New Product News DC Power Relays G9EJ-1-E Compact DC Power Relays Capable of Switching 400 V 15 A DC loads • Actualize a high capacity interruption through the function of extinction of magnetic arc by adopting high-efficiency magnetic circuit.  Actualize improvement of inrush-withstand performance and a long-life by adopting Omron's own contact driving system.  Actualize the power saving.  Small and lightweight type. Size: H31 mm × W27 mm × L44 mm, Weight: approx. 45 g RoHS Compliant Refer to the Precautions on page 5. Model Number Structure 1. Number of Poles 4. Classification G9EJ-@-@-@-@-@ — — — — — 1: 1 pole E: High capacity 1 2 3 4 5 2. Contact Form 5. Approved standards Blank: SPST-NO UVD: UL, CSA, VDE approved standard type 3. Terminal Form Blank: Tab terminals (#250 terminals) P: PCB terminals Ordering Information Terminals Minimum packing unit Models Contact form Rated coil voltage Model (quantity) Coil terminals Contact terminals 12 VDC Tab terminals Tab terminals G9EJ-1-E-UVD #250 #250 24 VDC Switching/current SPST-NO 10 conduction models 12 VDC PCB terminals PCB terminals G9EJ-1-P-E-UVD 24 VDC Ratings ● Coil Rated voltage Rated current Coil resistance Must-operate voltage Must-release voltage Maximum voltage (See note 3) Power consumption 12 VDC 100 mA 120 Ω 60% max. of rated 130% of rated voltage 5% min. of rated voltage Approx. 1.2 W voltage (at 23°C within 10 minutes) 24 VDC 50 mA 480 Ω Note: 1. The figures for the rated current and coil resistance are for a coil temperature of 23°C and have a tolerance of ±10%. Note: 2. The figures for the operating characteristics are for a coil temperature of 23°C . Note: 3. The figure for the maximum voltage is the maximum voltage that can be applied to the relay coil. ● Contacts Item Resistive load Rated load 15 A at 400 VDC Rated carry current 15 A Maximum switching voltage 400 V Maximum switching current 15 A 1 G9EJ-1-E DC Power Relays Characteristics Item G9EJ-1(-P)-E-UVD Contact resistance *1 100 mΩ max. Contact voltage drop 0.2 V max. (for a carry current of 15 A) Operate time *2 50 ms max. Release time *2 30 ms max. Between coil and contacts 1,000 MΩ min. Insulation resistance *3 Between contacts of the same polarity 1,000 MΩ min. Between coil and contacts 2,500 VAC 1 min Dielectric strength Between contacts of the same polarity 2,500 VAC 1 min Impulse withstand voltage *4 4,500 V 10 to 55 to 10Hz, 0.75 mm single amplitude Destruction 2 (Acceleration: 2.94 to 88.9 m/s ) Vibration resistance 10 to 55 to 10Hz, 0.75 mm single amplitude Malfunction 2 (Acceleration: 2.94 to 88.9 m/s ) 2 Destruction 490 m/s 2 Shock resistance Energized 490 m/s Malfunction 2 Deenergized 98 m/s Mechanical endurance *5 200,000 ops. min. Electrical endurance *6 400 VDC, 15 A, 10,000 ops. min. Electrical endurance (condenser load) *6 400 VDC, 25 A, 100,000 ops. min. Short-time carry current 30 A (20 sec.) Overload switching 400 VDC, 30A, 100 ops. min. Maximum interruption current 50 A at 400 VDC (5 times) Reverse polarity interruption –15 A at 400 VDC (1,000 times min.) Ambient operating temperature –40 to 70°C (with no icing or condensation) Ambient operating humidity 5% to 85% Weight Approx. 45 g Note: The above values are initial values at an ambient temperature of 23°C unless otherwise specified. *1. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method. *2. Measurement conditions: With rated operating voltage applied (without diode), not including contact bounce. *3. The insulation resistance was measured with a 500 VDC megohmmeter. *4. The impulse withstand voltage was measured with a JEC-212 (1981) standard impulse voltage waveform (1.2 × 50 µs). *5. The mechanical endurance was measured at a switching frequency of 3,600 operations/hr. *6. The electrical endurance was measured at a switching frequency of 60 operations/hr. Engineering Data ● Maximum Switching Capacity ● Electrical Endurance ● Electrical Endurance (Switching Performance) (Interruption Performance) 1,000 10,000 10,000 5,000 5,000 500 3,000 3,000 300 1,000 1,000 500 500 100 DC resistive load 300 300 50 Switching 400-VDC resistive 100 100 30 load (positive direction) 50 50 30 30 10 Interrupting 400-VDC resistive 10 10 5 load (positive direction) 5 5 3 3 3 1 1 1 10 30 50 100 300 500 1,000 1 35 10 30 50 100 10 30 50 100 Switching voltage (V) Switching current (A) Switching current (A) ● Carry Current vs. Energizing Time ● Must-operate Voltage and Must- ● Time Characteristic Distributions release Voltage Distributions (Number of Contacts × Time (ms)) (Number of Relays × Percentage of Rated Voltage) 35 35 100,000 Must-operate voltage Operate time Must-release voltage Release time 30 30 10,000 Number: 64 25 25 Number: 64 1,000 20 20 15 15 100 10 10 10 5 5 1 0 0 20 40 60 80 100 5 10 15 20 25 15 1 35 10 30 50 100 Percentage of rated voltage (%) Time (ms) Switching current (A) 2 Switching current (A) Energizing time (s) Operations Number of Relays Operations Number of Contacts G9EJ-1-E DC Power Relays ● Vibration Malfunction ● Vibration Resistance ● Shock Resistance 1 10.0 10.0 Must-operate voltage Must-operate voltage Number: 5 0.9 8.0 8.0 Must-release voltage Must-release voltage Unconfirmed area 0.8 6.0 6.0 0.7 4.0 4.0 0.6 2.0 2.0 0.5 0.0 0.0 0.4 −2.0 −2.0 Confirmed area 0.3 −4.0 −4.0 0.2 −6.0 −6.0 Number: 5 Number: 5 0.1 −8.0 −8.0 0 −10.0 −10.0 11 3 503050 100 Start After test Start After test Frequency (Hz) Characteristics were measured after applying vibration Characteristics were measured after applying a shock 2 at a frequency of 10 to 55 Hz (single amplitude of 0.75 of 490 m/s to the test piece 3 times each in 6 directions mm) to the test piece (not energized) for 2 hours each along 3 axes. in 3 directions. The percentage rate of change is the The percentage rate of change is the average value for average value for all of the samples all of the samples. ● Shock Malfunction Z Z Y Y 500 500 Z´ Z´ X´ X´ 400 Y´ Y´ 400 X X Y Y 300 300 X Z X Z 200 200 100 100 Deenergized Deenergized 0 0 Z´ X´ Z´ X´ 2 2 Unit: m/s Unit: m/s Sample: G9EJ-1-E-UVD Energized Sample: G9EJ-1-P-E-UVD Energized Number: 5 Number: 5 Y´ Y´ The value at which malfunction occurred was The value at which malfunction occurred was measured after applying shock to the test piece measured after applying shock to the test piece 3 times each in 6 directions along 3 axes. 3 times each in 6 directions along 3 axes. 3 Single amplitude (mm) Rate of change (%) Rate of change (%) G9EJ-1-E DC Power Relays Dimensions (Unit: mm) Mounting Hole Dimensions G9EJ-1-E-UVD (TOP VIEW) 4 3 44 38 31 20.9 8.5 0.8 2 (−) (+)1 27 15.4 8 3.5 15.5 Note: Be sure to connect terminals with the correct polarity. Coils do not have polarity. 0.8 Mounting Hole Dimensions 6.3 0.8 6.3 Connecting terminals (#250 tab) Two, M3 or 3.5-dia. holes 11 Dimension (mm) Tolerance (mm) 10 or lower ±0.3 30 10 to 50 ±0.5 40±0.1 2 1 Mounting Hole Dimensions G9EJ-1-P-E-UVD (TOP VIEW) 27 31 4 3 30 32.2 2 (−) (+)1 Note: Be sure to connect terminals 1.2 with the correct polarity. 4 0.8 1.2 Coils do not have polarity. 1.2 6.3 Mounting Hole Dimensions Relay Mounted on PCB (Reference Information) +0.1 Six, 1.7 dia. 0 (3.25) 5.1±0.1 0.8 Dimension (mm) Tolerance (mm) 10 or lower ±0.3 15.4 15.5 15.4±0.1 16.3±0.1 (32.5) 10 to 50 ±0.5 (5.35) 0.8 8.5 (3.1) 20.9±0.1 (7) 20.9 Approved standards UL Recognized: File No.E41515 CSA Certified: File No.LR31928 VDE Certified: File No.40037110 Model Coil ratings Contact ratings Pollution level Model Coil ratings Contact ratings Pollution level G9EJ-1(-P)-E-UVD 12 V, 24 V 15 A, 500 VDC (Resistive) 2 G9EJ-1(-P)-E-UVD 12 V, 24 V 15 A, 500 VDC (Resistive) 2 4 G9EJ-1-E DC Power Relays Precautions WARNING Take measures to prevent contact with charged parts when using the Relay for high voltages. Precautions for Correct Use Refer to the relevant catalog for common precautions. 11.Do not use the Relay in locations where water, solvents, 1. The G9EJ Relays' contacts have polarity. chemicals, or oil may come in contact with the case or termi- Be sure to perform connections with the correct polarity. nals. Doing so may result in deterioration of the case resin or If the contacts are connected with the reverse polarity, the abnormal heating due to corrosion or contamination of the switching characteristics specified in this document cannot be terminals. Also, if electrolyte adheres to the output terminals, assured. electrolysis may occur between the output terminals, result- 2. Do not drop or disassemble this Relay. Not only may the ing in corrosion of the terminals or wiring disconnections. Relay fail to meet the performance specifications, it may also 12.Be sure to turn OFF the power and confirm that there is no result in damage, electric shock, or burning. residual voltage before replacing the Relay or performing wir- 3. Do not use these Relays in strong magnetic fields of 800 A/m ing. or higher (e.g., near transformers or magnets). The arc dis- 13.The distance between crimp terminals or other conductive charge that occurs during switching may be bent by the mag- parts will be reduced and insulation properties will be lowered netic field, resulting in flashover or insulation faults. if wires are laid in the same direction from the contact termi- 4. This Relay is a device for switching high DC voltages. If it is nals. Use insulating coverings, do not wire in the same direc- used for voltages exceeding the specified range, it may not tion, and take other measures as required to maintain be possible to interrupt the load and burning may result. In insulation properties. order to prevent fire spreading, use a configuration in which 14.Use either a varistor, or a diode plus Zener diode as a protec- the current load can be interrupted in the event of emergen- tive circuit against reverse surge in the relay coil. Using a cies. diode alone will reduce the switching characteristics. In order to ensure safety of the system, replace the Relay on 15.Use two M3 screws to mount a Relay with tab terminals. (The a regular basis. tightening torque is 0.98 N·m.) 5. If the Relay is used for no-load and/or minute load switching, 16.Manually mount Relays with PCB Terminals. Do not use auto- the contact resistance may increase and so confirm correct matic soldering for them. operation under the actual operating conditions. Do not bend the terminals to secure the Relay to the PCB. 6. With this Relay, if the rated voltage (or current) is continu- 17.A Relay with PCB Terminals weighs approximately 45 g. ously applied to the coil and contacts, and then turned OFF Be sure that the PCB is strong enough to support it. and immediately ON again, the coil temperature, and conse- 18.For the PCBs, we recommend dual-side through-hole PCBs quently the coil resistance, will be higher than usual. This to reduce solder cracking from heat stress. means that the must operate voltage will also be higher than 19.The coil terminals (A in the figure) and contact terminals (B in usual, exceeding the rated value ("hot start"). In this case, the figure) on Relays with PCB terminals have charged metal take the appropriate countermeasures, such as reducing the parts. Also, the shaded part in the following diagram may also load current or restricting the energizing time or ambient be charged. When you use the Relay, make sure that there is operating temperature. no metal pattern on the corresponding part of the PCB. 7. The ripple percentage for DC relays can cause fluctuations in Detail of Area A Detail of Area B the must-operate voltage or humming. For this reason, reduce the ripple percentage in full-wave rectified power sup- ply circuits by adding a smoothing capacitor. Ensure that the (1) (1) ripple percentage is less than 5%. 1.2 8. Ensure that a voltage exceeding the specified maximum volt- 6.3 6.3 age is not continuously applied to the coil. Abnormal heating A B in the coil may shorten the lifetime of the insulation coating. 9. Do not use the Relay at a switching voltage or current greater than the specified maximum values. Doing so may result in arc discharge interruption failure or burning due to abnormal 6 heating in the contacts. 10.The contact ratings are for resistive loads. The electrical 3 Charged metal part 9 endurance with inductive loads is inferior to that of resistive loads. Confirm correct operation under the actual operating conditions. 5  Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.  Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or equipment, and be sure to provide the system or equipment with double safety mechanisms. Note: Do not use this document to operate the Unit. OMRON Corporation Electronic and Mechanical Components Company Contact: www.omron.com/ecb Cat. No. J195-E1-05 1215 (0114) (O)