IEC 62841-4-8:2025

Overview

IEC 62841-4-8:2025 is an international standard developed by the International Electrotechnical Commission (IEC) that defines safety requirements and verification procedures for electric motor-operated shredders and chippers. These machines are designed to reduce organic material to smaller pieces in a stationary position, operated by a standing user. This standard specifically applies to hand-fed shredders/chippers with integral electric motors, including models with or without vacuum-assisted collection, where the feed intake openings fit within a 250 mm x 250 mm square.

Importantly, IEC 62841-4-8:2025 supplements and modifies general safety provisions found in IEC 62841-1:2014, adapting them to the specific challenges and risks associated with shredders and chippers. This standard excludes machines powered by combustion engines, machines with powered discharge for broadcasting or loading material, machines with mechanically powered feed, and wood chippers designed for forestry or agricultural use.

Key Topics

• Safety Requirements: Specifies design and construction features to ensure operator safety while handling organic material shredders/chippers.
• Verification Procedures: Requirements for testing mechanical strength, protection against access to hazardous parts, and safe distances around feed openings.
• Feed Intake Dimensions: Machines covered are limited to feed openings fitting inside a 250 mm by 250 mm envelope, addressing accessibility and hazard exposure.
• Operational Hazards: Covers mechanical hazards including thrown objects, rotating blades, and prevention of unintended access.
• Marking and Instructions: Mandates clear and visible safety labels, correct use instructions, and warnings related to risks such as rotating blades, electric shock, and personal protective equipment use.
• Noise and Vibration: Includes guidance on measuring noise and vibration emissions to protect operator health.
• Electrical Safety: Standards for protection against live parts, overheating, moisture resistance, and overload protection.
• Construction and Wiring: Requirements for robust machine construction, internal wiring, flexible cords, and proper grounding.
• Testing Methods: Detailed methods for endurance testing, abnormal operation, and thrown objects test enclosures.
• Battery-Powered Tools: Normative annexes provide requirements and tests for battery tools and battery packs related to shredders/chippers.

Applications

IEC 62841-4-8:2025 is critical for manufacturers, safety engineers, and regulatory bodies involved with the design, testing, certification, and use of electric shredders and chippers, especially:

• Manufacturers of electric shredding and chipping devices for lawn and garden maintenance.
• Testing laboratories performing compliance verification to ensure safe operation and market readiness.
• Procurement specialists specifying equipment meeting international safety standards.
• Safety consultants and employers implementing workplace safety measures for outdoor machinery.
• Regulators and certification bodies adopting safety norms for consumer and professional electric-powered garden tools.

By adopting this standard, stakeholders enhance worker and operator safety, reduce liability risks associated with electrical and mechanical hazards, and support consistent market access worldwide.

Related Standards

• IEC 62841-1:2014 – General safety requirements for electric motor-operated tools and lawn and garden machinery, which IEC 62841-4-8:2025 supplements.
• IEC 60335 series – Safety of household and similar electrical appliances, addressing broader safety requirements that may intersect with garden machinery.
• ISO 12100 – Safety of machinery – General principles for design and risk assessment, relevant for the overall safety design of shredders and chippers.
• EN 60335-2-29 – Particular requirements for lawnmowers and similar machinery, offering complementary safety guidelines.
• IEC 62841-4-9 – Particular requirements for other garden tools, helping create a comprehensive safety framework across garden machinery.

Keywords: IEC 62841-4-8:2025, shredders safety standard, electric chippers safety, lawn and garden machinery safety, hand-fed shredders, electric motor-operated tools, machine safety verification, feed intake safety, operator protection, electrical safety standards.