LF-G (ALFG) VDE Ideal for Solar inverter Compact size, 1 Form A 22A/31A Power Relay LF-G RELAYS (ALFG) FEATURES TYPICAL APPLICATIONS * High capacity High capacity control possible at 22A/ 31A (High capacity type) 250V AC rating in compact size: L: 15.7 W: 30.1 H: 23.3 mm L: .618 W: 1.185 H: .917 inch * Contact gap: 1.5 mm .059 inch Compliant with European photovoltaic standard (VDE0126). EN61810-1 certified: 2.5 kV surge breakdown voltage (between contacts) * Coil holding voltage contributes to saving energy of equipment The coil holding voltage can be reduced up to 35%V of the nominal coil voltage (Ambient temperature: 20C 68F). Power consumption at the lowest coil holding voltage: 170 mW equivalent *Coil holding voltage is the coil voltage after 100 ms from the applied nominal coil voltage. *When the ambient temperature during use is 85C 185F, make the coil holding voltage between 45% and 80%V of the nominal coil voltage. * High insulation resistance Creepage distance between contact and coil terminal: Min. 9.5 mm .354 inch Clearance distance between contact and coil terminal: Min. 6.5 mm .256 inch Surge breakdown voltage: 6 kV * Conforms to various safety standards UL, C-UL and VDE approved * Photovoltaic power generation systems (Solar inverter) * Uninterruptible Power Supplies (UPS) * Home appliances * Office equipment ORDERING INFORMATION ALFG P F LF-G relay Contact arrangement 1: 1 Form A Standard type (22A) 2: 1 Form A High capacity type (31A) Terminal shape P: PCB type Coil insulation class F: UL Class F Nominal coil voltage (DC) 09: 9V, 12: 12V, 18: 18V, 24: 24V Note: UL, C-UL and VDE approved type is standard. ds_61B12_en_lfg: 080711D 1 LF-G (ALFG) TYPES Contact arrangement Part No. Nominal coil voltage 1 Form A Standard type High capacity type 9V DC ALFG1PF09 ALFG2PF09 12V DC ALFG1PF12 ALFG2PF12 18V DC ALFG1PF18 ALFG2PF18 24V DC ALFG1PF24 ALFG2PF24 Standard packing: Carton: 50 pcs.; Case: 200 pcs. RATING Coil data Nominal coil voltage Pick-up voltage (at 20C 68F) (Initial) Drop-out voltage (at 20C 68F) (Initial) 9V DC 12V DC 18V DC 24V DC 70%V or less of nominal voltage 10%V or more of nominal voltage Nominal operating current [10%] (at 20C 68F) 115mA 117mA 78mA 59mA Coil resistance [10%] (at 20C 68F) Nominal operating power Max. allowable voltage (at 20C 68F) 58 103 230 410 1,400mW 120%V of nominal voltage Specifications Characteristics Contact Rating Electrical characteristics Item Arrangement Contact resistance (Initial) Contact material Nominal switching capacity Max. switching power Max. switching voltage Max. switching current Nominal operating power Min. switching capacity (Reference value)*1 Insulation resistance (Initial) Breakdown voltage Between open contacts (Initial) Between contact and coil Surge breakdown voltage*2 (Between contact and coil) Temperature rise*3 Coil holding voltage*4 Mechanical characteristics Expected life Conditions Unit weight Operate time (at 20C 68F) Release time (at 20C 68F) Functional Shock resistance Destructive Functional Vibration resistance Destructive Mechanical Resistive load Electrical Inductive load Conditions for operation, transport and storage*5 Specifications Standard type High capacity type 1 Form A Max. 100 m (By voltage drop 6 V DC 1A) AgSnO2 type 22A 250V AC 31A 250V AC 5,500VA 7,750VA 250V AC 22A (AC) 31A (AC) 1,400mW 100mA 5V DC Min. 1,000M (at 500V DC) Measurement at same location as "Breakdown voltage" section. 2,500 Vrms for 1 min. (Detection current: 10 mA) 4,000 Vrms for 1 min. (Detection current: 10 mA) 6,000 V (initial) Max. 95C 203F (By resistive method, nominal Max. 95C 203F (By resistive method, nominal coil voltage applied to the coil; contact carrying coil voltage applied to the coil; contact carrying current: 22A, at 60C 140F) current: 31A, at 60C 140F) Max. 70C 158F (By resistive method, 80%V Max. 70C 158F (By resistive method, 80%V of nominal coil voltage applied to the coil; of nominal coil voltage applied to the coil; contact carrying current: 22A, at 85C 185F) contact carrying current: 31A, at 85C 185F) 35 to 120%V (contact carrying current: 22A, 35 to 120%V (contact carrying current: 31A, at 20C 68F) at 20C 68F) 45 to 80%V (contact carrying current: 22A, 45 to 80%V (contact carrying current: 31A, at 85C 185F) at 85C 185F) Max. 20 ms (at nominal coil voltage excluding contact bounce time.) Max. 10 ms (at nominal coil voltage excluding contact bounce time, without diode) Min. 100 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10s.) Min. 1,000 m/s2 (Half-wave pulse of sine wave: 6 ms.) 10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10s.) 10 to 55 Hz at double amplitude of 1.5 mm Min. 106 (at 180 cpm) 22A 250V AC, Min. 3104 (at 20 cpm) -- 22A 250V AC (cos = 0.8), 31A 250V AC (cos = 0.8), Min. 3104 (on:off = 0.1s:10s) Min. 3104 (on:off = 0.1s:10s) Over load: 35A 250V AC (cos = 0.8), Over load: 47A 250V AC (cos = 0.8), Min. 50 (on:off = 0.1s:10s) Min. 50 (on:off = 0.1s:10s) Ambient temperature: -40C to +60C -40F to +140F (When nominal coil voltage applied) -40C to +85C -40F to +185F (Coil holding voltage is when 45 to 80%V of nominal coil voltage is applied.) Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature) Air pressure: 86 to 106 kPa 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 Wave is standard shock voltage of 1.250s according to JEC-212-1981 *3 In accordance with UL class-F *4 Coil holding voltage is the coil voltage after 100 ms from the applied nominal coil voltage. *5 The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to 1. Usage, transport and storage conditions in NOTES. 2 ds_61B12_en_lfg: 080711D LF-G (ALFG) REFERENCE DATA Standard type 1-1. DC load limit curve 100 60 Switching Current (A) 30 20 resistive DC- load 10 5 3 2 1 0.5 0.3 0.2 10 20 30 40 60 100 200 500 300 700 1000 Switching Voltage (VDC) 1-2. Coil temperature rise 2. Ambient temperature characteristics and coil applied voltage Sample: ALFG1PF09, 6 pcs. Point measured: coil inside Ambient temperature: 20C 68F, 60C 140F Contact carrying current: 22A *Inside the coil temperature 155C 311F (UL Class F) Allowable ambient temperatures against % coil voltages (max. inside the coil temperature set as 155C 311F) 20C 68F 22A 60C 140F 22A 80 20C 68F 0A 60C 140F 0A 60 Coil applied voltage, %V Temperature rise, C 100 40 180 140 Contact carrying current: 22A 100 Pick-up voltage 60 Coil & contact no carrying current 3. Electrical life test (22A 250V AC Resistive load) Contact welding detection and Mis-contacting detection circuit Circuit: 9V DC 0 10 20 30 40 50 60 70 80 90 Ambient temperature, C Change of pick-up and drop-out voltage Sample: ALFG1PF09, 6 pcs. Operation frequency: ON:OFF = 1.5s:1.5s Ambient temperature: 85C 185F 250V AC 0 140 100 9 90 8 7 6 Pick-up voltage 4 3 Drop-out voltage 2 250V AC 9V DC ds_61B12_en_lfg: 080711D Contact welding detection and Mis-contacting detection circuit Circuit: Max. x Min. 1 0 0 80 70 60 50 40 30 20 0 3 100 90 8 7 Pick-up voltage Max. x Min. 5 4 3 Drop-out voltage Max. x Min. 1 0 0 3 No. of operations, x10 4 3 Change of contact resistance 9 2 0 No. of operations, x104 10 6 Max. x Min. 10 4 Change of pick-up and drop-out voltage Pick-up and drop-out voltage, V Sample: ALFG1PF09, 6 pcs. Operation frequency: ON:OFF = 0.1s:10s Ambient temperature: 85C 185F Max. x Min. 5 No. of operations, x10 4. Electrical life test (22A 250V AC cos = 0.8 Inductive load) Change of contact resistance 10 Contact resistance, m 100 120 Coil applied voltage, %V Contact resistance, m 80 Pick-up and drop-out voltage, V 20 60 80 70 60 50 40 30 Max. 20 x 10 0 Min. 0 3 No. of operations, x10 4 3 LF-G (ALFG) High capacity type 1. Coil temperature rise 2. Ambient temperature characteristics and coil applied voltage Sample: ALFG2PF09, 6 pcs. Point measured: coil inside Ambient temperature: 20C 68F, 60C 140F Contact carrying current: 31A *Inside the coil temperature 155C 311F (UL Class F) Allowable ambient temperatures against % coil voltages (max. inside the coil temperature set as 155C 311F) 20C 68F 31A Coil applied voltage, %V Temperature rise, C 100 60C 140F 31A 80 20C 68F 0A 60C 140F 0A 60 40 180 140 Contact carrying current: 31A 100 Pick-up voltage 60 Coil & contact no carrying current 80 100 120 Coil applied voltage, %V 0 140 3. Electrical life test (31A 250V AC cos = 0.8 Inductive load) Pick-up and drop-out voltage, V Contact welding detection and Mis-contacting detection circuit Circuit: 9V DC 10 20 30 40 50 60 70 80 90 Ambient temperature, C Change of pick-up and drop-out voltage Sample: ALFG2PF09, 6 pcs. Operation frequency: ON:OFF = 0.1s:10s Ambient temperature: 85C 185F 250V AC 0 Change of contact resistance 10 100 9 90 Contact resistance, m 20 60 8 7 Pick-up voltage 6 Max. x 5 Min. 4 3 Drop-out voltage Max. x Min. 2 70 60 50 40 30 Max. 20 1 0 80 x 10 0 0 3 No. of operations, x10 Min. 0 3 No. of operations, x10 4 DIMENSIONS(mm inch) 4 CAD Data Data from our Web site. Download CAD External dimensions CAD Data PC board pattern (Bottom view) 27.60.1 1.087.004 0.5 .020 23.3 .917 13.80.1 .543.004 2.0 dia. .079 dia. 2.0 dia. .079 dia. 12.00.1 .472.004 22.0 .866 27.6 1.087 12.0 .472 4.0 .157 30.1 1.185 15.7 .618 1.8 dia. .071 dia. 1.8 dia. .071 dia. 12.00.1 .472.004 10.00.1 .394.004 Tolerance: 0.1 .004 Schematic (Bottom view) NO COM Dimension: General tolerance Max. 1mm .039 inch: 0.1 .004 1 to 3mm .039 to .118 inch: 0.2 .008 Min. 3mm .118 inch: 0.3 .012 SAFETY STANDARDS Certification authority UL, C-UL VDE (VDE0435) 4 Standard type High capacity type 22A 277V AC General Use (at 85C 185F) 31A 277V AC General Use (at 85C 185F) 22A 250V AC cos = 0.8 (at 85C 185F) 31A 250V AC cos = 0.8 (at 85C 185F) ds_61B12_en_lfg: 080711D LF-G (ALFG) NOTES Usage, transport and storage conditions 1) Temperature: -40 to +60C -40 to +140F (When nominal coil voltage applied) -40 to +85C -40 to +185F (When coil holding voltage is 45% to 80% of the nominal coil voltage) 2) Humidity: 5 to 85% RH (Avoid freezing and condensation.) The humidity range varies with the temperature. Use within the range indicated in the graph below. 3) Atmospheric pressure: 86 to 106 kPa Temperature and humidity range for usage, transport, and storage Humidity, %RH 85 Tolerance range (Avoid freezing when used at temperatures lower than 0C 32F) 5 - 40 - 40 (Avoid condensation when used at temperatures higher than 0C 32F) 0 60 +32 +140 Temperature, C F Humidity, %RH 85 Tolerance range (Avoid freezing when used at temperatures lower than 0C 32F) 5 -40 -40 (Avoid condensation when used at temperatures higher than 0C 32F) 0 +32 Temperature, C F 85 +185 -40 to +85C -40 to +185F (When 45% to 80%V of coil holding voltage) 4) Condensation Condensation forms when there is a sudden change in temperature under high temperature and high humidity conditions. Condensation will cause deterioration of the relay insulation. 5) Freezing Condensation or other moisture may freeze on the relay when the temperatures is lower than 0C 32F. This causes problems such as sticking of movable parts or operational time lags. 6) Low temperature, low humidity environments The plastic becomes brittle if the relay is exposed to a low temperature, low humidity environment for long periods of time. ds_61B12_en_lfg: 080711D Solder and cleaning conditions 1) Please obey the following conditions when soldering automatically. (1) Preheating: Within 120C 248F (solder surface terminal portion) and within 120 seconds (2) Soldering iron: 260C5C 500F41F (solder temperature) and within 6 seconds (soldering time) 2) Since this is not a sealed type relay, do not clean it as is. Also, be careful not to allow flux to overflow above the PC board or enter the inside of the relay. Certification 1) This relay is UL, C-UL certified. UL, C-UL; Standard type: 22A 277V AC General Use High capacity type: 31A 277V AC General Use 2) This relay is certified by VDE (VDE0435). VDE; Standard type: 22A 250V AC cos = 0.8 High capacity type: 31A 250V AC cos = 0.8 Cautions for use 1) For precautions regarding use and explanations of technical terminology, please refer to our web site. (panasonic-electric-works.net/ac) 2) To ensure good operation, please keep the voltage on the coil ends to 5% (at 20C 68F) of the rated coil operation voltage. Also, please be aware that the pick-up voltage and drop-out voltage may change depending on the temperature and conditions of use. 3) Keep the ripple rate of the nominal coil voltage below 5%. 4) Please test with actual device when using the coil holding voltage with PWM control. 5) The cycle lifetime is defined under the standard test condition specified in the JIS C5442 standard (temperature 15 to 35C 59 to 95F, humidity 25 to 75%). Check this with the real device as it is affected by coil driving circuit, load type, activation frequency, activation phase, ambient conditions and other factors. Also, be especially careful of loads such as those listed below. (1) When used for AC load-operating and the operating phase is synchronous. Rocking and fusing can easily occur due to contact shifting. (2) Highly frequent load-operating When highly frequent opening and closing of the relay is performed with a load that causes arcs at the contacts, nitrogen and oxygen in the air is fused by the arc energy and HNO3 is formed. This can corrode metal materials. Three countermeasures for these are listed here. * Incorporate an arc-extinguishing circuit. * Lower the operating frequency * Lower the ambient humidity 6) 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. 7) Heat, smoke, and even a fire may occur if the relay is used in conditions outside of the allowable ranges for the coil ratings, contact ratings, operating cycle lifetime, and other specifications. Therefore, do not use the relay if these ratings are exceeded. 8) If the relay has been dropped, the appearance and characteristics should always be checked before use. 9) Incorrect wiring may cause unexpected events or the generation of heat or flames. 10) If complying with the Electrical Appliance and Material Safety Law (300V AC), please use with a nominal current no higher than 10A. 11) In order to reduce the occurrence of solder cracking due to thermal stress on the PC board, please use a double-face through hole PC board. 5