Exchange Units
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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.
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 six ways
- Weatherproof stainless steel dust cap as standard
- Replaceable code barrel assembly
The Prosafe Advantage
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Stainless steel construction. |
Specifications
| Standards | EN292-1&2, EN1088, ISO12100-1&2, ISO14119, AS4024.1 |
| Category | Cat. 3 per EN 954-1 (ISO 13849-1) c-UL-us and TUV |
| Certifications | CE marked for all applicable directives and BG; C-Tick not required |
| Operating Temperature [C (F)] | -40…80° (-40…176°) |
| Mechanical Life | 100,000 operations |
| Shear Force to Key | 15.1 kN (3398 lbs), max. |
| Torque to Key | 14 N•m (124 lb•in), max. |
| Relative Humidity | 95% |
| Material | 316L stainless steel |
Optional Key Exchange Cabinets
| Optional Key Exchange Cabinets | ||||
| Number of Keys | Length—mm (in) | Width [mm (in.)] | Depth [mm (in.)] | Cat. No. |
| Painted Mild Steel | ||||
| 7…11 way (max) | 400 (15.7) | 300 (11.8) | 200 (7.87) | 440T-AIPB30 |
| 12…15 way (max) | 400 (15.7) | 400 (15.7) | 210 (8.26) | 440T-AIPB33 |
| 16…25 way (max) | 600 (23.6) | 600 (23.6) | 210 (8.26) | 440T-AIPB34 |
| Stainless Steel | ||||
| 12…15 way (max) | 400 (15.7) | 400 (15.7) | 210 (8.26) | 440T-AIPB40 |
| 16…25 way (max) | 600 (23.6) | 600 (23.6) | 210 (8.26) | 440T-AIPB44 |
Product Selection
| Key Exchange Units | ||
| Number of Keys | Keys In and Out | Cat. No. |
| 2 way | 1 key in 1 key out | 440T-MKEXE10‡ |
| 3 way | 1 key in 2 keys out | 440T-MKEXE11‡ |
| 4 way | 1 key in 3 keys out | 440T-MKEXE12‡ |
| 5 way | 1 key in 4 keys out | 440T-MKEXE13‡ |
| 6 way | 1 key in 5 keys out | 440T-MKEXE14‡ |
| 4 way | 2 key in 2 keys out | 440T-MKEXE15‡ |
| 5 way | 2 key in 3 keys out | 440T-MKEXE16‡ |
| 6 way | 2 key in 4 keys out | 440T-MKEXE17‡ |
| 6 way | 3 key in 3 keys out | 440T-MKEXE18‡ |
| 7 way | 1 key in 6 keys out | 440T-MKEXE19‡ |
| 8 way | 1 key in 7 keys out | 440T-MKEXE20‡ |
| 9 way | 1 key in 8 keys out | 440T-MKEXE22‡ |
| 10 way | 1 key in 9 keys out | 440T-MKEXE23‡ |
| 11 way | 1 key in 10 keys out | 440T-MKEXE24‡ |
| 12 way | 1 key in 11 keys out | 440T-MKEXE25‡ |
| 13 way | 1 key in 12 keys out | 440T-MKEXE26‡ |
| 14 way | 1 key in 13 keys out | 440T-MKEXE27‡ |
| 15 way | 1 key in 14 keys out | 440T-MKEXE28‡ |
| 16 way | 1 key in 15 keys out | 440T-MKEXE29‡ |
| 17 way | 1 key in 16 keys out | 440T-MKEXE30‡ |
| 18 way | 1 key in 17 keys out | 440T-MKEXE33‡ |
| 19 way | 1 key in 18 keys out | 440T-MKEXE34‡ |
| 20 way | 1 key in 19 keys out | 440T-MKEXE35‡ |
| 21 way | 1 key in 20 keys out | 440T-MKEXE36‡ |
| 22 way | 1 key in 21 keys out | 440T-MKEXE37‡ |
| 23 way | 1 key in 22 keys out | 440T-MKEXE38‡ |
| 24 way | 1 key in 23 keys out | 440T-MKEXE39‡ |
| ‡ Specify the codes individually for each primary key in (key not included) and for each secondary key (key included). See Key Coding for code selection. Consult factory for other configurations of keys in and keys out. |
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Accessories
| Description | Additional Information | Cat. No. |
| Stainless Steel Key | Accessories | 440T-AKEYE10¬ |
| Stainless Steel Replacement Code Barrel for Products Other than 100A RPS/RKS Units | 440T-ASCBE14¬ | |
| Stainless Steel Weatherproof Replacement Dust Cap | 440T-ASFC10¬ | |
| ¬ Substitute the desired primary code for this symbol (key not included). See Key Coding for code selection. | ||
Approximate Dimensions—mm (inches)
Dimensions are not intended to be used for installation purposes.
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