Rated coil voltage is 20–33 V, with an inrush current peak of 6.5 A. The contactor handles AC-1 loads up to 900 switching cycles per hour, AC-3 at 850 cycles/h, and AC-4 at 200 cycles/h — the AC-3 figure governs typical motor starting duty. Depth is 152 mm, width 70 mm, height 140 mm. Solid wire range 2.5–16 mm² for main contacts; stranded accepts 6–70 mm².
Siemens 3RT2047-3NB30 SIRIUS Power Contactor, Size S3, 152 m
MPN3RT2047-3NB30
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Siemens SIRIUS power contactor, Size S3, 3RT2047-3NB30, screw and snap-on mounting onto 35 mm DIN rail, spring-type terminals, 152 mm depth.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S3 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 97 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 20 hp |
| Rated value @ 24 V | 10 A |
| Rated value @ 60 V | 2 A |
| Rated value @ 110 V | 1 A |
| Rated value @ 220 V | 0.3 A |
| Parameter | Value |
|---|---|
| Control supply voltage type | AC/DC |
| Rated value @ 50 Hz | 3.5 VA |
| Rated value @ 50 Hz | 20 ... 33 V |
| Parameter | Value |
|---|---|
| Main poles | 3 |
| Main NO contacts | 3 |
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Parameter | Value |
|---|---|
| Short-circuit coordination type 1, fuse | gG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA) |
| Short-circuit coordination type 2, fuse | gG: 200A (690V,100kA), aM: 100A (690V,100kA), BS88: 160A (415V,80kA) |
| 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 | spring-loaded terminals |
| Conductor cross-section, solid | 2.5 ... 16 mm² |
| Conductor cross-section, solid or stranded | 2x (0.5 ... 2.5 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 1.5 mm²) |
| Mounting method | screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715 |
| Side-by-side mounting | Yes |
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 10 000 000 |
| Durability with aux. switch block (cycles, typ.) | 10 000 000 |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 70 mm |
| Height | 140 mm |
| Depth | 152 mm |
| Parameter | Value |
|---|---|
| At AC | 38 ... 57 ms |
Product details
Frequently asked questions
Where can I buy 3RT2047-3NB30?
This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
What is the depth of 3RT2047-3NB30?
The depth is 152 mm.
What solid wire range does 3RT2047-3NB30 accept?
Solid wire range is 2.5 to 16 mm² for the main contacts.
Will 3RT2047-3NB30 drop into a panel specified around 3RT1055-6QF35?
Both are SIRIUS power contactors, but the 3RT2047-3NB30 is Size S3 with a depth of 152 mm; the 3RT1055-6QF35 is a different size class. Verify mounting footprint and terminal clearances before substitution — the DIN rail mounting method is the same, but panel fill factor may differ.
MPN
3RT2047-3NB30