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DC Power Relays G9E□ Series
G9EC-1 DC Power Relays(200-A Models)
DC Power Relays Capable of Interrupting High-voltage, High-current Loads
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A compact relay (98 × 44 × 86.7 mm (L × W × 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.
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Updated March 23, 2009
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This web page provides an excerpt from a datasheet.
Refer to Datasheetand other applicable documents for more information.
Refer to Datasheetand other applicable documents for more information.
| Models | Terminals | Contact form | Coil rated voltage | Model | |
|---|---|---|---|---|---|
| Coil terminals | Contact terminals | ||||
| Switching / current conduction models | Screw terminals (See note 2.) |
Screw terminals (See note 1.) |
SPST-NO | 12 VDC 24 VDC 48 VDC 60 VDC 100 VDC |
G9EC-1-B |
| Lead wire | G9EC-1 | ||||
| Note:1. | Two M8 nuts are provided for the contact terminal connection. |
| 2. | Two M3.5 screws are provided for the coil terminal connection. |
Coil
| Rated voltage | Rated current | Coil resistance | Must-operate voltage | Must-release voltage | Maximum voltage (See note 3.) | Power consumption |
|---|---|---|---|---|---|---|
| 12 VDC | 938 mA | 12.8 Ω | 75% max. of rated voltage | 8% min. of rated voltage | 110% of rated voltage (at 23ºC within 10 mimutes) |
Approx. 11 W |
| 24 VDC | 469 mA | 51.2 Ω | ||||
| 48 VDC | 234 mA | 204.8 Ω | ||||
| 60 VDC | 188 mA | 320.0 Ω | ||||
| 100 VDC | 113 mA | 888.9 Ω |
| Note:1. | The figures for the rated current and coil resistance are for a coil temperature of 23ºC and have a tolerance of ±10%. |
| 2. | The figures for the operating characteristics are for a coil temperature of 23ºC. |
| 3. | The figure for the maximum voltage is the maximum voltage that can be applied to the relay coil. |
Contacts
| Item | Resistive load |
|---|---|
| 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 |
Characteristics
| Item | G9EC-1(-B) | |
|---|---|---|
| Contact resistance (See note 2.) | 30 mΩ max. (0.2 mΩ 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. | |
| Insulation resistance (See note 3.) |
Between coil and contacts | 1,000 MΩ min. |
| Between contacts of the same polarity | 1,000 MΩ min. | |
| Dielectric strength | Between coil and contacts | 2,500 VAC, 1 min |
| Between contacts of the same polarity | 2,500 VAC, 1 min | |
| Impulse withstand voltage (See note 4.) | 4,500 V | |
| Vibration resistance | Destruction | 10 to 55 to 10 Hz, 0.75-mm single amplitude (Acceleration: 2.94 to 88.9 m/s2) |
| Malfunction | 10 to 55 to 10 Hz, 0.75-mm single amplitude (Acceleration: 2.94 to 88.9 m/s2) |
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| Shock resistance | Destruction | 490 m/s2 |
| Malfunction | 196m/s2 | |
| Mechanical endurance (See note 5.) | 200,000 operations min. | |
| Electrical endurance (resistive load) (See note 6.) | 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.) | |
| Reverse polarity interruption | -200 A at 200 VDC (1,000 times min.) |
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| Ambient operating temperature | -40 to 50ºC (with no icing or condensation) |
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| Ambient operating humidity | 5% to 85% | |
| Weight | Approx. 560 g | |
| Note:1. | The above values are initial values at an ambient temperature of 23ºC unless otherwise specified. |
| 2. | The contact resistance was measured with 1 A at 5 VDC using the voltage drop method. |
| 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. |
Screw Terminal Type
G9EC-1-B
| Mounting Hole Dimensions (TOP VIEW)  |
Terminal Arrangement / Internal Connections (TOP VIEW) 
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Models with Lead Wires G9EC-1  |
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| Options Terminal Cover P9EC-C  Note:Be sure to remove the cutouts for wiring that are located in the wiring outlet direction before installing the Terminal Cover. |
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