L 2 control switches Quick ordering - L2 control switches complete Control switches complete with knob Individually packaged Off/on switch - panel mounted with standard knob OFF ON Description Cat. No. 1 pole 12 A with screw fixing knob SA-LE2-12-1781 1 pole 12 A with 22.5 mm fixing knob CA-LE2-12-1781 2 pole 12 A with screw fixing knob SA-LE2-12-1782 2 pole 12 A with 22.5 mm fixing knob CA-LE2-12-1782 Changeover switch with off - panel mounted with standard knob OFF MAN AUTO 1 pole 12 A with screw fixing knob SA-LE2-12-3501 1 pole 12 A with 22.5 mm fixing knob CA-LE2-12-3501 2 pole 12 A with screw fixing knob SA-LE2-12-3502 2 pole 12 A with 22.5 mm fixing knob CA-LE2-12-3502 Changeover switch without off - panel mounted with standard knob AUTO MAN 1 pole 12 A with screw fixing knob SA-LE2-12-2501 1 pole 12 A with 22.5 mm fixing knob CA-LE2-12-2501 2 pole 12 A with screw fixing knob SA-LE2-12-2502 2 pole 12 A with 22.5 mm fixing knob CA-LE2-12-2502 Ammeter switch for 3 C.T.’s - panel mounted with standard knob 0 3 1 1 pole 12 A with screw fixing knob SA-LE2-12-8751 1 pole 12 A with 22.5 mm fixing knob CA-LE2-12-8751 2 Stop/start switch with spring return - panel mounted with standard knob STOP START Stop/start 12 A with screw fixing knob SA-LE2-12-9251 Stop/start 12 A with 22.5 mm fixing knob CA-LE2-12-9251 Complete LE2 switch Complete individually packaged LE2 switch L 2 control switches Special order form For special switch manufacture, please photocopy this form, fill in the required details and mail or fax it to your nearest NHP Office or Agent for immediate attention. Contact State office Name: _________________________________ Date Quantity Date required Order No. Company: _________________________________ Address: Ph: ( _________________________________ ) Melbourne ___________ Fax: ( Sydney Brisbane ) __________ Adelaide Perth Newcastle Townsville Rockhampton Toowoomba Fax (03) 9429 1075 (02) 9648 4353 (07) 3891 6139 (08) 8371 0962 (08) 9272 3906 (02) 4960 2203 (07) 4775 1457 (07) 4922 2947 Cairns Darwin (07) 4633 1796 (07) 4035 6999 (08) 8947 2049 L 2 control switches Mounting and dimensions For LE panel mounted switches (screw fixing) Drilling plan for handle ) 2 LE 2 - 12/16 2 3 4 5 6 7 8 Control knob P Cat. No. B Q L for LE 2 12/16 44 54 64 74 84 94 104 114 LFS 2-A-4 28 36 48 x 48 L for LE 2 20/25 44.5 57 69.5 82 94.5 107 119.5 132 LFS 2-I-4 28 36 48 x 48 LFS 2-S-4 28 36 48 x 62 No. of wafers Note: ) 2 1 Centre hole 9.5 mm. 4 hole fixing 36 x 36 mm, 2 hole fixing 32 mm. For LE panel mounted switches 22.5 mm central nut mounting Drilling plan 2 3 4 5 L for LE 2 12/16 67.5 77.5 87.5 97.5 107.5 117.5 127.5 137.5 L for LE 2 20/25 69 81.5 94 106.5 119 No. of wafers 1 For LA base mounted switches 6 7 131.5 144 8 156.5 Drilling plan for handle 1 ) 2 3 4 Y X L for LA 2 12/16 58 68 78 88 Min 2.5 ≥ 150 L for LA 2 20/25 58 71.5 84 96.5 Max 9.5 ≥ 90 No. of wafers Note: ) 1 1 Add 2.5 mm for DIN rail mounting. All dimensions in mm (approx.) L 2 control switches Technical data Switches L 2-12 L 2-16 L 2-20 L 2-25 Rated operating voltage IEC/VDE/BS [V] 660 660 660 660 Main switch performance VDE isolation conditions [V] 660 660 660 660 impulse voltage Uimp of [kV] 6 6 6 6 IEC/VDE/BS [A] 16 20 25 30 IEC/VDE/BS [A] 12 16 20 25 are fulfiled up to a rated Rated thermal current Ith 40 °C open Rated thermal current Ithe 60 °C enclosed Rated operating current Ie AC 1/ AC 21 A switching resistive loads with slight overload IEC 947 660 V [A] 12 16 20 25 AC 22 A switching mixed resistive IEC 947 220-500 V [A] 12 16 20 25 600 V 12 16 20 25 and inductive loads at [A] slight overload AC 23 A AC 15 periodic switching of motors (selection criterion for main switches) 380-440 V [kW] 4 5.5 7.5 11 switching magnetic drives, 220-240 V [A] 5 6 7 8 380-415 V [A] 3 4 5 6 500 V 2 2.5 3 4 4 5.5 7.5 11 IEC 947 motors, valves and solenoids AC 3 [A] starting of cage motors (interruption whilst running) 380-440 V [kW] single or stranded mm2 2 x 2.5 2 x 2.5 6 6 fine strands (with sleeve) mm 2 x 2.5 2 x 2.5 2 x 4 2x4 [kAeff] 0.48 0.48 0.6 0.75 [A] 20 20 20 25 [kA] 6 6 5 5 million operations 1 1 1 1 switching rate mechanical operations per hour 1200 1200 1200 1200 switching rate electrical operations per hour 120 120 120 120 mechanism (escutcheon) - IP 65 IP 65 IP 65 IP 65 switch body - IP 20 IP 20 IP 20 IP 20 operation min/max (˚C) -20…+60 -20…+60 -20…+60 -20…+60 storage min/max (˚C) -30…+70 -30…+70 -30…+70 -30…+70 Max wire sizes 2 Short circuit current rated short-time (1 s) max. fuse rating of circuit (gL characteristic) rated conditional Mechanical life Protection class (IEC 529) Ambient temperature L 2 control switches Introduction L 2 control switches The traditional L 2 range of control switches are available in current ratings of 12, 16, 20, 25 amps in two frame sizes of 12/16 and 20/25 amps. The L 2 range offers a number of advantages over traditional designs providing a high degree of compatibility with existing products while offering a wide choice of options and fixing methods. The modular design approach allows easy adaptation to particular customer requirements. Screw fixing or 22.5 mm mounting Control knobs are available with standard screw fixing (LFS) or central nut mounting requiring a single 22.5 mm hole to be drilled (LFC). Both options can be supplied by selecting the correct control knob. The same switch body is used for both mounting types. IP 65 control knobs All control knobs conform to the protection classification IP 65 and are therefore suitable for use in arduous environments. Panel mounted LE 2 switch PLC compatibility All LE 2-12 switches are supplied with electronic compatible contacts to DIN 19240 standards for switching of PLC inputs etc. All terminals are accessible from the rear even with a mounted switch. Optional base mounted LA 2 control switch Screw fixing holes fit popular switch brands. Safety and quality ❍ Touch proof terminals (IP 20) Escutcheon fitted with header plate ❍ IP 65 control knobs ❍ Long operational life and high reliability ❍ Positive switching action with clearly defined switching point ❍ All switch bodies are manufactured from self extinguishing materials (corresponding to class UL 94VO) Time saving installation ❍ Captive terminal screws already open for fast installation ❍ Robust screwdriver guide for easy wiring using manual or power screwdriver ❍ Clear terminal markings prevents wiring mistakes ❍ Easy access to switch terminals (angled screws) ❍ Screw fixing or single 22.5 mm hole mounting L 2 control switches Ordering example Ordering example L 2 switch body 12…25 A Cat. No. For panel mounting Switch body 1) screw fixing (also for central fixing in conjunction with control knob LFC) LE 2- - LA 2- - LE 2 For base mounting Switch body screw fixing or snap-on to DIN rails EN 50 022-35 including door coupling parts (ON/OFF switch with door interlock) LA 2 Switch units Enter rated current (12, 16, 20, 25) Circuit diagram Enter circuit diagram numbers (eg. ‘1781’ for 1 pole off-on switch) L 2 control knobs Protection class IP 65 LFS 2 - A - 4 - 325 Mounting LFS - screw fixing LFC - 22.5 mm hole Knob type 2) A - Standard E - Padlockable B - With front ring Escutcheon size 2) 4 - 48 x 48 mm 6 - 64 x 64 mm Switch function Notes: ) 1 ) 2 L2 switch can be modified for control fixing with the aid of a snap-on module supplied with the control knob LFC2. Other options available. Product flexibility With the L 2 range of control switches, the switch body (switching part) is ordered separately to the control knob. This results in a great deal of flexibility in the type of operating knob and mounting possibilities. As an example, if the switch body type LE 2-12-3501 is selected, a choice of control knobs is made. The standard knob LFS 2-A-4350R is the screw fixing type. For 22.5 mm single hole mounting the knob LFC 2-A-4-350R can be selected. It is even possible to use this switch body with a key operator LFC 2-CC-4-350. The choice is left up to the customer. L 2 control switch bodies - panel mounted Control knobs for L2 panel mounted switch bodies Off/on - changeover - stop/start Off/on - changeover - stop/start Standard switch bodies for panel mounting Please refer to opposite page for control knob selection Function AC 21 AC 22 Amps 1) Diagram AC 23 @ 415V kW No. of poles Switch wafers Switch body Cat. No. Control knobs IP 65 complete with engraved escutcheons Please refer to opposite page for standard switch bodies Price $ 1 2 1 90° ON ON 3 2 4 1 3 OFF 12 1 1 LE 2-12-1781 23.80 20 1 1 LE 2-20-1781 33.50 12 2 1 LE 2-12-1782 26.30 2 4 6 1 3 5 7 2 4 6 8 1 LE 2-20-1782 41.50 3 2 LE 2-12-1783 33.50 22.5mm mounting standard knob 5.5 3 2 LE 2-16-1783 42.50 48 x 48mm frame 20 7.5 3 2 LE 2-20-1783 54.00 25 11 3 2 12 4 4 20 7.5 12 LE 2-25-1783 67.00 2 LE 2-12-1784 41.50 4 2 LE 2-20-1784 62.00 4 4 2 LE 2-12-17642) 39.50 5.5 4 2 LE 2-16-17642) 49.00 20 7.5 4 2 LE 2-20-17642) 62.00 25 11 4 2 LE 2-25-17642) 78.00 1 1 LE 2-12-3501 28.30 1 1 2 3 1 2 3 1 20 Off-on A LFS 2-A-4-178 I ) 7.70 Off-on E LFS 2-E-4-178 I ) 12.00 Off-on A LFC 2-A-4-178 I ) 10.70 - B LFC 2-B-001 Off-on C LFC 2-CC-4-178 I ) Cat. No. Price $ 6 11 9 10 3 1 7 5 11 9 15 13 2 6 10 14 3 3 48 x 48mm frame 22.5mm mounting 30mm dia frame 3 8.10 without escutcheon 2) Key operated 22.5mm mounting 3 52.10 48 x 48mm frame 5 (key removable in off position) Type B knob OFF Standard knob Man - OFF - auto A LFS 2-A-4-350R 48 x 48mm frame Local - O - remote A LFS 2-A-4-350S Standard knob 1-O-2 A LFS 2-A-4-350 Man - O - auto E LFS 2-E-4-350R 12.00 22.5mm mounting standard knob Man - O - auto A LFC 2-A-4-350R 10.70 48 x 48mm frame 1-O-2 A LFC 2-A-4-350 10.70 Local - O - remote A LFC 2-A-4-350S 10.70 22.5mm mounting 30mm dia frame - B LFC 2-B-001 1-O-2 C LFC 2-CC-4-350 LE 2-20-3501 41.50 2 LE 2-12-3502 39.30 2 2 LE 2-20-3502 62.00 48 x 48mm frame 12 4 3 3 LE 2-12-3503 52.00 Padlockable knob 16 5.5 3 3 LE 2-16-3503 67.00 48 x 48mm frame 20 7.5 3 3 LE 2-20-3503 82.00 25 11 3 3 LE 2-25-3503 103.00 12 4 4 4 16 5.5 4 4 20 7.5 4 4 25 11 4 4 12 20 6 7 5 2 Knob type Control knobs for changeover with off switch bodies 12 7 5 2 3 1 2 ON 2 4 With 1 early make contact 16 60° 0 ) 1 Engraving 48 x 48mm frame Padlockable knob 16 Changeover with off switch body 1 Standard knob OFF 12 20 5 90° 5 Description Control knobs for off/on switch bodies Off/on switch body OFF Function LE 2-12-3504 A A 67.00 LE 2-16-3504 82.00 LE 2-20-3504 103.00 LE 2-25-3504 122.00 MAN AUTO 0 1 2 7.70 7.70 7.70 8.10 without escutcheon 2) Key operated 22.5mm 52.10 48 x 48mm frame (key removable in O position) Stop/start with spring return switch body STOP START 45° Control knobs for stop/start with spring return switch bodies 12 1 1 LE 2-12-9251 27.30 20 1 1 LE 2-20-9251 41.50 Standard knob STOP START Stop - start A LFS 2-A-4-925 7.70 Stop - start A LFC 2-A-4-925 10.70 Stop - start C LFC 2-CC-4-925 52.10 48 x 48mm frame 22.5mm mounting standard knob N/L2 A/L1 2 4 48 x 48mm frame 1 3 Key operated 22.5mm 48 x 48mm frame (key removable in centre position) Example ❍ Order the switch body eg. LE 2-12-3501 ❍ Order the control knob eg. LFC 2-A-4-350R Notes: 1 2 ) ) A All switch functions available in current ratings 12, 16, 20 and 25 amp on request. Control knob for 1764 version replace 178I with suffix 175I. Assembled to customer order/requirements. Price Schedule ‘A2’ 5-6 Notes: 1 2 3 ) ) ) All escutcheon plates have silver background with black knob unless stated otherwise. Same appearance as DT 3 selector switches. Control knob for 1764 version replace 178I with suffice 175I. Price Schedule ‘A2’ 5-7 L 2 control switches Ordering details - control knobs with escutcheon A E Protection class IP 65 Cat. No. With central fixing 1) (for LE switches only) LFC 2- - - With screw fixing (for LE and LA switches) LFS 2- - - Standard version Black front frame, silver-grey legend plate, black knob A With front ring (LFC only), black knob, without escutcheon (same appearance as D5) B With locking key (LFC only) - Key number 152 black escutcheon frame, Withdrawing position: silver-grey legend plate CC (Special key combinations and withdrawing CD positions available on request) CG CH CK G I With front ring (LFC only) - Key number 152 Withdrawing position without escutcheon DC (Special key combinations and withdrawing DD positions available on request) DG (same appearance as D5 pushbutton range) DH DK N L Main switches Black front frame silver-grey legend plate, black knob, locking facility for 1 padlock Grey escutcheon, black disc-type knob, locking facility for 3 padlocks (LFS only) Emergency off Black frame, yellow legend plate, red knob Main switch/emergency off Black frame, yellow legend plate, red knob, locking facility for 1 padlock Yellow escutcheon, red disc-type knob, locking facility for 3 padlocks (LFS only) S P E G 4) I L N 4) Standard 45 mm cutout (LFS only) Grey cap, black knob P Rectangular version (LFS only) Black front frame, silver-grey legend plate, black knob, blank silver-grey nameplate S Escutcheons ) Size 48 x 48 mm 48 x 62 mm 45 x 54 mm 64 x 64 mm 64 x 78 mm 67 x 67 mm 2 CC…CK B Notes: DC…DK ) ) 3 ) 4 ) 1 2 Standard marking No. without legend plate Special engraving Escutcheon plate type A, E, I, L S P A, E, I, L 4) S 4) G, N 4) 4 4 4 6 6 6 001 SPE L 2 switches can be modified for central fixing with the aid of a snap-on module supplied with the escutcheon plate LFC 2. Does not apply to escutcheon plates B and D. The letter ‘Z’ signifies a different marking with the same circuit diagram (eg. 175 I for OFF/ON instead of 175 for 0-1). Larger escutcheon available. For main switches OFF/ON refer handles for L 7 switches in section 11 Part A.