WEG SSW900D0312T5E3 SSW900 Digital Soft Starter

Feature & Principle

It belongs to WEG SSW900 series digital soft starter. It controls output voltage by thyristor phase angle regulation to realize smooth ramp-up and ramp-down for three-phase induction motors, reduce starting inrush current and mechanical impact. This unit integrates built-in bypass contactor to reduce heat loss after motor running. It supports pump control, kick start, fire mode and comprehensive motor protection, with graphic HMI, event log and Modbus communication. Widely used for water pumps, fans and conveyor loads.

Specifications

Model: SSW900D0312T5E3 Brand: WEG Series: SSW900 Rated current: 312 A Power circuit voltage: 220~575 VAC (T5) Control supply: 110~130 VAC (E3) Frame size: D Built-in bypass: Yes Communication: Modbus RTU Protection: Overload, overcurrent, phase unbalance, underload, Pt100 thermal monitoring Application: Pump, fan, blower, conveyor, water treatment, HVAC Certification: CE, UL

Components & Diagnostics

Thyristor power module, integrated bypass contactor, control board, graphic HMI, current transformer, cooling fan, status LED. Common faults: thyristor damage, bypass contactor burnout, overcurrent alarm, communication timeout, parameter loss.

Product Brief

SSW900D0312T5E3 soft starter, WEG SSW900 series motor control spare widely used for pump and fan cabinet overhaul and replacement.