PRECISION & HEAVY DUTY LIMIT SWITCHES counter clockwise or in both directions. provided they are connected on the same polarity. with rotary shafts. Operating levers may be rotated and locked on the rotary shaft in any one position.5 - LPGS (mm) 3. Every limit switch that comes off the Bhartia Cutler-Hammer assembly line passes through rigid quality tests before it reaches you ..Heavy Duty Limit Switches BCH Limit Switches are designed with one aim only to help you produce better. Contact block The contact mechanism is enclosed in a phenolic moulding with a transparent thermoplastic front cover. There is no point of zero contact pressure .5 6. Min. Rotary lever operating heads These heads.1 7. with less production down time. the length of which can be adjusted up to 8 mm.0 - 20 18o 5o 25o 0.. can be readily changed on the job to operate clockwise. twin break silver contacts (normally open / normally closed change over) provide quick make.0 1. The operator consists of a nylon covered wire/steel rod. One has an adjustable push button.1mm diameter.0 1. Versions 1NO + 1NC 2NO + 2NC Screw Terminal Pre-cabled Operating Head Type NL Limit Switches are available with a variety of operating heads to meet diverse applications.1mm dia. The single pole double throw. NLJW LTPBA LSPBA (mm) (mm) 7-12 6o 34 45 1. Both the normally open and normally closed contacts can be used simultaneously.0 2.5 2.5 2.5mm.. are available..0 - 2.5 - 1. A third type had an adjustable length between 32mm and 82.0 28 o LLGS (mm) 4.0 4. with a fixed length of 38mm and 76.3 1. The levers are provided with 19mm dia. quick break action and full contact pressure at all times. The operating head is adjustable in four 900 apart positions.7 5. which is a spring return switch moving the extension in any direction from the centre operates the contacts..5 o . These are designed for small space and low travel application where the actuator travel is perpendicular to the switch. LSPR LTPR LSPRH LCW NLL1. Side push operating head The head is also available with an adjustable push button alternatively a metal roller of 11.faster.1 5.5 2.8 2.no matter how slowly the switch is operated. Force to be applied at a radius of (mm) Max. Cat whisker operating head (Nylon & Steel Rod) This head has been designed for applications where extremely low operating force is available. NLL2 NLLA. The second type has a metal roller of 11.0 1. Two types of roller lever operators.) Kg. Operating Data TYPES Travel to Trip A Travel to reset from trip point B Over Travel C Total Travel D Force to Trip (max.5 1. which are of the spring return variety.5 7.2mm. These limit switches will keep operating in highly contaminated atmospheres and extremely high shock and vibration conditions. The IP 67 degree conformity makes it more suitable for all adverse applications. Top push operating heads These are available in two designs. metal rollers. The complete unit can be removed and released without the risk of changing the operating characteristic of the limit switch.. through 3600.285 25. 0A 220V 3.Button R .2mm Adjustable Maintained Type LL1 Maintained Type LL2 Maintained Type LLA Top Side Top Adjustable Side Adjustable Nylon Rod Steel Rod Roller in same Line Offset Rollers Rolleer in same line Maintained Offset Rollers Angular Roller Top Plunger NLL1 NLL2 NLLA NLL1M NLL2M NLLAM NLTPR NLSPR NLTPBA NLSPBA NLCW NLJW NLLF NLLFO NLLFM NLLFOM LLGS LPGS NLL1C NLL2C NLL4C NLL1MC NLL2MC NLL4MC NLTPRC NLSPRC NLTPBAC NLSPBAC NLCWC NLJWC NLLFC NLLFOC NLLFMC NLLFOMC - NLL1-22 NLL2-22 NLLA-22 NLL1M-22 NLL2M-22 NLLAM-22 NLTPR-22 NLSPR-22 NLTPBA-22 NLSPBA-22 NLCW-22 NLJW-22 NLLF-22 NLLFO-22 NLLFOM-22 NLLFM-22 - NLL1-22C NLL2-22C NLLA-22C NLL1M-22C NLL2M-22C NLLAM-22C NLTPR-22C NLSPR-22C NLTPBA-22C NLSPBA-22C NLCW-22C NLJW-22C NLLF-22C NLLFO-22C NLLFOM-22C NLLFM-22C - Spares DESCRIPTION CODE 38 mm Lever 76. PRECABLED (1NO+1NC) SCREW TERMINAL CAT NO.2A 220V 0. 2NO + 2NC Frequency of Operation : 2500 operations per hour Mechanical Life : 20 x 106 operations Enclosed Category : Zinc die cast enclosure to IP67 2 Terminal Capacity : 2.2A 550V 1.Roller SP40L1 SP40L2 SP40LA SP40HLG SP40HL SP40HTP B or R SP40HSP B or R SP40CW SP40S1 SP40LF SP40LFO SP40HLM 1NO + 1NC CATALOGUE 15 15 Wiring Diagram 18 16 Must be same polarity 11 11 14 12 2NO + 2NC 21 21 24 22 Must be same polarity .2 mm Lever Adjustable Lever Operating Head Operating Head Operating Head Operating Head Operating Head with Lever Limit Switch Assembly Operating Head in Line Operatng Head Offset Operating Head Maintained B . (2NO+2NC) Roller Lever Push Roller Push Button Cat Whisker Fork Type General Purpose Standard-38mm Standard-76.5A 440V 1. (2NO+2NC) PRECABLED CAT NO.Electrical and Mechanical Ratings Utilisation Category Thermal Current (Ith) Insulation Voltage (Ui) : AC15 & DC13 as per IEC947-5 IS 13947-5 : 10A : 600 V AC 240 V DC Linear Motion C D B A Operational Current and Voltage AC15 rating Voltage 110V Rating 6.5A 110V 0.1A A = Travel to trip B = Travel to reset from trip point C = Over travel D = Total travel Angular Motion RESET FROM TRIP 50 0 D TRIP 500 TOTAL THROW Contact Combination : 1NO + 1NC.0A DC13 rating Voltage 24V Rating 1.Snap Action Type NL TYPE DESCRIPTION CAT. NO. NO SCREW TERMINAL (1NO+1NC) CAT.0A 60V 0.5 mm solid or stranded A B C OVER TRAVEL Pilot Devices & Limit Switches Heavy Duty Limit Switch . 19. 8. ADJUSTMENT DIA.8 2.6 .25 4.7 22.0 130.0 DIA ROLLER 20.57 DIA.0 8. 9 29. 97. 134.4 R 0.0 21.5 2.0 DIA.7 13.5P.52 THDS.9 6.0 ¾" DIA.9 4 11. 8. 30.2 11.1 12. 12.5 STEEL ROD WHISKER TYPE (JW) SIDE PUSH ROLLER (HORIZONTAL) TYPE (SPRH) ROLLER LEVER TYPE (GS) 35. Surface Mounted Side Operated 22º 10.4 17.7 10.5 4.0 6.4 DIA.5 11.0 2.1 DIA 19.25 13.0 19.6 TOP PUSH ROLLER TYPE (TPR) GENERAL PURPOSE LIMIT SWITCHES 12.0 2.0 M 20 X 1.0 39. FOR FRONT MOUNTING 12.2 19.8 45. 2.50 DIA.0 81. 46 22.7 87.2 M5 TAPPED 2 HOLES 9.16 DIA.5P. R 0.35 NF + 0.4 39.0 4.7 8 MAX.8 15.8 6.0 156.2 DIA 19.8 3. ADJUSTMENT 19.0 10.7 44. THDS.2 9.9 15.4 4.7 107.4 9.0 5.0 4.7 19.0 2. 10.4 8.3 R.0 DIA.4 39.8 74.0 7.7 44.5 TOP PLUNGER TYPE (PGS) 4.0 45.1 DIA 19. SIDE PUSH BUTTON ADJUSTABLE TYPE (SPBA) NYLON CUT WHISKERS TYPE (CW) Weights : Oil Tight Limit Switches (except type LLG) : 500 gms.1 7.8 6. MTG.2 7.0 8 MAX.L2) TOP PUSH BUTTON ADJUSTABLE TYPE (TPBA) 12.Dimensions Conduit Entry 2 HOLES 5 DIA.0 MAX.7 38. 27.5 DEEP FOR REAR MTG.0 SIDE PUSH ROLLER (VERTICAL) 51.00 19.7 55.0 50.7 26.9 1.5 M 24 X 1. THDS. MAX.5 42. DIA.5 59.0 6.25R M 20 X 1. General Purpose Limit Switch (LLG) : 300 gms.7 7.7 43.0 4.8 MAX.0 11.4 19.7 19.4mm ADJUSTABLE LEVER TYPE (LA) ROLLER LEVER TYPE (L1 .4 9.0 95. 3CONDUT ENTRY 26.5 72 0.5 HEX.4 15.0 16.0 56.0 9.SOCKET SIZE .3 DIA PLUNGER 40. 76.0 16. HOLES.8 MAX. Low bounce mechanisms. the lever may be formed by the user to satisfy unusual requirements and can be cut or bent to any desired length or shape. Operators are designed for one hole mounting and are of oil-tight construction. with this do-it-yourself operator. The wide variety of switch operating mechanisms coupled with the choice of either single pole 1NO + 1NC or double pole 2NO + 2NC changeover contacts permit easy selection and application for many needs. Serrated-silver stationary contacts.1A 0.0A 2.5A 0.6A With Top Push Roller Operator PSTPRA PSTPR2A assembled in line with contact block With Top Push Roller Operator assembled at right angles to contact block With Six Inch Lever Operator (right hand mounting) With Six Inch Lever Operator (left hand mounting) With Roller Lever Operator (right hand mounting) With Roller Lever Operator (left hand mounting) Without Operator PSTPRB PSTPR2B PSSILR PSSILL PSRLR PSRLL SP20S1 PSSIL2R PSSIL2L PSRL2R PSRL2L SP20S2 DC13 RATING SINGLE DOUBLE SINGLE DOUBLE THROW THROW THROW THROW 115V 230V 600V 2.50A 0.0A 0.20A 0.5A 0.02A 1. These are small in size.8A 0. Semi dust-tight moulded. Contact Mechanism Quick make & quick break action. Selection Chart DESCRIPTION With Top Push Button Operator DOUBLE POLE (2NO + 2 NC CHANGEOVER CONTACTS) CATALOGUE CODE 1NO + 1NC 2NO + 2NC PSTPB PSTPB2 110V 240V 440V 600V 4. These operations are designed for an in-line actuating motion with controlled over-travel. phenolic case of great physical strength and high arc-resisting capacity. including coolant. Long life on high load applications. definite wiping action and high contact pressure assure reliability on dry circuit applications. The roller plunger comes assembled either in line with the length of the contact block or at right angles to it.0A 0.1A 0.Precision Limit Switches Precision Limit Switches are designed for industrial applications. These operators with individual mounting variations afford a high degree of versatility. Operation is provided in both directions. Six Inch (150 mm) Lever Electrical and Mechanical ratings Utilisation category IEC 337-1 and IS Thermal current (Ith) Insulation voltage (Ui) : AC 15 and DC 13 as per : 6875 : 15 A : 600 V AC These operators provide either top and right hand mounting or top and left hand mounting.5mm2 solid or stranded conductors Frequency of operation : 2500 operations per hour (max. Roller Lever Operational current and voltage AC15 RATING SINGLE POLE (1NO + 1NC CHANGEOVER CONTACTS) These operators are available with either top and right hand mounting or top and left hand mounting and are equipped with a steel roller which may be operated by a cam or some similar actuating device. The plunger mechanism is of oil-tight construction and prevents any ingress of oil.0A 1.1A - Mechanical & : 20x106 operations without operator electrical life 10x106 operations with operator Terminal capacity : 2. have exceptionally long life and are accurate. Top Push Roller Plunger Versatile A wide variety of operators are available for use in combination with the basic switch. reliable in operation.) .3A 0. Types Of Operators Push Button Plunger These are designed for one hole panel mounting.0A 1.8A 3.2A 0.0A 0. This allows the roller to accept cam or slide operation from any of the four directions. H. R.5 17.000 / Jan.85 39.8 SIX INCH (150 mm) LEVER NOM.50 25. TO OPERATE SWITCH 8.78 LOCK WASHER ROLLER PLUNGER M12 X 0.35 19.38 19.56-4.04 2.25 mm 35.0 MAX. TO MOUNT SWITCH HEX.5 11.0 NOM.The Repeat Accuracy Of Individual OPERATING PRESSURE min. M12 X 0. R.3R 10. TO MOUNT SWITCH IND-CONTROL/LIMITSWITCH/3000/JAN'06 RP / 5.41-3. 18.20 MAX.1 DIA.5 TOP & REAR MTG.75 PITCH 12.76 HEXLOCK NUT MTG. 19.50 HOLE REQD.6 1. 10. MOUNTING FULL STROKE PUSH BUTTON OPERATOR 6.0 1.0 0.6 4 MTG. TRIP POINT PRETRAVEL 1.80 2.06 MTG.85 1.44 79. UP 6.05 3.1 DIA.6 50. 2.38 2.75 PITCH 12.0 14.04 DIA.25 63.3 24.57 NORMAL The repeat accuracy of individual switch RESET OVERTRAVEL trip points is such 0. HOLES 4.0 71.74 66. 20.5 2.65 Max.UF 31 ROLLER LEVER 17. 6.73-2. HOLES 4.387 Kg. operations they do 2.74 66. NOM.5 TOP & REAR MTG. FULL STROKE DOWN 4 MTG. PLATE MINIMUM STROKE REQD.20 26.50 HOLE REQD. PLATE LOCATION 11. 4.46 4 25 .50 MAX.5 14.0 MAX.50 BUSHING SEAL SUPPLIED ON 18.5 14.68 1.89mm min.0 58.04 DIA. LOCK NUTS 4.8 50.38 LOCKING RING 14.18mm not drift more than two or three thousands of an inch.6 1. '08 . RESET .0 DIA.0 71.4 19.36 OVERTRAVEL 1.75 26. 46. MOUNTING 35.0 BUSHING SEAL SUPPLIED ON OIL RESISTANCE SWITCHES ONLY 20.25 63. 0. 9. 10.3 24.75 26.46 14.35 NOM.0 58.595 Kg FULL STROKE 5. max.44 79.0 OIL RESISTANCE SWITCHES ONLY LOCKING RING MAX.POINT that after millions of DIFFERENTIAL (TRIP TO TRIP) 1-27 Max.H. 0.