TECO Electric & Machinery Co., Ltd. RHU-10 25A1 Thermal Overload Relay

Description:

The TECO Electric & Machinery Co., Ltd. RHU-10 25A1 Thermal Overload Relay is used to protect three-phase electric motors from overload and phase failure conditions in industrial motor control systems. Commonly installed in motor starters, pump control panels, compressors, conveyors, HVAC equipment, machine tools, and industrial automation systems requiring dependable thermal motor protection. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of industrial motor protection systems.

Applications:

The TECO Electric & Machinery Co., Ltd. RHU-10 25A1 is a thermal overload relay from the RHU-10 series designed for use with TECO magnetic contactors and direct-on-line (DOL) motor starters. It provides adjustable overload protection, phase-loss protection, automatic ambient temperature compensation, selectable manual or automatic reset, and an integrated TEST/STOP function to safeguard motors against sustained overcurrent conditions. The relay is commonly used in manufacturing plants, water and wastewater treatment facilities, HVAC systems, compressors, pumps, conveyors, machine tools, refrigeration systems, and industrial automation equipment. 

Technical Specifications:

• Manufacturer: TECO Electric & Machinery Co., Ltd.
• Manufacturer Part Number (MPN): RHU-10 25A1
• Product Type: Thermal Overload Relay
• Relay Series: RHU-10
• Protection Type: Thermal Overload and Phase Failure Protection (A Type)
• Adjustable Current Setting: 20–25 A
• Compatible Contactor Series: TECO CU-11, CU-18, CU-25, CU-32R Magnetic Contactors
• Rated Frequency: 50/60 Hz
• Auxiliary Contacts: 1 Normally Open (NO) + 1 Normally Closed (NC)
• Reset Function: Selectable Manual or Automatic Reset
• Test Function: Integrated TEST/STOP Button
• Temperature Compensation: Automatic Ambient Temperature Compensation
• Terminal Protection: IP20 Finger-Safe Protective Cover
• Mounting Style: Direct Contactor Mount or Independent Base Mount
• Standards: IEC 60947-4-1
• Certifications: UL, cULus, CSA, TÜV, RU, cRUus
• Compatible Equipment: Motor starters, pumps, compressors, conveyors, fans, blowers, HVAC equipment, refrigeration systems, elevators, cranes, and industrial motor protection circuits.

Common Replacements:

• TECO RHU-10 21.5A1
• TECO RHU-10 30A1
• TECO RHN-180 25A1