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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT2024-1BB40 |
| Alternative Part Number | 3RT20241BB40 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Contactor Size | S0 |
| Number of Poles | 3 Pole |
| Operating Voltage (AC-3) | 400 V ac |
| Operating Current (AC-3) | 12 A |
| Auxiliary Contacts | 1 Normally Open (NO) + 1 Normally Closed (NC) |
| Coil Voltage | DC 24V |
| Terminal Type | Screw Terminal |
| Protection Class IP | IP20 |
| Degree of Pollution | 3 |
| Installation Altitude Maximum | 2,000 m above sea level |
| Ambient Temperature Range | -25 … +60 °C during operation |
| Storage Temperature Range | -55 … +80 °C |
| Shock Resistance | 10g / 5 ms, 7.5g / 10 ms at DC |
| Impulse Voltage Resistance | 6 kV |
| Insulation Voltage | 690 V |
| Mechanical Operating Cycles | Typically 10,000,000 |
| Product Approvals | General Product Approval, EMC, KC, Functional Safety/Safety of Machinery, Declaration of Conformity |
| Special Features | Mirror contact to IEC 60947-4-1 |
The Siemens 3RT2024-1BB40 is a robust power contactor designed to handle a variety of applications within industrial environments. This three-pole contactor is engineered to control motors and is capable of switching power circuits up to 5.5 kW at 400 V AC in an AC-3 utilisation category. It features a DC 24V control voltage and includes both one normally open (NO) and one normally closed (NC) auxiliary contact, providing flexibility for interfacing with different control circuits.
Constructed with a size S0 frame, the 3RT2024-1BB40 is compact and suitable for space-saving installations. It offers a finger-safe IP20 protection class for the front side, ensuring a safer operation for personnel. The contactor is designed to withstand challenging conditions, with an operational temperature range from -25°C to +60°C and storage temperatures from -55°C to +80°C, making it a reliable choice for a wide range of climates.
The mechanical operating life of this contactor is impressive, with typical mechanical operating cycles reaching up to 10 million, signifying its durability and longevity in repetitive applications. Its shock resistance and impulse voltage resistance are in line with industry standards, ensuring it can handle the rigours of industrial use.
For those in the engineering and manufacturing sectors looking for a dependable solution for controlling motors and power circuits, the Siemens 3RT2024-1BB40 offers a combination of performance, reliability, and safety. Its technical specifications meet the demands of various applications, making it a versatile component for your industrial control systems.
Commonly Asked Questions
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Frequently Asked Questions
What type of contactor is this?
This is a power contactor designed for switching electric motors and other loads. It's a 3-pole contactor with a control voltage of DC 24V, suitable for AC-3 applications up to 5.5 kW at 400 V.
Can this contactor be used for heavy industrial applications?
Yes, the contactor is suitable for industrial applications and is designed to handle typical motor control tasks in environments such as manufacturing plants, processing facilities, and other demanding industrial settings.
What is the rated operational current for this contactor?
The rated operational current for this contactor in AC-3 usage is 12 A at 400 V ac.
Does this contactor come with auxiliary contacts?
Yes, it comes equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact.
What is the size of this contactor?
The contactor is of size S0, which is a standard size within the contactor product range, making it compatible with various installations.
What is the protection class of this contactor?
The protection class for the front of this contactor is IP20, indicating a basic level of protection against solid objects.
What is the insulation voltage rating for this contactor?
The insulation voltage rating for this contactor is 690 V.
Is this contactor suitable for use at different altitudes?
Yes, it can be installed at altitudes up to 2,000 meters above sea level without derating.
What is the ambient temperature range for operating this contactor?
The contactor can operate within an ambient temperature range of -25 °C to +60 °C.
How does this contactor ensure safety during operation?
The contactor is designed with finger-safe terminals to provide protection against electrical shock, contributing to safer operation and maintenance.
Part conditions explained
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