Siemens 3RH1921-1EA02
The 3RH1921-1EA02 from Siemens is an auxiliary switch block designed to provide reliable switching capabilities in various applications. This unit features two normally closed contacts and operates effectively within a rated current of 10A at a voltage of 240 V.
This Siemens 3RH1921-1EA02 is supplied brand new by PartLogic for switching, motor protection, starting, control panel builds, machinery maintenance and industrial electrical applications. It forms part of our Industrial automation > Motor control > Contactors > Accessories range and is referenced internally as PartLogic SKU PL26801734385.
Before ordering, please confirm the manufacturer part number, product specifications and compatibility with your existing equipment. If you are replacing a failed, obsolete or hard-to-find part, contact PartLogic and we can help check suitability or source related components.
| 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 |
| insulation voltage with degree of pollution 3 at AC rated value | 500 V |
| surge voltage resistance rated value | 6 kV |
| protection class IP on the front | IP20 |
| mechanical service life (operating cycles) typical | 10 000 000 |
| electrical endurance (operating cycles) at AC-15 at 230 V typical | 200 000 |
| Substance Prohibitance (Date) | 07/01/2006 |
| Net Weight | 0.05 kg |
| instantaneous contact | 20 |
| number of CO contacts of auxiliary contacts instantaneous contact | 0 |
| at 24 V | 10 A6 A |
| at 230 V | 10 A6 A |
| at 125 V | 6 A0.9 A |
| at 250 V | 6 A0.3 A |
| operational current of auxiliary contacts at AC-12 maximum | 10 A |
| at 400 V | 3 A |
| at 110 V | 3 A1 A |
| at 220 V | 1 A0.3 A |
| at 24 V rated value | 10 A |
| at 60 V rated value | 10 A3.5 A4.7 A |
| at 110 V rated value | 4 A10 A1.3 A3 A |
| at 220 V rated value | 2 A3.6 A0.9 A1.2 A |
| at 440 V rated value | 1.3 A2.5 A0.2 A0.5 A |
| at 48 V | 2 A |
| at 60 V | 2 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) |
| during operation | -25 ... +60 °C |
| during storage | -55 ... +80 °C |
| mirror contact according to IEC 60947-4-1 | Yes; with 3RT1 |
| positively driven operation according to IEC 60947-5-1 | No |
| design of the fuse link for short-circuit protection of the auxiliary switch required | gG: 10 A (500 V, 1 kA) |
| fastening method | snap-on mounting |
| height | 80 mm |
| width | 10 mm |
| depth | 71 mm |
| type of electrical connection for auxiliary and control circuit | screw-type terminals |
| solid or stranded | 0.5 ... 2.5 mm² |
| finely stranded with core end processing | 0.5 ... 2.5 mm² |
| — solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| — finely stranded with core end processing | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| 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 |
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