Datasheet

18 DC Power Relays (25-A Models) G9EB-1
Specifications
■ Ratings
Coil
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%.
2. The figures for the operating characteristics are for a coil temperature of 23
°C.
3. The figure for the maximum voltage is the maximum voltage that can be applied to the relay coil.
Contacts
■ Characteristics
Note: 1. The above values are initial values at an ambient temperature of 23°C 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.
7. These values are for when a varistor is used as the protective circuit against reverse surge in the relay coil. Using a diode will reduce the
switching characteristics.
Rated voltage Rated current Coil resistance Must-operate
voltage
Must-release
voltage
Maximum voltage
(See note 3.)
Power
consumption
12 VDC 166.7 mA 72
Ω 75% max. of rated
voltage
10% min. of rated
voltage
130% of rated volt-
age (at 23°C within
10 minutes)
Approx. 2 W
24 VDC 83.3 mA 288
Ω
48 VDC 41.7 mA 1,152 Ω
60 VDC 33.3 mA 1,800 Ω
100 VDC 20 mA 5,000 Ω
Item Resistive load
G9EB-1(-B)
Rated load 25 A at 250 VDC
Rated carry current 25 A
Maximum switching voltage 250 V
Maximum switching current 25 A
Item G9EB-1-B
Contact resistance (See note 2.)
30 mΩ max.
Contact voltage drop 0.1 V max. (for a carry current of 25 A)
Operate time
30 ms max.
Release time
15 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/s
2
)
Malfunction
10 to 55 to 10 Hz, 0.75-mm single amplitude (Acceleration: 2.94 to 88.9 m/s
2
)
Shock resistance Destruction
490 m/s
2
Malfunction
100 m/s
2
Mechanical endurance (See note 5.)
100,000 operations min.
Electrical endurance (resistive load) (See note 6 and 7.)
250 VDC, 25 A, 30,000 ops. min.
Short-time carry current 50 A (5 min), 40 A (10 min)
Maximum interruption current (See note 7.) 100 A at 250 VDC (5 times)
Overload interruption (See note 7.) 50 A at 250 VDC (50 times min.)
Ambient operating temperature
−40 to 70°C (with no icing or condensation)
Ambient operating humidity 5% to 85%
Weight (including accessories) Approx. 135 g