3TK1142-0AB0 AC-1 CONTACTOR, 4-POLE, 250 A,
From SIEMENS
| Contactor, AC-1, 4-pin, 250 A, main contacts 4 NO, Auxiliary contacts 2 NO + 2 NC, AC operation 24 V AC 50Hz !!! Phased-out product !!! Successor is SIRIUS 3RT Preferred successor type is 3RT1363-6AE36 | ||
| Protection class IP on the front | IP00 | |
| Reference code acc. to DIN 40719 extended according to IEC 204-2 acc. to IEC 750 | K | |
| Reference code acc. to DIN EN 81346-2 | Q | |
| Reference code acc. to DIN EN 61346-2 | Q | |
| Ambient temperature during operation | -25 ... +55 °C | |
| Number of poles for main current circuit | 4 | |
| Number of NO contacts for main contacts | 4 | |
| Number of NC contacts for main contacts | 0 | |
| Operating current | ||
| at AC-1 at 400 V | ||
| — at ambient temperature 40 °C rated value | 250 A | |
| at AC-3 at 400 V rated value | 145 A | |
| Operating power | ||
| at AC-1 at 400 V rated value | 165 kW | |
| at AC-3 at 400 V rated value | 75 kW | |
| Type of voltage of the control supply voltage | AC | |
| Control supply voltage at AC | ||
| at 50 Hz rated value | 24 V | |
| Control supply voltage frequency | ||
| 1 rated value | 50 Hz | |
| 2 rated value | 50 Hz | |
| Control version of the switch operating mechanism | conventional | |
| Number of NC contacts for auxiliary contacts | 2 | |
| instantaneous contact | 2 | |
| lagging switching | 0 | |
| Number of NO contacts for auxiliary contacts | ||
| instantaneous contact | 2 | |
| leading contact | 0 | |
| Identification number and letter for switching elements | 22 | |
| Mounting type | screw fixing | |
| Side-by-side mounting | Yes | |
| Height | 156 mm | |
| Width | 186 mm | |
| Depth | 154.5 mm | |
| Type of electrical connection | ||
| for main current circuit | screw-type terminals | |
| for auxiliary and control current circuit | screw-type terminals | |
