Railway contactor, AC-3 115 A, 55 kW / 400 V coil DC 110 V x (0.7-1.25) PLC input 24-110 V DC auxiliary contacts 2 NO + 2 NC 3-pole size S6 with box terminals coil connection: screw connection SIRIUS 3RT1 power contactor for switching motors under extreme conditions, e.g. for railway applications. The 3RT1 contactors are part of the SIRIUS modular system with its optimally coordinated products. They impress with their high performance combined with a compact design and high contact reliability. They can be combined in many ways with other components in the load feeder. The contactors offer the right connection to the control system for every application (directly or via PLC input). Pre-assembled auxiliary switches reduce the complexity of your setup. The 3RT1 contactors are climate-resistant, approved worldwide (e.g. IEC and UL/CSA) and IE3/IE4ready. This variant is characterized by an extended operating and temperature range for harsher environmental conditions. They are available in various sizes and in a wide power range. They have a wide DC voltage range and a PLC control input. In the main circuit, the devices can be connected via rails or box terminals. For the auxiliary and control circuits, they are also available with spring-loaded connections for a quick, maintenance-free and vibration-proof connection. There are a wide range of accessories for these contactors, such as wiring kits that significantly reduce the wiring effort, auxiliary switches or terminal covers. The 3RT1 power contactors for extreme conditions replace the proven 3TB5 series. Simple, efficient, always up-to-date - the SIRIUS modular system.
| Property | Value |
| Number of normally open contacts as main contacts: | 3 |
| Number of auxiliary contacts as normally closed contacts: | 2 |
| Number of auxiliary contacts as normally open contacts: | 2 |
| Rated operating power at AC-3, 400 V: | 55 kW |
| Rated operating power at AC-4, 400 V: | 55 kW |
| Rated operating current Ie at AC-1, 400 V: | 160 A |
| Rated operating current Ie at AC-3, 400 V: | 115 A |
| Rated operating current Ie at AC-4, 400 V: | 97 A |
| Voltage type for actuation: | DC |
| Rated control supply voltage Us at DC: | 110 V |
| Suitable for series installation: | yes |
| Rated operating power NEMA: | 73.549875 kW |
