3RH1921-1FE11 PNEUMATIC TIME-BLOCK RELAY
From SIEMENS
| Auxiliary switch solid- state-compatible for attaching on contactor relay 3RT1 in size S0 ! Phased-out product! Successor is SIRIUS 3RH2 | ||
| General technical data | ||
| Product brand name | SIRIUS | |
| Suitability for use | Contactor relay and power contactor | |
| Protection class IP on the front | IP20 | |
| Ambient temperature | ||
| during storage | -55 ... +80 °C | |
| during operation | -25 ... +60 °C | |
| Mechanical service life (switching cycles) typical | 5 000 000 | |
| Contact reliability | one incorrect switching operation of 100 million switching operations (17 V, 5 mA) | |
| Contact reliability of auxiliary contacts | 1 faulty switching per 100 million (17 V, 1 mA) | |
| Insulation voltage with degree of pollution 3 rated value | 690 V | |
| Surge voltage resistance rated value | 6 kV | |
| Auxiliary circuit | ||
| Number of NC contacts for auxiliary contacts | ||
| instantaneous contact | 1 | |
| Number of NO contacts for auxiliary contacts | ||
| instantaneous contact | 1 | |
| Operating current | ||
| of auxiliary contacts at DC-13 | ||
| — at 24 V | 0.3 A | |
| — at 60 V | 0.3 A | |
| Installation/ mounting/ dimensions | ||
| Mounting type | snap-on mounting | |
| Width | 44 mm | |
| Height | 38 mm | |
| Depth | 51 mm | |
| Connections/Terminals | ||
| Type of electrical connection for auxiliary and control current circuit | screw-type terminals | |
| 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) | |
| at AWG conductors for auxiliary contacts | 2x (20 ... 16), 2x (18 ... 14) | |
| Safety related data | ||
| Product function Mirror contact acc. to IEC 60947-4-1 | Yes | |
| Note | with 3RT1 | |
| Product function positively driven operation acc. to IEC 60947-5-1 | No | |
