IEC 62841-3-9:2020

Overview

IEC 62841-3-9:2020 is the IEC safety standard that sets particular requirements for transportable mitre saws driven by electric motors. It applies to mitre saws intended for cutting wood and analogous materials, plastics and non‑ferrous metals (except magnesium) using toothed saw blades up to 410 mm diameter. This second edition (2020) cancels and replaces the 2014 edition and is intended to be used in conjunction with IEC 62841-1:2014 (the common Part 1 requirements).

The standard defines scope, terminology and tests specific to transportable mitre saws and clarifies exclusions - for example, it does not cover mitre saws with automatic feed, tools for cutting ferrous metals (steel, iron, magnesium), tools designed for abrasive wheels, or combined mitre/table saw machines (these are covered by other parts of the IEC 62841 series).

Key topics and technical requirements

IEC 62841-3-9 supplements Part 1 and addresses mitre-saw‑specific hazards and tests, including:

• Scope and definitions specific to mitre saws (bevel angle, compound angle, cutting edge zone, fully down position, horizontal cutting capacity).
• Mechanical hazards and guarding - requirements for blade guards, fence and centre workpiece supports, safe geometry and access prevention.
• Construction and mechanical strength - design and durability expectations for moving parts, saw tables and fences.
• Electrical safety and wiring - internal wiring, components, earthing and supply connections consistent with Part 1.
• Performance tests - endurance, abnormal operation, heating, overload and component evaluations.
• Noise and vibration - measurement procedures are provided in informative annexes for emission labeling.
• Battery-powered variants - normative annexes cover battery tools and packs, and tools with non-isolated sources.
• Marking and instructions - required safety information, operating instructions and warnings for users.

Normative references include ISO 180 (Izod impact strength) and other IEC parts. The 2020 revision increased the maximum blade diameter from 360 mm to 410 mm and incorporated previous corrigenda.

Practical applications - who uses this standard

• Mitre saw manufacturers for product design, safety engineering and CE/market compliance.
• Test laboratories and certification bodies for type testing, conformity assessment and issuing safety approvals.
• Product safety and compliance engineers to align documentation, warnings and instructions with regulatory expectations.
• Distributors and professional users (workshop safety managers, trade associations) to understand required safeguards and performance claims.

Related standards

• IEC 62841-1:2014 - General requirements for electric hand‑held and transportable tools (used in conjunction).
• IEC 62841-3-10 - Transportable tools designed for abrasive wheels.
• Future parts of IEC 62841-3 are intended to cover transportable saws for ferrous metals and combined mitre/table saws.

Keywords: IEC 62841-3-9:2020, transportable mitre saw, mitre saw safety standard, hand‑held tools, saw blade diameter 410 mm, IEC 62841.