| Class
Model name (3G3AX-) | 3-phase 200-V class | 3-phase 400-V class |
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| Class
Model name (3G3AX-) | RBU21 | RBU22 | RBU41 *1 |
| Connection resistance | 17 Ω min. | 17 Ω min. | 34 Ω min. |
| Operating voltage ON/OFF | ON: 362.5 ± 5 V, OFF: 355 ± 5 V
(-5% or -10% setting available) | ON: 725 ± 5 V, OFF: 710 ± 5 V
(-5% or -10% setting available) |
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| Operation indication | LED ON (Lit) |
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| Parallel interlocking operation function *2 | 5 units max. |
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| Internal resistance | 120 W, 180 Ω | 120 W, 20 Ω | 120 W, 180 Ω × 2 in series |
| Allowable consecutive ON time | 10 s max. | 0.5 s max. | 10 s max. |
| Allowable operation cycle | Cycle 1/10
(ON for 10 s, OFF for 90 s) | Cycle 1/80
(ON for 0.5 s, OFF for 40 s) | Cycle 1/10
(ON for 10 s, OFF for 90 s) |
| Power consumption | Instantaneous 0.73 kW Short-time rating 120 W | Instantaneous 6.6 kW Short-time rating 120 W | Instantaneous 1.46 kW Short-time rating 240 W |
|
Built-in resistor overheat protection | • Cooling fin temperature Relay operates at approximately 200°C or higher.
Recovers at approximately 170°C or lower. • Built-in temperature fuse (recovery impossible) *3 • Rating of contact 250 V AC 200 mA (R load), 12 V DC 500 mA (R load), 42 V DC 200 mA (R load) • Minimum load 1 mA (R load) |
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| Ambient temperature | -10 to 50°C |
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| Ambient storage temperature | -20 to 65°C |
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| Ambient operating humidity | 20% to 90% (with no condensation) |
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| Vibration | 5.9 m/s2 (0.6G) 10 to 55 Hz |
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| Location | At a maximum altitude of 1,000 m (without corrosive gases or dust) |
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| Paint color | Munselle 5Y7/1 (cooling fan: aluminum ground color) |
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