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. 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 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 300 (11.8) 400 (15.7) 600 (23.6) 800 (31.4) 200 (7.87) 210 (8.26) 210 (8.26) 210 (8.26) 400 (15.7) 600 (23.6) 800 (31.4) 210 (8.26) 210 (8.26) 210 (8.26) The Prosafe Advantage Stainless steel construction. 5-18 D mm (inches) Catalogue Number 440T-AIPB30 440T-AIPB33 440T-AIPB34 440T-AIPB35 440T-AIPB40 440T-AIPB44 440T-AIPB45 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 Catalogue Number 5-33 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 200 (7.87) 169 (6.65) 200 (7.87) 169 (6.65) 27.5 (1.08) 55.5 (2.18) 185 (7.28) 4 Fixing Holes 8.6 (0.33) Dia. 87 (3.43) 111 (4.37) 4 Fixing Holes 8.6 (0.33) Dia. Key Exchange Cabinets (painted mild steel or stainless steel) 56 (2.20) 27.5 (1.08) L (2) 3 Way Key Exchange Unit 185 (7.28) 87 (3.43) W D 5-19