DCNEVT400 Series - 1800V 400A High-Voltage DC Contactor Relay

Series: DCNEVT400
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Featuring a ceramic arc chamber that enables a high contact voltage capability, the DCNEVT400 Series 1800V 400A High-Voltage DC Contactor Relay is designed for electric vehicle (EV), hybrid electric vehicle (HEV), circuit protection, battery switch, and main power break applications. The contact chamber of this single-pole, single-throw (SPST), normally open (NO) contactor is hermetically sealed to protect all moving parts.

The DCNEVT400 Series electric vehicle contactor also features a coil economizer that reduces coil power and heating after the contactor is energized. Once the contactor is energized, it takes minimal coil power to keep the contacts closed due to pulse width modulation (PWM) reducing the average power delivered by pulsing the electrical signal.

This automotive relay has polarized contacts, so it performs optimally amidst polarized electrical loads.

A sealed wire control connector is included on all configurations of the DCNEVT400 Series EV contactor. Available configurations include models with 12V dc or 24V dc coil voltage ratings and models with or without an auxiliary circuit.

Features and Benefits

  • High-current (400A) and high-voltage (1800V) DC contactor for electric vehicles (EV) and eMobility applications
  • Coil economizer greatly reduces coil power and heating with signal pulse width modulation (PWM)
  • Hermetically sealed contact chamber protects all moving parts, allowing use in harsh automotive environments
  • Ceramic arc chamber enables higher contact voltage capability
  • Sealed wire control connector included
  • Designed and manufactured under the IATF16949 certification for Automotive Quality Systems
  • Electric vehicle contactor features single-pole, single-throw (SPST), normally open (NO) circuitry
  • Available with or without an auxiliary circuit

Applications

  • Battery Electric Vehicles (BEV)
  • Hybrid Electric Vehicles (HEV)
  • Material Handling
  • Electric Maintenance and Transport Vehicles
  • Industrial

Product Literature

High Voltage DC Contactor Relays 3D model landing page Relays Brochure Right Side Content

Access specifications, certifications, check availability and order parts below

Catalog #Current Rating (Continuous) in AmpsVoltage Rating MaxCircuitryIngress ProtectionOutput TerminalsContact MaterialHardwareConnectorHousingTemperature Maximum CelsiusTemperature Minimum CelsiusSamplesCompare
DCNEVT400-B4001800SPSTIP54M66-8 Nm (53-70 in-lb)M6Sealed Control Wire Connector (Included)Aptiv P/N 12162017Nylon UL 94-V085-40Order
DCNEVT400-BA4001800SPSTIP54M66-8 Nm (53-70 in-lb)M6Sealed Control Wire Connector (Included)Aptiv P/N 12162017Nylon UL 94-V085-40Order
DCNEVT400-C4001800SPSTIP54M66-8 Nm (53-70 in-lb)M6Sealed Control Wire Connector (Included)Aptiv P/N 12162017Nylon UL 94-V085-40Order
DCNEVT400-CA4001800SPSTIP54M66-8 Nm (53-70 in-lb)M6Sealed Control Wire Connector (Included)Aptiv P/N 12162017Nylon UL 94-V085-40Order
To request product environmental information, please complete the Product Environmental Information Request Form.

pdficon DCNEVT400 Datasheet

DCNEVT400 Datasheet
pdficon Relays Brochure

pdficon DCNEVT400 Instruction Sheet

pdficon 2D Print Guide

2D Print Guide
pdficon DC Contactor Selection Guide

DC Contactor Selection Guide
pdficon Contactor Application Note for High Voltage Electric Vehicles

Contactor Application Note for High Voltage Electric Vehicles
pdficon Littelfuse-Commercial Vehicle Catalog

Littelfuse-Commercial Vehicle Catalog