BCH Precision and Heavy Duty Time Switches Catalogue
PRECISION & HEAVY DUTY LIMIT SWITCHES
Heavy Duty Limit Switches BCH Limit Switches are designed with one aim only to help you produce better...faster... with less production down time. These limit switches will keep operating in highly contaminated atmospheres and extremely high shock and vibration conditions. Every limit switch that comes off the Bhartia Cutler-Hammer assembly line passes through rigid quality tests before it reaches you ...
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.
Rotary lever operating heads These heads, which are of the spring return variety, with rotary shafts, can be readily changed on the job to operate clockwise, counter clockwise or in both directions. Operating levers may be rotated and locked on the rotary shaft in any one position, through 3600. The operating head is adjustable in four 900 apart positions. The levers are provided with 19mm dia. metal rollers. Two types of roller lever operators, with a fixed length of 38mm and 76.2mm, are available. A third type had an adjustable length between 32mm and 82.5mm.
Top push operating heads These are available in two designs. One has an adjustable push button, the length of which can be adjusted up to 8 mm. The second type has a metal roller of 11.1mm diameter.
Side push operating head The head is also available with an adjustable push button alternatively a metal roller of 11.1mm dia. These are designed for small space and low travel application where the actuator travel is perpendicular to the switch.
Cat whisker operating head (Nylon & Steel Rod) This head has been designed for applications where extremely low operating force is available. The operator consists of a nylon covered wire/steel rod, which is a spring return switch moving the extension in any direction from the centre operates the contacts.
Contact block The contact mechanism is enclosed in a phenolic moulding with a transparent thermoplastic front cover. The complete unit can be removed and released without the risk of changing the operating characteristic of the limit switch. The single pole double throw, twin break silver contacts (normally open / normally closed change over) provide quick make, quick break action and full contact pressure at all times. There is no point of zero contact pressure - no matter how slowly the switch is operated. Both the normally open and normally closed contacts can be used simultaneously, provided they are connected on the same polarity. The IP 67 degree conformity makes it more suitable for all adverse applications.
Operating Data TYPES Travel to Trip A Travel to reset from trip point B Over Travel C Total Travel D Force to Trip (max.) Kg. Force to be applied at a radius of (mm) Max.
Min.
LSPR LTPR LSPRH NLL1, NLL2 LCW NLLA, NLJW LTPBA LSPBA (mm) (mm) 7-12 6o 34 45 1.0 28
o
1.3 1.1 5.5 6.8 2.0 -
2.0 1.7 5.1 7.0 2.0 -
20 18o 5o 25o 0.285 25.5 o
LLGS
LPGS
(mm)
(mm)
4.5 2.5 2.5 7.0 1.5 -
3.5 2.0 1.0 4.5 1.5 -
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
220V 3.0A
440V 1.5A
550V 1.2A
DC13 rating Voltage 24V Rating 1.0A
60V 0.5A
110V 0.2A
220V 0.1A
A
B
A = Travel to trip B = Travel to reset from trip point C = Over travel D = Total travel
Operational Current and Voltage AC15 rating Voltage 110V Rating 6.0A
D
C
Angular Motion RESET FROM TRIP 500 TOTAL THROW
D
50
0
TRIP
A
Contact Combination : 1NO + 1NC, 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 : 2.5 mm solid or stranded
C
B
OVER TRAVEL
Pilot Devices & Limit Switches Heavy Duty Limit Switch - Snap Action Type NL TYPE
Roller Lever
Push Roller Push Button Cat Whisker Fork Type
General Purpose
DESCRIPTION
CAT. NO SCREW TERMINAL (1NO+1NC)
CAT. NO. PRECABLED (1NO+1NC)
SCREW TERMINAL CAT NO. (2NO+2NC)
PRECABLED CAT NO. (2NO+2NC)
Standard-38mm Standard-76.2mm 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
NLL1C NLL2C NLL4C NLL1MC NLL2MC NLL4MC NLTPRC NLSPRC NLTPBAC NLSPBAC NLCWC NLJWC NLLFC NLLFOC NLLFMC
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
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
NLLFOM LLGS LPGS
NLLFOMC
NLLFM-22
NLLFM-22C
-
-
Spares SP40L1 SP40L2 SP40LA SP40HLG SP40HL SP40HTP B or R SP40HSP B or R SP40CW SP40S1 SP40LF SP40LFO SP40HLM
Wiring Diagram 1NO + 1NC
CATALOGUE
2NO + 2NC
DESCRIPTION CODE 38 mm Lever 76.2 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 - Button R - Roller
-
15 15
18 16
Must be same polarity 11 11
21 21
14 12
24 22
Must be same polarity
Dimensions Conduit Entry
Surface Mounted Side Operated 20.57 DIA.
M 24 X 1.52 THDS.
7.1
10.4 15.9
2 HOLES 5 DIA. FOR FRONT MOUNTING
22º
44.5
12.7
M 20 X 1.5P. THDS.
0.25R
M 20 X 1.5P. THDS. 46
M5 TAPPED 2 HOLES 9.5 DEEP FOR REAR MTG.
7.0
4.0 38.0
5.0
22.9
15.9
4.8
1.5
11.0
10.7
27.4
11.0
76.2
95.3 R. MAX.
7.16 DIA.
8.7 19.8
9.7 13.2
8.0
DIA.
2.0
107.7
19.0
DIA.
15.9 6.4
6.4
9.5
ROLLER LEVER
TYPE (LA)
4
9.5
HEX.SOCKET SIZE - 4mm
ADJUSTABLE LEVER
19.8
51.6
19.0
8.1
2.7
DIA.
11.1 DIA
9.4
19.0
+ 0.25 13.50 DIA.
8 MAX. ADJUSTMENT
44.0
22.2
12.7
39.7
43.6
2.0
29.4
30.35 NF
9
72
59.5
10.25 4.00
R 0.8 MAX.
97.5
6.4
10.4 39.7
12.7
R 0.8 MAX.
TOP PUSH BUTTON ADJUSTABLE TYPE (TPBA)
TYPE (L1 - L2)
TOP PUSH ROLLER TYPE (TPR)
11.1 DIA
45.2
134.0
16.0
19.0 DIA ROLLER
7.0
19.8
45.2
55.0
SIDE PUSH ROLLER (VERTICAL) 19.8
19.5
19.8
35.5
ROLLER LEVER TYPE (GS)
SIDE PUSH ROLLER (HORIZONTAL) TYPE (SPRH)
TYPE (JW)
3.2 DIA
19.8
2.4
16.0
12.7
¾" DIA. 3CONDUT ENTRY
130.0
8.7
40.0
6.3 DIA PLUNGER
2.7 8 MAX. ADJUSTMENT DIA.
TYPE (SPBA)
81.0
NYLON CUT WHISKERS TYPE (CW)
21.0
SIDE PUSH BUTTON ADJUSTABLE
87.0
39.7
26.0
STEEL ROD WHISKER
50.0
74.0
4.4 DIA. MTG. HOLES.
156.0 MAX.
12.7 26.0
GENERAL PURPOSE LIMIT SWITCHES
Oil Tight Limit Switches (except type LLG) : 500 gms. General Purpose Limit Switch (LLG) : 300 gms.
17.0 2.5
42.5
6.0
4.4
Weights :
4.0
TOP PLUNGER TYPE (PGS)
56.0
4.0
Precision Limit Switches
Precision Limit Switches are designed for industrial applications. These are small in size, reliable in operation, have exceptionally long life and are accurate. 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.
Types Of Operators
Contact Mechanism Quick make & quick break action. Low bounce mechanisms. Long life on high load applications. Serrated-silver stationary contacts, definite wiping action and high contact pressure assure reliability on dry circuit applications. Semi dust-tight moulded, phenolic case of great physical strength and high arc-resisting capacity.
Versatile A wide variety of operators are available for use in combination with the basic switch. These operators with individual mounting variations afford a high degree of versatility.
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
Operational current and voltage AC15 RATING
DOUBLE POLE (2NO + 2 NC CHANGEOVER CONTACTS)
4.0A 2.0A 1.0A 0.8A
3.0A 1.5A 0.8A 0.6A
DC13 RATING SINGLE DOUBLE SINGLE DOUBLE THROW THROW THROW THROW
115V 230V 600V
2.0A 0.5A 0.1A
0.50A 0.20A 0.02A
1.0A 0.3A 0.1A
These are designed for one hole panel mounting. The plunger mechanism is of oil-tight construction and prevents any ingress of oil, including coolant. These operations are designed for an in-line actuating motion with controlled over-travel.
Top Push Roller Plunger
Operators are designed for one hole mounting and are of oil-tight construction. The roller plunger comes assembled either in line with the length of the contact block or at right angles to it. This allows the roller to accept cam or slide operation from any of the four directions.
Six Inch (150 mm) Lever
These operators provide either top and right hand mounting or top and left hand mounting. with this do-it-yourself operator, the lever may be formed by the user to satisfy unusual requirements and can be cut or bent to any desired length or shape.
Roller Lever
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. Operation is provided in both directions.
Selection Chart
SINGLE POLE (1NO + 1NC CHANGEOVER CONTACTS)
110V 240V 440V 600V
Push Button Plunger
0.2A 0.1A -
Mechanical & : 20x106 operations without operator electrical life 10x106 operations with operator Terminal capacity : 2.5mm2 solid or stranded conductors Frequency of operation : 2500 operations per hour (max.)
DESCRIPTION With Top Push Button Operator
CATALOGUE CODE 1NO + 1NC 2NO + 2NC PSTPB
PSTPB2
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
PSTPRB PSTPR2B
With Six Inch Lever Operator (right hand mounting)
PSSILR
PSSIL2R
With Six Inch Lever Operator (left hand mounting)
PSSILL
PSSIL2L
With Roller Lever Operator (right hand mounting)
PSRLR
PSRL2R
With Roller Lever Operator (left hand mounting)
PSRLL
PSRL2L
Without Operator
SP20S1
SP20S2
The Repeat Accuracy Of Individual OPERATING PRESSURE min. 0.387 Kg. max. 0.595 Kg
MAX.
24.6 R.H. MOUNTING
6.35 NOM.
0.78
2.38 14.0
19.8
14.5 17.46
25 - 4
46.8 10.3R
50.0 58.74 66.0 71.44 79.5 TOP & REAR MTG.
14.3
1.6
24.6
4 MTG. HOLES 4.04 DIA. R.H. MOUNTING
RP / 5,000 / Jan. '08
79.5 TOP & REAR MTG.
1.6
11.1 DIA.
MAX.
NOM. UP
9.5 66.0 71.44
10.5
14.5
ROLLER LEVER
4
NOM.UF 31
SIX INCH (150 mm) LEVER
6.35
14.3
20.75 26.50
18.25 63.0
19.0
50.0 58.74
19.85
2.0 2.38 BUSHING SEAL SUPPLIED ON
NOM. FULL STROKE DOWN 4 MTG. HOLES 4.04 DIA.
17.46
LOCKING RING
OIL RESISTANCE SWITCHES ONLY
26.50
LOCKING RING
TO MOUNT SWITCH
11.1 DIA.
10.5
18.25 63.0
M12 X 0.75 PITCH 12.50 HOLE REQD.
IND-CONTROL/LIMITSWITCH/3000/JAN'06
20.75
HEXLOCK NUT MTG. PLATE LOCATION
1.20 MAX.
BUSHING SEAL SUPPLIED ON OIL RESISTANCE SWITCHES ONLY
ROLLER PLUNGER
26.80
25.68
1.20
2.0
1.50
LOCK WASHER
8.0 DIA.
4.06
6.25 mm
MTG. PLATE
4.76
FULL STROKE
MINIMUM STROKE REQD. TO OPERATE SWITCH
HEX. LOCK NUTS
35.0 MAX. 19.85
M12 X 0.75 PITCH 12.50 HOLE REQD. TO MOUNT SWITCH
2.38
PUSH BUTTON OPERATOR
NORMAL
39.04
OVERTRAVEL 1.57
35.0 MAX.
PRETRAVEL 1.73-2.36
FULL STROKE 5.05 3.56-4.65 Max. TRIP POINT
The repeat accuracy of individual switch RESET OVERTRAVEL trip points is such 0.89mm min. RESET - POINT that after millions of DIFFERENTIAL (TRIP TO TRIP) 1-27 Max. operations they do 2.41-3.18mm not drift more than two or three thousands of an inch.
Heavy Duty Limit Switches BCH Limit Switches are designed with one aim only to help you produce better...faster... with less production down time. These limit switches will keep operating in highly contaminated atmospheres and extremely high shock and vibration conditions. Every limit switch that comes off the Bhartia Cutler-Hammer assembly line passes through rigid quality tests before it reaches you ...
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.
Rotary lever operating heads These heads, which are of the spring return variety, with rotary shafts, can be readily changed on the job to operate clockwise, counter clockwise or in both directions. Operating levers may be rotated and locked on the rotary shaft in any one position, through 3600. The operating head is adjustable in four 900 apart positions. The levers are provided with 19mm dia. metal rollers. Two types of roller lever operators, with a fixed length of 38mm and 76.2mm, are available. A third type had an adjustable length between 32mm and 82.5mm.
Top push operating heads These are available in two designs. One has an adjustable push button, the length of which can be adjusted up to 8 mm. The second type has a metal roller of 11.1mm diameter.
Side push operating head The head is also available with an adjustable push button alternatively a metal roller of 11.1mm dia. These are designed for small space and low travel application where the actuator travel is perpendicular to the switch.
Cat whisker operating head (Nylon & Steel Rod) This head has been designed for applications where extremely low operating force is available. The operator consists of a nylon covered wire/steel rod, which is a spring return switch moving the extension in any direction from the centre operates the contacts.
Contact block The contact mechanism is enclosed in a phenolic moulding with a transparent thermoplastic front cover. The complete unit can be removed and released without the risk of changing the operating characteristic of the limit switch. The single pole double throw, twin break silver contacts (normally open / normally closed change over) provide quick make, quick break action and full contact pressure at all times. There is no point of zero contact pressure - no matter how slowly the switch is operated. Both the normally open and normally closed contacts can be used simultaneously, provided they are connected on the same polarity. The IP 67 degree conformity makes it more suitable for all adverse applications.
Operating Data TYPES Travel to Trip A Travel to reset from trip point B Over Travel C Total Travel D Force to Trip (max.) Kg. Force to be applied at a radius of (mm) Max.
Min.
LSPR LTPR LSPRH NLL1, NLL2 LCW NLLA, NLJW LTPBA LSPBA (mm) (mm) 7-12 6o 34 45 1.0 28
o
1.3 1.1 5.5 6.8 2.0 -
2.0 1.7 5.1 7.0 2.0 -
20 18o 5o 25o 0.285 25.5 o
LLGS
LPGS
(mm)
(mm)
4.5 2.5 2.5 7.0 1.5 -
3.5 2.0 1.0 4.5 1.5 -
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
220V 3.0A
440V 1.5A
550V 1.2A
DC13 rating Voltage 24V Rating 1.0A
60V 0.5A
110V 0.2A
220V 0.1A
A
B
A = Travel to trip B = Travel to reset from trip point C = Over travel D = Total travel
Operational Current and Voltage AC15 rating Voltage 110V Rating 6.0A
D
C
Angular Motion RESET FROM TRIP 500 TOTAL THROW
D
50
0
TRIP
A
Contact Combination : 1NO + 1NC, 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 : 2.5 mm solid or stranded
C
B
OVER TRAVEL
Pilot Devices & Limit Switches Heavy Duty Limit Switch - Snap Action Type NL TYPE
Roller Lever
Push Roller Push Button Cat Whisker Fork Type
General Purpose
DESCRIPTION
CAT. NO SCREW TERMINAL (1NO+1NC)
CAT. NO. PRECABLED (1NO+1NC)
SCREW TERMINAL CAT NO. (2NO+2NC)
PRECABLED CAT NO. (2NO+2NC)
Standard-38mm Standard-76.2mm 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
NLL1C NLL2C NLL4C NLL1MC NLL2MC NLL4MC NLTPRC NLSPRC NLTPBAC NLSPBAC NLCWC NLJWC NLLFC NLLFOC NLLFMC
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
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
NLLFOM LLGS LPGS
NLLFOMC
NLLFM-22
NLLFM-22C
-
-
Spares SP40L1 SP40L2 SP40LA SP40HLG SP40HL SP40HTP B or R SP40HSP B or R SP40CW SP40S1 SP40LF SP40LFO SP40HLM
Wiring Diagram 1NO + 1NC
CATALOGUE
2NO + 2NC
DESCRIPTION CODE 38 mm Lever 76.2 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 - Button R - Roller
-
15 15
18 16
Must be same polarity 11 11
21 21
14 12
24 22
Must be same polarity
Dimensions Conduit Entry
Surface Mounted Side Operated 20.57 DIA.
M 24 X 1.52 THDS.
7.1
10.4 15.9
2 HOLES 5 DIA. FOR FRONT MOUNTING
22º
44.5
12.7
M 20 X 1.5P. THDS.
0.25R
M 20 X 1.5P. THDS. 46
M5 TAPPED 2 HOLES 9.5 DEEP FOR REAR MTG.
7.0
4.0 38.0
5.0
22.9
15.9
4.8
1.5
11.0
10.7
27.4
11.0
76.2
95.3 R. MAX.
7.16 DIA.
8.7 19.8
9.7 13.2
8.0
DIA.
2.0
107.7
19.0
DIA.
15.9 6.4
6.4
9.5
ROLLER LEVER
TYPE (LA)
4
9.5
HEX.SOCKET SIZE - 4mm
ADJUSTABLE LEVER
19.8
51.6
19.0
8.1
2.7
DIA.
11.1 DIA
9.4
19.0
+ 0.25 13.50 DIA.
8 MAX. ADJUSTMENT
44.0
22.2
12.7
39.7
43.6
2.0
29.4
30.35 NF
9
72
59.5
10.25 4.00
R 0.8 MAX.
97.5
6.4
10.4 39.7
12.7
R 0.8 MAX.
TOP PUSH BUTTON ADJUSTABLE TYPE (TPBA)
TYPE (L1 - L2)
TOP PUSH ROLLER TYPE (TPR)
11.1 DIA
45.2
134.0
16.0
19.0 DIA ROLLER
7.0
19.8
45.2
55.0
SIDE PUSH ROLLER (VERTICAL) 19.8
19.5
19.8
35.5
ROLLER LEVER TYPE (GS)
SIDE PUSH ROLLER (HORIZONTAL) TYPE (SPRH)
TYPE (JW)
3.2 DIA
19.8
2.4
16.0
12.7
¾" DIA. 3CONDUT ENTRY
130.0
8.7
40.0
6.3 DIA PLUNGER
2.7 8 MAX. ADJUSTMENT DIA.
TYPE (SPBA)
81.0
NYLON CUT WHISKERS TYPE (CW)
21.0
SIDE PUSH BUTTON ADJUSTABLE
87.0
39.7
26.0
STEEL ROD WHISKER
50.0
74.0
4.4 DIA. MTG. HOLES.
156.0 MAX.
12.7 26.0
GENERAL PURPOSE LIMIT SWITCHES
Oil Tight Limit Switches (except type LLG) : 500 gms. General Purpose Limit Switch (LLG) : 300 gms.
17.0 2.5
42.5
6.0
4.4
Weights :
4.0
TOP PLUNGER TYPE (PGS)
56.0
4.0
Precision Limit Switches
Precision Limit Switches are designed for industrial applications. These are small in size, reliable in operation, have exceptionally long life and are accurate. 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.
Types Of Operators
Contact Mechanism Quick make & quick break action. Low bounce mechanisms. Long life on high load applications. Serrated-silver stationary contacts, definite wiping action and high contact pressure assure reliability on dry circuit applications. Semi dust-tight moulded, phenolic case of great physical strength and high arc-resisting capacity.
Versatile A wide variety of operators are available for use in combination with the basic switch. These operators with individual mounting variations afford a high degree of versatility.
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
Operational current and voltage AC15 RATING
DOUBLE POLE (2NO + 2 NC CHANGEOVER CONTACTS)
4.0A 2.0A 1.0A 0.8A
3.0A 1.5A 0.8A 0.6A
DC13 RATING SINGLE DOUBLE SINGLE DOUBLE THROW THROW THROW THROW
115V 230V 600V
2.0A 0.5A 0.1A
0.50A 0.20A 0.02A
1.0A 0.3A 0.1A
These are designed for one hole panel mounting. The plunger mechanism is of oil-tight construction and prevents any ingress of oil, including coolant. These operations are designed for an in-line actuating motion with controlled over-travel.
Top Push Roller Plunger
Operators are designed for one hole mounting and are of oil-tight construction. The roller plunger comes assembled either in line with the length of the contact block or at right angles to it. This allows the roller to accept cam or slide operation from any of the four directions.
Six Inch (150 mm) Lever
These operators provide either top and right hand mounting or top and left hand mounting. with this do-it-yourself operator, the lever may be formed by the user to satisfy unusual requirements and can be cut or bent to any desired length or shape.
Roller Lever
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. Operation is provided in both directions.
Selection Chart
SINGLE POLE (1NO + 1NC CHANGEOVER CONTACTS)
110V 240V 440V 600V
Push Button Plunger
0.2A 0.1A -
Mechanical & : 20x106 operations without operator electrical life 10x106 operations with operator Terminal capacity : 2.5mm2 solid or stranded conductors Frequency of operation : 2500 operations per hour (max.)
DESCRIPTION With Top Push Button Operator
CATALOGUE CODE 1NO + 1NC 2NO + 2NC PSTPB
PSTPB2
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
PSTPRB PSTPR2B
With Six Inch Lever Operator (right hand mounting)
PSSILR
PSSIL2R
With Six Inch Lever Operator (left hand mounting)
PSSILL
PSSIL2L
With Roller Lever Operator (right hand mounting)
PSRLR
PSRL2R
With Roller Lever Operator (left hand mounting)
PSRLL
PSRL2L
Without Operator
SP20S1
SP20S2
The Repeat Accuracy Of Individual OPERATING PRESSURE min. 0.387 Kg. max. 0.595 Kg
MAX.
24.6 R.H. MOUNTING
6.35 NOM.
0.78
2.38 14.0
19.8
14.5 17.46
25 - 4
46.8 10.3R
50.0 58.74 66.0 71.44 79.5 TOP & REAR MTG.
14.3
1.6
24.6
4 MTG. HOLES 4.04 DIA. R.H. MOUNTING
RP / 5,000 / Jan. '08
79.5 TOP & REAR MTG.
1.6
11.1 DIA.
MAX.
NOM. UP
9.5 66.0 71.44
10.5
14.5
ROLLER LEVER
4
NOM.UF 31
SIX INCH (150 mm) LEVER
6.35
14.3
20.75 26.50
18.25 63.0
19.0
50.0 58.74
19.85
2.0 2.38 BUSHING SEAL SUPPLIED ON
NOM. FULL STROKE DOWN 4 MTG. HOLES 4.04 DIA.
17.46
LOCKING RING
OIL RESISTANCE SWITCHES ONLY
26.50
LOCKING RING
TO MOUNT SWITCH
11.1 DIA.
10.5
18.25 63.0
M12 X 0.75 PITCH 12.50 HOLE REQD.
IND-CONTROL/LIMITSWITCH/3000/JAN'06
20.75
HEXLOCK NUT MTG. PLATE LOCATION
1.20 MAX.
BUSHING SEAL SUPPLIED ON OIL RESISTANCE SWITCHES ONLY
ROLLER PLUNGER
26.80
25.68
1.20
2.0
1.50
LOCK WASHER
8.0 DIA.
4.06
6.25 mm
MTG. PLATE
4.76
FULL STROKE
MINIMUM STROKE REQD. TO OPERATE SWITCH
HEX. LOCK NUTS
35.0 MAX. 19.85
M12 X 0.75 PITCH 12.50 HOLE REQD. TO MOUNT SWITCH
2.38
PUSH BUTTON OPERATOR
NORMAL
39.04
OVERTRAVEL 1.57
35.0 MAX.
PRETRAVEL 1.73-2.36
FULL STROKE 5.05 3.56-4.65 Max. TRIP POINT
The repeat accuracy of individual switch RESET OVERTRAVEL trip points is such 0.89mm min. RESET - POINT that after millions of DIFFERENTIAL (TRIP TO TRIP) 1-27 Max. operations they do 2.41-3.18mm not drift more than two or three thousands of an inch.
