Business > Industrial Devices > Automation Controls Top > Components & Devices > Relays / Couplers > Power Relays (Over 2A) > Power Relays (Over 2A) Lineup > ST Relays > Rating/Performance
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Rated coil voltage |
Operate voltage* (at 20°C) |
Release voltage* (at 20°C) |
Rated operating current (±10%, at 20°C) |
Coil resistance (±10%, at 20°C) |
Rated operating power |
Max. allowable voltage (at 20°C) |
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3 V DC | Max. 80% V of rated coil voltage (Initial) | Min. 10% V of rated coil voltage (Initial) | 78.9 mA | 38 Ω | Approx. 240 mW |
150% V of rated coil voltage |
5 V DC | 47.6 mA | 105 Ω | ||||
6 V DC | 40 mA | 150 Ω | ||||
9 V DC | 25 mA | 360 Ω | ||||
12 V DC | 20 mA | 600 Ω | ||||
24 V DC | 10 mA | 2,400 Ω | ||||
48 V DC | 5.3 mA | 9,000 Ω |
* | square, pulse drive |
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Rated coil voltage |
Set voltage* (at 20°C) |
Reset voltage* (at 20°C) |
Rated operating current (±10%, at 20°C) |
Coil resistance (±10%, at 20°C) |
Rated operating power |
Max. allowable voltage (at 20°C) |
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Set coil | Reset coil | Set coil | Reset coil | Set coil | Reset coil | ||||
3 V DC | Max. 80% V of rated coil voltage (Initial) |
Max. 80% V of rated coil voltage (Initial) |
75 mA | 75 mA | 40 Ω | 40 Ω | Approx. 240 mW |
Approx. 240 mW |
150% V of nominal voltage |
5 V DC | 45 mA | 45 mA | 110 Ω | 110 Ω | |||||
6 V DC | 37.5 mA | 37.5 mA | 155 Ω | 155 Ω | |||||
9 V DC | 25 mA | 25 mA | 360 Ω | 360 Ω | |||||
12 V DC | 18.8 mA | 18.8 mA | 640 Ω | 640 Ω | |||||
24 V DC | 10 mA | 10 mA | 2,400 Ω | 2,400 Ω | |||||
48 V DC | 4.7 mA | 4.7 mA | 10,200 Ω | 10,200 Ω |
* | square, pulse drive |
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Item | Specifications | |
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Contact data | Contact arrangement | 1 Form A 1 Form B, 2 Form A |
Contact resistance (initial) | Max. 30 mΩ (by voltage drop 6 V DC 1 A) | |
Contact material | Au-flashed AgSnO2 type | |
Contact rating (resistive) | 8 A 250 V AC, 5 A 30 V DC | |
Max. switching power (resistive) | 2,000 VA, 150 W | |
Max. switching voltage | 250 V AC, 30 V DC | |
Max. switching current | 8 A (AC), 5 A (DC) | |
Min. switching load (reference value)*1 | 100 mA 5 V DC | |
Insulation resistance (initial) | Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength.) | |
Dielectric strength (initial) | Between open contacts |
1,200 Vrms for 1 min (detection current: 10 mA) |
Between contact sets |
2,000 Vrms for 1 min (detection current: 10 mA) | |
Between contact and coil |
3,750 Vrms for 1 min (detection current: 10 mA) | |
Surge withstand voltage (initial)*2 | Between contact and coil |
6,000 V |
Time characteristics (initial) | Operate (Set) time | Max. 15 ms (Max. 15 ms) at rated coil voltage (at 20°C, without bounce) |
Release (Reset) time | Max. 10 ms (Max. 15 ms) at rated coil voltage (at 20°C, without bounce, without diode) | |
Shock resistance | Functional | 196 m/s2 (half-sine shock pulse: 11 ms, detection time:10 μs) |
Destructive | 980 m/s2 (half-sine shock pulse: 6 ms) | |
Vibration resistance | Functional | 10 to 55 Hz (at double amplitude of 2 mm, detection time: 10 μs) |
Destructive | 10 to 55 Hz (at double amplitude of 3 mm) | |
Expected life | Mechanical life | Min. 10 x 106 ope. (switching frequency: at 180 times/min) |
Conditions | Conditions for usage, transport and storage *2 |
Ambient temperature: -40 to +60°C, Humidity: 5 to 85% RH (Avoid icing and condensation) |
Unit weight | Approx. 10 g |
*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. |
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*2 | Wave is standard shock voltage of ±1.2 x 50 μs according to JEC-212-1981 |
*3 | For ambient temperature, please read "GUIDELINES FOR RELAY USAGE". |
Conditions: Resistive load, switching frequency ON : OFF = 1 s : 5 s
Type | Switching capacity | Number of operations |
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1 Form A 1 Form B, 2 Form A | 8 A 250 V AC | Min. 100 x 103 ope. |
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