DCNSEV30 Series - 900V 30A High-Voltage DC Contactor Relay

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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 magnetic arc blowout design and IP67 sealed, gas-filled chamber, the DCNSEV30 Series 900V 30A High-Voltage DC Contactor Relay was developed for electric vehicle (EV) and eMobility applications, such as battery power supply, charging stations, motor control, circuit insulation, and circuit protection. The 30A relay can also be used as a safety device in industrial machinery.

Utilizing polarized contacts, this high-voltage DC contactor performs optimally amidst polarized electrical loads.

The DCNSEV30 Series 30A contactor is available with a 12V dc or 24V dc coil rating.

Features and Benefits

  • High-voltage (900V) DC contactor for electric vehicles (EV), eMobility applications, and industrial machinery
  • 30A current rating ideally suited for pre-charge circuits or small electrical loads
  • Compact structure helps reduce noise when the contactor is turned on
  • Magnetic arc blowout design dissipates any arc between the contacts within an IP67 sealed, gas-filled arc chamber, allowing the relay to make/break higher voltages
  • Lightweight actuator is less impacted by gravity with no mounting orientation restrictions
  • Designed and manufactured under the IATF16949 certification for Automotive Quality Systems
  • Electric vehicle contactor features single-pole, single-throw (SPST), normally open (NO) circuitry
  • Includes wire leads for control circuit

Applications

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

Access specifications, certifications, check availability and order parts below

Catalog #Current Rating (Continuous) in AmpsVoltage Rating MaxCircuitryIngress ProtectionOutput TerminalsContact MaterialHardwareConnectorHousingSamplesCompare
DCNSEV30-B30900SPSTIP67M53.4 - 4.5 Nm (30 - 40 in-lb)M4 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V0Order
DCNSEV30-C30900SPSTIP67M53.4 - 4.5 Nm (30 - 40 in-lb)M4 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V0Order
To request product environmental information, please complete the Product Environmental Information Request Form.

pdf icon Battery Disconnect and Protection

3D Model - DC Contactor Relays

pdf icon Automotive Electronics Applications Guide

This guide provides a summary of key circuit protection consideration factors, descriptions of the technologies Littelfuse offers, and product selection tables. It is designed to help you quickly find a protection solution appropriate to your application.

pdficon DCNSEV30 Datasheet

DCNSEV30 Datasheet

pdficon DCNSEV30 Instruction Sheet

pdficon Relays Brochure

pdficon 2D Print Guide

2D Print Guide

pdficon Contactor Application Note for High Voltage Electric Vehicles

Contactor Application Note for High Voltage Electric Vehicles