Siemens 3RT2646-1NB35 contactor, AC/DC magnet coil, screw-type terminals, 80 mm width, 140 mm height, 152 mm depth, screw and snap-on mounting onto 35 mm DIN rail.
| Parameter | Value |
|---|---|
| Contactor frame size | S3 |
| Parameter | Value |
|---|---|
| Control supply voltage type | AC/DC |
| Rated value @ 50 Hz | 0.8 ... 1.1 |
| Rated value @ 50 Hz | 20 ... 33 V |
| Parameter | Value |
|---|---|
| Main poles | 3 |
| Main NO contacts | 3 |
| Auxiliary contact reliability | 0.00000001 |
| Parameter | Value |
|---|---|
| Aux. switch short-circuit protection, fuse | gG: 10 A (500 V, 1 kA) |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Aux. / control circuit connection | screw-type terminals |
| Conductor cross-section, solid | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm² |
| Conductor cross-section, solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm² |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Mounting method | screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022 |
| Parameter | Value |
|---|---|
| Durability with aux. switch block (cycles, typ.) | 3 000 000 |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 80 mm |
| Height | 140 mm |
| Depth | 152 mm |
| Parameter | Value |
|---|---|
| At AC | 38 ... 57 ms |
The 3RT2646-1NB35: Rated current is specified at 40 °C with 1x 70 mm² conductor and at 60 °C with 2x 50 mm² — the derating reflects the conductor cross-section and ambient temperature, not the contactor's own thermal limit.
An auxiliary switch block is attachable (1 unit), expanding the contactor's feedback capability for PLC or safety circuit monitoring.
Stranded conductors: 2x (10–70 mm²) or 1x (10–70 mm²). All terminate at screw-type terminals.
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