Product
Relé Térmico de Sobrecarga JR28-25(LR2-D13)12-18A - KAYAMA
Kayama JR28-25 LR2-D13 Thermal Overload Relay with 12–18 A adjustable current range for motor protection
The Kayama JR28-25 LR2-D13 Thermal Overload Relay is designed to protect electric motors against prolonged overload conditions, with an adjustable current range of 12 to 18 A. It can be integrated into motor control systems with properly sized contactors and protection devices.
- SKU
- 07130007
- Category
- Thermal
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Technical Description
The Kayama JR28-25 LR2-D13 Thermal Overload Relay is designed to protect electric motors against prolonged overload conditions.
This version has an adjustable current range of 12 to 18 A and should be set according to the motor rated current and actual operating conditions.
Technical Characteristics
- Brand: Kayama
- Model: JR28-25
- Reference: LR2-D13
- Type: Thermal overload relay
- Adjustable current range: 12 to 18 A
- Application: motor protection against prolonged overload
- Purpose: motor control and protection
Overload Protection
The relay is intended to act when the motor remains above the adjusted current for a period consistent with its thermal operating characteristic.
Adjustable 12–18 A Range
The adjustment should primarily be based on the motor rated current.
Motor horsepower or kW alone should not be used as the only selection criterion.
Thermal Principle
Thermal overload relays use current-related heating to identify prolonged overload conditions.
When the thermal operating threshold is reached, the relay can act on the control circuit.
Contactor Integration
The JR28-25 may be used with compatible contactors when mechanical and electrical compatibility has been confirmed.
Short-Circuit Protection
The thermal overload relay does not replace short-circuit protection.
Suitable circuit breakers, fuses or other protective devices remain necessary.
Starting Current
Motor starting current can be significantly higher than rated current.
System design must therefore consider starting current, acceleration time and operating conditions.
Trip Class
The exact trip class has not been confirmed for this version.
A specific class should not be assigned without technical documentation.
Reset
The exact reset configuration of this version was not confirmed and should be checked on the product or in specific technical documentation.
Installation and Safety
Installation should be performed by qualified personnel.
Before energizing, verify motor rated current, relay adjustment, contactor compatibility, short-circuit protection and wiring.
Registration Information
- Brand: Kayama
- Model: JR28-25
- Reference: LR2-D13
- Current range: 12–18 A
- Type: Thermal overload relay
Kayama Quality
The Kayama JR28-25 LR2-D13 12–18 A Thermal Overload Relay is part of Kayama's professional range for electric motor control and protection.
The Kayama JR28-25 LR2-D13 12–18 A Thermal Overload Relay can be used in motor control and protection systems where the motor rated current falls within its adjustment range.
- Electric motors — protection against prolonged overload conditions within the 12–18 A range.
- Pumps — can form part of motor protection in pumping systems.
- Fans — assists in protecting motors against persistent overcurrent.
- Exhaust systems — can act on the control circuit under overload conditions.
- Compressors — can be integrated into properly designed motor protection systems.
- Industrial machinery — can form part of machine motor protection circuits.
- Motorized systems — suitable for motors with rated current within 12–18 A.
- Control panels — can be integrated with compatible contactors and protection devices.
- Automated systems — can provide a trip condition to the control circuit.
- Motor starting assemblies — can operate together with short-circuit protection, contactor and motor.
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