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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1035-1BB44 |
| Alternative Part Number | 3RT10351BB44 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Contactor Size | S2 |
| Pole Configuration | 3 Pole |
| Operational Current (AC-3) | 40 A at 400 V AC |
| Operational Current (AC-1) | 60 A at 400 V AC (at 40 °C ambient temperature), 55 A at 60 °C ambient temperature |
| Control Voltage | 24 V DC |
| Auxiliary Contacts | 2 Normally Open (NO) + 2 Normally Closed (NC) |
| Connection Type | Screw Connection |
| Insulation Voltage | Rated at 690 V |
| Degree of Pollution | 3 |
| Installation Altitude | Maximum 2,000 m above sea level |
| Ambient Operating Temperature | -25 … +60 °C |
| Mechanical Operating Cycles | 10,000,000 for contactor, 5,000,000 for contactor with electronics-compatible auxiliary block |
| Protection Class IP | IP20 on the front |
| Surge Voltage Resistance | Rated value 6 kV |
| Commodity Code | 85364900 |
The Siemens 3RT1035-1BB44 is a robust power contactor designed to handle a variety of applications within industrial environments. This three-pole contactor is rated for AC-3 40 A and can manage motor power of up to 18.5 kW at 400 V ac, making it suitable for a wide range of motor control tasks. It operates with a 24 V DC control circuit and features a screw connection for secure and reliable installation.
Constructed with durability in mind, the 3RT1035-1BB44 boasts an impressive mechanical operating life, capable of up to 10 million cycles, ensuring long-term performance and reliability. The contactor is part of the SIRIUS product family, which is known for its high-quality standards and compatibility with a wide range of control systems.
The device is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing flexibility for complex control circuits. With an insulation voltage rated at 690 V and a surge voltage resistance of 6 kV, it is designed to withstand challenging electrical environments.
The contactor's compact size S2 form factor makes it an excellent choice for space-constrained applications, while its IP20 protection class rating on the front ensures protection against solid objects. It is designed to operate reliably in a broad range of ambient temperatures, from -25 to +60 degrees Celsius, and at installation altitudes of up to 2000 metres above sea level, catering to various industrial settings.
The Siemens 3RT1035-1BB44 is a testament to Siemens' commitment to quality, offering a dependable solution for controlling motors and loads efficiently and effectively in industrial applications.
Commonly Asked Questions
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Frequently Asked Questions
What are the main characteristics of this power contactor?
This power contactor is a 3-pole device with a control voltage of 24 V DC. It's designed for AC-3 applications up to 40 A and 400 V, with an operational power rating of 18.5 kW. It also features 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts and has a screw connection terminal.
Can this contactor be used in high-altitude installations?
Yes, the contactor can be used at altitudes up to 2000 metres above sea level without derating.
What is the insulation voltage rating for this contactor?
The insulation voltage rating for this contactor is 690 V, which is the rated value for ensuring safe operation.
What is the mechanical service life of this contactor?
The mechanical service life of the contactor is typically 10 million operating cycles, ensuring long-term reliability in your applications.
What is the degree of protection provided by the contactor?
The contactor provides a protection class of IP20 on the front, ensuring protection against solid objects larger than 12mm but not against water.
What are the ambient temperature limits for operating this contactor?
The contactor can operate within an ambient temperature range of -25 to +60 degrees Celsius.
How does the contactor handle shock and vibration?
The contactor is designed to withstand shock resistance with a sine pulse of 15g / 5 ms and 8g / 10 ms at DC, which helps ensure stability in environments with vibration or shock.
What is the size classification of this contactor?
This contactor is classified as Size S2, which is a standard size classification for Siemens contactors, indicating its physical dimensions and compatibility with other components.
Is the contactor suitable for use in controlling motors?
Absolutely, the contactor is specifically designed for motor control applications, with an AC-3 rating suitable for starting and stopping motors.
What type of connections does the contactor have for wiring?
The contactor is equipped with screw connection terminals, which provide a secure and reliable means of connecting wires.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
