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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3TK2830-1AJ20 |
| Alternative Part Number | 3TK28301AJ20 |
| Manufacturer | Siemens |
| Series | 3TK28 |
| Product Type | Safety Relay |
| Supply Voltage | 115 V ac |
| Number of Channels | 1 Channel |
| Output Configuration | 4 Normally Open (NO) |
| Dimensions | 22.5 x 120 x 120 mm |
| Mounting Type | Screw and snap-on mounting |
| Terminal Type | Screw-type terminals |
| Insulation Voltage | Rated at 300 V |
| Ambient Operating Temperature Range | -25 to +60 °C |
| Installation Altitude | Up to 2,000 metres above sea level |
| Protection Class | IP40 for enclosure, IP20 for terminal |
| Safety Integrity Level (SIL) | SIL3 according to IEC 61508 |
| Performance Level (PL) | e according to EN ISO 13849-1 |
| Category | Corresponds to basic unit, Category 4 according to EN ISO 13849-1 |
| Hardware Fault Tolerance | 1 according to IEC 61508 |
| Safety Device Type | Type A according to IEC 61508-2 |
| PFHD (Probability of Dangerous Failure per Hour) | 0.12E-8 1/h |
| PFDavg (Average Probability of Failure on Demand) | 0.1E-5 1/y |
| T1 Value | 20 years for proof test interval or service life |
| EMC | Suitable for Class A environments only |
| Certifications | TÜV, UL, CSA, EN 60204-1, EN ISO 12100, EN 954-1, IEC 61508 |
The Siemens 3TK2830-1AJ20 is a high-quality safety relay from the renowned 3TK28 series, designed to ensure the safe operation of machinery and industrial processes. This particular model operates with a control supply voltage of 115 V ac and is engineered for applications requiring a single channel with four normally open (NO) contacts. Its compact dimensions of 22.5 x 120 x 120 mm make it suitable for installations where space is at a premium.
Crafted for reliability and durability, the 3TK2830-1AJ20 boasts a robust design with an enclosure protection rating of IP40 and terminal protection of IP20, ensuring it is safeguarded against particulate ingress. The safety relay is finger-safe, providing additional protection during installation and maintenance.
This safety relay is an extension unit that can be easily integrated into existing safety systems. It is equipped with a feedback input but does not support features such as light barrier monitoring, standstill monitoring, or emergency stop functions, focusing instead on its core role of reliable safety contact extension.
The 3TK2830-1AJ20 is characterised by its compliance with key industry standards, including EN 60947-5-1 for EMC emitted interference, and it is suitable for Class A environments. It also meets the requirements for Safety Integrity Level 3 (SIL3) according to IEC 61508, Performance Level e (PL e) according to EN ISO 13849-1, and Category 4 according to EN ISO 13849-1, reflecting its capability to handle high-risk safety functions.
With its combination of compact design, compliance with safety standards, and reliable performance, the Siemens 3TK2830-1AJ20 safety relay is an essential component for those seeking to maintain high levels of safety in industrial environments.
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Frequently Asked Questions
What is the voltage rating for this safety relay?
The safety relay is rated for a control supply voltage of 115 V ac.
Can this safety relay be used in residential environments?
This product is suitable for Class A environments only and may cause undesired radio-frequency interference in residential environments. Appropriate measures must be taken if used in such environments.
What are the dimensions of this safety relay?
The dimensions of the safety relay are 22.5 x 120 x 120 mm.
What is the maximum operating frequency of this relay?
The maximum operating frequency of the relay is 1,000 operations per hour.
What is the insulation voltage of this safety relay?
The insulation voltage rated value for this safety relay is 300 V.
What is the ambient temperature range for operating this relay?
The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius.
What is the product's resistance to vibration and shock?
The product is resistant to vibration according to IEC 60068-2-6 standards and can withstand shock resistance of 8g / 10 ms.
What is the Safety Integrity Level (SIL) of this relay?
The Safety Integrity Level (SIL) of the relay is SIL3 according to IEC 61508.
How many safety-related NO contacts does this relay have?
The 3TK2830-1AJ20 safety relay has 4 safety-related NO (Normally Open) contacts for instantaneous switching.
Is this safety relay suitable for emergency stop function?
No, this safety relay does not have an emergency stop function.
