omron — Regenerative Braking Unit (3G3AX-RBU)

7-3 Options 7 Specifications 7-17 Applicable voltage class 3-phase 200-V class 3-phase 400-V class Model 3G3AX-RBU23 3G3AX-RBU24 3G3AX-RBU42 3G3AX-RBU43 Discharge resistance Continuous operation 6 Ω min. 4 Ω min. 24 Ω min. 12 Ω min. Short-time operation Allowable operation cycle Continuous ON time 4 Ω min. 1/5 2 min 2 Ω min. 1/5 2 min 10 Ω min. 1/10 10 s 6 Ω min. 1/5 2 min Operating voltage ON/ OFF ON: 362.5 ± 5 V OFF: 355 ± 5 V ON: 725 ± 5 V OFF: 710 ± 5 V Operation indication LED ON (Lit) Parallel interlocking operation function 2 units max.

Protective functions Power module overheat protection Temperature relay for protection Operates at a cooling fin temperature of 100°C Normally closed (NC contact) Rating of contact: 240 V AC 3 A (R load), 0.2 A (L load) 36 V DC 2 A (R load) Minimum load: 15 V DC 50 mA (R load) Operating environment Ambient temperature -10°C to 50°C Ambient storage temperature -20°C to 65°C (short-time temperature during transport) Humidity 20% to 90% (with no condensation) Vibration 4.9 m/s2 (0.5G) 10 to 55 Hz Location At a maximum altitude of 1,000 m; indoors (without corrosive gases or dust)