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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH2122-1FB40 |
| Alternative Part Number | 3RH21221FB40 |
| Manufacturer | Siemens |
| Product Type | Contactor Relay |
| Size | S00 |
| Contact Configuration | 2 Normally Open (NO) + 2 Normally Closed (NC) |
| Control Supply Voltage | DC 24V |
| Integrated Diode | Yes, with integrated diode |
| Terminal Type | Screw Terminal |
| Insulation Voltage | Rated at 690 V with degree of pollution 3 |
| Surge Voltage Resistance | Rated value 6 kV |
| Protection Class | IP20 on the front |
| Shock Resistance | At DC 10g / 5 ms, 5g / 10 ms for rectangular impulse; 15g / 5 ms, 8g / 10 ms for sine pulse |
| Mechanical Service Life | Typical 30,000,000 switching cycles |
| Ambient Operating Temperature | -25 ... +60 °C during operation |
| Storage Temperature | -55 ... +80 °C during storage |
| No-load Switching Frequency | 10,000 1/h at AC and DC |
| Operating Current at AC-12 | Maximum 10 A |
| Operating Current at AC-15 | 10 A at 230 V, 3 A at 400 V, 2 A at 500 V rated value |
| Identification Number | 22 E |
| Product Designation | Contactor relay |
| Equipment Marking | According to DIN EN 61346-2 and DIN EN 81346-2 as 'K' |
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Frequently Asked Questions
What is the size of the contactor for this relay?
The contactor relay is of size S00, which is a compact size suitable for various applications.
Can this contactor relay be used with auxiliary switches?
Yes, this contactor relay is designed to be used with auxiliary switches, enhancing its functionality for different control and signalling tasks.
What is the insulation voltage rating for this device?
The insulation voltage rating for this device, with a degree of pollution 3, is rated at 690 volts.
What level of shock resistance does this contactor relay have?
This contactor relay has a shock resistance of 10g / 5 ms and 5g / 10 ms for a rectangular impulse at DC, and 15g / 5 ms and 8g / 10 ms for a sine pulse at DC.
What is the mechanical service life of this contactor relay?
The mechanical service life of this contactor relay is typically around 30 million switching cycles, indicating its durability and reliability.
What type of terminal connection does this contactor relay have?
This contactor relay is equipped with screw terminals, which provide a secure and reliable connection for wiring.
What is the protection class on the front of this contactor relay?
The protection class on the front of this contactor relay is IP20, offering protection against solid objects larger than 12.5 mm but not against liquids.
Does this contactor relay include a diode?
Yes, this contactor relay comes with an integrated diode, which can be useful for applications requiring diode protection.
What is the surge voltage resistance of this contactor relay?
The surge voltage resistance of this contactor relay is rated at 6 kV, providing robust protection against voltage spikes.
What are the typical applications for this contactor relay?
Typical applications for this contactor relay include use in control panels, automation systems, and various industrial control applications where switching of auxiliary and control circuits is required.
