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Key Selling Points

  • DC Isolation
  • PV Ready Coordination
  • Remote Monitoring

Application Tags

PV string isolation between modules... Residential and commercial rooftop p... Maintenance disconnect points in sol...

MODEL REF: TDDH1

TDDH1 Solar DC Isolator Switch

Solar DC Isolator Switch Solar Energy System May 13, 2026 ENGINEERING SUPPORT AVAILABLE

TDDH1 is a solar dc isolator switch for 600V 800V 1000V 1200V DC applications with current options 16A-32A aligned with IEC60947-3

Standard IEC60947-3
Utilization Category DC21B
Rated Insulation Voltage Ui (V) 1200V DC
Rated Operating Voltage Ue (V) 600V 800V 1000V 1200V DC
Rated Current Options 16A, 25A, 32A
Rated Operating Current Ie (A) 16A-32A
Mounting DIN rail
Poles Options 2P, 4P

Core Capabilities

Key Features

Standards Alignment

Built around IEC60947-3 requirements for solar DC applications

DC Ratings

Supports 600V 800V 1000V 1200V DC with current options 16A-32A

Installation Flexibility

DIN rail with configuration options including D2, D2H, D4, D4S, D4B, D4T

Standard

IEC60947-3

Product Brief

Overview

TDDH1 belongs to the solar dc isolator switch range for solar energy system applications. The model is built around IEC60947-3 requirements with operating references of 600V 800V 1000V 1200V DC and current options 16A-32A Installation considerations include DIN rail and protection characteristics such as the specified enclosure rating

  • Standards Alignment
  • DC Ratings
  • Installation Flexibility

Selection

Selection / Use Cases

Use this MCCB when:

PV Distribution

Used where photovoltaic DC-side protection and coordination are required.

Remote Visibility

Fits projects that require monitoring feedback for operation and maintenance.

Project Compliance

Suitable when enclosure and compliance constraints must be reviewed early.

  • Confirm DC system voltage requirement against the model reference range: 600V 800V 1000V 1200V DC.
  • Match string or circuit current demand to the available rating set: 16A-32A.
  • Select the wiring or pole arrangement according to project topology: D2, D2H, D4, D4S, D4B, D4T.

Resources

CAD / Datasheet / Contact

Datasheet Access

Request Datasheet

Electrical ratings, dimensions, and compliance references for project review.

CAD Support

Request CAD

Drawing files and dimensional references for enclosure and panel coordination.

Engineering Contact

Contact Engineer

Confirm selection, accessories, and project requirements with engineering support.

Technical Data

Technical Specs

Standard IEC60947-3
Utilization Category DC21B
Rated Insulation Voltage Ui (V) 1200V DC
Rated Operating Voltage Ue (V) 600V 800V 1000V 1200V DC
Rated Current Options 16A, 25A, 32A
Rated Operating Current Ie (A) 16A-32A
Mounting DIN rail
Poles Options 2P, 4P
Configuration Options D2, D2H, D4, D4S, D4B, D4T
Disconnect Time About 3ms
INDUSTRIAL INTEGRITY

STANDARD COMPLIANCE

All components meet IEC 60947-2 and CE certification standards. ISO 9001:2015 certified manufacturing.

OEM/ODM CAPABILITIES

Custom electrical configurations and private labeling for global infrastructure projects.

ENGINEERING ASSETS

Immediate access to 2D/3D CAD models, STEP files, and detailed technical datasheets.

Request Solar Product Selection Support

Share target voltage, current, and installation conditions to receive model recommendations and quotation support.

  • Response within 24 hours
  • Engineering review included
  • Support for OEM and custom specifications

IEC 60947-2 compliant | ISO 9001 certified manufacturing

PRODUCT ID: TDDH1