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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RA2815-1FW10 |
| Alternative Part Number | 3RA28151FW10 |
| Manufacturer | Siemens |
| Series | SIRIUS |
| Type | Control Relay |
| Voltage Range | 24 to 240 V ac/dc |
| Current Rating | 3 A |
| Configuration | DP (Double Pole) |
| Contacts | 1 W (1 NC + 1 NO) |
| Dimensions | 45 x 88.9 x 37.1 mm |
| Mounting | For snapping onto the front of 3RT2 contactors |
| Terminal Type | Screw terminals |
| Additional Features | Integrated varistor for damping contactor coils |
| Time Range | 0.05 to 100 seconds |
| Ambient Operating Temperature | -25 to +60 °C during operation |
| Storage Temperature | -40 to +85 °C |
| Insulation Voltage | Rated at 300 V with degree of pollution 3 |
| Installation Altitude | Maximum 2000 m above sea level |
| Protection Class | IP20 for front and terminals |
| Degree of Pollution | 3 |
| EMC | Immunity to interference and emitted interference according to IEC 60947-1, CISPR11 |
| Conductor-bound Parasitic Coupling | BURST according to IEC 61000-4-4: 2 kV network connection / 1 kV control connection |
| Approvals | General Product Approval, Declaration of Conformity |
The Siemens 3RA2815-1FW10 is a state-of-the-art solid-state relay designed for time-delayed switching applications. This auxiliary switch is part of the SIRIUS series and is engineered to offer reliable performance in a compact form factor, measuring just 45 x 88.9 x 37.1 mm. It is suitable for a wide range of industrial control systems.
This control relay is versatile, with an operating voltage range of 24 to 240 V ac/dc, and can handle a current up to 3 A. It features a dual-pole (DP) configuration with one normally closed (NC) and one normally open (NO) contact, providing flexibility for various circuit designs. The time-delay function can be set within a range of 0.05 to 100 seconds, allowing for precise control over the timing of switching events.
The 3RA2815-1FW10 is designed for easy installation and can be snapped onto the front of 3RT2 contactors, making it a convenient addition to existing setups. It comes with screw terminals for secure and straightforward wiring. Additionally, the integrated varistor ensures damping of contactor coils, enhancing the longevity and reliability of the device.
Crafted with industrial-grade materials, this control relay is built to withstand challenging environments and is rated for an insulation voltage of 300 V with a degree of pollution 3, ensuring robust performance even in demanding industrial settings. The product is also designed to meet the IP20 protection class for both the front and terminal, safeguarding against the ingress of solid objects.
The Siemens 3RA2815-1FW10 is a superb choice for professionals seeking a reliable and efficient solution for time-delayed control in their automation systems.
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Frequently Asked Questions
What is the voltage range for the control relay?
The control relay operates within a control supply voltage range of 24 to 240 V ac/dc.
Can this relay be mounted onto a contactor?
Yes, the relay is designed for snapping onto the front of 3RT2 contactors, facilitating easy and secure mounting.
What are the dimensions of this solid-state relay?
The dimensions of the relay are 45 mm in width, 88.9 mm in height, and 37.1 mm in depth.
What is the time delay range that can be set on this relay?
The time delay range that can be set on this relay is from 0.05 to 100 seconds.
What type of terminals does this relay have for electrical connection?
This relay is equipped with screw-type terminals for auxiliary and control current circuits.
What is the operating current rating for the auxiliary contacts?
The operating current for the auxiliary contacts is rated at 3 A for AC-15 at 250 V and varies for DC-13 at different voltages.
What is the function of the integrated varistor in this relay?
The integrated varistor is included for damping contactor coils, providing surge suppression.
What is the insulation voltage rating for this relay?
The insulation voltage rating for this relay, with a degree of pollution 3, is 300 V.
What are the ambient temperature ranges for operation and storage of this relay?
The ambient temperature range for operation is -25 to +60 °C, and for storage, it is -40 to +85 °C.
Does this relay have any certifications or approvals?
Yes, the relay has general product approvals and is verified for suitability with CE, UL, and CSA standards.
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