DCNEVT350 Series - 1800V 350A High-Voltage DC Contactor Relay

Series: DCNEVT350
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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.

Ideal for electric vehicle (EV), hybrid electric vehicle (HEV), circuit protection, battery switch, and main power break applications, the DCNEVT350 Series 1800V 350A High-Voltage DC Contactor Relay features a ceramic arc chamber, which allows higher contact voltage capability. The hermetically sealed contact chamber also protects all moving parts, allowing the EV contactor to be used in harsh automotive environments.

The automotive relay is designed with 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.

Polarized contacts enable the high-voltage DC contactor to perform optimally amidst polarized electrical loads.

A sealed wire control connector is included on all models of the DCNEVT350 Series contactor for electric vehicles. The 350A contactor is available with 12V dc or 24V dc coil voltage ratings and with or without an auxiliary circuit.

Features and Benefits

  • High-current (350A) 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
DCNEVT350-B3501800SPSTIP54M66-8 Nm (53-70 in-lb)M6Sealed Control Wire Connector (Included)Aptiv P/N 12162017Nylon UL 94-V085-40Order
DCNEVT350-BA3501800SPSTIP54M66-8 Nm (53-70 in-lb)M6Sealed Control Wire Connector (Included)Aptiv P/N 12162017Nylon UL 94-V085-40Order
DCNEVT350-C3501800SPSTIP54M66-8 Nm (53-70 in-lb)M6Sealed Control Wire Connector (Included)Aptiv P/N 12162017Nylon UL 94-V085-40Order
DCNEVT350-CA3501800SPSTIP54M66-8 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 DCNEVT350 Datasheet

DCNEVT350 Datasheet
pdficon Relays Brochure

pdficon DCNEVT350 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