The GIC MJ81BK is a thermistor relay designed for monitoring PTC sensors in motor windings. It provides single output protection against overheating, with selectable reset modes and compact DIN rail installation.
🔧 Technical Highlights:
- Supply Voltage: 85–270 VAC/DC or 24 VAC/DC (model specific)
- Functions: Monitors PTC thermistor sensor for motor protection against over-temperature; can include single phasing prevention
- Timing Range: Trip delay adjustable (model specific)
- Output Contacts: 1 C/O
- Contact Rating: 5A @ 250 VAC / 28 VDC
- Self-reset or manual reset
- DIN rail mounting
✅ Benefits:
- Protects motors from thermal damage
- Versatile reset configuration for different safety needs
- Compact profile ideal for OEM panel designs
🚀 Applications:
- Motor overload protection systems
- HVAC and pump control units
- Industrial temperature safety interlocks
The MJ81BK delivers reliable PTC-based thermal protection with a compact footprint.
FAQs
- Q: How is this product typically installed?
A: It is intended for DIN rail (17.5 mm) in industrial control cabinets.
- Q: Where is it commonly used?
A: It is used in automation and control panels where dependable switching, monitoring, or indication is required.