About NPSA
About NPSA

The UK Government’s National Technical Authority for Physical and Personnel Protective Security.
- Who We Work With
  
  NPSA works with partners in government, police, industry and academia to reduce the vulnerability of the national infrastructure.
- Frequently Asked Questions
  
  Frequently asked questions about NPSA.
- Threat Information
  
  Understanding the threats facing your business or organisation will ensure protective security measures are proportionate, effective and responsive
- NPSA Blog
  
  The NPSA blog provides thought leadership, latest news and updates on protective security.
Protective Security
Protective Security

Implementing effective protective security measures will help to protect your organisation from threats.
Advice & Guidance
Advice & Guidance

Our advice & guidance outlines the steps to take when implementing protective security measures.
- Physical Security
- Personnel & People Security
- Incident Management
- Personal Safety and Security for High-Risk Individuals
  
  This content is designed for individuals that have heightened risk affecting their personal safety and security
Learning & Resources
Learning & Resources

We provide information and resources to support the promotion of security awareness across your organisation.
- Security Campaigns
  
  NPSA has developed a series of security awareness campaigns, designed to provide organisations with a complete range of materials they need.
- Digital Learning
  
  Online learning modules relating to Protective Security.
- Think Before You Link
  
  'Think Before You Link' will help you to protect yourself, your colleagues, and your organisation from the harmful impact of online malicious profiles.
- Catalogue of Security Equipment
  
  The Catalogue of Security Equipment (CSE) is available to help security practitioners to identify appropriate physical security equipment. The CSE provides a range of products that have been evaluated against specific NPSA security standards and the performance rating achieved.

Detection Systems Product Comparison

Elmdene International Ltd

Elmdene VS 303 Biased Reed Switch

Category: Detection Systems

Sub Category: Protective Switches (Indoor)

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Description

The Elmdene VS303 is a large surface mounted contact, for use on ferromagnetic and non ferromagnetic applications in both indoor and sheltered outdoor locations.

Download PDF Manufacturer Details

Specification

Housing material: Extruded Aluminium

Size - contact: 109mm x 38mm x 19mm

Size - magnet: 109mm x 38mm x 19mm

Fixing dimensions 89mm/3.5" centres

(contact):

Fixing dimensions 89mm/3.5" centres

(magnet):

Switching voltage: <=100V dc

Switch contact rating: 0.25A max

Connection: Integral 4 way armoured cable 1m

IP Rating: IP67