Carlo Gavazzi – RSE4012‑B – 12 A/400 VAC 3‑Phase Soft Starter

The Carlo Gavazzi RSE4012‑B is an efficient 3‑phase soft starter designed for smooth motor ramp-up and reduced mechanical stress. With a robust IP20 DIN‑rail housing and versatile control input, it supports single-phase and 3‑phase applications for motors up to 5.5 kW at 400 VAC.

Key Features & Specifications:

• Model / MPN: RSE4012‑B  

• Rated Current: 12 A AC  

• Voltage Range (Ue): 340–460 V AC (nominal 400 V)  

• Motor Power Capability: Up to 5.5 kW @ 400 VAC

• Control Voltage (Uc): 24–110 VAC/DC & 110–480 VAC  

• Soft-Start Potentiometers: Adjustable ramp time (0.5–6.5 s) and initial torque (0–85%)  

• Integral Bypass Relay: Yes, for full voltage motor operation post-start  

• Built-In Protection: Transient over-voltage suppression; control input protection

• Indications: Green LED for power, yellow LEDs for ramp and run status  

• Mounting / Housing: DIN‑rail, 45 × 82 × 102.5 mm, IP20  

• Operating Temp: –20 °C to +50 °C; Storage –50 °C to +85 °C  

• Certifications: CE, UL, cUL, CSA; IP20 enclosure  

• Weight: ~300 g