GRP8-01 Thermistor Motor Protection Relay

The GRP8-01 Thermistor Motor Protection Relay from GEYA is a high-performance solution designed to safeguard your motors from damage. Utilizing advanced thermistor technology, it provides real-time temperature monitoring to prevent thermal overload caused by high switching frequency, heavy-duty starting, phase failure, poor cooling, or high ambient temperatures. Whether in industrial automation lines or mechanical manufacturing workshops, the GRP8-01 ensures reliable motor protection.

  • Voltage range: AC/DC 24-240V 50/60Hz
  • Burden: AC 0.09-3VA/DC 0.05-1.7W
  • Supply voltage tolerance:-15%;+10%
  • Max cold PTC resistance:1500Ω

→ Download GRP8-01 Thermistor Motor Protection Relay Catalog PDF

Description

Product Highlight:

Precise Temperature Control: With an alarm setpoint of 3100Ω ±10% and a return setpoint of 1650Ω ±10%, it keeps your motor operating within safe temperature limits.

Broken Wire Detection: Instantly alerts you to any sensor circuit interruptions, preventing motor damage due to undetected faults.

Flexible Installation: DIN rail mounting (EN/IEC 60715) offers quick and easy setup in any environment.

Wide Voltage Compatibility: Supports AC/DC 24-240V 50/60Hz, making it adaptable to various power systems.

Exceptional Durability: Boasts a mechanical life of 1×10⁷ cycles and an electrical life (AC1) of 1×10⁵ cycles for long-term reliability.

Application Example:

Application Example

Function:

Function

Panel Diagram:

Panel Diagram

Wiring Diagram:

Wiring Diagram

Dimensions(mm):

Dimensions(mm)

Model GP8-01
Function Thermistor motor protection relay
Supply terminals A1-A2
Voltage range AC/DC 24-240V 50/60Hz
Burden AC 0.09-3VA/DC 0.05-1.7W
Supply voltage tolerance -15%;+10%
Supply indication green LED
Max cold PTC resistance 1500Ω
Alarm setpoint 3100Ω±10%
Return setpoint 1650Ω±10%
Short-circuit detection 0 to10Ω
Output 1xSPDT
Current rating 10A/AC1
Switching voltage 250VAC/24VDC
Min.breaking capacity DC 500mW
Output indication Red LED
Mechanical life 1*10⁷
Electrical life(AC1) 1*10⁵
Operating temperature -20℃ ~ +55℃
Storage temperature -35℃ ~ +75℃
Mounting/DIN rail Din rail EN/IEC 60715
Protection degree IP20
Operating position any
Overvoltage cathegory III.
Pollution degree 2
Max.cable size(mm²) 1*2.5mm² or 2*1.5mm² 0.4N.m
Weight 62g
Standards IEC60947-8

 

Contact Us
Contact Us

Check Out The Full Catalog

Quick Info Exchange Helps Us Serve You Better
(Low-voltage and solar energy electrical components catalog)

Electrical Equipment catalog