PRODUCT DESCRIPTION
MITSUBISHI TH-N220RHKP 210A - Thermal Overload Relay
The MITSUBISHI TH-N220RHKP 210A is a thermal overload relay designed for the protection of three-phase AC motors in industrial control applications. This device monitors motor current and initiates a trip in the control circuit upon detection of overcurrent conditions, phase loss, or prolonged starting times, thereby preventing motor damage. It is suitable for integration into motor starter assemblies for equipment such as pumps, fans, conveyors, and general industrial machinery.
Technical Specifications:
- SERIES/FAMILY: MITSUBISHI TH-N Series
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- NOMINAL CURRENT RATING: 210A (Maximum setting for the adjustable range)
- ADJUSTABLE CURRENT RANGE: 168A to 210A (Typical for TH-N220 frame, 0.8 to 1.0 times nominal current)
- OPERATIONAL VOLTAGE: Up to 690VAC (Main circuit)
- CONTROL CIRCUIT VOLTAGE: 24VDC to 600VAC (For auxiliary contacts, dependent on rating)
- PHASE: Three-phase
- FREQUENCY: 50/60 Hz
- TRIP CLASS: Class 10A (Standard for general purpose motor protection)
- MECHANICAL/PHYSICAL:
- MOUNTING: Direct mounting to compatible MITSUBISHI S-N series contactors (e.g., S-N220 frame) or standalone DIN rail mounting with optional adapter
- RESET TYPE: Manual or Automatic (Selectable)
- AUXILIARY CONTACTS: 1 Normally Open (NO) + 1 Normally Closed (NC)
- INTERFACE/CONTROL:
- INDICATORS: Trip indicator
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Protection against solid objects >12.5mm, typical for enclosed panel mounting)
- OPERATING TEMPERATURE: -20°C to +60°C
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION:
- COMPATIBLE CONTACTORS: MITSUBISHI S-N series contactors of appropriate frame size
- APPLICATIONS: Overcurrent and phase loss protection for industrial AC motors in pumps, fans, compressors, conveyors, and general machinery.