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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH2140-1JB40 |
| Alternative Part Number | 3RH21401JB40 |
| Manufacturer | Siemens |
| Product Type | Coupling contactor relay |
| Contact Configuration | 4 Normally Open (NO) contacts |
| Control Supply Voltage | 24 V DC |
| Operating Range Factor | 0.7 ... 1.25 times the rated value of magnet coil at DC |
| Integrated Suppression | With integrated diode |
| Size | S00 |
| Terminal Type | Screw terminal suitable for PLC outputs |
| Insulation Voltage | Rated at 690 V AC with degree of pollution 3 |
| Surge Voltage Resistance | Rated value 6 kV |
| Shock Resistance | At DC: 10g / 5 ms, 5g / 10 ms (rectangular impulse); 15g / 5 ms, 8g / 10 ms (sine pulse) |
| Mechanical Service Life | Typical 30 million operating cycles |
| Ambient Operating Temperature | -25 ... +60 °C during operation; -55 ... +80 °C during storage |
| No-load Switching Frequency | 10,000 operations per hour at AC and DC |
| Auxiliary Contacts | 4 instantaneous contacts |
| Operational Current at AC-15 | 10 A at 230 V; 3 A at 400 V; 2 A at 500 V; 1 A at 690 V |
| Operational Current at DC-12 | 10 A at 24 V; 3 A at 110 V; 1 A at 220 V |
| Mounting Position | +/-180° rotation possible on vertical mounting surface; can be tilted +/- 22.5° |
| Mounting Type | Screw and snap-on mounting onto 35 mm DIN rail |
| Dimensions (H x W x D) | 57.5 mm x 45 mm x 73 mm |
| Required Spacing | 10 mm forwards, upwards, downwards; 0 mm at the side for side-by-side mounting |
| Electrical Connection | Screw-type terminals for auxiliary and control current circuit |
| Conductor Cross-sections | For auxiliary contacts: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm² |
| Safety Related Data | Positively driven operation according to IEC 60947-5-1; B10 value: 1,000,000 with 0.3 x Ie |
| Protection Class | IP20 on the front according to IEC 60529 |
| Certificates/Approvals | General Product Approval, EMC, KC |
The Siemens 3RH2140-1JB40 is a coupling contactor relay designed to facilitate the switching of auxiliary circuits. This component is part of the SIRIUS product family, renowned for its reliability and versatility in various industrial applications. With a compact size S00 footprint, it is particularly suitable for integration into space-constrained environments.
This relay features four normally open (NO) contacts, making it ideal for operations that require multiple simultaneous connections. It operates with a control supply voltage of 24 V DC within an operating range factor of 0.7 to 1.25 times the rated value of the magnet coil at DC, ensuring stable performance even under fluctuating power conditions. The integrated diode within the unit provides surge suppression, safeguarding the relay from voltage spikes.
Constructed to withstand challenging industrial conditions, the 3RH2140-1JB40 can operate at installation altitudes up to 2000 meters above sea level and within a broad ambient temperature range of -25 to +60 degrees Celsius. Its mechanical service life is rated at an impressive 30 million operating cycles, indicating a long-lasting and durable design.
The relay's auxiliary contacts are rated for operational currents up to 10 A at AC-12 and can handle various operational currents at different voltage levels for both AC and DC applications. This flexibility makes it a suitable choice for a wide array of switching tasks in automation systems.
Installation and maintenance are straightforward, thanks to its screw and snap-on mounting options onto a standard 35 mm DIN rail. The relay's dimensions and required spacing are optimised for easy integration into existing setups without the need for extensive modifications.
Overall, the Siemens 3RH2140-1JB40 coupling contactor relay is a robust and reliable choice for those seeking a high-quality component for their automation and control needs. Its design and construction ensure it can meet the demands of a wide range of industrial applications.
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