| Item information | Value |
|---|---|
| Category: | SIRIUS 3RH2 contactor relays |
| Mounting position: | +/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface |
| Product designation: | Auxiliary contactor |
| Number of NC contacts for auxiliary contacts: | 1 |
| Number of NO contacts for auxiliary contacts: | 3 |
| Product type designation: | 3RH2 |
| Size of contactor: | S00 |
| Type of electrical connection for auxiliary and control circuit: | spring-loaded terminals, screw-type terminals |
| Control supply voltage at DC rated value: | 110 V, 12 V, 60 V, 125 V, 220 V, 230 V, 48 V, 24 V, 80 V |
| Type of voltage of the control supply voltage: | DC |
| Width: | 45 mm |
| Protection class IP on the front according to IEC 60529: | IP20 |
| Identification number and letter for switching elements: | 31 E |
Siemens contactor relay, 3 NO + 1 NC, frame, size S00
contactor relay, 3 NO + 1 NC, frame, size S00
Available variants
- Coil voltage: 12 V, 24 V, 60 V, 80 V, 110 V, 125 V, 220 V, 230 V, 48 V
- Control circuit connection: screw-type terminals, spring-loaded terminals
Technical data
Product data (5)
| Article number | 3RH2131-1BA40 |
| EAN | 4011209848764 |
| Product brand name | SIRIUS |
| Product designation | Auxiliary contactor |
| Product type designation | 3RH2 |
General technical data (12)
| Size of contactor | S00 |
| Product extension auxiliary switch | Yes |
| Power loss [W] for rated value of the current without load current share typical | 4 W |
| Insulation voltage with degree of pollution 3 at AC rated value | 690 V |
| Degree of pollution | 3 |
| Surge voltage resistance rated value | 6 kV |
| Shock resistance at rectangular impulse at DC | 10 g / 5 ms, 5 g / 10 ms |
| Shock resistance with sine pulse at DC | 15 g / 5 ms, 8 g / 10 ms |
| Mechanical service life (operating cycles) of contactor typical | 30 000 000 |
| Mechanical service life (operating cycles) of the contactor with added electronically optimized auxiliary switch block typical | 5 000 000 |
| Mechanical service life (operating cycles) of the contactor with added auxiliary switch block typical | 10 000 000 |
| Reference code according to IEC 81346-2 | K |
Ambient conditions (5)
| Installation altitude at height above sea level maximum | 2 000 m |
| Ambient temperature during operation | -25 ... +60 °C |
| Ambient temperature during storage | -55 ... +80 °C |
| Relative humidity minimum | 10 % |
| Relative humidity at 55 °C according to IEC 60068-2-30 maximum | 95 % |
Main circuit (2)
| No-load switching frequency at AC | 10 000 1/h |
| No-load switching frequency at DC | 10 000 1/h |
Control circuit/ Control (9)
| Type of voltage of the control supply voltage | DC |
| Control supply voltage at DC rated value | 12 V |
| Operating range factor control supply voltage rated value of magnet coil at DC initial value | 0.8 |
| Operating range factor control supply voltage rated value of magnet coil at DC full-scale value | 1.1 |
| Closing power of magnet coil at DC | 4 W |
| Holding power of magnet coil at DC | 4 W |
| Closing delay at DC | 30 ... 100 ms |
| Opening delay at DC | 7 ... 13 ms |
| Arcing time | 10 ... 15 ms |
Auxiliary circuit (49)
| Number of NC contacts for auxiliary contacts | 1 |
| Instantaneous contact | 1 |
| Number of NO contacts for auxiliary contacts | 3 |
| Instantaneous contact | 3 |
| Identification number and letter for switching elements | 31 E |
| Operational current at AC-12 maximum | 10 A |
| Operational current at AC-15 at 230 V rated value | 10 A |
| Operational current at AC-15 at 400 V rated value | 3 A |
| Operational current at AC-15 at 500 V rated value | 2 A |
| Operational current at AC-15 at 690 V rated value | 1 A |
| Operational current at 1 current path at DC-12 at 24 V rated value | 10 A |
| Operational current at 1 current path at DC-12 at 60 V rated value | 6 A |
| Operational current at 1 current path at DC-12 at 110 V rated value | 3 A |
| Operational current at 1 current path at DC-12 at 220 V rated value | 1 A |
| Operational current at 1 current path at DC-12 at 440 V rated value | 0.3 A |
| Operational current at 1 current path at DC-12 at 600 V rated value | 0.15 A |
| Operational current with 2 current paths in series at DC-12 at 24 V rated value | 10 A |
| Operational current with 2 current paths in series at DC-12 at 60 V rated value | 10 A |
| Operational current with 2 current paths in series at DC-12 at 110 V rated value | 4 A |
| Operational current with 2 current paths in series at DC-12 at 220 V rated value | 2 A |
| Operational current with 2 current paths in series at DC-12 at 440 V rated value | 1.3 A |
| Operational current with 2 current paths in series at DC-12 at 600 V rated value | 0.65 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 3 current paths in series at DC-12 at 600 V rated value | 1.8 A |
| Operating frequency at DC-12 maximum | 1 000 1/h |
| Operational current at 1 current path at DC-13 at 24 V rated value | 10 A |
| Operational current at 1 current path at DC-13 at 60 V rated value | 2 A |
| Operational current at 1 current path at DC-13 at 110 V rated value | 1 A |
| Operational current at 1 current path at DC-13 at 220 V rated value | 0.3 A |
| Operational current at 1 current path at DC-13 at 440 V rated value | 0.14 A |
| Operational current at 1 current path at DC-13 at 600 V rated value | 0.1 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 2 current paths in series at DC-13 at 600 V rated value | 0.1 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 with 3 current paths in series at DC-13 at 600 V rated value | 0.26 A |
| Operating frequency at DC-13 maximum | 1 000 1/h |
| Contact reliability of auxiliary contacts | 1 faulty switching per 100 million (17 V, 1 mA) |
UL/CSA ratings (1)
| Contact rating of auxiliary contacts according to UL | A600 / Q600 |
Short-circuit protection (2)
| 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 |
| Design of the fuse link for short-circuit protection of the auxiliary switch required | gG: 10 A (690 V, 1 kA) |
Installation/ mounting/ dimensions (17)
| Mounting position | +/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface |
| Fastening method | screw and snap-on mounting onto 35 mm DIN rail |
| Height | 57.5 mm |
| Width | 45 mm |
| Depth | 73 mm |
| With side-by-side mounting forwards | 10 mm |
| With side-by-side mounting upwards | 10 mm |
| With side-by-side mounting downwards | 10 mm |
| With side-by-side mounting at the side | 0 mm |
| For grounded parts forwards | 10 mm |
| For grounded parts upwards | 10 mm |
| For grounded parts at the side | 6 mm |
| For grounded parts downwards | 10 mm |
| For live parts forwards | 10 mm |
| For live parts upwards | 10 mm |
| For live parts downwards | 10 mm |
| For live parts at the side | 6 mm |
Connections/ Terminals (4)
| Type of electrical connection for auxiliary and control circuit | screw-type terminals |
| For auxiliary contacts solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm² |
| For auxiliary contacts finely stranded with core end processing | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| For auxiliary contacts for AWG cables for auxiliary contacts | 2x (20 ... 16), 2x (18 ... 14), 2x 12 |
Safety related data (13)
| Product function positively driven operation according to IEC 60947-5-1 | Yes |
| Product function suitable for safety function | Yes |
| Suitability for use safety-related switching OFF | Yes |
| Service life maximum | 20 a |
| Proportion of dangerous failures with low demand rate according to SN 31920 | 40 % |
| Proportion of dangerous failures with high demand rate according to SN 31920 | 73 % |
| B10 value with high demand rate according to SN 31920 | 1 000 000; With 0.3 x Ie |
| Failure rate [FIT] with low demand rate according to SN 31920 | 100 FIT |
| Device type according to ISO 13849-1 | 3 |
| Overdimensioning according to ISO 13849-2 necessary | Yes |
| Safety device type according to IEC 61508-2 | Type A |
| Protection class IP on the front according to IEC 60529 | IP20 |
| Touch protection on the front according to IEC 60529 | finger-safe, for vertical contact from the front |
Shipping & customs (3)
| Weight | 0,279 kg |
| Customs tariff number | 85364190 |
| Country of origin | Germany |
Product benefits
- Proven SIRIUS 3RT range from Siemens – available worldwide and maintained over decades
- Consistent modular system: auxiliary switches, surge suppressors and link modules fit across sizes
- Screw or spring-loaded terminals – spring-loaded saves assembly time and is vibration-proof
- Versions with electronic operating mechanism reduce holding power and work over a wide voltage range
- Approvals to IEC and UL/CSA, so the same plant can be operated in Europe and North America
Your advantages when buying from us
- Worldwide shipping of all switching and control devices
- Large stock levels for many products – just ask us for current delivery times
- Accessories, spare parts and matching modules are available as well
- Fast delivery from stock by UPS (parcel) or DSV (pallet), express shipping on request
- Extensive application know-how from many years of practice
- Personal advice on choosing the right component
- Dealers receive volume-based trade discounts on request – talk to us directly
- Large companies, authorities and public bodies can order on account – please enquire via our contact form
Siemens
Manufacturer according to GPSR
Siemens
