Mechanical only, no wiring
Harsh, robust design
Forced sequential process
- Robust construction – to survive the most demanding environments
- Multiple energy sources – can be controlled in sequence to remove integration requirements between different technologies
- No programmable Logic – controls operations in sequence to reduce the need for programmable logic
- Eliminates electrical wiring – to access points reducing cost of cabling & installation
- 3rd party approved – to PLe for applications requiring high reliability
- Special purpose units can be designed to provide solutions for specific needs
- Suitable for applications up to SIL3 Cat. 4 PLe
- Over 200,000 unique key codes possible
- 9 Key/lock colour options
- Non-masterable & masterable lock options
- Non-stainless or stainless steel construction of all system components
- Large range of switch variants for electrical isolation
- Non-solenoid, solenoid, voltage sensing and electrical time delay options
- Bolt modules & valve interlocks for pneumatic & hydraulic isolation
- Panel & enclosure mount options
Contact us and we can help define your trapped key interlock system.
At Fortress we will always look to assist with project delivery and efficiency by supporting on the design of trapped key interlock systems. Our team can be on hand to survey equipment on site, interpret system drawings or discuss concepts early on in project design.
The advantage of trapped key systems is that any number of power sources can be interlocked into any number of access points. Determining part numbers and a bill of materials may initially appear complex but a Fortress representative can assist with this and provide engineering drawings of each component.
Using end user information and project documentation we can coordinate across multiple integrators and equipment suppliers.
Contact us and we can help define your trapped key interlock system.
At Fortress we will always look to assist with project delivery and efficiency by supporting on the design of trapped key interlock systems. Our team can be on hand to survey equipment on site, interpret system drawings or discuss concepts early on in project design.
The advantage of trapped key systems is that any number of power sources can be interlocked into any number of access points. Determining part numbers and a bill of materials may initially appear complex but a Fortress representative can assist with this and provide engineering drawings of each component.
Using end user information and project documentation we can coordinate across multiple integrators and equipment suppliers.
What is Trapped Key Interlocking?
Trapped Key Interlocking Put simply, Trapped Key Interlocking uses mechanical devices to keep operators safe by holding guards closed until it is safe to enter the area. The simplest way of achieving this is with a key switch and a door module with one key. The key is trapped in the switch while it… Continue reading What is Trapped Key Interlocking?
All downloadable assets
To have access to the mGard technical information, please login to
mGard Brochure
Actuators Operating Instructions
BM(S) Operating Instructions
DM(S) Operating Instructions
XM & XMS Operating Instructions
Solenoid Switches Operating Instructions
- Select from our range of high-coded compact yet robust interlocks here.
- Use our Datasheets / drawing generators to create technical files, datasheets, and CAD for your selected product.
- Convert your unique ITM number into a Fortress part number using our Reference tool
- Calculate the performance level of your unique safety system using our SISTEMA library
- Click here for more Fortress Product tools
Features
- Robust construction – to survive the most demanding environments
- Multiple energy sources – can be controlled in sequence to remove integration requirements between different technologies
- No programmable Logic – controls operations in sequence to reduce the need for programmable logic
- Eliminates electrical wiring – to access points reducing cost of cabling & installation
- 3rd party approved – to PLe for applications requiring high reliability
- Special purpose units can be designed to provide solutions for specific needs
Technical Specification
- Suitable for applications up to SIL3 Cat. 4 PLe
- Over 200,000 unique key codes possible
- 9 Key/lock colour options
- Non-masterable & masterable lock options
- Non-stainless or stainless steel construction of all system components
- Large range of switch variants for electrical isolation
- Non-solenoid, solenoid, voltage sensing and electrical time delay options
- Bolt modules & valve interlocks for pneumatic & hydraulic isolation
- Panel & enclosure mount options
Build your system
Contact us and we can help define your trapped key interlock system.
At Fortress we will always look to assist with project delivery and efficiency by supporting on the design of trapped key interlock systems. Our team can be on hand to survey equipment on site, interpret system drawings or discuss concepts early on in project design.
The advantage of trapped key systems is that any number of power sources can be interlocked into any number of access points. Determining part numbers and a bill of materials may initially appear complex but a Fortress representative can assist with this and provide engineering drawings of each component.
Using end user information and project documentation we can coordinate across multiple integrators and equipment suppliers.
In use
What is Trapped Key Interlocking?
Trapped Key Interlocking Put simply, Trapped Key Interlocking uses mechanical devices to keep operators safe by holding guards closed until it is safe to enter the area. The simplest way of achieving this is with a key switch and a door module with one key. The key is trapped in the switch while it… Continue reading What is Trapped Key Interlocking?
Download and Technical Info
All downloadable assets
To have access to the mGard technical information, please login to
mGard Brochure
Actuators Operating Instructions
BM(S) Operating Instructions
DM(S) Operating Instructions
XM & XMS Operating Instructions
Solenoid Switches Operating Instructions
Technical library for products
- Select from our range of high-coded compact yet robust interlocks here.
- Use our Datasheets / drawing generators to create technical files, datasheets, and CAD for your selected product.
- Convert your unique ITM number into a Fortress part number using our Reference tool
- Calculate the performance level of your unique safety system using our SISTEMA library
- Click here for more Fortress Product tools
Mechanical Trapped Key Products
View our range of mechanical trapped key interlocks for applications in control and power interlocking, access control, time delayed entry for run-down, and intermediate transfer systems.
