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Thermal Relay KNR1

Application
KNR1 series thermal relay can be used in the circuit of 50Hz or 60Hz, rated insulation voltage 660V, rated current 0.1-93A for protecting the phase break when the electric motor is overload.
The relay has different mechanism and temperature compensation& can be pluged in KNC1 series AC contact.

Feature  
A. Fundamental parameter of the main circuit
●Rated insulation voltage 660V;
●Rated working current 25,36,93A separately;
●The regulator seal of rate setting current and setting.
●Current of the thermal component
B. Auxiliary circuit
●There is a pair of NO and NC contact with electric insulation;
●Rated insulation voltage 500V;
●Rated frequency 50-60Hz;
●Use group, rated working voltage, appoint thermal current and rated current.

Type Rated working current of thermal relay Thermal component
Scale of rated current(A)
KNR1-13 25 1301 0.10-0.16
1302 0.16-0.25
1303 0.25-0.40
1304 0.40-0.63
1305 0.63-1.0
1306 1.0-1.6
13脳6 1.25-2.0
1307 1.6-2.5
1308 2.5-4.0
1310 4.0-6.0
1312 5.5-8.0
1314 7.0-10.0
1316 9.0-13.0
1321 12.0-18.0
1322 17.0-25.0
KNR1-23 36 2353 23.0-32.0
2255 28.0-36.0
KNR1-33 93 3353 23.0-32.0
3355 30.0-40.0
3357 37.0-50.0
3359 48.0-65.0
3361 55.0-70.0
3363 63.0-80.0
3365 80.0-93.0

Q1: What is the primary function of the KORLEN KNR1 thermal overload relay?

A: The KORLEN KNR1 thermal overload relay is engineered to protect AC electric motors against prolonged overloads, phase failures, and severe starting delays in industrial and commercial electrical control circuits.

Q2: Can the KNR1 thermal relay be mounted directly to an AC contactor?

A: Yes. The KNR1 series is designed with standard, robust connection pins that allow it to be plugged directly into compatible AC contactors (such as the KNC1 series), saving valuable installation time and space inside the switchboard panel.

Q3: How do you adjust the protection current on the KNR1 relay?

A: The front panel of the KNR1 relay features an adjustable thermal trip setting dial. Users or technicians can easily rotate the dial to calibrate the precise protection current range required by their specific electric motor’s rated current.

Q4: Does KORLEN support custom packaging and OEM branding for KNR1 relays?

A: As a leading electrical manufacturer in China, KORLEN offers comprehensive OEM/ODM customization services. We provide highly competitive direct-factory wholesale prices, custom logos, technical datasheets, and bulk packaging options for international distributors.

Source KNR1 Thermal Overload Relays Directly From China Manufacturer

Ensure stable motor protection with KORLEN’s premium low-voltage electrical components. Contact us today for reliable technical support, custom bulk options, and an immediate factory wholesale price quote!


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