Magnetic 3TF Series 3P AC contactor 24V 120V 240V 480V 220V 3TF52
Applications:
3TF power contactors are suitable for switching and controlling squirrel cage and slip-ring motors as well as other AC loads,
such as solenoids, capacitors, lighting loads, heating loads and transformer loads.
Standards:
Contactors conform to IS/IEC 60947-4-1. They also carry the CE mark.
Coordinated feeder:
Contactors and bi-relays have been tested for type-2 coordination at Iq = 50kA, 415V AC, 50Hz as per IS/IEC 60947-4-1, for both
fuse protected as well as fuseless motor feeders.
Main parameters and Technical Performance:
| Type | STF52 | STF53 | STF54 | STF55 | STF56 | STF57 | ||
| Rated heating current (A) | 210 | 210 | 300 | 300 | 400 | 550 | ||
| Rated insulation voltage (V) | 690 | |||||||
| Rated impact withstand voltage (KV) | 6 | |||||||
| Rated making capacity | 10le | |||||||
| Rated breaking capacity | 8le | |||||||
| Poles | 3 | |||||||
| Auxiliary contact | 2NO+2NC | 2NO+2NC | 2NO+2NC | 2NO+2NC | 2NO+2NC | 2NO+2NC | ||
| Short-time withstand current(A) | 10S | 1360 | 1640 | 2000 | 2400 | 3200 | 3800 | |
Rated working current(A) |
380V | AC-3 | 170 | 205 | 250 | 300 | 400 | 475 |
| AC-4 | 75 | 96 | 110 | 125 | 150 | 150 | ||
| Controllable motor power (KW) 50Hz |
AC-3 | 220V | 55 | 64 | 78 | 93 | 125 | 145 |
| 380V | 90 | 110 | 132 | 160 | 200 | 250 | ||
| 500V | 118 | 145 | 178 | 210 | 284 | 329 | ||
| 660V | 156 | 156 | 235 | 235 | 375 | 375 | ||
| AC-4 | 380V | 38 | 50 | 58 | 66 | 81 | 81 | |
| 660V | 66 | 86 | 100 | 114 | 140 | 140 | ||
| Operation frequency (times/h) | AC-3 | 300 | 300 | 300 | 300 | 120 | 120 | |
| AC-4 | 300 | 120 | 120 | 120 | 120 | 120 | ||
| Electrical life (10000/times) | AC-3 | 60 | 60 | 60 | 60 | 60 | 60 | |
| AC-4 | 10 | 10 | 10 | 10 | 10 | 10 | ||
| Mechanical life (10000/times) | 600 | 600 | 600 | 600 | 600 | 600 | ||
| Attracting Coil working voltage tolerance (AC) | (85%～110%)Us +40℃ | |||||||
| Attracting Coil power consumption | Keeping (VA) | 58 | 58 | 84 | 84 | 115 | 115 | |
| Pick-up(VA) | 910 | 910 | 1430 | 1430 | 2450 | 2450 | ||
| Auxiliary contact conventional thermal current(A) | 10 | 10 | 10 | 10 | 10 | 10 | ||
| Auxiliary contact rated insulation voltage (V) | 690 | 690 | 690 | 690 | 690 | 690 | ||
| Auxiliary contact rated working current (A) | AC-15 | 380V | 4 | 4 | 4 | 4 | 4 | 4 |
| 220V | 6 | 6 | 6 | 6 | 6 | 6 | ||
| DC-13 | 110V | 1.14 | 1.14 | 1.14 | 1.14 | 1.14 | 1.14 | |
| 220V | 0.48 | 0.48 | 0.48 | 0.48 | 0.48 | 0.48 | ||
Working and Installation Condition:
♦ Ambient air temperature: -5℃--+40℃ and average not more than +35℃ within 24 hours;
♦ Altitude: ≤ 2000m;
♦ Air condition: when the highest temperature is +40℃, the air relative humidity is not up to 50%, but the higher humidity is allowed at lower temperature. Like, 90% humidity at 20℃. The condensate dew should be considered when at lower temperature;
♦ Pollution degree: Class 3
♦ Installation category:III
♦ Protection degree: IP20
♦ Installation condition: the gradient angle between installation side and vertical side should not be more than ±5℃
♦ Impact and vibrattion: the contactor must be installed and operate under the circumstances of no obvious shaking, impact and vibration.
Appearance and Installation Dimension:
Installation dimension:
| Type | A max | B max | C max | a | b | ∅ |
|
SFC52 |
140 | 185 | 190 | 110 | 160 | 7.0 |
| SFC53 | 140 | 185 | 190 | 110 | 160 | 7.0 |
| SFC54 | 150 | 205 | 205 | 120 | 180 | 9.0 |
| SFC55 | 150 | 205 | 205 | 120 | 180 | 9.0 |
| SFC56 | 165 | 205 | 230 | 130 | 180 | 9.0 |
| SFC57 | 165 | 205 | 230 | 130 | 180 | 9.0 |
