- G9EC-1 DC Power Relays (200-A Models) DC Power Relays Capable of Interrupting High-voltage, High-current Loads A compact relay (98 x 44 x 86.7 mm (L x W x H)) capable of switching 400-V 200-A DC loads. (Capable of interrupting 1,000 A at 400 VDC max.) The switching section and driving section are gas-injected and hermetically sealed, allowing these compact relays to interrupt high-capacity loads. The sealed construction also requires no arc space, saves space, and helps ensure safe applications. Downsizing and optimum design allow no restrictions on the mounting direction. Terminal Cover is also available for industrial applications. UL/CSA standard UL508 approved. RoHS Compliant Refer toDC Power Relays Common Precaution. Model Number Legend G 9 3. Coil Terminals 1. Number of Poles G9EC- - - - E 1: 1 pole B : M3.5 screw terminals (standard) C 12 3 4 Blank: Lead wire output 2. Contact Form 1 Blank: SPST-NO 4. Special Functions List of Models Terminals Models Contact form Coil rated voltage Model Coil terminals Contact terminals 12 VDC Screw terminals G9EC-1-B 24 VDC Switching/current Screw terminals SPST-NO 48 VDC conduction models 60 VDC Lead wire G9EC-1 100 VDC Note 1. Two M8 nuts are provided for the contact terminal connection. Note 2. Two M3.5 screws are provided for the coil terminal connection. Ratings Coil Item Rated current Coil resistance Must-operate voltage Must-release voltage Maximum voltage Power consumption Rated voltage (mA) () (V) (V) (V) (W) 12 VDC 938 12.8 24 VDC 469 51.2 110% of rated 75% max. of rated 8% min. of rated 48 VDC 234 204.8 voltage (at 23C Approx. 11 voltage voltage within 10 minutes) 60 VDC 188 320.0 100 VDC 113 888.9 Note 1. The figures for the rated current and coil resistance are for a coil temperature of 23C and have a tolerance of 10%. Note 2. The figures for the operating characteristics are for a coil temperature of 23C. Note 3. The figure for the maximum voltage is the maximum voltage that can be applied to the relay coil. Contacts Resistive load Item G9EC-1(-B) Rated load 200 A at 400 VDC Rated carry current 200 A Maximum switching voltage 400 V Maximum switching current 200 A 1- G9EC-1 DC Power Relays (200-A Models) Characteristics Item Model G9EC-1(-B) Contact resistance *1 30 m max. (0.2 m typical) Contact voltage drop 0.1 V max. (for a carry current of 200 A) Operate time 50 ms max. Release time 30 ms max. Between coil and 1,000 M min. contacts Insulation resistance *2 Between contacts of 1,000 M min. the same polarity Between coil and 2,500 VAC, 1 min contacts Dielectric strength Between contacts of 2,500 VAC, 1 min the same polarity Impulse withstand voltage *3 4,500 V 10 to 55 to 10 Hz 0.75-mm single amplitude (Acceleration: 2.94 Destruction 2 to 88.9 m/s ) Vibration resistance 10 to 55 to 10 Hz 0.75-mm single amplitude (Acceleration: 2.94 Malfunction 2 to 88.9 m/s ) 2 Destruction 490 m/s Shock resistance 2 Malfunction 196 m/s Mechanical endurance *4 200,000 operations min. Electrical endurance (resistive load) *5 400 VDC, 200 A, 3,000 operations min. Short-time carry current 300 A (15 min) Maximum interruption current 1,000 A at 400 VDC (10 times) Overload interruption 700 A at 400 VDC (40 times min.) G Reverse polarity interruption -200 A at 200 VDC (1,000 times min.) 9 Ambient operating temperature -40 to 50C (with no icing or condensation) E C Ambient operating humidity 5% to 85% 1 Weight (Including accessories) Approx. 560 g Note. The above values are initial values at an ambient temperature of 23C unless otherwise specified. *1. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method. *2. The insulation resistance was measured with a 500-VDC megohmmeter. *3. The impulse withstand voltage was measured with a JEC-212 (1981) standard impulse voltage waveform (1.2 x 50 s). *4. The mechanical endurance was measured at a switching frequency of 3,600 operations/hr. *5. The electrical endurance was measured at a switching frequency of 60 operations/hr. 2