MIL-Spec Control Switches
for Critical Systems
Pressure, Temperature, and Differential Pressure Switches Built
for Critical Environments
Detroit Switch manufactures MIL-Spec pressure switches, temperature switches, and differential pressure switches for systems where reliability is critical and operating conditions are demanding.
Rather than offering fixed, off-the-shelf configurations, Detroit Switch products are built around adaptable platforms that can be configured to meet specific application requirements.
From naval systems and military environments to other high-consequence applications, our MIL-Spec control switches are designed to perform reliably under real-world operating conditions.
These products are designed for environments where:
- Shock and vibration are significant
- Access may be limited after installation
- Failure can carry serious operational consequences
DESIGNED FOR CRITICAL SYSTEMS
Built for Systems That Can’t Afford to Fail
MIL-spec pressure switches, temperature switches, and differential pressure switches are designed to monitor critical system conditions and initiate protective actions when predetermined limits are reached. Depending on the application, the switch may activate alarms, pumps, fans, lights, or other electrically operated equipment.
MIL-Spec environments place different demands on control components than standard industrial applications.
Switches used in these systems must continue operating under:
Detroit Switch MIL-Spec products are designed with those realities in mind.
Enhanced sealing, rugged construction, and configurable electrical arrangements help support reliable operation in systems where replacement is difficult and downtime is costly.
Vibration Resistant
Shock Resistant
Changing environmental conditions
Long-term service expectations
Pressure, Temperature, and Differential Pressure Applications
Pressure Switches
MIL-Spec pressure switches monitor and control system pressure by triggering action when operating thresholds are reached.
These pressure switches are commonly used in:
- Naval systems
- Military equipment
- Propulsion systems
- Other high-reliability applications
Available configurations support a wide range of operating pressures, differentials, mounting styles, and electrical arrangements.
Temperature Switches
Temperature switches respond to changing thermal conditions within a system and help protect equipment from overheating or unsafe operating temperatures.
Applications include:
- Propulsion and engine systems
- Military support equipment
- Harsh-environment industrial systems
Temperature switch configurations vary depending on sensing requirements, operating range, and environmental conditions.
Differential Pressure Switches
Differential pressure switches detect changes between two points within a system and trigger action when conditions move outside acceptable ranges.
These switches are commonly used in:
- Filtration systems
- Fluid monitoring
- Mission-critical process systems
Differential pressure configurations can be adapted based on operating conditions and application requirements.
222 and 444 MIL-Spec Series
Detroit Switch MIL-Spec products are organized primarily around the 222 and 444 series, each designed for different types of system behavior and operating requirements.
222 Series — Flexible, Application-Driven Design
The 222 series utilizes Detroit Switch’s proprietary electrical components and is designed for flexibility across a wide range of applications.
This series offers:
- Broad differential range capability
- Adaptable operating ranges
- Configurable performance characteristics
As pressure range increases, differential range increases as well, making the 222 series well suited for applications requiring greater flexibility.
The 222 series is commonly selected for:
- Naval systems
- Military applications
- Other environments where adaptability and rugged construction are important
444 Series — Tighter Switching Performance
The 444 series utilizes a snap switch design with built-in differential characteristics.
This series is commonly used in applications where:
- Multiple snap switch arrangements require sequential and/or simultaneous settings
- Tighter differential ranges are necessary
- Switching behavior must remain stable under demanding operating conditions
In higher-pressure applications where tighter switching performance is important, the 444 series is often preferred.
MIL-Spec Construction &
Applications
Detroit Switch MIL-Spec products are designed for use in critical and high-consequence environments.
Depending on the application, products may include:
- Enhanced gasketing and sealing
- Increased resistance to shock and vibration
- Environmental protection against moisture and contaminants
- Construction suited for long-term service in demanding systems
These products are commonly used in applications where reliability requirements are defined by military standards and operating conditions are more severe than traditional industrial environments.
Configurable by Design
Detroit Switch MIL-Spec products are built around configurable platforms rather than fixed designs.
Depending on the application, switches can be configured with:
- Pressure and temperature ranges
- Differential settings
- Mounting arrangements
- Environmental protection features
- Multiple electrical configurations
- Time-delay configurations
- Low-voltage applications
Available electrical arrangements may include:
- SPST switch configurations (single-pole, single-throw)
- SPDT switch configurations (single-pole, double-throw)
- DPST switch configurations (double-pole, single-throw)
Additional specialty configurations may also include:
- Non-magnetic construction
- Armor tubing
- Fail-safe elements
- Other application-specific modifications
Selecting the Right MIL-Spec Configuration
Selecting the right MIL-Spec pressure switch depends on more than simply choosing a model number.
Many customers begin with:
- An existing application
- A military specification
- A previously installed unit
From there, Detroit Switch works directly with engineers and project teams to determine:
- Operating conditions
- Environmental requirements
- Electrical configuration needs
The most appropriate switch arrangement for the system
Because in these environments, the right configuration matters.
PROVEN OVER DECADES
Built for Long Lifecycle Systems
Detroit Switch products are commonly installed in systems expected to remain in service for decades.
In many cases, the switches continue operating long after surrounding equipment has been rebuilt, upgraded, or replaced.
That long-term reliability is one of the reasons Detroit Switch products continue to be used in:
Naval Systems
Military Environments
Locomotive Systems
Other High-Reliability Applications
GET STARTED
Not Sure Which MIL-Spec Switch You Need?
You don’t need to have every specification finalized before reaching out.
Tell us about your application, operating environment, and system requirements, and Detroit Switch can help determine the right configuration.