Castell AI-FSS-2 User manual

While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
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U-AI-001-E Issue 2
AI Single Key Access Interlock
User Manual - Original Language Version
The AI is a single key access interlock ideal for use on hinged
doors. The interlock has an open cavity design manufactured in
either aluminium alloy/brass or stainless steel, making it ideal for
use in harsh or corrosive environments and heavy use. Typical
industries using the AI are food, chemical, pharmaceutical,
mining, steel and power generation.
1. While the key is free, the bolt of the AI is trapped in the mechanism. The door is locked.
2. By inserting and turning the key in the Access Interlock, you can release the bolt. This will trap the key
in the lock.
3. The key stays trapped while the bolt is released and the door is open.
12
Operation
3
Key is free, bolt is trapped Insert and turn key, then turn and
release bolt
Key is trapped, bolt is unlocked
AI-FSS-2
AI single key access interlock (bolt trapped - key free)
The Castell single key access interlocks are used in various applications to control part body access to hazardous areas.

While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
2 of 5
U-AI-001-E Issue 2
AI Single Key Access Interlock
User Manual - Original Language Version
The AI Access Interlock should be used to allow safe access to potential hazardous and dangerous areas.
The AI Access Interlock should be used on part body access doors where the use of personal safety keys is not essential (to
prevent accidental lock in).
The AI Access Interlock is not designed for security purposes, such as a safe or external access to a building.
No hazardous substances were used in the manufacture of this product. The product can be disposed of in standard waste.
Usage
Installation
The housing of the AI access interlock should normally be mounted on the static frame of the guard and the bolt to the sliding
or hinged door using suitable fasteners. Fixed bolt bracket is highly tolerant to misaligned guards and should be tted with
suitable fasteners. Please refer to the drawing on page 4 for mounting details for the housing and bolt. The AI interlocks are
avalable in Hand 1 and Hand 2 version suitable for left or right hinged doors, respectively. Anti vibration pads should be used on
machines that generate a high level of vibration.
IMPORTANT:
The AI Access Interlock should be mounted on the guard using anti-tamper fasteners to prevent unauthorised removal.
The AI Access Interlock must be installed by a competent and qualied person who has read and understood these
instructions. Please retain this document in your technical le.
Force required to shear lock bolt is 24KN for both stainless steel and brass interlocks.
Maintenance
Periodic visual checks should be carried out by the site manager/safety ofcer.
Do not lubricate lock barrel with oil or grease, use CK Dry Powder Graphite if necessary.
In case of defects beeing detected please contact your nearest Castell Support Department for further actions.
Please see Contact section for contact details.

While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter speci cations and introduce improvements without prior notice.
www.castell.com
3 of 5
U-AI-001-E Issue 2
AI Single Key Access Interlock
User Manual - Original Language Version
Technical Data
Temperature rating Minimum: -40°C [-40°F] ice free for Q & FS Type
Maximum: 107°C [224,6°F] for Q Type/140°C [284°F] for FS Type
Type of mounting Surface mount using suitable fasteners (please refer to drawing on page 4 for more
details)
Weight Brass: 0,8 kg
Stainless steel: 1,0 kg
Material Aluminium alloy/brass or stainless steel
MTTF Certifi cation Available on request
We, the manufacturers, declare that the components, detailed herein and placed on the market, comply with all the essential
health and safety requirements applying to them.
Empowered signatory:
Mr T.C. Whelan
Managing Director
EC-Declaration
Application
A typical application of the AI Single Key Access
Interlock is machine guarding with part body access.
The AI is used as a part of a safety system, which
ensures a machine is shut down, before access to the
hazardous area is allowed.
The system involves a KS key switch that breaks the
machine safety circuit, when the key is removed. The key
can then be taken to the AI Access Interlock to enable
access to the machine. The machine cannot be restarted
until the door is closed, the bolt is replaced and the key
is removed and taken to the KS key switch.
KS Key Switch AI Access Interlock

While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
4 of 5
U-AI-001-E Issue 2
AI Single Key Access Interlock
User Manual - Original Language Version
Drawing
Dimensions:
in mm
Note: For safe mounting, use security screws
AI, Hand 2

While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter speci cations and introduce improvements without prior notice.
www.castell.com
5 of 5
U-AI-001-E Issue 2
AI Single Key Access Interlock
User Manual - Original Language Version
Contact Information
Castell Safety International Ltd.
The Castell Building
217 Kingsbury Road
London, England NW9 9PQ
t: [phone]
f: [phone]
e: [email protected]
Castell Safety International Ltd.
Oskar-Jäger-Strasse 137
50825 Köln
Germany
t: [phone]
f: [phone]
e: [email protected]
Castell Interlocks Inc.
Suite 800
150 N Michigan Avenue,
Chicago, Illinois 60601
USA
t: +1.312.360.1516
f: +1.312.268.5174
e: [email protected]
Castell Safety China
Building 1, No. 123,
Lane 1165, Jindu Road,
Minhang District,
Shanghai 201108, China.
t: [phone]
f: [phone]
e: [email protected]
Order Information
Accessories
Product Part number
Flip Cap FLIP-S
Product Type 1 2 3
Part Number AI - -
Example AI -FS AL -1
4
ABC
1Lock portion type FS (1) / Q (1)
2Material AL = Aluminium alloy/brass
S = Stainless steel
3Handing 1 = left hinged door (bolt enters left) (2)
2 = right hinged door (bolt enters right) (2)
4Lock portion symbol FS (1) up to 3 characters / Q (1) up to 6 characters
(1) FS - Lock type Q - Lock type
Up to 3 characters Up to 6 characters
(2) Handing 1 2
Special construction available upon enquiry