Description
The contactor is an electrically controlled switch used for switching an electrical power circuit, similar to a relay except with higher current ratings and a few other differences, the contactor is controlled by a circuit which has a much lower power level than the switched circuit.
Contactors come in many forms with varying capacities and features. Unlike a circuit breaker, a contactor is not intended to interrupt a short circuit current. Contactors range from those having a breaking current of several amperes to thousands of amperes and 24 V DC to many kilovolts. The physical size of contactors ranges from a device small enough to pick up with one hand, to large devices approximately a meter on a side.Contactors are used to control electric motors, lighting, heating, capacitor banks, thermal evaporators, and other electrical loads.
Contactors are rated by designed load current per contact (pole),maximum fault withstand current, duty cycle, design life expectancy, voltage, and coil voltage. A general purpose motor control contactor may be suitable for heavy starting duty on large motors; so-called “definite purpose” contactors are carefully adapted to such applications as air-conditioning compressor motor starting.
IEC utilization categories
The current rating of the contactor depends on utilization category. Example IEC categories in standard 60947 are described as:
- AC-1– Non-inductive or slightly inductive loads, resistance furnaces
- AC-2– Starting of slip-ring motors: starting, switching-off
- AC-3– Starting of squirrel-cage motors and switching-off only after the motor is up to speed. (Make Locked Rotor Amps (LRA), Break Full Load Amps (FLA))
- AC-4– Starting of squirrel-cage motors with inching and plugging duty. Rapid Start/Stop. (Make and Break LRA)
Relays and auxiliary contact blocks are rated according to IEC 60947-5-1.
- AC-15– Control of electromagnetic loads (>72 VA)
- DC-13– Control of electromagnets
TOC2 series AC Contactor is suitable for using in the circuits up to the rated voltage 660V AC 50/60Hz, rated current up to 620A, for making, breaking, frequently starting & controlling the AC motor. Combined with the auxiliary contact block, timer delay & machine-interlocking device etc, it becomes the delay contactor, mechanical interlocking contactor, star-delta starter. With the thermal relay, it is combined into the electromagnetic starter. The product conforms to IEC60947-4-1 stardand.
Type | Toc2-D09 | Toc2-D12 | Toc2-D18 | TOC2-D25 | TOC2-D32 | Toc2-D40 | Toc2-D50 | Toc2-D65 | Toc2-D80 | Toc2-D95 | ||
Rated working current (A) |
AC3 | 9 | 12 | 18 | 25 | 32 | 40 | 50 | 65 | 80 | 95 | |
AC4 | 3.5 | 5 | 7.7 | 8.5 | 12 | 18.5 | 24 | 28 | 37 | 44 | ||
Standard power Ratings of 3-phase motors 50/ 60Hz in |
220/230V | 2.2 | 3 | 4 | 5.5 | 7.5 | 11 | 15 | 18.5 | 22 | 25 | |
380/400V | 4 | 5.5 | 7.5 | 11 | 15 | 18.5 | 22 | 30 | 37 | 45 | ||
415V | 4 | 5.5 | 9 | 11 | 15 | 22 | 25 | 37 | 45 | 45 | ||
500V | 5.5 | 7.5 | 10 | 15 | 18.5 | 22 | 30 | 37 | 55 | 55 | ||
660V/690V | 5.5 | 7.5 | 10 | 15 | 18.5 | 30 | 33 | 37 | 45 | 55 | ||
Rated heat current (A) | 20 | 20 | 32 | 40 | 50 | 60 | 80 | 80 | 125 | 125 | ||
Electrical life | AC3 (x10⁴) | 100 | 100 | 100 | 100 | 80 | 80 | 60 | 60 | 60 | 60 | |
AC4 (x10⁴) | 20 | 20 | 20 | 20 | 20 | 15 | 15 | 15 | 10 | 10 | ||
Mechanical life (x104) | 1000 | 1000 | 1000 | 1000 | 1000 | 800 | 800 | 800 | 800 | 600 | 600 | |
Number of the contacts | 3P+NO | 3P+NC+NO | ||||||||||
3P+NC |
Type | Toc2-D115 | Toc2-D150 | Toc2-D170 | TOC2-D205 | TOC2-D245 | Toc2-D300 | Toc2-D410 | Toc2-D475 | Toc2-D620 | |
Rated working current (A) | AC3 | 115 | 150 | 170 | 205 | 245 | 300 | 410 | 475 | 620 |
AC4 | 52 | 60 | 75 | 85 | 105 | 117 | 138 | 147 | 180 | |
Standard power Ratings of 3-phase motors 50/ 60Hz in category AC-3(kW) |
220/230V | 30 | 40 | 55 | 63 | 75 | 100 | 110 | 147 | 200 |
380/400V | 55 | 75 | 90 | 110 | 132 | 160 | 220 | 265 | 335 | |
415V | 59 | 80 | 110 | 110 | 132 | 180 | 220 | 280 | 375 | |
500V | 75 | 90 | 110 | 129 | 160 | 200 | 250 | 355 | 400 | |
660V/690V | 80 | 100 | 110 | 129 | 160 | 220 | 280 | 355 | 450 | |
Rated heat current (A) | 200 | 250 | 250 | 275 | 315 | 400 | 500 | 700 | 1000 | |
Electrical life | AC3 (x10⁴) | 200 | 60 | 60 | 50 | 50 | 50 | 30 | 30 | 20 |
AC4 (x10⁴) | 15 | 15 | 15 | 15 | 15 | 15 | 8 | 8 | 5 | |
Number of the contacts | 300 | 300 | 300 | 300 | 300 | 300 | 100 | 100 | 100 |
Type | A | B | C | D | E | a | b | Ø |
TOC2-D09~12 | 47 | 76 | 82 | 113 | 133 | 34/35 | 50/60 | 4.5 |
TOC2-D18 | 47 | 76 | 87 | 118 | 138 | 34/35 | 50/60 | 4.5 |
TOC2-D25 | 57 | 86 | 95 | 126 | 146 | 40 | 48 | 4.5 |
TOC2-D32 | 57 | 86 | 100 | 131 | 151 | 40 | 48 | 4.5 |
TOC2-D40~65 | 77 | 129 | 116 | 145 | 165 | 40 | 100/110 | 6.5 |
TOC2-D80~95 | 87 | 129 | 127 | 175 | 195 | 40 | 100/110 | 6.5 |
Type | A | B | C | b1 | P | Q | S | Q1 | M | N | L | Ø | Ga | Ha |
TOC2-D115 | 158 | 120 | 132 | 158 | 35 | 60 | 17 | 25 | 134 | 96.2 | 75 | M6 | – | – |
TOC2-D150 | 158 | 120 | 132 | 158 | 35 | 60 | 17 | 25 | 134 | 96.2 | 75 | M6 | – | – |
TOC2-D170 | 158 | 120 | 132 | 158 | 35 | 60 | 17 | 25 | 134 | 96.2 | 75 | M6 | – | – |
TOC2-D205 | 168.5 | 174 | 181 | 137 | 40 | 69 | 20 | 59.4 | 154 | 127 | 113.5 | M8 | 80 | 120-106 |
TOC2-D245 | 168.5 | 197 | 181 | 137 | 48 | 69 | 25 | 51.5 | 172 | 127 | 113.5 M10 | 80 | 120-106 | |
TOC2-D300 | 213 | 206 | 219 | 145 | 48 | 91 | 25 | 74 | 181 | 158 | 145 | M10 | 80 | 120-106 |
TOC2-D410 | 213 | 206 | 219 | 209 | 48 | 91 | 25 | 74 | 181 | 158 | 145 | M10 | 80 | 120-106 |
TOC2-D475 | 233 | 238 | 232 | 209 | 55 | 108 | 30 | 77 | 208 | 172 | 146 | M10 | 80 | 180 |
TOC2-D620 | 309 | 304 | 255 | 280 | 80 | 140 | 40 | 89 | 264 | 202 | 155 | M12 | 80 | 180 |
- + General
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The contactor is an electrically controlled switch used for switching an electrical power circuit, similar to a relay except with higher current ratings and a few other differences, the contactor is controlled by a circuit which has a much lower power level than the switched circuit.
Contactors come in many forms with varying capacities and features. Unlike a circuit breaker, a contactor is not intended to interrupt a short circuit current. Contactors range from those having a breaking current of several amperes to thousands of amperes and 24 V DC to many kilovolts. The physical size of contactors ranges from a device small enough to pick up with one hand, to large devices approximately a meter on a side.Contactors are used to control electric motors, lighting, heating, capacitor banks, thermal evaporators, and other electrical loads.
Contactors are rated by designed load current per contact (pole),maximum fault withstand current, duty cycle, design life expectancy, voltage, and coil voltage. A general purpose motor control contactor may be suitable for heavy starting duty on large motors; so-called “definite purpose” contactors are carefully adapted to such applications as air-conditioning compressor motor starting.
IEC utilization categories
The current rating of the contactor depends on utilization category. Example IEC categories in standard 60947 are described as:
- AC-1– Non-inductive or slightly inductive loads, resistance furnaces
- AC-2– Starting of slip-ring motors: starting, switching-off
- AC-3– Starting of squirrel-cage motors and switching-off only after the motor is up to speed. (Make Locked Rotor Amps (LRA), Break Full Load Amps (FLA))
- AC-4– Starting of squirrel-cage motors with inching and plugging duty. Rapid Start/Stop. (Make and Break LRA)
Relays and auxiliary contact blocks are rated according to IEC 60947-5-1.
- AC-15– Control of electromagnetic loads (>72 VA)
- DC-13– Control of electromagnets
- + Feature
-
TOC2 series AC Contactor is suitable for using in the circuits up to the rated voltage 660V AC 50/60Hz, rated current up to 620A, for making, breaking, frequently starting & controlling the AC motor. Combined with the auxiliary contact block, timer delay & machine-interlocking device etc, it becomes the delay contactor, mechanical interlocking contactor, star-delta starter. With the thermal relay, it is combined into the electromagnetic starter. The product conforms to IEC60947-4-1 stardand.
- + Technical Data
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Type Toc2-D09 Toc2-D12 Toc2-D18 TOC2-D25 TOC2-D32 Toc2-D40 Toc2-D50 Toc2-D65 Toc2-D80 Toc2-D95 Rated working
current (A)AC3 9 12 18 25 32 40 50 65 80 95 AC4 3.5 5 7.7 8.5 12 18.5 24 28 37 44 Standard power
Ratings of
3-phase motors 50/
60Hz in220/230V 2.2 3 4 5.5 7.5 11 15 18.5 22 25 380/400V 4 5.5 7.5 11 15 18.5 22 30 37 45 415V 4 5.5 9 11 15 22 25 37 45 45 500V 5.5 7.5 10 15 18.5 22 30 37 55 55 660V/690V 5.5 7.5 10 15 18.5 30 33 37 45 55 Rated heat current (A) 20 20 32 40 50 60 80 80 125 125 Electrical life AC3 (x10⁴) 100 100 100 100 80 80 60 60 60 60 AC4 (x10⁴) 20 20 20 20 20 15 15 15 10 10 Mechanical life (x104) 1000 1000 1000 1000 1000 800 800 800 800 600 600 Number of the contacts 3P+NO 3P+NC+NO 3P+NC Type Toc2-D115 Toc2-D150 Toc2-D170 TOC2-D205 TOC2-D245 Toc2-D300 Toc2-D410 Toc2-D475 Toc2-D620 Rated working current (A) AC3 115 150 170 205 245 300 410 475 620 AC4 52 60 75 85 105 117 138 147 180 Standard power
Ratings of
3-phase motors 50/
60Hz in category
AC-3(kW)220/230V 30 40 55 63 75 100 110 147 200 380/400V 55 75 90 110 132 160 220 265 335 415V 59 80 110 110 132 180 220 280 375 500V 75 90 110 129 160 200 250 355 400 660V/690V 80 100 110 129 160 220 280 355 450 Rated heat current (A) 200 250 250 275 315 400 500 700 1000 Electrical life AC3 (x10⁴) 200 60 60 50 50 50 30 30 20 AC4 (x10⁴) 15 15 15 15 15 15 8 8 5 Number of the contacts 300 300 300 300 300 300 100 100 100 - + Dimension
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Type A B C D E a b Ø TOC2-D09~12 47 76 82 113 133 34/35 50/60 4.5 TOC2-D18 47 76 87 118 138 34/35 50/60 4.5 TOC2-D25 57 86 95 126 146 40 48 4.5 TOC2-D32 57 86 100 131 151 40 48 4.5 TOC2-D40~65 77 129 116 145 165 40 100/110 6.5 TOC2-D80~95 87 129 127 175 195 40 100/110 6.5 Type A B C b1 P Q S Q1 M N L Ø Ga Ha TOC2-D115 158 120 132 158 35 60 17 25 134 96.2 75 M6 – – TOC2-D150 158 120 132 158 35 60 17 25 134 96.2 75 M6 – – TOC2-D170 158 120 132 158 35 60 17 25 134 96.2 75 M6 – – TOC2-D205 168.5 174 181 137 40 69 20 59.4 154 127 113.5 M8 80 120-106 TOC2-D245 168.5 197 181 137 48 69 25 51.5 172 127 113.5 M10 80 120-106 TOC2-D300 213 206 219 145 48 91 25 74 181 158 145 M10 80 120-106 TOC2-D410 213 206 219 209 48 91 25 74 181 158 145 M10 80 120-106 TOC2-D475 233 238 232 209 55 108 30 77 208 172 146 M10 80 180 TOC2-D620 309 304 255 280 80 140 40 89 264 202 155 M12 80 180 - + Inquiry
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