DCNEV250 Series - 900V 250A High-Voltage DC Contactor Relay

Series: DCNEV250
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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.

The DCNEV250 Series 900V 250A High-Voltage DC Contactor Relay is designed for electric vehicle (EV) and eMobility applications, including charging station, battery power supply, DC power control, circuit protection, and other switch control applications. The high-current, high-voltage relay can also be used in uninterruptible power supply and other electronic control systems.

A coil economizer greatly 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 250A relay also features a magnetic arc blowout design that dissipates electrical arc between the contacts within an IP67 sealed, gas-filled arc chamber. This design creates a safe EV contactor that allows higher make/break voltages and no electrical arc leakage.

Several configurations are available for the DCNEV250 Series automotive relay, including options with polarized or non-polarized terminals, which allows you to optimize for the polarity of the electrical system. Additional options include configurations with 12-24V dc, 48-72V dc, or 72V dc coil voltage ratings, models with a potted printed circuit board (PCB), and models with or without auxiliary contacts with normally open (NO) or normally closed (NC) circuitry.

Features and Benefits

  • High-current (250A) and high-voltage (900V) DC contactor for electric vehicles (EV) and eMobility applications
  • Compact structure helps reduce noise when the contactor is turned on
  • Coil economizer greatly reduces coil power and heating with signal pulse width modulation (PWM)
  • 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
  • Automotive relay features single-pole, single-throw (SPST) circuitry
  • Polarized and non-polarized contact options optimize performance depending on electrical system load polarity

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 MaterialHardwareConnectorHousingRecommended TorqueTemperature Maximum CelsiusTemperature Minimum CelsiusSamplesCompare
DCNEV250-F250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V08.8 - 11 Nm (80-100 in-lb)85-40Order
DCNEV250-FA250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-FB250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-G250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-GA250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-GAN250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-GB250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-GN250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-M250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-MA250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-MAN250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-MB250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-MN250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
DCNEV250-MP250900SPSTIP67M88.8 - 11 Nm (80-100 in-lb)No.10 with Compression LimitersWire Leads for Control CircuitNylon UL 94-V085-40Order
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pdficon DCNEV250 Datasheet

DCNEV250 Datasheet
pdficon DCNEV250 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