DCNLB LITTELFUSE | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 4

Technical content

Littelfuse.com © 2022 Littelfuse, Inc. 081122-A

Description

Designed for the electric control systems of communication power supplies, uninterruptible power supplies (UPS), engineering machines, and more, the DCNLB Series 48V High-Current DC Contactor Relay is a normally closed relay that is available in single-coil and double-coil configurations. The high-current contactor relay is also available with coil voltage ratings of 24V , 48V , and 60V to suit various applications. Web Resources Download 2D print, installation guide and technical resources at: littelfuse.com/DCNLB

Applications

  • Communication Power Supplies
  • UPS Features and Benefits
  • Up to 200A continuous current rating for high-current contact switching
  • Able to make and break up to 1600A
  • Main contacts are rated for 48V (typical) and 60V (max)
  • Coil voltage options include 24V , 48V , and 60V
  • Normally close, monostable relay design
  • Available in single-coil and double-coil configurations
  • Non-polarized contacts DCNLB SERIES 60V DC MAX CONTACTOR RELAY Specifications Max Voltage Rating (V DC): 60 Current Rating Continuous (A): 100, 200 Coil Voltage Rating (V DC): 24, 48, 60 Ingress Protection: IP 40 Operating Temperature (°C): -40 to +85 Electrical Diagram K1 2 Dual CoilSingle Coil

Littelfuse.com © 2022 Littelfuse, Inc. 081122-A DCNLB SERIES 60V 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) DCNLB100NB48 100 48 60 SIDE MOUNT 48 Single No No DCNLB200NB24 200 48 60 SIDE MOUNT 24 Single No No DCNLB200NB48 200 48 60 SIDE MOUNT 48 Single No No DCNLB200NB60 200 48 60 SIDE MOUNT 60 Single No No DCNLB200NB48-01 200 48 60 SIDE MOUNT 48 Dual No No MAIN CONTACT Contact Arrangement SPST NC Rated Operating Voltage 48V DC Max Short Circuit Current DCNLB100NB 400A @ 48V DC DCNLB200NB 800A @ 48V DC Dielectric Withstand Voltage 1000V AC Insulation Resistence ≥50MΩ @ 500VDC Max Voltage Drop ≤ 50mV @ 100A LIFE Electrical Life 3,000 Mechanical Life 100,000 OPERATE / RELEASE TIME Release (ms) DCNLB100NB DCNLB200NB 50 DCNLB200NB48-01 30 ENVIRONMENTAL DATA Shock 3G Vibration 1~50Hz (freq.1~10Hz, amp;.25/f²; freq.10~50Hz, ampl.250/f²) Operating Ambient Temperature -40°C~+85°C Weight (g) DCNLB100NB 193.3 DCNLB200NB 535 COIL DATA Voltage Rating (V DC) 24 48 60 Pickup Voltage @ 25˚C (V DC MAX) 15 30 37 Dropout Voltage @ 25˚C (V DC MIN) 2 4 5 Hold Current (A) DCNLB100NB48 0.23 DCNLB200NB24 0.4 DCNLB200NB48 0.26 DCNLB200NB60 0.24 DCNLB200NB48-01 0.12 Coil Watts @ 25˚C (W) DCNLB100NB48 11 DCNLB200NB24 10 DCNLB200NB48 12 DCNLB200NB60 14.5 DCNLB200NB48-01 230/8 Start-Up 180 180 Hold 8 8

Littelfuse.com © 2022 Littelfuse, Inc. 081122-A DCNLB SERIES 60V DC MAX CONTACTOR RELAY Part Number System DCNLB 200 N B 24 -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? N: No No MAIN CONTACTS VOLTAGE RATING B: 48 V DC COIL VOLTAGE 24: 24 V DC 48: 48 V DC 60: 60 V DC

Littelfuse.com © 2022 Littelfuse, Inc. 081122-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.
  • 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.
  • 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. DCNLB SERIES 60V 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 DCNLB100NB48 DCNLB100NB48 DCNLB200NB24 DCNLB200NB48 DCNLB200NB60 DCNLB200NB48-01 DCNLB200NB48-01