DCNEV150 LITTELFUSE | Alldatasheet

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Technical content

© 2022 Littelfuse Commercial Vehicle Products Rev: 050222-C littelfuse.com 1 of 3 Product Datasheet DCNEV150 SERIES HIGH CURRENT HIGH VOLTAGE DC CONTACTOR RELAY Specifications Overview Amperage: 150A Continuous Carry Housing: Nylon UL 94-V0 Voltage Rating: 900V Output Connectors: M8 x 1.25 High Current Connections Connectors: Wire Leads for Control Circuit Ingress Protections: IP67 Operating Temperature: -40°C to 85°C Circuity: SPST NO Working Voltage: 9-36V DC Max Coil Inrush Current: 3.8A Mounting: #10 with Compression Limiters Size: Reference Dimensions on Page 2 Mounting Bolt Torque: 1.7 - 3.3 Nm (15- 30 in-lb) Contact Torque: 8.8 - 11 Nm (80-100 in-lb) Terminals: M8 Silver Plated Copper Approvals: UL File No. E510407 Recognized Features and Benefits

  • High current (150A) and high voltage (900V) contactor for EV Applications
  • Compact structure, helping reduce noise when turned on
  • Coil Enonomizer greatly reduces coil power and heating
  • Sealed IP67, gas-filled relay which mitigates arcing
  • No mounting orientation restrictions
  • Designed and manufactured under the IATF16949 certification for Automotive Quality Systems.
  • Designed specifically for automotive applications. Web Resources Download 2D print and technical resources at: littelfuse.com/DCNEV150

Description

High current and high voltage DC contactor relays for electric vehicle applications such as battery power supply, DC power control, circuit protection, and other switch controls. Can also be used in uninterruptible power supply and other electronic control systems. Available with polarized and non- polarized contacts to best suit electrical systems’ polarity. 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.

Applications

  • Battery Electric Vehicles
  • Hybrid Electric Vehicles
  • Material Handling
  • Electric Maintenance and Transport Vehicles
  • Industrial Applications * Box Packaging Available PART NUMBER DESCRIPTION COIL VOLTAGE 12-24V DC AUXILIARY CONTACT SPST-NO BOTTOM MOUNT NON-POLARIZED TERMINALS DCNEV150-M High Voltage DC Contactor Relay Bottom Mount with Polar Load Terminals • • DCNEV150-MA High Voltage DC Contactor Relay Bottom Mount with Auxiliary Circuit with Polar Load Terminals • • • DCNEV150-MAN High Voltage DC Contactor Relay Bottom Mount With Auxiliary Circuit & Non-Polar Load Terminals • • • • DCNEV150-MN High Voltage DC Contactor Relay Bottom Mount with Non-Polar Load Terminals • • •

Ordering Information

© 2022 Littelfuse Commercial Vehicle Products Rev: 050222-C littelfuse.com 2 of 3 Product Datasheet Dimensions in MM Estimated Make Break Chart DCNEV150 SERIES HIGH CURRENT HIGH VOLTAGE DC CONTACTOREstimated Life (Cycles) Load Current (A) Capacitive Make T est CurveCurrent (A) Time (ms) 68.5 2.70 58.2 2.29 65.7 2.59 (2) 5.8 .23 80.3 3.16 12.7 .50 55.3 2.18 71.8 2.83 COIL WIRES LENGTH: 390 OPTIONAL AUX. CONTACT LENGTH: 390 (2) M8 x 1.25 SCREW TERMINALS OPTIONAL AUX. CONTACT WHITE OPTIONAL WHITE BLACK (-)RED (+) POS. TERM. NEG. TERM. COIL AUX. CONTACT Electrical Diagram 1: For resistive loads with 300uH maximum inductance. 2: The maximum make current is 650A to avoid contact welding. 3: Estimates based on extrapolated data. User to confirm performance in application. MAKE/BREAK LIFE CAPACITIVE & RESISTIVE LOADS AT 320VDC *1 @90% pre-charge (make only), see chart below 50,000 cycles @Min 80% pre-charge (make only), see chart below 50 cycles Electrical Load Life Ratings for T ypical EV Applications 1: Resistive load includes L=25uH. Load @2500A, test @200uH

© 2022 Littelfuse Commercial Vehicle Products Rev: 050222-C littelfuse.com 3 of 3 Product Datasheet Performance Data MAIN CONTACT Contact arrangement 1 Form X (SPST-NO, DM) Rated Operating Voltage 12-900VDC Continuous (Carry) Current 150A -200A (65 ˚C) Make/Break current See chart below Max short circuit current 2,000A @320VDC, 1 cycle * 1 Dielectric Withstanding Voltage Between Contacts: 2,200Vrms, ≤1mA Contact to Coil: 2,200 Vrms, ≤1mA Insulation Resistance *2 Terminal to Terminal/Terminal to coil New: Min 100 MΩ @500Vdc End of life: Min 50 MΩ @500Vdc Voltage Drop (@150A) ≤60mV LIFE Resistive load life See estimated make break chart Mechanical life 200,000 cycles ENVIRONMENTAL DATA Shock, 11ms ½ sine, operating 20G Peak Vibration, Sine, Peak, 20G 80—2,000Hz Operating Ambient Temperature -40 to +85˚C Weight 0.95 Lb (0. 43 kg) Altitude <4000m OPERATE / RELEASE TIME Close (includes bounce) 25ms, Max. Bounce (after close only) 7ms, Max. Release (@2000A includes arc) 12ms, Max. 1: Does not meet dielectric & IR after test. MAX. BREAKING LIMIT MAX. SHORT CIRCUIT 1,500A @ 450VDC, 1 cycle 2,000A, 1 sec AUX. CONTACT Aux. Contact Arrangement 1 Form A Aux. Contact Current Max 2A@30VDC/ 3A@125VAC Aux. Contact Current Min 100mA@8V Max. Contact Resistance 0.417Ω@30VDC 0.150Ω@125VAC Current vs Time Curve Application Note: 1. Be sure to use washer to prevent screws from loosening. Screw tightening torque range is specified as below. Exceeding the maximum torque can lead to product failure.

  • Contact torque (M8): 80 - 100 lb.in (8.8 - 11 N.m)
  • Mounting torque: 15 - 30 lb.in (1 .7 - 3.3 N.m) 2. Contact Terminals are polarized so refer to drawing during connecting. There is a reverse surge absorption circuit so that it is not necessary to use a surge protective device. 3. Do not use if dropped. 4. Avoid installing in a strong magnetic field (close to a transformer or magnet), or near a heat source. 5. Electrical life Use per load capability and life cycle limits so as not to cause a failure. (treat the contactor as a product with specified life and replace it when necessary). It is possible to make parts burn around the contactor once operating failure occurs. It is necessary to take layout considerations into account and to make sure power shall be cut off within 1 second. 6. Lifetime of internal gas diffusion The contactor is sealed and filled with gas, lifetime of gas diffusion is determined by temperature in contact chamber (ambient temperature + temperature generated by contact operation). Operate only in an ambient temperature from -40 to +85 ˚C. 7. If inductive load (L/R>1ms) then a surge current protection device should be connected in parallel to the inductive load. 8. Drive power must be greater than coil power or it will reduce performance capability. 9. Avoid debris or oil contamination on the main terminals to optimize contact and avoid excess heat generation. 10. Unit operates after power applied for 0.1s, do not rapidily switch unit.. COIL DATA Coil Voltage 9-36Vdc Voltage (Max.) 36Vdc Pickup voltage (Max.) 9Vdc Hold voltage (Min.) 7.5Vdc Dropout voltage (Min.) 6Vdc Inrush Current (Max.) 3.8A Holding Currnet (Avg.) 0.13A@12Vdc / 0.07A@24Vdc DCNEV150 SERIES HIGH CURRENT HIGH VOLTAGE DC CONTACTOR