SIEMENS
Siemens Contactor Relay is a high-performance auxiliary contactor from the SIRIUS line, designed for reliable switching operations in industrial control systems. This model features 4 Normally Open (NO) contacts, a 230 V AC operating coil, and utilizes quick, vibration-proof spring-loaded terminals. Its compact Frame Size S00 ensures efficient use of space in your control cabinet.
Backorder available · Factory lead time 2–3 weeks.
The Siemens 3RH2140-2AP00 contactor relay is a high-performance control component engineered for modern automation systems. Designed with four normally open (4NO) contacts, a 230V AC coil, and spring-loaded terminals, this device ensures maximum reliability, fast wiring, and long service life. Its compact S00 frame size makes it ideal for space-restricted control panels and industrial environments that demand durability and consistent switching performance.
Reliable Switching Performance
With 4 NO contacts, the relay provides dependable and precise control for auxiliary and signaling circuits.
230V AC Coil for Universal Use
Compatible with a wide range of industrial power systems, ensuring seamless integration into existing equipment.
Spring-Loaded Terminal Design
Enables quick, secure, and vibration-resistant wiring—reducing installation time and maintenance efforts.
Compact S00 Frame Size
Space-saving design suited for tight control panels without compromising performance.
Siemens Quality Assurance
Manufactured to Siemens’ high-quality standards, ensuring long operational life, stability, and safety.
Ideal for Industrial Automation
Suitable for motor control centers, machinery, conveyors, and industrial control circuits.
Auxiliary switching and signaling
Control circuit expansion
Interlocking functions
Interface relay operation
Safe and stable contact switching under industrial load conditions
Model: Siemens 3RH2140-2AP00
Contact Configuration: 4 NO
Rated Coil Voltage: 230 V AC (50/60 Hz)
Terminal Type: Spring-loaded
Frame Size: S00
Application: Industrial control, automation systems, auxiliary circuits
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| SKU / Model | 3RH2140-2AP00 |
|---|---|
| Brand | SIEMENS |
| product brand name | SIRIUS |
| product designation | Auxiliary contactor |
| product type designation | 3RH2 |
| size of contactor | S00 |
| product extension auxiliary switch | Yes |
| 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 | - |
| shock resistance with sine pulse | - |
| mechanical service life (switching cycles) | - |
| ● of contactor typical | 30 000 000 |
| ● of the contactor with added electronically optimized auxiliary switch block typical | 5 000 000 |
| ● of the contactor with added auxiliary switch block typical | 10 000 000 |
| reference code acc. to IEC 81346-2 | K |
| installation altitude at height above sea level maximum | 2 000 m |
| ambient temperature | - |
| ● during operation | -25 ... +60 °C |
| ● during storage | -55 ... +80 °C |
| relative humidity minimum | 10 % |
| relative humidity at 55 °C acc. to IEC 60068-2-30 maximum | 95 % |
| no-load switching frequency | - |
| ● at DC | 10 000 1/h |
| type of voltage of the control supply voltage | AC |
| control supply voltage at AC | - |
| ● at 50 Hz rated value | 230 V |
| ● at 60 Hz rated value | 230 V |
| control supply voltage frequency | - |
| ● 1 rated value | 50 Hz |
| ● 2 rated value | 60 Hz |
| operating range factor control supply voltage rated value of magnet coil at AC | - |
| ● at 50 Hz | 0.8 ... 1.1 |
| ● at 60 Hz | 0.85 ... 1.1 |
| apparent pick-up power of magnet coil at AC | 37 V·A |
| inductive power factor with closing power of the coil | 0.8 |
| apparent holding power of magnet coil at AC | 5.7 V·A |
| inductive power factor with the holding power of the coil | 0.25 |
| closing delay | - |
| opening delay | - |
| ● at AC | 4 ... 15 ms |
| arcing time | 10 ... 15 ms |
| number of NO contacts for auxiliary contacts | 4 |
| ● instantaneous contact | 4 |
| identification number and letter for switching elements | 40 E |
| operational current at AC-12 maximum | 10 A |
| operational current at AC-15 | - |
| ● at 230 V rated value | 10 A |
| ● at 400 V rated value | 3 A |
| ● at 500 V rated value | 2 A |
| ● at 690 V rated value | 1 A |
| operational current at 1 current path at DC-12 | - |
| operational current with 2 current paths in series at DC-12 | - |
| operational current with 3 current paths in series at DC-12 | - |
| operating frequency at DC-12 maximum | 1 000 1/h |
| operational current at 1 current path at DC-13 | - |
| operational current with 2 current paths in series at DC-13 | - |
| operational current with 3 current paths in series at DC-13 | - |
| ● at 24 V rated value | 10 A |
| ● at 60 V rated value | 4.7 A |
| ● at 110 V rated value | 3 A |
| ● at 220 V rated value | 1.2 A |
| ● at 440 V rated value | 0.5 A |
| ● at 600 V rated value | 0.26 A |
| operating frequency at DC-13 maximum | 1 000 1/h |
| design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V | C characteristic: 6 A; 0.4 kA |
| contact reliability of auxiliary contacts | 1 faulty switching per 100 million (17 V, 1 mA) |
| contact rating of auxiliary contacts according to UL | A600 / Q600 |
| design of the fuse link for short-circuit protection of the auxiliary switch required | fuse gL/gG: 10 A |
| mounting position | standing, on horizontal mounting surface |
| fastening method | screw and snap-on mounting onto 35 mm standard mounting rail |
| required spacing | - |
| ● with side-by-side mounting | - |
| ● for grounded parts | - |
| ● for live parts | - |
| — forwards | 10 mm |
| — upwards | 10 mm |
| — downwards | 10 mm |
| — at the side | 6 mm |
| type of electrical connection for auxiliary and control circuit | spring-loaded terminals |
| type of connectable conductor cross-sections | - |
| ● for auxiliary contacts | - |
| — solid or stranded | 2x (0,5 ... 4 mm²) |
| — finely stranded with core end processing | 2x (0.5 ... 2.5 mm²) |
| — finely stranded without core end processing | 2x (0.5 ... 2.5 mm²) |
| ● at AWG cables for auxiliary contacts | 2x (20 ... 12) |
| B10 value with high demand rate acc. to SN 31920 | 1 000 000; With 0.3 x Ie |
| proportion of dangerous failures | - |
| ● with low demand rate acc. to SN 31920 | 40 % |
| ● with high demand rate acc. to SN 31920 | 73 % |
| failure rate [FIT] with low demand rate acc. to SN 31920 | 100 FIT |
| T1 value for proof test interval or service life acc. to IEC 61508 | 20 y |
| protection class IP on the front acc. to IEC 60529 | IP20 |
| touch protection on the front acc. to IEC 60529 | finger-safe, for vertical contact from the front |
| last modified: | 11/10/2021 |
| Weight | 0.255 kg |
| Dimensions | 50.00 × 73.50 × 77.50 mm |
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