FG Series

50A High Current Battery Connector

The FG Series 50A High-Current Battery Connector is a high-reliability drawer connector engineered for demanding energy storage and power distribution systems. It integrates high-power capacity and signal transmission into a compact design optimized for blind-mating applications. Provided as a complete harness; Connectors not sold separately. Please contact our sales representative regarding the cables and harnesses to be used.

Key Features

Features

  • Each power terminal handles a maximum of 50A
  • Combining 2-pin power terminals with 6-pin signal terminals saves space.
  • Multiple clamping contact structure prevents contact buckling and improves reliability through stable contact force (power terminal: 8-point contact; signal terminal: 2-point contact).
  • Guide mechanism absorbs mating errors of ±3.5mm in the X direction and ±2.8mm in the Y direction.
  • The screw fastening portion of the plug-side connector is movable, allowing a maximum tolerance of ±0.7mm in the XY directions.
  • Highly reliable design with effective mating lengths of 3.0mm for the power terminal and 2.4mm for the signal terminal, supporting hot swap.

Specifications

Insulator Material[FG01] PBT (glass-filled reinforced) UL94V-0 material, color: black
[FG11] PA9T (glass-filled reinforced) UL94V-0 material, color: black
Signal/Power Contact Material[FG01] Copper alloy
[FG11] Brass
Signal Contact Plating[FG01] Nickel plating base
(Contact area) gold-plated finish (Crimped section) nickel-plated finish
[FG11] Nickel plating undercoat
(Contact area) gold-plated finish (Tail section) tin-plated finish
Power Contact Plating[FG01] Nickel plating base
(Contact area) gold-plated finish (Soldering parts) gold-plated finish
[FG11] Nickel plating undercoat
(Contact area) gold-plated finish (Soldering parts) tin-plated finish
Washer / Rivet MaterialStainless steel
Rated CurrentSignal contacts: 3A per contact (AWG#18/20)
Power contacts: 50A per contact (AWG#6), 40A per contact (AWG#8)
Contact ResistanceSignal contact: 10 mΩ or less
Power contact: 3 mΩ or less
Dielectric Withstand VoltageSignal contact: AC 1,000V, 1 minute
Power contact: AC 2,000V, 1 minute
Insulation ResistanceDC 500V, 1,000 MΩ or more
Operating Temperature Range-55°C to +105°C
Insertion/Removal Durability500 times
Compatible CablesSignal contacts: AWG#18/20 (Cable outer diameter of cable coating: φ1.8~2.8mm) discrete cable
Power contacts: AWG#6/8

Product List & Technical Data

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Part numberNo. of contactsConnection typeCurrent ratingTypeRoHSRecommended CableOther features3D-CAD (IGS)3D-CAD (STEP)
FG01-066DrawerPower: 50A / Signal: 3Areceptacle (cable side connector)CompliantPower: AWG#6/8, Signal: AWG#18/2050A Drawer Connector; Hybrid 2-power/6-signal; 8-point power/2-point signal contact; hot swap supportDownloadDownload
FG11-066DrawerPower: 50A / Signal: 3Aplug (cable-relay type)CompliantPower: AWG#6/8, Signal: AWG#18/2050A Drawer Connector; Hybrid 2-power/6-signal; floating screw-mount (+/-0.7mm XY tolerance); hot swap supportDownloadDownload

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Why KEL

Flexible Customization & Consultation

Flexible Customization & Consultation

Renowned for industry-leading expertise in floating connectors, we can assist you through the entire process of creating custom solutions. We have many years of experience in connector peripheral development, design, and manufacturing.

Top-Quality Products Made in Japan

Top-Quality Products Made in Japan

A fully automated production line for floating connectors is now in operation with a Class 100,000 cleanroom at our plant located in Japan’s Yamanashi Prefecture.

ISO & IATF Certified

ISO & IATF Certified

We are ISO9001/14001 and IATF16949 certified and registered.

Custom Solutions

Custom Solutions

With technology cultivated over 60 years, we pursue miniature, reliable and high functionality

Transmission Simulation

Transmission Simulation Data

Our development department can replicate similar customer conditions and provide you with accurate simulation data.