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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RU1116-1AC1 |
| Alternative Part Number | 3RU11161AC1 |
| Manufacturer | Siemens |
| Product Type | Thermal Overload Relay |
| Size | S00 |
| Number of Poles | 3 for main current circuit |
| Adjustable Response Current | 1.1 to 1.6 A |
| Operating Voltage (AC-3, max) | 690 V |
| Auxiliary Circuit Contacts | 1 NC (Normally Closed), 1 NO (Normally Open) |
| Operating Current for Auxiliary Contacts (AC-15) | At 24 V: 3 A, At 230 V: 2 A, At 400 V: 1 A |
| Operating Current for Auxiliary Contacts (DC-13) | At 24 V: 1 A, At 110 V: 0.22 A, At 220 V: 0.11 A |
| Trip Class | CLASS 10 |
| Short-Circuit Protection | Fuse gL/gG: 6 A, quick: 10 A |
| Mounting Type | Stand-alone installation |
| Mounting Position | With vertical mounting surface +/-135° rotatable, +/- 45° tiltable to the front and back |
| Dimensions (H x W x D) | 92 mm x 45 mm x 78 mm |
| Connection Type | Cage Clamp terminals for main and auxiliary/control current circuits |
| Conductor Cross-Section | Main contacts: 2x (0.25 ... 2.5 mm²), Auxiliary contacts: 2x (0.5 ... 2.5 mm²) |
| Protection Class IP | IP20 on the front |
| Ambient Operating Temperature | -20 to +70 °C |
| Relative Humidity | Up to 100% during operation |
| Impulse Voltage Resistance | 6 kV |
| Shock Resistance | 8g / 10 ms |
| Installation Altitude | Up to 2000 m above sea level |
The Siemens 3RU1116-1AC1 is a thermal overload relay designed to provide efficient protection for motors in the event of an overload or phase failure. This component is part of the SIRIUS product family and is suitable for a size S00 contactor setup. It features a current adjustment range of 1.1 to 1.6 A, ensuring precise protection for a variety of motor sizes within this range.
Crafted with a focus on reliability and durability, the 3RU1116-1AC1 is equipped with a Cage Clamp connection for both the main and auxiliary circuits, facilitating a secure and maintenance-free connection that is resistant to vibration. The relay is also designed for stand-alone installation, with a compact form factor measuring 45 mm in width, 92 mm in height, and 78 mm in depth, allowing for efficient use of space inside control cabinets.
The overload relay operates with a trip class of 10, which ensures a quick response to overloads, typically within 10 seconds, to prevent motor damage. It is also rated for an impulse voltage resistance of 6 kV and offers a finger-safe design to enhance safety during installation and maintenance.
With an ambient operating temperature range of -20 to +70°C and capable of withstanding up to 100% relative humidity during operation, the 3RU1116-1AC1 is robust and suitable for challenging industrial environments. Additionally, it has been designed to be shock-resistant, withstanding impacts of 8g/10 ms, and can be installed at altitudes up to 2000 meters above sea level without derating.
The 3RU1116-1AC1 is a testament to Siemens' commitment to quality and innovation in motor control and protection, making it an essential component for a wide range of industrial applications.
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Frequently Asked Questions
What is the function of this overload relay?
The overload relay is designed to protect motors from overcurrent by interrupting the electrical supply when an overload condition is detected, typically used in conjunction with a contactor.
Can this overload relay be adjusted?
Yes, the overload relay has an adjustable response current range from 1.1 to 1.6 A, allowing for precise protection settings according to the motor's requirements.
What type of connections does this overload relay support?
The relay features Cage Clamp connections for both the main and auxiliary circuits, facilitating secure and maintenance-free connections.
What is the size of this overload relay?
This overload relay is of size S00, making it compact and suitable for integration into various control systems.
What is the trip class of this overload relay?
The trip class of the relay is CLASS 10, which indicates the time it takes for the relay to respond to an overload condition.
What are the environmental operating conditions for this relay?
The relay can operate within an ambient temperature range of -20 to +70°C and at altitudes up to 2000 metres above sea level, with a relative humidity of up to 100% during operation.
What is the protection class of the front side of this relay?
The front side of the relay is rated at IP20, providing protection against solid objects larger than 12.5 mm but not against water.
What are the dimensions of this overload relay?
The dimensions of the relay are 92 mm in height, 45 mm in width, and 78 mm in depth.
Is there a specific orientation required for mounting this relay?
The relay can be mounted with a vertical mounting surface that is +/-135° rotatable and +/- 45° tiltable to the front and back, offering flexibility in installation.
What type of protection does this relay offer?
In addition to overload protection, the relay offers finger-safe protection against electrical shock and is shock-resistant up to 8g / 10 ms.
