Legrand DPX³ 160 Thermal Magnetic Circuit Breakers and DPX³-I 160 Trip-Free Switches

Introduction

The DPX³ platform offers advanced protection devices for precise current control in various installations. It provides a comprehensive solution for medium power applications, featuring high-performance breakers in compact dimensions at a competitive cost.

Product Range

DPX³ 160 Thermal Magnetic Circuit Breakers

Available in 3-pole and 4-pole configurations with breaking capacities of 16 kA and 25 kA.

DPX³-I 160 Trip-Free Switches

Available in 3-pole and 4-pole configurations with breaking capacities of 16 kA, 25 kA, 36 kA, and 50 kA.

Technical Characteristics

Electrical Characteristics (DPX³ 160)

Electrical Characteristics (DPX³-I 160)

Key Specifications:

• Rated Insulation Voltage (Ui): 800 V
• Rated Operating Voltage (Ue): 690 V
• Rated Impulse Withstand Current (Uimp): 8 kV
• Rated Frequency: 50 Hz - 60 Hz
• Operating Temperature: -25 °C to 70 °C
• Electrical Endurance at In: 8000 cycles
• Electrical Endurance at 0.5 x In: 10000 cycles

Mechanical Characteristics

• Mechanical Endurance: 25000 cycles
• Mechanical Endurance with Motor Control: 25000 cycles

Installation Rules

Temperature deratings are provided based on ambient temperature and installation conditions. The table indicates maximum long-time protection setting based on ambient temperature.

Derating factors for various cable types and connection methods (fixed vertical/horizontal installation) are detailed in the technical data sheet.

Altitude Derating:

Dimensions and Weight

Dimensions (mm)

• 3P (W x H x D): 80 x 130 x 97
• 4P (W x H x D): 110 x 130 x 97

Detailed diagrams for fixed versions, front terminals, side motor operators, direct rotary handles, and vari-depth rotary handles are provided.

Weight (kg)

Connections

Various connection methods are supported, including:

• Busbars
• Cable lugs
• Cables
• Extended front terminals
• Cage terminals

Specifications for cage terminal capacity and cable cross-sections for both standard and high-capacity terminals are detailed.

DC Connections Modality

Diagrams illustrate DC connection configurations for breakers and trip-free switches (polarity can be inverted).

Equipments and Accessories

Releases

• Shunt releases (ST)
• Undervoltage releases (UVR)
• Time-lag undervoltage releases

Auxiliary Contacts

• Standard auxiliary contact (OC) / Fault signal (CTR)
• Set of connectors for auxiliary contacts
• Auxiliary contacts (1NC and 1 NO)
• Signal contact for plugged-in version

Rotary Handles

• Direct on DPX³ (with auxiliary option)
• Vari-depth handle IP55 (with auxiliary option)
• Direct on DPX³ (general purpose)
• Vari-depth handle IP55 (general purpose)

Locking Accessories

Accessories for rotary handles and general purpose rotary handles are available.

Motor Operators

• Side motor operator (24 - 230 V~)

Mechanical Accessories

• Padlocks for locking in "open" position
• Insulated shields (phase barriers)
• Sealable terminal shields
• Fixing plates in XL³ for transfer switches
• Fixing plates in XL³

Connection Accessories

• Front spreaders
• Rack screw and nut
• Cage terminals (standard and high capacity)

Marking

Products are labeled in conformity with IEC/EN standards and directives. Labels include manufacturer information, product denomination, standard conformity, and declared characteristics.

Product Laser Label (front face): Contains manufacturer, product type, standard conformity, declared characteristics, and Icu identification.

Product Sticker Label (on the side): Includes manufacturer, product denomination, standard conformity, directive requirements, barcode, and country of manufacture.

Packaging Sticker Label: Features manufacturer details, product denomination, standard conformity, directive requirements, barcode, and country of manufacture.

Curves

Thermal Magnetic Tripping Curve

The document includes a graph illustrating the thermal magnetic tripping curve, showing tripping time versus current (I/In) for different rated currents (In) and magnetic trip settings (li).

Pass-through Specific Energy Characteristic Curve

A graph displays the pass-through specific energy (I²t) as a function of short circuit current (Icc) for various rated currents.

Cut-off Peak Current Characteristic Curve

A graph illustrates the cut-off peak current (Ip) as a function of short circuit current (Icc) for different rated currents.

Standards and Regulations

DPX³ and DPX³-I products comply with IEC/EN standards 60947-2 and 60947-3.

They also comply with European Directives:

• RoHS: Restriction of Hazardous Substances (2011/65/EU, amended by 2015/863/EU).
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals (Regulation (EC) No 1907/2006).
• WEEE: Waste Electrical and Electronic Equipment Directive (2012/19/EU).
• Packaging: Compliant with European Directive 94/62/CE.

Other Information

XLPro Calcul: Software for creating calculation notes for installers, design offices, and maintenance operators.

XLPro³ Tool Selectivity and backup: Software for defining selectivity and backup values and obtaining tripping curves.

XLPro Panels: Software for designing electrical distribution, creating diagrams, and costing projects.

Workshop book: Available on e-catalog for mounting information, equipment, accessories, and spare parts.

PEP: Available on e-catalog.

For further technical information, contact Legrand technical support.