3RT2028-1BM40-0JA0 - Siemens
MPN3RT2028-1BM40-0JA0
Active
CONTACTOR, AC-3, 18.5KW/400V, 1NO+1NC, DC 220V, 3-POLE, SZ S0, INDIA 40 A SCREW TERMINAL
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S0 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 22 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 5 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 | DC |
| 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: 125A (690V,100kA), aM: 50A (690V,100kA), BS88: 125A (415V,80kA) |
| Short-circuit coordination type 2, fuse | gG: 50A (690V,100kA), aM: 25A (690V, 100kA), BS88: 50A (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 | screw-type terminals |
| Conductor cross-section, solid | 1 ... 10 mm² |
| Conductor cross-section, solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 standard mounting 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 ... +50 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 85 mm |
| Depth | 107 mm |
Frequently asked questions
What is the coil voltage and AC-3 rating of the 3RT2028-1BM40-0JA0?
Buyers must confirm 220VDC coil and 18.5kW/400V AC-3 rating match their panel design before purchase.
What is the difference between the 3RT2028 and 3RT2026 contactors?
Engineers comparing frame sizes need to know current and power rating differences to avoid undersizing.
Is the 3RT2028-1BM40-0JA0 a direct replacement for the 3RT2028-1BB40?
Drop-in compatibility determines whether existing wiring and footprint can be reused during retrofit.
How do you wire the 1NO+1NC auxiliary contacts on the 3RT2028-1BM40-0JA0?
Correct wiring is required for control circuit safety and proper contactor operation.
What is the current price and stock availability of the 3RT2028-1BM40-0JA0 in India?
Sourcing decisions hinge on real-time price and authorized-distributor availability in the India market.
What are approved cross-reference or replacement part numbers for the 3RT2028-1BM40-0JA0?
Cross references help buyers find equivalents when the OEM part is out of stock or obsolete.
MPN
3RT2028-1BM40-0JA0