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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1055-2AP36 |
| Alternative Part Number | 3RT10552AP36 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Poles | 3 Pole |
| Contact Configuration | 3NO (3 Normally Open) |
| Rated Operational Current | 150 A |
| Power Rating at 400 V ac/dc | 75 kW |
| Control Voltage | 220 to 240 V ac/dc |
| Size | S6 |
| Mounting Type | Screw fixing |
| Side-by-Side Mounting | Yes |
| Dimensions (H x W x D) | 172 mm x 120 mm x 170 mm |
| Required Spacing | Forwards: 20 mm, Upwards/Downwards: 10 mm, At the side: 0 mm for grounded parts, 10 mm for live parts |
| Connection Bar Width | 17 mm |
| Connection Bar Thickness | 3 mm |
| Hole Diameter | 9 mm |
| Number of Holes | 1 |
| Electrical Connection | Connection bar for main circuit, spring-loaded terminals for auxiliary and control current circuit |
| Conductor Cross-Section | Main contacts: 25…120 mm², Auxiliary contacts: 0.25…2.5 mm² |
| Ambient Operating Temperature | -25…+60 °C |
| Mechanical Operating Cycles | 10,000,000 typical |
| Protection Class | IP00; IP20 with box terminal/cover |
| Commodity Code | 853649 |
The Siemens 3RT1055-2AP36 is a robust power contactor designed to handle high current applications with ease. This three-pole contactor is equipped with three normally open (NO) contacts and is capable of managing a substantial 150 A operating current at AC-3, making it suitable for controlling motors up to 75 kW at 400 V AC/DC. It operates with a control voltage range of 220 to 240 V AC/DC, providing flexibility for various industrial power systems.
Crafted for durability, the 3RT1055-2AP36 boasts an impressive mechanical service life, offering up to 10 million switching cycles. This ensures long-term reliability and reduced maintenance needs for users. The contactor's size S6 frame allows for efficient use of space within electrical cabinets, while its bar connection design facilitates straightforward installation.
The contactor is designed with safety in mind, featuring a protection class of IP00 for the front and IP20 when equipped with a cover or box terminal. It also has a high shock resistance, ensuring stable operation even in demanding environments.
With its spring-loaded terminals for auxiliary and control current circuits, the 3RT1055-2AP36 ensures secure and reliable connections. Its compatibility with various conductor cross-sections adds to its installation versatility, making it a preferred choice for professionals seeking a high-performance contactor for industrial applications.
Commonly Asked Questions
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Frequently Asked Questions
What type of contactor is this?
This is a power contactor designed for switching an electrical power circuit, similar to a relay but with higher current ratings. It's suitable for heavy-duty applications such as starting motors.
Can this contactor be used for both AC and DC operations?
Yes, the contactor is designed for AC (40...60Hz) and DC operation with a control voltage of UC 220-240V.
What are the main characteristics of the contactor?
The contactor is a 3-pole device with 3NO main contacts and a rating of 150 A. It's capable of handling 75 kW at 400 V ac/dc and comes with auxiliary contacts configured as 2NO+2NC.
What is the size of this contactor?
The contactor is of size S6, which refers to its physical dimensions and current rating according to the manufacturer's classification.
What type of connections does the contactor have?
It features bar connections for the main circuit and spring-loaded terminals for the auxiliary and control circuits.
What is the rated operational current for this contactor?
The rated operational current at AC-3 at 400 V is 150 A.
What are the dimensions of the contactor?
The contactor has a height of 172 mm, a width of 120 mm, and a depth of 170 mm.
Is side-by-side mounting possible with this contactor?
Yes, the contactor allows for side-by-side mounting without the need for additional spacing on the sides.
What is the mechanical service life of the contactor?
The contactor has a typical mechanical service life of 10 million operating cycles.
What is the protection class of the contactor?
The front of the contactor has a protection class of IP00, and it can be IP20 on the front with a cover or box terminal.
