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3SE2924-3AA20
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3SE2924-3AA20 |
| Alternative Part Number | 3SE29243AA20 |
| Manufacturer | Siemens |
| Product Type | Safety momentary-contact foot switch |
| Actuation Pedals | 1 pedal |
| Protective Cover | Included |
| Interlock Function | Yes |
| Contacts Configuration | 2 Normally Open (NO) / 2 Normally Closed (NC) |
| Operating Voltage | 230 V AC |
| Operating Current at AC-15 | 16 A at 230 V / 16 A at 400 V |
| Operating Current at DC-13 | 3 A at 24 V / 0.25 A at 250 V |
| Enclosure Material | Metal |
| Enclosure Colour | Black with grey top part |
| Protection Class | IP65 |
| Ambient Operating Temperature | -25 °C to +80 °C |
| Cable Entry Type | M20 x 1.5 |
| Mounting Type | Screw fixing |
| Dimensions (H x W x D) | 138 mm x 156 mm x 265 mm (height may vary in different documents, please verify before use) |
| Safety Related Data | B10 value: 100,000 with high demand rate according to SN 31920 |
| Failure Rate | 100 FIT with low demand rate according to SN 31920 |
| T1 Value for Proof Test Interval | 20 years according to IEC 61508 |
| Commodity Code | 85365080 |
The Siemens 3SE2924-3AA20 is a robust safety momentary-contact foot switch designed to offer reliable control in industrial environments. This single-pedal switch comes with a protective cover and boasts an IP65 rating, ensuring it is well-protected against dust ingress and low-pressure water jets from any direction. It features an interlock function to enhance operational safety, along with 2 normally open (NO) and 2 normally closed (NC) contacts, providing flexibility in control circuit design.
The switch is engineered to handle operating currents of up to 16 A at 230 V or 400 V in AC-15 applications, and it can also manage DC-13 operations with a rated value of 3 A at 24 V and 0.25 A at 250 V. The enclosure is made of durable metal with a black base and a grey top part, ensuring it can withstand the rigours of industrial use.
With a minimum actuating force of 240 N, the switch is responsive yet requires sufficient pressure to prevent accidental activation. The product is suitable for use as a safety switch and has been designed to meet rigorous safety standards, with a B10 value of 100,000 at a high demand rate according to SN 31920. The failure rate is specified at 100 FIT with a low demand rate, and it has a T1 value for proof test interval or service life according to IEC 61508 of 20 years.
The dimensions of the switch are compact, facilitating easy installation and integration into various systems without requiring excessive space. The cable entry type is M20 x 1.5, which is a standard size for industrial cable glands, ensuring straightforward wiring.
Overall, the Siemens 3SE2924-3AA20 is a reliable and durable choice for those seeking a safety foot switch that combines functionality with a high degree of protection against environmental factors.
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Frequently Asked Questions
What type of foot switch is this?
This is a safety momentary-contact foot switch designed for industrial applications. It features a single pedal with a protective cover and an interlock function, providing both normally open (NO) and normally closed (NC) contacts.
Can this foot switch be used in outdoor environments?
Yes, the foot switch is rated IP65, which means it is protected against dust ingress and low-pressure water jets from any direction, making it suitable for certain outdoor conditions.
What is the maximum operating temperature for this foot switch?
The foot switch can operate in ambient temperatures ranging from -25°C to +80°C, making it suitable for a wide range of environmental conditions.
What are the dimensions of this foot switch?
The foot switch has a height of 138 mm, a width of 156 mm, and a depth of 265 mm.
What is the actuating force required for this foot switch?
The minimum actuating force required to activate the foot switch in the direction of operation is 240 N.
What is the electrical rating for AC and DC currents?
For AC-15, the foot switch is rated at 16 A for both 230 V and 400 V. For DC-13, it is rated at 3 A for 24 V and 0.25 A for 250 V.
What type of cable entry does this foot switch have?
The foot switch is equipped with a cable entry of type M20 x 1.5.
Does this foot switch have a latching function?
Yes, the foot switch includes a latching function that allows the NC contact to open with simultaneous latching for safety purposes.
What is the B10 value for this foot switch?
The B10 value, which indicates the number of operating cycles before a failure can be expected, is 100,000 at a high demand rate according to SN 31920.
How is the foot switch mounted?
The foot switch is designed for screw fixing, allowing for secure mounting in various industrial settings.
