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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1336-1BB40 |
| Alternative Part Number | 3RT13361BB40 |
| Manufacturer | Siemens |
| Type | Power Contactor |
| Poles | 4 Pole |
| Contact Configuration | 4P-4NO |
| Control Voltage | 24 V DC |
| Operational Current AC-1 | 60 A |
| Operational Current AC-3 | 26 A at 400 V |
| Rated Control Supply Voltage | 24 V DC |
| Rated Operational Power AC-3 | 11 kW at 400 V |
| Rated Operational Power AC-1 | 39 kW at 400 V |
| Mechanical Operating Cycles | 10,000,000 typical |
| Insulation Voltage | Rated at 690 V |
| Degree of Pollution | 3 |
| Installation Altitude | Maximum 2,000 m above sea level |
| Ambient Temperature Range | Operating between -25 °C and +60 °C |
| Protection Class | IP00 on the front |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Dimensions (W x H x D) | 73 mm x 112 mm x 130 mm |
| Connectable Conductor Cross-Section | Main contacts: 2x (0.75 ... 16 mm²) solid/stranded, Auxiliary contacts: 2x (0.5 ... 4 mm²) solid |
| Shock Resistance | At DC 15g / 5 ms, 8g / 10 ms |
| Surge Voltage Resistance | Rated value 6 kV |
| Commodity Code | 853649 |
The Siemens 3RT1336-1BB40 is a robust power contactor designed to handle high current applications with ease. This 4-pole device is engineered for AC-1 operations, capable of managing loads up to 60 A at a control supply voltage of 24 V DC. It boasts a size S2 footprint and comes equipped with screw terminals for secure and reliable connections.
Crafted for efficiency and durability, the contactor offers a mechanical service life of approximately 10 million switching cycles, ensuring longevity and consistent performance in demanding industrial environments. The unit is suitable for a wide range of applications, including motor control, switching heating loads, and capacitor bank switching, making it a versatile choice for various electrical setups.
The contactor's design adheres to the highest standards of quality, with an insulation voltage rated at 690 V and a surge voltage resistance of 6 kV, providing additional safety and reliability. Its operational temperature range from -25 to +60 °C allows for deployment in diverse working conditions without compromising on performance.
With its compact dimensions and the ability to be mounted onto a standard 35 mm DIN rail, the Siemens 3RT1336-1BB40 offers a practical solution for space-constrained installations while maintaining easy access for maintenance and inspections. Its straightforward design ensures hassle-free integration into existing systems, making it a preferred choice for professionals seeking a high-quality power contactor.
Commonly Asked Questions
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Frequently Asked Questions
What are the main characteristics of this power contactor?
This power contactor is a 4-pole device with 4 normally open (NO) contacts, designed for AC-1 applications. It has a rated operating current of 60 A at 400 V in AC-1 applications and can handle a control supply voltage of 24 V DC. It's suitable for use in environments with an ambient temperature range of -25 to +60 °C.
Can this contactor be used in high-altitude installations?
Yes, this contactor can be installed at altitudes up to 2000 metres above sea level without derating.
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 size of this contactor and how can it be mounted?
The contactor is of size S2 and can be mounted by screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022. It has dimensions of 112 mm in height, 73 mm in width, and 130 mm in depth.
What type of terminals does this contactor have for electrical connections?
This contactor is equipped with screw-type terminals for both the main current circuit and the auxiliary and control current circuit, facilitating secure and reliable connections.
What is the insulation voltage rating of this contactor?
The insulation voltage rating of the contactor is 690 V, which is the rated value for ensuring safe operation.
What are the operating current ratings for this contactor in DC applications?
In DC applications, the contactor has an operating current rating of 50 A at 24 V for 1 current path at DC-1, and 45 A with 2 or 3 current paths in series at DC-1.
How does the ambient temperature affect the rated operating current of this contactor?
At an ambient temperature of 40 °C, the rated operating current is 60 A for AC-1 applications. However, at an ambient temperature of 60 °C, the rated operating current is reduced to 55 A.
What is the operating power rating of this contactor at different voltages?
The operating power rating at AC-1 is 39 kW at 400 V. For AC-3 applications, it is 11 kW at 400 V.
What type of short-circuit protection is required for this contactor?
For short-circuit protection of the main circuit with type of coordination 1, a fuse gL/gG of 160 A is required. For type of coordination 2, a fuse gL/gG of 63 A is necessary.
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