Overview
3RW4453-2BC45 is a SIRIUS 3RW44 series high-performance soft starter, used for smooth starting, stopping and protection of high-power three-phase asynchronous motors. Supports PROFINET, PROFIBUS, EtherNet/IP, Modbus, etc.
Specification
| Item | Specification |
|---|---|
| Type | SIRIUS 3RW44 Soft Starter |
| Rated Current | 551 A (at 40°C, 400–600 V AC) |
| Motor Power (Inline) | 315 kW (400 V), 355 kW (500 V) |
| Motor Power (Inside Delta) | 560 kW (400 V) |
| Control Supply Voltage | 230 V AC, 50/60 Hz |
| Connection | Main circuit: busbar connection |
| Control circuit: spring-loaded terminals | |
| Integrated Functions | Bypass contactor, overload protection, torque control |
| Communication | PROFINET, PROFIBUS, EtherNet/IP, Modbus |
FAQ:
1.What is the rated operating current of the 3RW4453-2BC45?
At 400 ~ 600 V AC, 40 ℃ ambient temperature, 3RW4453-2BC45 rated operating current: 551 A.
2.Does 3RW4453-2BC45 support direct start or soft start control?
3RW4453-2BC45 is a soft starter, mainly used for soft start/soft stop control, and does not support direct start.
3.What are the main differences between 3RW4453-2BC45 and other models of 3RW44?
| Item | 3RW4453-2BC45 | 3RW44 Low-power models (e.g. 3RW4443/44/45) | 3RW44 High-power models (e.g. 3RW4454/55/56) |
|---|---|---|---|
| Rated current (40°C) | 551 A | 203–356 A | 615–1214 A |
| Motor rating (400 V) | Standard: 315 kW
Inside delta: 560 kW |
110–200 kW | Standard: 355–710 kW
Inside delta: 630–1200 kW |
| Control supply | 230 V AC | Mostly 230 V AC (some 110 V) | 230 V AC |
| Main voltage range | 400–600 V AC | 200–460 V / 400–690 V | 400–690 V AC |
| Control terminals | Spring-loaded type | Screw type / Spring-loaded type | Screw type / Spring-loaded type |
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We supply this 3RW4453-2BC45 mainly to system integrators and maintenance teams for replacement and retrofit projects.
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