PTC Thermistor Relay - 220-440 V AC, 2 C/O is a PTC thermistor relay designed for motor and transformer over-temperature protection. It monitors integrated PTC resistor sensors and provides 2 C/O relay output for alarm or trip circuits.
🔧 Technical Highlights:
- Product type: PTC thermistor relay
- Supply voltage: 220-440 V AC
- Output: 2 C/O relay contacts
- Sensor input: PTC thermistor sensor chain
- Trip level: 2.7 kΩ +/- 5%
- Reset level: 1.71 kΩ +/- 5%
- Contact rating: 5 A resistive at 250 V AC / 28 V DC
- Mounting: DIN rail, 22.5 mm housing
✅ Benefits:
- Helps protect motors and transformers from over-temperature conditions.
- Provides two changeover outputs for control, alarm, or trip wiring.
- Detects sensor open and short conditions for easier fault diagnosis.
- Supports auto, manual, and remote reset operation.
🚀 Applications:
- Motor winding temperature protection
- Transformer temperature monitoring
- Machine protection circuits
- Industrial control panels
MJ93BK provides PTC thermistor relay protection for dependable motor and transformer temperature monitoring.
FAQs
- Q: What is the MJ93BK used for?
A: It monitors PTC thermistor sensors in motors, transformers, or machinery and switches its relay outputs when an over-temperature condition is detected. - Q: What is the main selection detail for MJ93BK?
A: The key selection detail is a 220-440 V AC PTC thermistor relay with 2 C/O relay output.