Product
Relé Térmico de Sobrecarga JR28-25(LR2-D13)23-32A - KAYAMA
Kayama JR28-25 LR2-D13 Thermal Overload Relay with 23–32 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 23 to 32 A. It can be integrated into motor control systems with properly sized contactors and protection devices.
- SKU
- 07130008
- 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 23 to 32 A and should be selected and adjusted 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: 23 to 32 A
- Application: motor protection against prolonged overload
- Purpose: electric motor control and protection
Overload Protection
The relay is intended to operate when motor current remains above the adjusted value for a period consistent with its thermal operating characteristic.
Adjustable 23–32 A Range
The adjustment should be selected according to the actual rated current shown on the motor nameplate.
Motor power alone should not be used as the only selection criterion.
Thermal Operating Principle
Thermal overload relays use current-related heating to detect prolonged overload conditions.
When the operating threshold is reached, the relay can act on the motor control circuit.
Short-Circuit Protection
The JR28-25 does not replace short-circuit protection.
Suitable circuit breakers, fuses or other protection devices remain necessary.
Motor Starting Current
Motor starting current may be significantly higher than rated current.
The system should therefore consider starting current, acceleration time, starting frequency and relay operating characteristics.
Trip Class
The exact trip class has not been confirmed for the 23–32 A version.
No specific trip class should be assigned without technical documentation.
Reset
The exact reset configuration of this version has not been reliably confirmed and should be checked directly on the product or in official technical documentation.
Contactor Compatibility
Compatibility with a contactor must be confirmed according to terminal geometry, mounting, dimensions and electrical characteristics.
Installation and Safety
Installation should be performed by qualified personnel.
Before energizing, verify motor current, relay adjustment, contactor compatibility, short-circuit protection and wiring.
Registration Information
- Brand: Kayama
- Model: JR28-25
- Reference: LR2-D13
- Current range: 23–32 A
- Type: Thermal overload relay
Kayama Quality
The Kayama JR28-25 LR2-D13 23–32 A Thermal Overload Relay is part of Kayama's professional range for electric motor control and protection.
The Kayama JR28-25 LR2-D13 23–32 A Thermal Overload Relay can be used in motor control and protection systems where the motor rated current falls within its adjustable range.
- Electric motors — protection against prolonged overload conditions within the 23–32 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 23–32 A.
- Control panels — can be integrated with compatible contactors and protective 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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