DCNHR LITTELFUSE | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 5
Technical content
Littelfuse.com © 2022 Littelfuse, Inc. 081722-A +A1 -A2 NO C
Description
The DCNHR Series 450V High-Current High-Voltage DC Contactor Relay is a normally open (also known as monostable) relay with a resin body for corrosion resistance in harsh automotive environments. Versions are available with a PWM coil to reduce power for keeping the contacts closed. Sealed contacts help ensure there is no leakage of electrical arc for safety. The high-current relay’s permanent magnet blows the magnetic field horizontally to achieve a high-voltage DC cutoff. The DCNHR Series contactor relay is available for 100A, 250A, and 300A contact switching. Web Resources Download 2D print, installation guide and technical resources at: littelfuse.com/DCNHR
Applications
- Battery electric vehicles
- Hybrid electric vehicles
- Electric maintenance vehicles
- Industrial applications Features and Benefits
- Available with 100A, 250A, and 300A contact switching capability
- Normally open relay design
- Resin housing provides corrosion resistance in harsh automotive environments
- Sealed contacts with no leakage of electrical arc for maximum safety
- Built-in energy-saving coil to reduce the coil holding power
- RoHS compliant Electrical Diagram DCNHR SERIES 900V DC MAX CONTACTOR RELAY DCNHRXXXQFXX Specifications Max Voltage Rating (V DC): 900 Current Rating Continuous (A): 100, 250, and 300 Coil Voltage Rating (V DC): 12, 24, 48, 9~36 Ingress Protection: 100: IP 67 250-300 Contact Part Can Meet IP67 Protection Level Operating Temperature (°C): -40 to +85 DCNHR100 +A1 -A2 1 2 K PCBA +A1 -A2 K RED BLACK PCBA +A1 -A2 K RED BLACK DCNHRXXXPFXXDCNHRXXXPFA DCNHRXXXQFA
Littelfuse.com © 2022 Littelfuse, Inc. 081722-A DCNHR SERIES 900V DC MAX CONTACTOR RELAY
Ordering Information
CURRENT (A) VOLTAGE RATING MOUNTING COIL VOLTAGE (V DC) COIL TYPE AUX CONTACT POLARIZEDSYSTEM NOMINAL (V DC) MAX VOLTAGE (V DC) DCNHR100PF12 100 450 900 BOTTOM 12 Single No Yes DCNHR100PF24 100 450 900 BOTTOM 24 Single No Yes DCNHR100PF48 100 450 900 BOTTOM 48 Single No Yes DCNHR100QF12 100 450 900 BOTTOM 12 Single Yes Yes DCNHR100QF24 100 450 900 BOTTOM 24 Single Yes Yes DCNHR100QF48 100 450 900 BOTTOM 48 Single Yes Yes DCNHR250PFA 250 450 900 BOTTOM 9~36 PWM No Yes DCNHR250QFA 250 450 900 BOTTOM 9~36 PWM Yes Yes DCNHR300PFA 300 450 900 BOTTOM 9~36 PWM No Yes DCNHR300QFA 300 450 900 BOTTOM 9~36 PWM Yes Yes
Littelfuse.com © 2022 Littelfuse, Inc. 081722-A Performance Data MAIN CONTACT Contact Arrangement SPST NO Max Short Circuit Current DCNHR100 400A @ 48V DC DCNHR250 2000A @ 320V DC DCNHR300 2000A @ 320V DC Dielectric Withstand Voltage 2200V AC Insulation Resistence ≥ 100MΩ @ 500V DC LIFE Electrical Life DCNHR100 3,000 DCNHR250 1,500 DCNHR300 600 Mechanical Life 200,000 OPERATE / RELEASE TIME Close (ms) 25 Release (ms) 12 ENVIRONMENTAL DATA Shock Shock, 11ms 1/2 Sine, Peak, Operating 20G Vibration DCNHR100 4.4G, 10~200Hz (10μs) DCNHR250, DCNHR300 Vibration, Sine, 80-2000Hz., Peak 20G Operating Ambient Temperature -40°C~+85°C Weight (g) DCNHR100 198 DCNHR250, DCNHR300 398 COIL DATA Voltage Rating (V DC) 12 24 48 9~36 Pickup Voltage @ 25˚C (V DC MAX) DCNHR100 8.4 16.8 33.6 DCNHR250, DCNHR300, 9 Dropout Voltage @ 25˚C (V DC MIN) DCNHR100 1.2 2.4 4.8 DCNHR250, DCNHR300 6 Hold Current (A) DCNHR100 0.51 0.26 0.13 DCNHR250, DCNHR300 0.15@12V DC Coil Watts @ 25˚C (W) DCNHR100 6.5 6.5 6.5 DCNHR250, DCNHR300 45/3 Note: Estimated Make Break Charts and Time Current Curves Coming Soon DCNHR SERIES 900V DC MAX CONTACTOR RELAY AUX CONTACTS Contact Arrangement Normal Open Max. Rating 2A @ 24V DC Min. Rating 0.1A @ 5V DC Max. Resistance ≤500mΩ Note: rated at continuous current rating and system nominal voltage
Littelfuse.com © 2022 Littelfuse, Inc. 081722-A Part Number System DCNHR 200 M F A -01 Series Current Main Contacts Polarization and Aux Contact Main Contacts Voltage Coil Voltage (Optional) Special Code MAIN CONTACTS POLARIZATION AND AUX CONTACT POLARIZED? INCLUDE AUX CONTACT? M: No Yes N: No No P: Yes No Q: Yes Yes MAIN CONTACTS VOLTAGE RATING F: 450 V DC COIL VOLTAGE 12: 12 V DC 24: 24 V DC 48: 48 V DC A: 9 ~ 36 V DC DCNHR SERIES 900V DC MAX CONTACTOR RELAY
Littelfuse.com © 2022 Littelfuse, Inc. 081722-A Application Notes & Definitions
- Be sure to use a washer to prevent screws from loosening. Tighten the screw so that the torque is in the range specified below. Exceeding the maximum torque can lead to product rupture. See the chart below.
- Please refer to the drawing for connection polarity.
- Do not use dropped products.
- Avoid installing the product in a strong magnetic field (Close to the transformer or magnet), or near an object with heat radiation.
- Electrical life Please use under load capability and life cycle so as not to cause a function failure. (Please also 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 happens. So it is necessary to take layout into account to make sure power shall be cut off within 1 second.
- 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 rising by contact energizing).Therefore environment temperature should be from -40 to +85˚C.
- Do not let particle and oil stain on the main terminal with which the load shall make a reliable contact or it will cause a lot of heat. DCNHR SERIES 900V DC MAX CONTACTOR RELAY PRODUCT SERIES PRODUCT MODEL CONTACT TERMINAL COIL TERMINAL MOUNTING HOLE OR BOLT REFERENCE TORQUE HOLE/BOLT/WIRE/TERMINAL REFERENCE TORQUE REFERENCE TORQUE DCNHR100 DCNHR50QF12 DCNHR50QF24 DCNHR50QF48 DCNHR50PF12 DCNHR50PF24 DCNHR50PF48 DCNHR100QF12 DCNHR100QF24 DCNHR100QF48 DCNHR100PF12 DCNHR100PF24 DCNHR100PF48 Hole: M5 3~4N.m Wire: UL1332 22 AWG / 1.7~2.5N.m DCNHR300 DCNHR300PFA DCNHR300QFA DCNHR300NFA DCNHR300MFA Bolt : M8 8~12N.m Wire: UL3321 22 AWG / 1.8~3.5N.m