Prosafe Trapped Key Interlock Switches
Exchange Units
Specifications
Standards
Category
Approvals
Operating Temperature
Mechanical Operations
Max. Shear Force to Key
Max. Torque to Key
Humidity
Material
EN292-1&2, EN1088, ISO12100-1&2,
ISO14119, AS4024.1
Cat. 1 per EN 954-1 (ISO 13849-1)
Suitable for Cat. 2, 3, or 4 systems
BG, CE marked for all applicable
directives and C-Tick not required
-40°C to +200°C (-40°F to +392°F)
100,000
15.1kN (3398lbs)
14Nm (124lb•in)
95% RH
316L Stainless steel
Accessories
Description
The key exchange unit (KEX) is used in an interlocking sequence to
link together other devices in the Prosafe range and caters to more
complex operating sequences.
The operating principle is such that no secondary keys can be
removed from the unit until all primary keys have been inserted,
rotated, and trapped. The primary keys remain trapped until all
secondary keys have been re-inserted, rotated, and trapped.
It is typically used in applications where there is more than one
access way to the hazardous area, and each access way must be open
at the same time. The key exchange unit accomplishes this by
allowing one or more keys to be inserted which then releases
multiple keys out.
A typical process may require a rotary key switch to turn a motor off.
The key from the rotary switch is removed and inserted into a KEX.
The KEX then releases three keys which would allow simultaneous
access to the hazard area through three different gates. This KEX is
described as 1 key in 3 keys out. The keys in are considered primary
codes, so the keys are not included in the KEX. The keys out are
considered secondary codes, so the keys are included.
Optional Key Exchange Cabinets
L
No. of
Keys
Painted Mild Steel
11 way
400
(max)
(15.7)
15 way
400
(max)
(15.7)
25 way
600
(max)
(23.6)
40 way
800
(max)
(31.4)
Stainless Steel
15 way
400
(max)
(15.7)
25 way
600
(max)
(23.6)
40 way
800
(max)
(31.4)
W
mm (inches)
300
(11.8)
400
(15.7)
600
(23.6)
800
(31.4)
400
(15.7)
600
(23.6)
800
(31.4)
200
(7.87)
210
(8.26)
210
(8.26)
210
(8.26)
210
(8.26)
210
(8.26)
210
(8.26)
D
Catalogue
Number
440T
-AIPB30
440T
-AIPB33
440T
-AIPB34
440T
-AIPB35
440T
-AIPB40
440T
-AIPB44
440T
-AIPB45
Features
• A range of off-the-shelf units in various combinations
• 316L Stainless steel construction
• Primary key(s) in release secondary keys simultaneously on
units up to 6 way
• Weatherproof stainless steel dust cap as standard
• Replaceable code barrel assembly
The Prosafe Advantage
Stainless steel
construction.
5-18
Prosafe Trapped Key Interlock Switches
Exchange Units
Product Selection
Key Exchange Units
Number of Keys
2 way
3 way
4 way
5 way
6 way
4 way
5 way
6 way
6 way
7 way
8 way
9 way
10 way
11 way
12 way
13 way
14 way
15 way
16 way
17 way
18 way
19 way
20 way
21 way
22 way
23 way
24 way
Keys in and out
1 key in 1 key out
1 key in 2 keys out
1 key in 3 keys out
1 key in 4 keys out
1 key in 5 keys out
2 key in 2 keys out
2 key in 3 keys out
2 key in 4 keys out
3 key in 3 keys out
1 key in 6 keys out
1 key in 7 keys out
1 key in 8 keys out
1 key in 9 keys out
1 key in 10 keys out
1 key in 11 keys out
1 key in 12 keys out
1 key in 13 keys out
1 key in 14 keys out
1 key in 15 keys out
1 key in 16 keys out
1 key in 17 keys out
1 key in 18 keys out
1 key in 19 keys out
1 key in 20 keys out
1 key in 21 keys out
1 key in 22 keys out
1 key in 23 keys out
Catalogue Number
440T
-MKEXE10♦
440T
-MKEXE11♦
440T
-MKEXE12♦
440T
-MKEXE13♦
440T
-MKEXE14♦
440T
-MKEXE15♦
440T
-MKEXE16♦
440T
-MKEXE17♦
440T
-MKEXE18♦
440T
-MKEXE19♦
440T
-MKEXE20♦
440T
-MKEXE22♦
440T
-MKEXE23♦
440T
-MKEXE24♦
440T
-MKEXE25♦
440T
-MKEXE26♦
440T
-MKEXE27♦
440T
-MKEXE28♦
440T
-MKEXE29♦
440T
-MKEXE30♦
440T
-MKEXE33♦
440T
-MKEXE34♦
440T
-MKEXE35♦
440T
-MKEXE36♦
440T
-MKEXE37♦
440T
-MKEXE38♦
440T
-MKEXE39♦
♦
Specify the codes individually for each primary key in (key not included) and each secondary key out (key included). See page 5-6 for code selection.
Consult factory for other configurations of keys in and keys out.
Accessories
Description
Replacement Key
Replacement Code Barrel
Replacement Dust Cap
Page Number
5-33
Catalogue Number
440T
-AKEYE10⊗
440T
-ASCBE14➊
440T
-ASFC10⊗
➊
Substitute the desired primary code for this symbol (key not included). See page 5-6 for code selection.
⊗
Substitute the desired code for this symbol. See page 5-6 for code selection.
Approximate Dimensions—mm (inches)
(4, 5 or) 6 Way Key Exchange Unit
(2) 3 Way Key Exchange Unit
200 (7.87)
169 (6.65)
55.5
(2.18)
185 (7.28)
27.5
(1.08)
4 Fixing Holes
8.6 (0.33) Dia.
111
(4.37)
200 (7.87)
169 (6.65)
4 Fixing Holes
8.6 (0.33) Dia.
56
(2.20)
Key Exchange Cabinets
(painted mild steel or stainless steel)
185 (7.28)
87
(3.43)
W
D
87
(3.43)
L
27.5
(1.08)
5-19
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