061B000966 Danfoss MBC8100 Pressure Temperature Switch

Product Overview

The 061B000966, 061B800266, 061B800366, 061B800566, 061B80036 and 061B001066 belong to the Danfoss MBC 8100 / MBC 5000/5100 series of pressure and temperature switches. The MBC 8100 is a heavy-duty marine thermostat, while the pressure versions use bellows or diaphragm sensing. Featuring IP65 enclosure, SPDT contacts and multiple marine approvals, these switches are fully interchangeable with original Danfoss units and undergo 100% simulated operating-condition testing for reliable pressure/temperature monitoring and protection in marine, industrial hydraulic and refrigeration systems.

Technical Specifications 

• Model: 061B000966 / 061B800266 / 061B800366 etc. (MBC 8100 temperature / MBC pressure switch series)
• Type: Pressure switch or temperature switch (thermostat)
• Pressure regulation range (pressure versions): typically –0.2 to 1 bar or higher (model-dependent)
• Temperature regulation range (temperature versions): typically –10 to 150 °C (model-dependent)
• Maximum working pressure: up to 15–150 bar (pressure versions, sensing-element dependent)
• Contact function: SPDT
• Contact rating: AC15 0.5 A / 250 V; DC13 12 W / 125 V
• Reset function: Automatic
• Enclosure rating: IP65
• Electrical connection: DIN plug
• Sensing element: Bellows/diaphragm (pressure) or capillary/rigid sensor (temperature)
• Approvals: ABS, BV, DNV, CCS, CE, LR and other marine certifications

Key Technical Advantages

1. Marine-grade robust design: IP65 protection and vibration resistance for harsh marine and industrial environments.
2. Precise switching: SPDT contacts with stable differential ensure reliable pressure or temperature protection.
3. High interchangeability: Identical interfaces and setting ranges to original Danfoss MBC series enable direct drop-in replacement.
4. 100% functional verification under simulated conditions: Every unit is fully tested across switching and environmental conditions before shipment.

Application Areas

• Pressure/temperature protection on marine hydraulic and cooling systems
• Industrial hydraulic power units and pump stations
• Compressors and refrigeration systems
• Safety control on construction machinery
• Applications requiring marine-approved switches

Expert Maintenance Tips

Ensure reliable sealing at connections using correct gaskets. Observe contact ratings during wiring. Periodically check set-point for drift. Maintain clean system media. For long-term storage keep dry. Always confirm range and reset function compatibility before replacement; never exceed rated limits.