The most powerful clearing saw in the AP Battery System, the FSA 400 offers versatility with a wide range of optional cutting attachments.
The FSA 400 offers professionals a versatile option for trimming and clearing. As the most powerful clearing saw in the AP Battery System featuring power comparable to the gas-powered FS 361 C-EM, this clearing saw is built for tough jobs. Compatibility with a wide range of cutting options means pros can tackle work in a variety of applications. It is available in a long-shaft version for higher volume grass cutting. Besides being fully capable of getting the job done right, the FSA 400 is also designed for user comfort with an ergonomic control handle and anti-vibration system.

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FSA 400 (Unit Only) Features & Benefits

  • Hanging Loop
    Hang your cordless trimmer securely on a wall to save space using the loop in the handle housing.
  • High-Tech Polymer Housing
    Housings are lightweight, withstand greater impact, and are corrosion-resistant.
  • IPX4 Rating
    This tool is IPX4-rated weather-resistant construction and has been designed and tested for splash water protection.
  • Retaining Latch
    All STIHL battery-powered products feature a retaining latch that is designed to prevent the unit from unintentional starts when the battery is inserted.
  • Rubberized Soft-Touch Handle
    Soft rubber texture is both easy to grip and makes the product comfortable to hold for extended periods.
  • STIHL Electric Motor
    Lightweight and compact, STIHL electric motors require minimal maintenance and feature low noise levels and reduced vibration.
  • Star/Run/Stop Controls on Handle
    Controls on Handle
  • Most Powerful Battery-Powered Clearing Saw in the STIHL Lineup
    With power comparable to the gas-powered FS 361 C-EM trimmer, the FSA 400/400 K is the most powerful battery clearing saw in the STIHL lineup and offers users the professional performance they need to take on tough jobs.
  • Egonomic Control Handle
    This trimmer offers convenience and maneuverability with all controls located on the ergonomic control handle.
  • Anti-Vibration System
  • The FSA 400/400 K features handlebar support with anti-vibration system to help reduce operator fatigue.
  • Extensive Selection of Cutting Attachments
    Compatible with an extensive selection of cutting attachments including various types of line and cutting blades, the FSA 400/400 K can be adapted for a wide range of applications, making it optimal for professional use.

FSA 400 (Unit Only) Specs & Compare

Rated voltage36 V
Max. voltage40 V
Power consumption2.60 kW
Power2 kW 1)
Cordless power systemAP
Recommended batteryAP 500 S
Device weight without battery15.7 lb 2)
Cutting circle diameter520 mm
IP RatingIPX4
Min. battery working time AP 300 S with line mowing head12 min 3)
Max. battery working time AP 300 S with line mowing head20 min 3)
Min. battery working time AP 300 S with plastic blade mowing head16 min 3)
Max. battery working time AP 300 S with plastic blade mowing head29 min 3)
Min. battery working time AP 300 S with metal blade20 min 3)
Max. battery working time AP 300 S with metal blade40 min 3)
Min. battery working time AP 500 S with line mowing head15 min 3)
Max. battery working time AP 500 S with line mowing head25 min 3)
Min. battery working time AP 500 S with plastic blade mowing head20 min 3)
Max. battery working time AP 500 S with plastic blade mowing head40 min 3)
Min. battery working time AP 500 S with metal blade25 min 3)
Max. battery working time AP 500 S with metal blade50 min 3)
Device length without cutting tool179 cm

1)Mechanical power as comparative value to petrol appliance2)without cutting tool and protection3)The indicated working times per battery charge are indicative and may vary depending on the application and operating mode