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Specification & Description
| Specification | Description |
|---|---|
| Part Number | EMT6-DB |
| Alternative Part Number | EMT6DB |
| Manufacturer | Moeller |
| Series | EMT6 |
| Type | Thermistor Overload Relay |
| Rated Control Voltage | 24 to 240 V ac/dc |
| Rated Operational Current | 6 A |
| Contact Configuration | SP (Single Pole) |
| Power Consumption | 2 W |
| Dimensions | 22.5 x 104.2 x 81.2 mm |
| Mounting Type | Can be snap fitted on a top-hat rail to IEC/EN 60715 |
| Ambient Temperature Range | -25 to +60 °C (Open), -25 to +45 °C (Enclosed), -45 to +85 °C (Storage) |
| Degree of Protection | IP20 |
| Rated Insulation Voltage (Ui) | 300 V, 400 V (Value applies starting with release 001) |
| Rated Impulse Withstand Voltage (Uimp) | 4000 V AC, 6000 V AC (Value applies starting with release 001) |
| Overvoltage Category | III/3 |
| Terminal Capacity | Solid: 1 x (0.5 - 2.5) mm², 2 x (0.5 - 1.5) mm²; Flexible with ferrule: 1 x (0.5 - 2.5) mm², 2 x (0.5 - 1.5) mm² |
| Terminal Screw | M3.5 |
| Tightening Torque | 1.2 Nm |
| Mechanical Shock Resistance | Half-sinusoidal shock 10 ms to IEC 60068-2-27: 10 g |
| Electromagnetic Compatibility (EMC) | Compliant with IEC/EN 61000-4 standards for ESD, RFI, Burst, and Surge |
| Approvals | UL 508; CSA-C22.2 No. 14; IEC/EN 60947-8; CE marking |
The Moeller EMT6-DB Thermistor Overload Relay is a versatile and reliable component designed for machine protection. This compact device is engineered to monitor the temperature of motors and prevent damage due to overheating. With a rated operational voltage range of 24 to 240 V ac/dc and a conventional thermal current of 6 A, it is suitable for a wide array of applications.
The EMT6-DB features a selector switch for manual or remote resetting and includes a test button for system checks. The mains and fault LED display provide clear and immediate status indication, enhancing the user experience. Its dimensions of 22.5 x 104.2 x 81.2 mm allow for easy integration into electrical systems without requiring significant space.
Constructed to meet the rigorous standards of IEC/EN 60947, VDE 0660, and EN 55011, the EMT6-DB ensures compliance with international safety and performance requirements. The device's ambient operating temperature range from -25°C to +60°C makes it suitable for challenging industrial environments.
The EMT6-DB's screw connection type ensures a secure and reliable electrical connection, while its IP20 degree of protection provides a basic level of protection against solid objects. This thermistor overload relay is an essential component for any setup requiring dependable motor protection and temperature monitoring.
Commonly Asked Questions
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Frequently Asked Questions
What is the function of this thermistor overload relay?
The thermistor overload relay is designed for machine protection. It monitors the temperature of motors and triggers an alarm or disconnects the power supply to prevent overheating and potential damage.
Can this relay be manually reset?
Yes, the relay features a selector switch that allows for manual or remote resetting, as well as a test button for operational checks.
What is the rated operational current for this relay?
The rated operational current for the EMT6-DB is 6 A for AC-15 at 240 V and AC-14 at 300 V and 400 V.
What are the voltage requirements for this relay?
The relay can operate within a control supply voltage range of 24 to 240 V at 50 to 400 Hz for AC, and 24 to 240 V for DC.
What are the ambient temperature limits for this relay?
The operating ambient temperature range for the relay is from -25°C to +60°C when open, and -25°C to +45°C when enclosed.
What type of electric connection does this relay have?
The relay is equipped with a screw connection for secure and reliable electrical connectivity.
What is the degree of protection provided by this relay?
The relay has a degree of protection rated at IP20, ensuring protection against solid objects larger than 12.5 mm but not against water.
What are the dimensions of this relay?
The dimensions of the relay are 22.5 mm in width, 104.2 mm in height, and 81.2 mm in depth.
Is there a maximum cable length for the sensor circuit?
Yes, the maximum cable length to the sensor should not exceed 250 meters when not insulated, with a total cold resistance of less than or equal to 1500 Ohms.
What certifications does this relay hold?
The relay is certified with UL 508, CSA-C22.2 No. 14, IEC/EN 60947-8, and carries the CE marking, indicating compliance with the relevant standards.
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