Silver metal power strip with four UK sockets and Silicon CPV Tempest branding.

TEMPEST & HEMP Filters

Protect sensitive equipment from electromagnetic interference and compromising emanations with compliant TEMPEST and HEMP filtering solutions.

Designed for defence, government and secure facilities, Silicon CPV's range supports SDIP-29 protected installations, SDIP-27 equipment hardening requirements, and CE-compliant deployments across fixed, mobile and shielded environments.

Product overview

Secure power filtering for critical environments

Silicon CPV provides a comprehensive range of TEMPEST and HEMP filters designed to protect electronic systems from electromagnetic interference (EMI), conducted emissions and high-energy pulse events.

Available in plug-in, inline, rack-mounted and shielded room configurations, these solutions help organisations maintain operational security, meet compliance requirements and protect mission-critical equipment.

Key features and benefits

Designed for secure operations

Supports TEMPEST-compliant installations
Helps reduce electromagnetic emissions and interference
Protects sensitive equipment and communications systems
Suitable for defence, government and critical infrastructure environments
Available for mobile, fixed-site and shielded facility deployments
CE compliant designs
Wide range of current ratings and socket configurations
NATO-referenced products available for procurement requirements
Tempest pluggable filter device from Silicon CPV with UK socket and technical specifications.

TEMPEST and HEMP filter solutions

Protection solutions for every deployment

From individual workstations to secure facilities and command centres, Silicon CPV offers filtering solutions to suit a wide range of operational requirements.

Pluggable TEMPEST filters

Simple plug-and-play protection for workstations, communications equipment and deployable systems.

Standard socket TEMPEST filters

General-purpose TEMPEST filters for secure workstations, communications equipment and deployed systems.

Product
Description
Brochure
TEMPEST 6A 1 Socket
Single-socket TEMPEST filter
TEMPEST 6A 2 Sockets
Dual-socket TEMPEST filter
TEMPEST 13A 1 Socket
Single-socket TEMPEST filter (NATO: 5915-99-358-6375)
TEMPEST 13A 2 Sockets
Dual-socket TEMPEST filter (NATO: 5915-99-217-3439)
TEMPEST 13A 4 Sockets
Four-socket TEMPEST filter (NATO: 5915-99-577-5313)
TEMPEST 13A 6 Sockets
Six-socket TEMPEST filter (NATO: 5915-99-296-4022)
TEMPEST 32A 2 Sockets
Dual-socket high-current TEMPEST filter
TEMPEST 32A 4 Sockets
Four-socket high-current TEMPEST filter
TEMPEST 32A 6 Sockets
Six-socket high-current TEMPEST filter

International TEMPEST Filters

Country and region-specific variants designed to meet local power standards.

Product
Description
Brochure
TEMPEST 6A 2 Sockets (Australian)
Dual-socket TEMPEST filter for Australian power standards
TEMPEST 10A 1 Socket (Australian)
Single-socket TEMPEST filter for Australian power standards
TEMPEST 10A 2 Sockets (Australian)
Dual-socket TEMPEST filter for Australian power standards
TEMPEST 10A 4 Sockets (Australian)
Four-socket TEMPEST filter for Australian power standards
TEMPEST 10A 6 Sockets (Australian)
Six-socket TEMPEST filter for Australian power standards
TEMPEST 15A 2 Sockets (USA)
Dual-socket TEMPEST filter for US power standards
TEMPEST 15A 6 Sockets (Australian)
Six-socket TEMPEST filter for Australian power standards
TEMPEST 16A 2 Sockets (EU)
Dual-socket TEMPEST filter for European power standards
TEMPEST 16A 4 Sockets (EU)
Four-socket TEMPEST filter for European power standards
TEMPEST 16A 4 Sockets (EU-C)
Four-socket TEMPEST filter with EU-C configuration
TEMPEST 32A 2 Sockets (EU)
Dual-socket high-current TEMPEST filter for European power standards
TEMPEST 32A 4 Sockets (EU)
Four-socket high-current TEMPEST filter for European power standards
TEMPEST 32A 6 Sockets (EU)
Six-socket high-current TEMPEST filter for European power standards

Specialist Connection TEMPEST Filters

Designed for specialist installations requiring industrial connectors and higher-power connections.

Product
Description
Brochure
TEMPEST 16A 6 Sockets with Commando Plug
TEMPEST filter with industrial Commando connector
TEMPEST 16A 6 Sockets with PowerCON
TEMPEST filter with PowerCON connector for specialist applications
TEMPEST 32A 6 Socket with Commando Plug
High-current TEMPEST-filtered distribution unit with six UK sockets and 32A Commando input

TEMPEST power distribution units (PDUs)

High-density TEMPEST-filtered power distribution solutions for racks, control rooms and secure facilities.

Product
Description
Brochure
TEMPEST 16A PDU – 10UK
10-outlet UK power distribution unit with TEMPEST protection
TEMPEST 13A PDU – 12UK
12-outlet UK power distribution unit with integrated TEMPEST filtering and power monitoring
TEMPEST 16A PDU – 12UK
12-outlet UK power distribution unit with TEMPEST protection
TEMPEST 16A PDU – 4UK / 12C13 / 4C19
Mixed-output PDU for rack and equipment deployments
TEMPEST 16A IP66 Power Distribution Box Filter
Portable IP66-rated TEMPEST power distribution unit with 14 UK sockets and Commando connections
TEMPEST 16A PDU – 12UK / 10C13 / 6C19
High-density mixed-output PDU for secure environments
TEMPEST 32A PDU – 4UK / 12C13 / 4C19
High-current mixed-output power distribution unit
TEMPEST 32A PDU – 10UK
High-current 10-outlet UK power distribution unit
TEMPEST 32A PDU – 12UK
High-current 12-outlet UK power distribution unit
TEMPEST 32A PDU – 12UK / 10C13 / 6C19
High-current mixed-output PDU for rack installations
TEMPEST 32A IP66 Power Distribution Box Filter
Portable IP66-rated TEMPEST power distribution unit with 14 UK sockets and Commando connections

HEMP TEMPEST filters

Designed to provide TEMPEST protection with additional hardening against High-Altitude Electromagnetic Pulse (HEMP) threats.

Socket-based HEMP TEMPEST filters

Compact HEMP-protected TEMPEST filters designed for individual workstations, communications equipment and deployable systems.

Product
Description
Brochure
TEMPEST 13A 2 Sockets – HEMP
Dual-socket TEMPEST filter with HEMP protection for secure equipment deployments
TEMPEST 13A 4 Sockets – HEMP
Four-socket TEMPEST filter with HEMP protection for multiple devices
TEMPEST 32A 2 Sockets – HEMP
High-current dual-socket TEMPEST filter with HEMP E1/E2 pulse protection
TEMPEST 32A 4 Socket - HEMP
High-current four-socket TEMPEST filter with HEMP protection

Single phase Shielded Room HEMP filters

High-performance HEMP-protected filters designed for shielded facilities, SCIFs, command centres and critical infrastructure installations.

Product
Description
Brochure
TEMPEST 16A Shielded Room HEMP Filter
Entry-level single-phase HEMP filter for secure rooms and protected facilities.
TEMPEST 32A Shielded Room HEMP Filter
Single-phase HEMP filter for secure communications and critical systems.
TEMPEST 63A Shielded Room HEMP Filter
Medium-capacity HEMP filter for secure infrastructure and mission-critical equipment.
TEMPEST 100A Shielded Room HEMP Filter
Single-phase HEMP filter for secure facilities and critical infrastructure.

Three phase shielded room HEMP filters

High-capacity shielded room TEMPEST filters with HEMP protection, designed for three-phase power systems in mission-critical secure environments.

Product
Description
Brochure
TEMPEST 16A Shielded Room HEMP Filter
Entry-level three-phase HEMP filter for secure facilities and critical systems.
TEMPEST 32A Shielded Room HEMP Filter
HEMP filter for secure communications environments.
TEMPEST 63A Shielded Room HEMP Filter
Medium-capacity HEMP filter for critical systems.
TEMPEST 100A Shielded Room HEMP Filter
High-current HEMP filter for facility-wide protection
TEMPEST 150A Shielded Room HEMP Filter
High-capacity HEMP filter for mission-critical environments.
TEMPEST 200A Shielded Room HEMP Filter
Heavy-duty HEMP filter for large secure installations.
TEMPEST 250A Shielded Room HEMP Filter
Maximum-capacity HEMP filter for large secure facilities

Shielded room TEMPEST filters

Purpose-built for secure rooms, SCIFs and shielded facilities requiring controlled power entry points and protection against compromising electromagnetic emissions.

Single phase Shielded Room filters

Designed for secure facility installations requiring TEMPEST-compliant power filtering and controlled power entry.

Product
Description
Brochure
TEMPEST 16A Shielded Room Filter
Single-phase shielded room TEMPEST filter for secure facilities
TEMPEST 32A Shielded Room Filter
Single-phase shielded room TEMPEST filter for higher power requirements
TEMPEST 63A Shielded Room Filter
Single-phase shielded room TEMPEST filter for critical installations
TEMPEST 100A Shielded Room Filter
Single-phase shielded room TEMPEST filter for facility-wide protection

Three phase Shielded Room filters

Designed for larger facilities, critical infrastructure and high-load secure installations.

Product
Description
Brochure
TEMPEST 16A Shielded Room Filter
Three-phase shielded room TEMPEST filter for secure environments
TEMPEST 32A Shielded Room Filter
Three-phase shielded room TEMPEST filter for higher power applications
TEMPEST 63A Shielded Room Filter
Three-phase shielded room TEMPEST filter for critical infrastructure
TEMPEST 100A Shielded Room Filter
Three-phase shielded room TEMPEST filter for facility-wide protection
TEMPEST 150A Shielded Room Filter
High-capacity three-phase shielded room TEMPEST filter
TEMPEST 200A Shielded Room Filter
Heavy-duty three-phase shielded room TEMPEST filter
TEMPEST 250A Shielded Room Filter
Maximum-capacity three-phase shielded room TEMPEST filter for large secure facilities

Inline TEMPEST filters

Designed for permanent installation where power circuits require TEMPEST-compliant filtering without power distribution.

Standard inline TEMPEST filters

Compact inline filters designed to provide TEMPEST-compliant protection for permanent power installations.

Product
Description
Brochure
TEMPEST 6A Inline Filter
Compact inline TEMPEST filter for low-power equipment
TEMPEST 13A Inline Filter
General-purpose inline TEMPEST filter for secure installations
TEMPEST 16A Inline Filter
High-capacity inline TEMPEST filter for permanent installations
TEMPEST 32A Inline Filter
High-current inline TEMPEST filter for secure power circuits

Specialist connection inline TEMPEST filters

Inline filters featuring specialist connectors for industrial, defence and deployable power systems.

Product
Description
Brochure
TEMPEST 16A Inline Filter with Commando
Inline TEMPEST filter with Commando connectors
TEMPEST 16A Inline Filter with PowerCON
Inline TEMPEST filter with PowerCON connectors
TEMPEST 32A Inline Filter with Commando
High-current inline TEMPEST filter with Commando connectors
TEMPEST 32A Inline Filter with NEMA
High-current inline TEMPEST filter with NEMA connectors

Rack Mount inline TEMPEST filters

19" rack-mounted inline filters designed for secure communications and server environments.

Dedicated inline protection for secure rack environments

Unlike standard 19" Rack Mount TEMPEST Filters, which distribute filtered power to multiple devices through integrated outlets, Rack Mount Inline TEMPEST Filters are designed to provide dedicated TEMPEST-compliant filtering directly within a power circuit.

Product
Description
Brochure
TEMPEST 16A Rack Mount Inline Filter
19" rack-mountable inline TEMPEST filter
TEMPEST 32A Rack Mount Inline Filter
High-current 19" rack-mountable inline TEMPEST filter

Rack Mount TEMPEST filters

Rack-mounted TEMPEST filters that distribute filtered power to multiple devices.

UK socket rack mount filters

Rack-mounted TEMPEST filters with UK sockets for secure equipment and workstation deployments.

Product
Description
Brochure
TEMPEST 16A 4 Socket Rack Mount Filter
19" rack-mounted TEMPEST filter with four UK sockets
TEMPEST 16A 6 Socket Rack Mount Filter
19" rack-mounted TEMPEST filter with six UK sockets
TEMPEST 32A 4 Socket Rack Mount Filter
High-current 19" rack-mounted TEMPEST filter with four UK sockets

C13 Rack Mount filters

Rack-mounted TEMPEST filters designed for servers, switches and equipment using IEC C13 connections.

Product
Description
Brochure
TEMPEST 16A 4 C13 Socket Rack Mount Filter (UK Plug Input)
Rack-mounted TEMPEST filter with four IEC C13 outlets and UK plug input
TEMPEST 16A 4 C13 Socket Rack Mount Filter (C14 Input)
Rack-mounted TEMPEST filter with four IEC C13 outlets and C14 plug input
TEMPEST 16A 12 C13 Socket Rack Mount Filter
High-density rack-mounted TEMPEST filter with twelve C13 outlets
TEMPEST 32A 12 C13 Socket Rack Mount Filter
High-current rack-mounted TEMPEST filter with twelve C13 outlets

C19 Rack Mount filters

High-capacity rack-mounted TEMPEST filters for power-hungry IT, networking and infrastructure equipment.

Product
Description
Brochure
TEMPEST 16A 4 C19 Socket Rack Mount Filter
Rack-mounted TEMPEST filter with four IEC C19 outlets
TEMPEST 16A 8 C19 Socket Rack Mount Filter
Rack-mounted TEMPEST filter with eight IEC C19 outlets
TEMPEST 16A 8 C19 Socket Rack Mount Filter (5m)
Rack-mounted TEMPEST filter with eight IEC C19 outlets and 5m cable
TEMPEST 16A 8 C19 Socket Rack Mount Filter (Commando)
Rack-mounted TEMPEST filter with eight IEC C19 outlets and Commando connection
TEMPEST 32A 4 C19 Socket Rack Mount Filter
High-current rack-mounted TEMPEST filter with four IEC C19 outlets
TEMPEST 32A 4 C19 Socket Rack Mount Filter (AA)
High-current rack-mounted TEMPEST filter with four IEC C19 outlets
TEMPEST 32A 4 C19 Socket Rack Mount Filter (CU)
High-current rack-mounted TEMPEST filter with four IEC C19 outlets
TEMPEST 32A 8 C19 Socket Rack Mount Filter
High-current rack-mounted TEMPEST filter with eight IEC C19 outlets
Built to Meet Security Requirements

Compliance and standards

Silicon CPV TEMPEST filters are designed to support recognised security and compliance standards used within defence and government environments.

SDIP-29 – Defines protection requirements against compromising electromagnetic emanations.
SDIP-27 – Provides guidance for equipment hardening and secure system design.
CE compliance – Demonstrates conformity with applicable European safety and electromagnetic compatibility requirements.

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