3RT2028-2BB40-ZX95 - Siemens
MPN3RT2028-2BB40-ZX95
Active
CONTACTOR, AC-3, 18.5KW/400V, 1NO+1NC, DC 24V, 3-POLE, SZ S0 SPRING-LOADED TERMINAL REUSABLE PACKAGING; PACKAGE = 40 UNIT(S)
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 | spring-loaded terminals |
| Aux. / control circuit connection | spring-loaded terminals |
| Conductor cross-section, solid | 1 ... 10 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 | 45 mm |
| Height | 102 mm |
| Depth | 107 mm |
Frequently asked questions
What is the coil voltage of the Siemens 3RT2028-2BB40-ZX95?
Confirms the 24V DC coil match before ordering or designing the control circuit.
What does the -ZX95 suffix mean on Siemens 3RT2028 contactors?
Distinguishes the reusable bulk-pack version from the standard single-unit SKU to avoid wrong-pack orders.
What is the difference between 3RT2028-2BB40 and 3RT2028-2BB40-ZX95?
Clarifies packaging and terminal differences affecting part selection and BOM accuracy.
What is the AC-3 rating of the Siemens 3RT2028-2BB40-ZX95?
Verifies the 18.5kW/400V motor load capability against application sizing requirements.
What are the spring-loaded terminals on a 3RT2028-2BB40-ZX95?
Spring (push-in) terminals change wiring tool, torque, and retrofit considerations versus screw terminals.
Where can I buy the 3RT2028-2BB40-ZX95 with stock and price?
Directs buyers to authorized distributors and live stock checks for accurate lead-time planning.
MPN
3RT2028-2BB40-ZX95