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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1023-3BB40 |
| Alternative Part Number | 3RT10233BB40 |
| Manufacturer | Siemens |
| Poles | 3 Poles |
| Contact Configuration | 3NO (3 Normally Open) |
| Rated Operational Current | 9 A at AC-3 / 400 V |
| Power Rating | 4 kW at 400 V |
| Control Voltage | 24V DC |
| Contactor Size | S0 |
| Connection Type | Cage Clamp Connection |
| Mounting Position | Vertical |
| Protection Class | IP20 |
| Degree of Pollution | 3 |
| Installation Altitude | Up to 2,000 m above sea level |
| Ambient Operating Temperature | -25 … +60 °C |
| Mechanical Operating Cycles | 10,000,000 typical for contactor |
| Number of NC Contacts (Main) | 0 |
| Number of NO Contacts (Main) | 3 |
| Operating Current at AC-1 | 40 A at 400 V |
| Operating Current at AC-4 | 8.5 A at 400 V |
| Service Power at AC-2 | 4 kW at 400 V |
| Service Power at AC-3 | 4 kW at 400 V |
| Service Power at AC-4 | 4,000 W at 400 V |
| Control Circuit Voltage Type | DC |
| Operating Range Factor | 0.8 … 1.1 for DC |
| Pull-in Power | 5.4 W for DC |
| Holding Power | 5.4 W for DC |
| Contact Reliability | 1 faulty switching per 100 million (17 V, 1 mA) for auxiliary contacts |
| Short-Circuit Protection | Fuse gL/gG: 10 A for auxiliary switch, Fuse gL/gG: 63 A for main circuit |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail (DIN EN 50022) |
| Width | 45 mm |
| Height | 85 mm |
| Depth | 100 mm |
| Required Spacing | 6 mm to earthed parts/sideways |
| Commodity Code | 853649 |
The Siemens 3RT1023-3BB40 is a robust power contactor designed to handle a variety of applications within industrial environments. This contactor is part of the SIRIUS product family, known for its reliability and efficiency in controlling motors and loads. With a compact size S0 footprint, it is suitable for space-saving installations and can be easily integrated into existing systems.
This power contactor is equipped with three poles and exclusively normally open (NO) contacts, making it ideal for applications requiring a high switching capacity. It is rated for AC-3 usage at 4 kW/400 V, ensuring it can manage the demands of moderate power motors with ease. The DC control voltage of 24V allows for direct integration with programmable logic controllers (PLCs) and other low-voltage control systems.
The contactor boasts a mechanical service life of up to 10 million operating cycles, indicating its durability and long-term performance. It also features a cage clamp connection and can be mounted in a vertical position, offering flexibility and ease of installation. With an IP20 protection class on the front, it provides a basic level of protection against solid objects.
Designed to operate within a wide ambient temperature range of -25 to +60 degrees Celsius and at installation altitudes of up to 2000 meters above sea level, the Siemens 3RT1023-3BB40 is versatile and adaptable to various working conditions. Its compliance with international standards ensures it meets the requirements for a wide range of industrial applications.
Whether you're looking to control motors, lighting, heating, or ventilation systems, this Siemens power contactor is a reliable choice that combines performance with a user-friendly design.
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Frequently Asked Questions
What are the main characteristics of this power contactor?
The power contactor is a 3-pole device with 3 normally open (NO) contacts, rated for 9 A operating current at AC-3 400 V, and has a control voltage of 24V DC. It's designed for a power rating of 4 kW at 400 V in AC-3 applications and is suitable for mounting onto a 35 mm standard mounting rail according to DIN EN 50022.
Can this contactor be installed in any orientation?
The contactor is designed for vertical mounting positions to ensure proper operation and longevity.
What is the size of this contactor and how much space is required for installation?
The contactor is of size S0, with dimensions of 45 mm in width, 85 mm in height, and 100 mm in depth. A spacing of 6 mm to earthed parts is required at the side for proper installation.
What type of terminals does this contactor have for electrical connections?
This contactor features screw-type terminals for the main current circuit and spring-loaded terminals for the auxiliary and control current circuit.
What is the mechanical service life of this contactor?
The mechanical service life of the contactor is typically 10 million operating cycles, which can vary when auxiliary switch blocks are added.
What is the ambient temperature range for operating this contactor?
The contactor can operate within an ambient temperature range of -25 to +60 degrees Celsius.
What is the IP protection class of this contactor?
The contactor has an IP20 protection class on the front, indicating protection against solid objects larger than 12.5 mm but not against water.
What is the maximum installation altitude for this contactor?
The maximum installation altitude for the contactor is 2,000 meters above sea level.
How is the contact reliability of the auxiliary contacts rated?
The contact reliability of the auxiliary contacts is rated at 1 faulty switching per 100 million at 17 V, 1 mA.
What type of protection is required for the contactor's circuits?
For short-circuit protection of the main circuit, a fuse gL/gG with a rating of 63 A is required for type of coordination 1, and 25 A for type of coordination 2. For the auxiliary switch, a fuse gL/gG of 10 A is required.
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