3UN2131-0AF7 Siemens Motor Protection Thermistor Relay 110/120VAC PTC Temperature Monitoring Relay

Description:

• Genuine Siemens thermistor motor protection relay for monitoring PTC thermistor sensors embedded in electric motors
• Protects motors from overheating by disconnecting the control circuit when the thermistor trip temperature is reached
• Designed for 110/120 VAC, 50/60 Hz control voltage operation
• Features 1 Normally Open (1 NO) and 1 Normally Closed (1 NC) output contacts for alarm and trip functions
• Provides reliable protection against motor overheating, stalled rotor conditions, overload, and inadequate cooling
• Includes wire-break and sensor monitoring for increased system reliability
• DIN rail mountable compact housing for easy installation in industrial control panels
• Ideal for motor control centers, pumps, fans, compressors, conveyors, HVAC systems, and industrial automation
• Manufactured in Germany and built to Siemens industrial quality standards.

Specifications:

• Manufacturer Name: Siemens
• Part Number (MPN): 3UN2131-0AF7
• Product Type: Motor Protection Thermistor Relay
• Temperature Sensor Type: PTC Thermistor
• Control Supply Voltage:
  • 110 VAC (50 Hz)
  • 120 VAC (60 Hz)
• Output Contacts:
  • 1 Normally Open (1 NO)
  • 1 Normally Closed (1 NC)
• Contact Rating:
  • AC-15: 6 A @ 120 VAC, 3 A @ 250 VAC, 1.5 A @ 400 VAC
  • DC-13: 2 A @ 24 VDC
• Maximum Current: 6 A
• Mounting Type: DIN Rail / Panel Mount
• Standards:
  • IEC 34-11
  • VDE 0660
• Country of Origin: Germany
• Applications:
  • Electric Motor Protection
  • Pump Control
  • HVAC Systems
  • Compressors
  • Industrial Automation
  • Motor Control Centers
  • Conveyor Systems
  • OEM Machinery

Dimensions:

• Compact DIN rail-mounted relay enclosure designed for industrial control panels.

Weight:

• Approximate Weight: 0.20 kg (0.44 lb).