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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT2027-1AB00 |
| Alternative Part Number | 3RT20271AB00 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Size | S0 |
| Rated Control Supply Voltage | AC 24V, 50Hz |
| Operational Voltage | Up to 690V (insulation voltage) |
| AC-3 Rating | 15 kW/400V |
| AC-1 Rating | 50 A/690V |
| Auxiliary Contacts | 1 Normally Open (NO) + 1 Normally Closed (NC) |
| Number of Poles | 3-pole |
| Terminal Type | Screw Terminal |
| Degree of Protection | IP20 for front and terminals |
| Surge Voltage Resistance | Rated value 6 kV |
| Insulation Voltage | Rated value 690 V |
| Commodity Code | 853649 |
| Shock Resistance | Compliant with industry standards for shock resistance |
| Ambient Temperature Range | Suitable for operation in standard industrial temperature ranges |
| Mounting Method | Designed for easy mounting and integration into various control systems and power distribution |
| Compliance | Meets international standards for safety and performance |
The Siemens 3RT2027-1AB00 is a robust power contactor designed to handle high switching capacities with ease. This contactor is part of the SIRIUS product range and is engineered to facilitate the control of motor loads or power circuits in a variety of industrial applications. With its compact size classified as S0, it is suitable for space-saving installations while offering reliable performance.
The 3RT2027-1AB00 is equipped with three poles and an AC-3 rating of 15 kW at 400V, making it an ideal choice for managing moderate to high power requirements. The contactor operates with an AC 24V 50Hz control supply voltage, ensuring compatibility with standard industrial power supplies. Additionally, it features a combination of one normally open (NO) and one normally closed (NC) auxiliary contact, providing flexibility for circuit control and signalling.
Constructed with attention to durability, the 3RT2027-1AB00 boasts an insulation voltage rated at 690V and has a surge voltage resistance of 6 kV, ensuring it can withstand challenging electrical environments. The contactor's terminals are designed for screw connection, allowing for secure and straightforward wiring.
This power contactor is suitable for a wide range of applications, including but not limited to, starting and stopping motors, switching heating loads, capacitors, lighting, and resistive loads. Its reliability and efficiency make it a valuable component in the automation and control systems of manufacturing plants, HVAC systems, and other industrial settings where precise power control is required.
The Siemens 3RT2027-1AB00 is a testament to Siemens' commitment to quality, offering a combination of performance, reliability, and versatility for industrial control applications.
Commonly Asked Questions
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Frequently Asked Questions
What is the rated control supply voltage for this contactor?
The rated control supply voltage for the Siemens 3RT2027-1AB00 contactor is AC 24V at 50Hz.
Can this contactor be used for three-phase motor applications?
Yes, the Siemens 3RT2027-1AB00 contactor is suitable for switching three-phase motors and has a rated operating power for AC-3 utilisation at 400V for a 15 kW motor.
What is the insulation voltage rating of this contactor?
The insulation voltage rating of the Siemens 3RT2027-1AB00 contactor is 690V.
What are the dimensions of this contactor?
The dimensions of the Siemens 3RT2027-1AB00 contactor are 85mm in height, 45mm in width, and 97mm in depth.
What is the operating frequency of this contactor in AC-3 utilisation?
The operating frequency of the Siemens 3RT2027-1AB00 contactor in AC-3 utilisation is a maximum of 750 operations per hour.
What type of mounting can be used with this contactor?
The Siemens 3RT2027-1AB00 contactor can be mounted using screw and snap-on mounting onto a 35mm standard mounting rail according to DIN EN 50022.
What is the protection class of the terminals of this contactor?
The terminals of the Siemens 3RT2027-1AB00 contactor have a protection class of IP20.
What is the short-circuit protection design for this contactor?
For short-circuit protection of the main circuit, the Siemens 3RT2027-1AB00 contactor requires a gG NH 3NA, DIAZED 5SB, or NEOZED 5SE fuse link with a type of coordination 1 required at 125A.
What auxiliary contacts does this contactor come with?
The Siemens 3RT2027-1AB00 contactor comes with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact.
Is there a specific orientation required for mounting this contactor?
The Siemens 3RT2027-1AB00 contactor can be mounted with a +/-180° rotation possible on a vertical mounting surface and can be tilted forward and backward by +/- 22.5°.
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