) Max. 100 m (By voltage drop 6 V DC 1A) Contact material Gold-flashed AgNi alloy type Nominal switching capacity (resistive load) 6A 250V AC, 6A 30V DC Max. switching power (resistive load) 1,500VA, 180W Max. switching voltage 250V AC, 30V DC Max. switching current 6A 10mA 10V DC Insulation resistance (Initial) Min. 1,000M (at 500V DC) Measurement at same location as "Breakdown voltage" section. Between open contacts Breakdown Between contact sets voltage (Initial) Between contact and coil 1,500 Vrms for 1 min. (Detection current: 10mA) 4,000 Vrms for 1 min. (Detection current: 10mA) NC3: 2,500 Vrms for 1min; NO4: 4,000 Vrms for 1min (Detection current: 10mA) Coil holding voltage*4 Min. 60%V (Initial, at 20C 68F) Operate time (at 20C 68F) Max. 20ms (Nominal coil voltage applied to the coil, excluding contact bounce time) Max. 10ms (Nominal coil voltage applied to the coil, excluding contact bounce time) (without diode) Shock resistance Functional Min. 200 m/s2 {Min. 20G} (Half-wave pulse of sine wave: 11 ms; detection time: 10s) Destructive Min. 1,000 m/s2 (Half-wave pulse of sine wave: 6 ms) Vibration resistance Functional 10 to 55 Hz at double amplitude of 1.5 mm .059 inch (Detection time: 10s) Destructive 10 to 55 Hz at double amplitude of 1.5 mm .059 inch Min. 107 (at 180 times/min.) Mechanical Expected life Electrical 250 V AC 6 A resistive load: Min. 105 (at 20 times/min.) Degree of protection RT III*3 Ambient temperature: -40C to +70C -40F to +158F Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature) Conditions for operation, transport and storage*2 Conditions 4 Form A 2 Form B, 5 Form A 1 Form B Min. switching capacity (Reference value)*1 Release time (at 20C 68F) Mechanical characteristics 6-pole Contact arrangement Max. Operating speed 20 times/min. (at nominal voltage) Unit weight Approx. 19 g .67 oz Approx. 23 g .81 oz Notes: *1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load. *2. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage conditions in NOTES see page 7. *3. According to EN 61810-1:2010, table 2. Characteristic is sealed construction with terminals, case and base sealed shut with sealing resin. Construction is designed to prevent seeping of flux when soldering and cleaning fluid when cleaning. Harmful substances on the contacts are removed by gas purging before sealing with. *4. Coil holding voltage is the coil voltage after 100 ms from the applied nominal voltage. Important: Relay characteristics may be influenced by: * strong external magnetic fields * magnetic conductive materials near the relay * narrow top-to-top mounting (printed surface to printed surface) Insulation 2 Form A 2 Form B NC2 NC3 Coil NO4 NO5 4 3 6 5 1 2 8 7 9 10 3 Form A 1 Form B NO2 3 NC3 5 Coil 1 NO4 7 NO5 4 6 4 Form A 2 Form B 5 Form A 1 Form B NO1 NO1 9 10 5 Coil 1 NO4 7 NO5 NO6 14 4 3 NC3 2 8 13 NC2 2 10 12 Coil NO4 8 9 11 NC3 6 13 NO2 5 4 6 1 2 7 NO5 NO6 14 3 8 10 9 11 12 = Reinforced insulation: overvoltage category III, pollution degree 2, 250V AC (Clearance and creepage distance is 5.5 mm .217 inch or more between all contacts. Also, there is 5.5 mm .217 inch or more clearance and creepage distance even between contact NO4 and coil.) = Basic insulation: overvoltage category III, pollution degree 3, 250V AC (The clearance is 3 mm .118 inch or more between all contacts and the creepage distance is 4 mm .157 inch or more. Even between contact NC3 and coil, the clearance is 3 mm .118 inch or more and the creepage distance is 4 mm .157 inch or more.) ds_61411_en_sfy: 160117D 3 SF-Y Other contact gaps when contacts are welded The table below shows the state of the other contacts. In case of form "NO" contact weld the coil applied voltage is 0 V. In case of form "NC" contact weld the coil applied voltage is nominal. <2 Form A 2 Form B> State of other contacts 3-4 (NC) Welded terminal No. 5-6 (NC) 7-8 (NO) 9-10 (NO) 3-4 (NC) >0.5 >0.5 5-6 (NC) >0.5 >0.5 7-8 (NO) >0.5 >0.5 9-10 (NO) >0.5 >0.5 3-4 (NC) 5-6 (NO) 7-8 (NO) 9-10 (NO) >0.5 >0.5 >0.5 5-6 (NC) 7-8 (NO) 9-10 (NO) 11-12 (NO) 13-14 (NO) 3-4 (NC) >0.5 >0.5 >0.5 >0.5 5-6 (NC) >0.5 >0.5 >0.5 >0.5 <3 Form A 1 Form B> State of other contacts 3-4 (NC) Welded terminal No. 5-6 (NO) >0.5 7-8 (NO) >0.5 9-10 (NO) >0.5 <4 Form A 2 Form B> State of other contacts 3-4 (NC) Welded terminal No. 7-8 (NO) >0.5 >0.5 9-10 (NO) >0.5 >0.5 11-12 (NO) >0.5 >0.5 13-14 (NO) >0.5 >0.5 3-4 (NC) 5-6 (NO) 7-8 (NO) 9-10 (NO) 11-12 (NO) 13-14 (NO) >0.5 >0.5 >0.5 >0.5 >0.5 <5 Form A 1 Form B> State of other contacts 3-4 (NC) 5-6 (NO) Welded terminal No. >0.5 7-8 (NO) >0.5 9-10 (NO) >0.5 11-12 (NO) >0.5 13-14 (NO) >0.5 >0.5: contact gap is kept at min. 0.5 mm .020 inch Empty cells: either ON or OFF Note: Contact gaps are shown at the initial state. If the contact transfer is caused by load switching, it is necessary to check the actual loading. 4 ds_61411_en_sfy: 160117D SF-Y DIMENSIONS mm inch Download from our Web site. CAD Data 1. 4-pole (2 Form A 2 Form B, 3 Form A 1 Form B) External dimensions CAD Data 28.6 1.126 31 1.220 0.3 .012 14.5 .571 3.5 .138 1 (x8) .039 (x8) 0.5 (x2) .020 (x2) 0.5 (x8) .019 (x8) 2.8 .110 6.25 .246 10.5 .413 General tolerance: 0.3 .012 6.25 .246 3.3 .130 10.65 .419 5.15 .203 4.3 .169 4.3 .169 Projection mode: 3 2 7 (2 Form A 2 Form B) 6 1 9 6.25 .246 2 7 8 10 4 5 6 1 9 3 4 5 PC board pattern (Bottom view) 8 10 4.3 .169 6.25 .246 7 .29 .6 9 5.15 .203 (3 Form A 1 Form B) 10.65 .419 4.3 .169 10.5 .413 1.4 .055 dia., typical value for manual insertion 1.6 .063 dia., typical value for automatic insertion Schematic (Bottom view) Tolerance: 0.1 .004 ds_61411_en_sfy: 160117D 5 SF-Y 2. 6-pole (4 Form A 2 Form B, 5 Form A 1 Form B) External dimensions CAD Data 28.6 1.126 39 1.535 0.3 .012 14.5 .571 3.5 .138 1 (x12) .039 (x12) 0.5 (x12) .019 (x12) 6.25 .246 2.8 .110 10.5 .413 6.25 .246 0.5 (x2) .020 (x2) 3 .118 General tolerance: 0.3 .012 10.65 .419 4.3 .169 4.3 .169 5.15 .203 4.3 .169 4.3 .169 Projection mode: 13 3 5 3 2 7 7 9 10 12 (4 Form A 2 Form B) 6.25 .246 6 1 8 11 14 4 5 6 1 9 13 14 4 PC board pattern (Bottom view) 2 4.3 .169 4.3 .169 8 5.15 .203 10 11 12 (5 Form A 1 Form B) 6.25 .246 7 .29 .6 9 10.65 .419 4.3 .169 4.3 .169 10.5 .413 1.4 .055 dia., typical value for manual insertion 1.6 .063 dia., typical value for automatic insertion Schematic (Bottom view) Tolerance: 0.1 .004 REFERENCE DATA Coil voltage characteristics 6 ds_61411_en_sfy: 160117D SF-Y SAFETY STANDARDS Certification authority File No. Rating Comment UL/C-UL E120782 6A 250V AC, general use, 100Kops 6A 30V DC, general use, 100Kops, B300, R300 (pilot duty) TUV Cert. no: 968/EZ 535. 00/12 6A 230V AC (cos=1.0) 70C 158F, 6A 24V DC resistive Test procedure A (Group Mounting) NOTES 1. Coil operating power Pure DC current should be applied to the coil. The wave form should be rectangular. If it includes ripple, the ripple factor should be less than 5%. However, check it with the actual circuit since the characteristics may be slightly different. 2. Coil connection When connecting coils, refer to the wiring diagram to prevent misoperation or malfunction. 3. Soldering When using automatic soldering, the following conditions are recommended 1) Preheating: 120C 248F, within 120 sec (PC board solder surface) 2) Soldering: 260C5C 500F41F, within 6 sec For Cautions for Use, see Relay Technical Information. ds_61411_en_sfy: 160117D 7