SHR2DN Heavy LoadSoft Starter

Function

The MV/HV soft starter series represents advanced motor control technology designed for industrial 3 phase soft starter applications. These units incorporate built-in bypass functionality for continuous operation without external contactors.

1. Power Ratings & Configuration
   The MV/HV soft starter accommodates motors from 4kW to 800kW across voltage ranges (230V-690V). Each 3 phase soft starter model features:

• Built-in bypass contacts rated for continuous duty

• Current handling from 17A to 950A

• Dual voltage adaptation for global 3 phase soft starter applications

2. Control Characteristics
   Every MV/HV soft starter provides:

• Adjustable initial voltage (10-80% Un)

• Current limiting (100-500% FLA)

• Programmable ramp times (1-90s)
  The 3 phase soft starter includes 6 pump-specific curves to prevent water hammer through its built-in bypass control.

3. Protection Systems
   The MV/HV soft starter delivers comprehensive safeguards:

• Electronic overload (75-150% FLA)

• Phase loss/sequence monitoring

• Instantaneous short-circuit protection
  All 3 phase soft starter units integrate MOV/snubber circuits with built-in bypass fault isolation.

4. Specialized Functions

• MV/HV soft starter models support generator-mode starting

• 3 phase soft starter energy-saving algorithms activate during light loads

• Built-in bypass enables uninterrupted operation during SCR failures

5. Communication & Interface
   Standard MV/HV soft starter features include:

• RS485 with Modbus/Profibus

• LCD display (4 languages)

• 6-key programming interface
  The 3 phase soft starter provides analog I/O for system integration via its built-in bypass monitoring contacts.

6. Mechanical Design

• MV/HV soft starter enclosures rated IP20-IP54

• 3 phase soft starter thermal management with 85°C trip point

• Built-in bypass components UL/CE certified

7. Environmental Compliance
   All MV/HV soft starter units operate at:

• Temperature: 0°C to +50°C

• Humidity: ≤95% non-condensing
  The 3 phase soft starter maintains performance through built-in bypass heat dissipation.

8. Application Guidelines

• MV/HV soft starter recommended for pumps/compressors

• 3 phase soft starter required for heavy-duty mills/mixers

• Built-in bypass essential for critical processes

9. Protection Coordination
   The MV/HV soft starter coordinates with:

• Motor insulation monitoring (0.2-5MΩ)

• External fault inputs

• 3 phase soft starter electronic"shear pin"(850% In)
  Built-in bypass includes fault-safe contacts.

10. Installation Requirements

• MV/HV soft starter requires 3-wire connection

• 3 phase soft starter needs proper phase sequence

• Built-in bypass requires 30s cool-down between starts

11. Technical Compliance
    All MV/HV soft starter designs meet:

• IEC 60947-4-2 standards

• 3 phase soft starter harmonic limits

• Built-in bypass safety certifications

12. Ordering Information
    Specify:

• MV/HV soft starter current rating

• 3 phase soft starter voltage class

• Built-in bypass option code

Parameters:

Measurement