User manual HAWKE MS9 ASSEMBLY AI 266 ISSUE K 03-09

[. . . ] a) Carefully swing the lid back on its hinges ensuring the seal is not displaced or damaged. b) The lid may be removed completely by opening to approximately 110° and lifting off. c) Ensure correct gasket is fitted for area of use. Check that the gasket is correctly secured to the underside of the lid and undamaged. [. . . ] c) When used as a general purpose junction box or marshalling box the circuits carrying currents 1A shall be individually protected against over current such that the protective device operates effectively at no more than 1. 45 times the current carrying capacity of the smallest conductor used in that circuit. d) Where a major portion of the terminals are carrying maximum rate current the temperature at the branching point of the conductors may exceed 70°C. Under these circumstances the installer must ensure that the limiting temperature for the cable insulation used is acceptable e. g. e) Not more than one single or multiple stranded lead shall be connected into either side of the terminals, unless the relevant component certificate allows more, or unless the multiple conductors have been previously joined in a suitable manner (for example with an insulated crimped boot lace ferrule, mounted in a vertical position) such that they form a single cohesive item for insertion into the terminal way. A parallel shaft screwdriver of the correct size should be used. D9160 terminal schedule may be incorporated in the box. The installer must ensure that the conditions of use for the terminals outlined are complied with. g) All terminal screws used and unused shall be fully tightened down. h) The installer shall ensure creepage and clearance distances are not reduced, especially between intrinsically safe (is) and non-is circuits (e. g. i) The use of any cross connection devices between adjacent terminal ways shall be in accordance with the requirements of the relevant component certificate listed on Drg. j) Use of the terminal box at ambient temperatures below ­20°C is dependant upon the minimum service temperature of the terminals. k) When connecting a terminal with a conductor that is below the maximum cross section area shown for the terminal, then the maximum amps / pole must be reduced in line with the maximum amps indicated for a terminal equivalent to the conductor size being fitted e. g. for a terminal that can take a maximum conductor size of 10mm² at 40 Amps, but is fitted with a 4mm² conductor then the current shall be reduced to a maximum a 22 Amps, or the rating on the junction box lid label (whichever is the lowest). EARTHING: a) Where there is a requirement for bonding of gland plate, this can be achieved by using earthtags in conjunction with cable glands or by use of earth studs. In the case of painted boxes, consideration must be given to the removal of the paint. under a serrated washer on the inside of the box which may lead to corrosion of the enclosure and potential reduction in earthing protection. This area following installation must be protected against corrosion. b) The earth terminal must accept conductors that are at least equal in cross section to the largest live conductor up to 16mm² or a minimum of 0. 5 x the cross section of the live conductor above 35mm², with a minimum cross section of 16mm². Note : There is an integral connection from the internal earth connection through to the external of the box. AI 266 - Issue K / Page 2 of 6 SCHEDULE OF TERMINALS FITTED Size 1 Terminal Capacity Data Terminal Type Conductor Size mm² Min Max Max. Volts Maximum Physical Terminal Content Term. [. . . ] Volts Maximum Physical Terminal Content Term. Amps Reduced Terminal Content at Maximum Terminal Amps Term. Amps Combined Terminal Resistance (Ohms) Insulation Stripping Length (mm) Terminal Tightening Torque (Nm) WDU2. 5N WDU2. 5 WDU4 WDU6 WDU10 WDU16 WDU35 WDU70N WDU70/95 WDU70/95 WDU120/150 WDU120/150 WFF35 * WFF70 * WFF120 * WFF185 * WFF300 * SAKK4 ** SAKK10 ** 0. 5 0. 5 0. 5 0. 5 1. 5 1. 5 2. 5 10. 0 16. 0 16. 0 35. 0 35. 0 2. 5 2. 5 6. 0 10. 0 25. 0 0. 5 0. 5 2. 5 2. 5 4. 0 6. 0 10. 0 16. 0 35. 0 70. 0 70. 0 95. 0 120. 0 150. 0 35. 0 70. 0 120. 0 185. 0 300. 0 6. 0 10. 0 420 550 690 550 550 690 690 690 690 690 1100 1100 1100 1100 1100 1100 1100 275 275 600 600 515 380 300 250 190 93 23 23 20 20 46 40 15 11 11 380 268 3 3 4 6 9 12 21 42 83 94 110 117 45 67 145 203 227 5 10 24 24 23 19 16 14 11 9 8 11 9 10 16 13 11 8 6 27 23 17 17 22 29 40 53 87 134 134 134 162 162 76 116 162 234 316 20 35 0. 007362 0. 007332 0. 004666 0. 003191 0. 001929 0. 001237 0. 000595 0. 000313 0. 000323 0. 000252 0. 000215 0. 000187 0. 000535 0. 000283 0. 000165 0. 000114 0. 000077 0. 004696 0. 001809 10 10 10 12 12 16 18 22 30 30 35 35 Bolt Size M6 Bolt Size M8 0. 4 - 0. 6 0. 4 - 0. 6 0. 5 - 1. 0 0. 8 - 1. 6 1. 2 - 2. 4 2. 0 - 4. 0 4. 0 - 5. 0 8. 0 - 12. 0 6. 0 - 12. 0 6. 0 - 12. 0 10. 0 - 20. 0 10. 0 - 20. 0 3. 0 - 6. 0 6. 0 - 12. 0 Bolt Size M10 10. 0- 20. 0 Bolt Size M12 14. 0 - 31. 0 Bolt Size M16 25. 0 - 60. 0 10 12 0. 5 - 1. 0 1. 2 - 2. 4 * Complete with cover Note: Terminals listed (with the exception of **) are only suitable for a minimum operating temperature of -50°C SAKK terminals are suitable for -60°C AI 266 - Issue K / Page 5 of 6 Size 8 Terminal Capacity Data Terminal Type Conductor Size mm² Min Max Max. Volts Maximum Physical Terminal Content Term. [. . . ]