Item code: 3RA2816-0EW20
- Unit
- Chưa cập nhật
Loading content…
No online payment is required. TESFA will verify the item code, quantity, supply conditions and respond with a quotation using your contact details.
For MRO items, verifying the correct code matters more than selecting by image. TESFA checks the key technical points before confirming a quotation.

Tiếp điểm phụ SIEMENS 3RH1921-1EA11. product brand name: SIRIUS; product category: Auxiliary switch; product designation: auxiliary switch.
Item code
3RH1921-1EA11
Unit
Chưa cập nhật
Supply status
Contact for quote
Required quantity (Chưa cập nhật)
No online payment is required. TESFA will verify the item code, quantity, supply conditions and respond with a quotation using your contact details.
For MRO items, verifying the correct code matters more than selecting by image. TESFA checks the key technical points before confirming a quotation.
| Attribute | Product specification |
|---|---|
| Mã sản phẩm | 3RH1921-1EA11 |
| Tên gọi chính hãng | first lateral auxiliary switch 1 NO, 1 NC, screw terminal, for contactors 3RT1 |
| product brand name | SIRIUS |
| product category | Auxiliary switch |
| product designation | auxiliary switch |
| design of the product | first laterally mountable |
| product type designation | 3RH19 |
| suitability for use | for 3RT10, 3RT12, 3RT145, 3RT146, 3RT147 |
| General technical data / insulation voltage with degree of pollution 3 at AC rated value | 500 V |
| General technical data / surge voltage resistance rated value | 6 kV |
| General technical data / protection class IP on the front | IP20 |
| General technical data / mechanical service life (operating cycles) typical | 10 000 000 |
| General technical data / electrical endurance (operating cycles) at AC-15 at 230 V typical | 200 000 |
| General technical data / Substance Prohibitance (day/month/year) | 07/01/2006 |
| General technical data / Net Weight | 49 g |
| General technical data / number of NC contacts for auxiliary contacts / instantaneous contact | 1 |
| General technical data / number of NO contacts for auxiliary contacts / instantaneous contact | 1 |
| General technical data / number of CO contacts of auxiliary contacts instantaneous contact | 0 |
| General technical data / operational current of auxiliary contacts at AC-12 / at 24 V | 10 A |
| General technical data / operational current of auxiliary contacts at AC-12 / at 230 V | 10 A |
| General technical data / operational current of auxiliary contacts at AC-14 / at 125 V | 6 A |
| General technical data / operational current of auxiliary contacts at AC-14 / at 250 V | 6 A |
| General technical data / operational current of auxiliary contacts at AC-12 maximum | 10 A |
| General technical data / operational current of auxiliary contacts at AC-15 / at 24 V | 6 A |
| General technical data / operational current of auxiliary contacts at AC-15 / at 230 V | 6 A |
| General technical data / operational current of auxiliary contacts at AC-15 / at 400 V | 3 A |
| General technical data / operational current of auxiliary contacts at DC-12 / at 24 V | 10 A |
| General technical data / operational current of auxiliary contacts at DC-12 / at 110 V | 3 A |
| General technical data / operational current of auxiliary contacts at DC-12 / at 220 V | 1 A |
| General technical data / operational current with 2 current paths in series at DC-12 / at 24 V rated value | 10 A |
| General technical data / operational current with 2 current paths in series at DC-12 / at 60 V rated value | 10 A |
| General technical data / operational current with 2 current paths in series at DC-12 / at 110 V rated value | 4 A |
| at 220 V rated value | 2 A |
| at 440 V rated value | 1.3 A |
| operational current with 3 current paths in series at DC-12 / at 24 V rated value | 10 A |
| operational current with 3 current paths in series at DC-12 / at 60 V rated value | 10 A |
| operational current with 3 current paths in series at DC-12 / at 110 V rated value | 10 A |
| operational current with 3 current paths in series at DC-12 / at 220 V rated value | 3.6 A |
| operational current with 3 current paths in series at DC-12 / at 440 V rated value | 2.5 A |
| operational current with 2 current paths in series at DC-13 / at 24 V rated value | 10 A |
| operational current with 2 current paths in series at DC-13 / at 60 V rated value | 3.5 A |
| operational current with 2 current paths in series at DC-13 / at 110 V rated value | 1.3 A |
| operational current with 2 current paths in series at DC-13 / at 220 V rated value | 0.9 A |
| operational current with 2 current paths in series at DC-13 / at 440 V rated value | 0.2 A |
| operational current with 3 current paths in series at DC-13 / at 24 V rated value | 10 A |
| operational current with 3 current paths in series at DC-13 / at 60 V rated value | 4.7 A |
| operational current with 3 current paths in series at DC-13 / at 110 V rated value | 3 A |
| operational current with 3 current paths in series at DC-13 / at 220 V rated value | 1.2 A |
| operational current with 3 current paths in series at DC-13 / at 440 V rated value | 0.5 A |
| operational current of auxiliary contacts at DC-13 / at 24 V | 6 A |
| operational current of auxiliary contacts at DC-13 / at 48 V | 2 A |
| operational current of auxiliary contacts at DC-13 / at 60 V | 2 A |
| operational current of auxiliary contacts at DC-13 / at 110 V | 1 A |
| operational current of auxiliary contacts at DC-13 / at 125 V | 0.9 A |
| operational current of auxiliary contacts at DC-13 / at 220 V | 0.3 A |
| operational current of auxiliary contacts at DC-13 / at 250 V | 0.3 A |
| design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V | C characteristic: 10 A; 0.4 kA |
| contact reliability of auxiliary contacts | 1 faulty switching per 100 million (17 V, 1 mA) |
| Ambient conditions / ambient temperature / during operation | -25 ... +60 °C |
| Ambient conditions / ambient temperature / during storage | -55 ... +80 °C |
| Safety related data / product function / mirror contact according to IEC 60947-4-1 | Yes; with 3RT1 |
| Safety related data / product function / positively driven operation according to IEC 60947-5-1 | No |
| Short-circuit protection / design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V | C characteristic: 10 A; 0.4 kA |
| Short-circuit protection / design of the fuse link for short-circuit protection of the auxiliary switch required | gG: 10 A (500 V, 1 kA) |
| Installation/ mounting/ dimensions / fastening method | snap-on mounting |
| Installation/ mounting/ dimensions / height | 80 mm |
| Installation/ mounting/ dimensions / width | 10 mm |
| Installation/ mounting/ dimensions / depth | 71 mm |
| Connections/ Terminals / type of electrical connection for auxiliary and control circuit | screw-type terminals |
| Connections/ Terminals / connectable conductor cross-section for auxiliary contacts / solid or stranded | 0.5 ... 2.5 mm² |
| Connections/ Terminals / connectable conductor cross-section for auxiliary contacts / finely stranded with core end processing | 0.5 ... 2.5 mm² |
| type of connectable conductor cross-sections / for auxiliary contacts / solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| type of connectable conductor cross-sections / for auxiliary contacts / finely stranded with core end processing | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Connections/ Terminals / type of connectable conductor cross-sections / for AWG cables for auxiliary contacts | 2x (20 ... 16), 2x (18 ... 14) |
| AWG number as coded connectable conductor cross section for auxiliary contacts | 20 ... 14 |
| Links / left / 51 63 | 71 83 |
| Links / left / 52 64 | 72 84 |
Item code: 3RA2816-0EW20
Item code: 3RT2035-1NB30
Item code: 6MF2805-0AA00
Item code: 6ES7440-1CS00-0YE0
Hướng dẫn đọc mã van điện từ SMC dòng SY3000, SY5000, SY7000 và SY9000 theo catalog hãng, kèm ví dụ SKU thật và checklist tránh đặt nhầm cấu hình.
Theo đường đi của khí nén để hiểu tiền điện đến từ đâu, tính thử chi phí và chuẩn bị checklist kiểm tra rò rỉ trong nhà máy.
Chọn ống khí PU/PA theo kích thước, áp suất tại nhiệt độ dùng, bán kính uốn và môi trường. Có bảng đối chiếu và checklist thay ống MRO.