Siemens SIRIUS Soft starter, screw terminals, 110-250VAC, 25A Part number 3RW5515-1HA14

Product Overview

The Siemens 3RW5515-1HA14 is a SIRIUS 3RW55 soft starter suited for three-phase motor applications. It supports supply voltages of 200-480 V and a rated current of 25 A, with a control voltage of 110-250 V AC and screw-type terminals for wiring.

Key Features

• Soft starter for three-phase motors (series 3RW55)
• Rated current: 25 A at 40 °C
• Supply voltage range: 200-480 V (for motor circuit)
• Control supply voltage: 110-250 V AC
• Screw-type terminals for main and control circuits
• Supports soft ramp-up, ramp-down, bypass contact system
• Adjustable current limitation, breakaway pulse and torque control functions
• Built-in motor overload protection and integrated diagnostics capability

Technical Specifications

• Article Number: 3RW5515-1HA14
• Series: SIRIUS 3RW55 soft-starter family
• Rated Current (Ie): 25 A at 40 °C
• Supply Voltage (Ue): 200…480 V for motor circuit
• Control Supply Voltage: 110…250 V AC
• Motor Power Ratings: 5.5 kW at 230 V; 11 kW at 400 V; 11 kW inside-delta at 230 V; 18.5 kW inside-delta at 400 V (at 40 °C)
• Number of Controlled Phases: 3
• Trip Class: Class 10A / 10E (default) / 20E / 30E per IEC 60947-4-2
• Ambient Operating Temperature: −25 °C … +60 °C
• Storage/Transport Temperature: −40 °C … +80 °C
• Control & Main Terminals: Screw-type connection for both main and control circuits

Compliance & Certifications

• Manufactured under Siemens SIRIUS quality standards
• Conforms to IEC 60947-4-2 for soft starters and motor control equipment
• CE marked and UL/CSA approved where applicable

Applications

The 3RW5515-1HA14 soft starter is used for starting and stopping three-phase motors smoothly in industrial settings, reducing wear and stress on mechanical and electrical components. Common applications include conveyors, pumps, compressors and other motor-driven equipment where gradual start/stop and overload protection is required.