Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: suntree/OEM
  • Model Number: 3UA-52
  • Theory: Thermal Relay
  • Usage: Protective
  • Size: Miniature
  • Protect Feature: Sealed
  • Contact Load: Low Power
  • rated insulation voltage: 690V
  • rated current: 13-66A
  • type: 3UA
  • STANDARD: IEC60947-4
  • Price: Competitive
  • quality: Stable and reliable
  • class: A,B
  • Certification: CE,ISO9001
  • PHASE: 3


S3UA series thermal overload relay are suitable for overload and
phase-failure protection of AC motors with frequency of 50/60Hz,
voltage up to 690V, current up to 0.1-630A under 8-hours duty or
uninterrupted duty.
Functions provided by these relays, are phase-failure protection,
temperature compensation, ON/OFF indication, and manual/
automatic reset.
Applicable Standards:National Standard:GB14048. International
Standards:IEC609474-1 The relays can be mounted onto contactors
or installed as single units.

Technical data

Protection characteristics