---
title: Automated Gate Safety UK: BS EN 12453, Force Limits | Koyda
url: https://www.koyda.com/guides/automated-gate-safety/
description: Automated and powered gate safety in the UK: BS EN 12453 and BS EN 13241, the Supply of Machinery (Safety) Regulations 2008, force limits, testing and handover.
last_modified: 2026-10-11
publisher: Koyda Ltd, Units 27–29 Jesmor Farm, St Piers Lane, Lingfield, Surrey RH7 6PN. 07753 213617, joe@koyda.com
---

Technical guide

# Automated Gate Safety Basics

What the law and standards expect for powered gates in the UK: who is responsible, which standards apply, the force limits used in testing, and what should be handed over.

Last reviewed 11 October 2026 · Koyda Ltd

Quick answer

A powered gate is a machine. In Great Britain it must meet the Supply of Machinery (Safety) Regulations 2008, with a Declaration of Conformity, technical file, marking and user instructions. BS EN 12453 sets safety-in-use requirements, including force limits of 400 N at crushing points and 1,400 N for impact only. HSE says meeting the standards alone may not be enough.

Cite this: Koyda Ltd, “Automated Gate Safety Basics”, https://www.koyda.com/guides/automated-gate-safety/, reviewed 11 October 2026.

## Quick reference

| Item | Requirement | Source |
| --- | --- | --- |
| Law (GB) | Supply of Machinery (Safety) Regulations 2008 | SMR 2008, HSE |
| Product standard | BS EN 13241:2003+A2:2016; Declaration of Performance where in scope | HSE |
| Safety in use | BS EN 12453:2017+A1:2021 | HSE, BSI |
| Mechanical safety | BS EN 12604:2017 | HSE |
| Crush, shear, draw-in | 400 N max dynamic force | BS EN 12453 via HSE, DHF TS 011 |
| Impact only | 1,400 N max | BS EN 12453 via HSE, DHF TS 011 |
| Force duration | Above 150 N for 0.75s max; above 25 N for 5s max | DHF TS 011:2019 |
| Handover | Declaration of Conformity, instructions, maintenance and force-test details | HSE |

## Key points

* A powered gate is a machine: the Supply of Machinery (Safety) Regulations 2008 apply.
* BS EN 12453 sets safety in use; BS EN 13241 is the product standard.
* Force limits: 400 N at crush points, 1,400 N for impact only, with time limits.
* Test forces after installation and at service, and hand over full documentation.

Terms explained in the [A–Z glossary](https://www.koyda.com/guides/glossary/).

Download

[Quick reference PDF ↓](https://www.koyda.com/downloads/koyda-automated-gate-safety-quick-reference.pdf)

Two-page summary of the figures on this page, with sources. Free to share with credit to Koyda Ltd.

## Main hazards

* Crushing at closing edges, hinges and between the gate and fixed objects.
* Shearing and drawing-in at sliding gates and rollers.
* Impact from the moving leaf.
* Gates falling or becoming detached.

## Protection measures

* Design out gaps where possible, for example with guards and safe distances.
* Force limitation, tested with calibrated equipment after installation.
* Safety edges and photocells, which are safety components and must meet the machinery regulations.
* Anti-fall and anti-derailment devices; manual release for power failure.

## Handover and maintenance

Hand over the Declaration of Conformity, user instructions, maintenance requirements and, where force limitation is used, the limits and how to check them. Keep maintenance and test records. Owners should stop using a gate that does not work safely.

Koyda designs and fabricates gate structures and metalwork. The automation itself should be supplied and commissioned by a specialist installer who takes on the machinery duties.

## Frequently asked questions

Who is responsible for automated gate safety?

Whoever makes the powered gate is the manufacturer (the Responsible Person) under the Supply of Machinery (Safety) Regulations 2008. HSE says that in most cases this includes an installer who assembles a gate from components or converts a manual gate to power. Those in control of the site must keep the gate safe and maintained.

What are the force limits for automated gates?

Under BS EN 12453, as summarised by HSE and the DHF, the dynamic force must not exceed 400 N at crushing, shearing and drawing-in points, and 1,400 N where there is only an impact hazard. Force above 150 N must last no more than 0.75 seconds, and above 25 N no more than 5 seconds.

Is BS EN 13241 enough to show a gate is safe?

No. HSE has said that the standards in the BS EN 13241 package do not fully meet the essential health and safety requirements of the machinery rules. Designers should assess risks beyond the standards, for example with additional safety edges or photocells.

Does an automated gate need UKCA marking?

A powered gate placed on the market or put into service in Great Britain must carry the conformity marking required by the Supply of Machinery (Safety) Regulations 2008, with a Declaration of Conformity. Check current GOV.UK guidance on whether UKCA or CE marking applies.

How often should automated gates be maintained?

Follow the manufacturer's instructions and the risk assessment. The DHF code of practice recommends regular maintenance and force testing by a competent person with calibrated equipment, with records kept.

## Sources

1. [HSE safety bulletin: revision of standards for powered doors, gates and barriers](https://www.hse.gov.uk/safetybulletins/revision-standards-powered-doors.htm)
2. [HSE: powered gates, legal responsibilities](https://www.hse.gov.uk/work-equipment-machinery/powered-gates/responsibilities.htm)
3. [The Supply of Machinery (Safety) Regulations 2008 (legislation.gov.uk)](https://www.legislation.gov.uk/uksi/2008/1597/contents)
4. [DHF TS 011:2019 code of practice for automated gates and traffic barriers (Door & Hardware Federation)](https://www.dhfonline.org.uk/)
5. [GOV.UK: using the UKCA marking](https://www.gov.uk/guidance/using-the-ukca-marking)

General guidance only, not design advice for a specific project. Building regulations guidance changes: check the current edition of each document, and get project-specific design from a competent engineer. Koyda Ltd accepts no liability for decisions made using this page.

ContentsGuide

1. [Quick reference](#quick)
2. [Main hazards](#risks)
3. [Protection measures](#protect)
4. [Handover and maintenance](#handover)
5. [Frequently asked questions](#faq-h)

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