Danfoss MBC 5100 Pressure Control (Order Code: 061B000166 / 3421-1CB04)

Danfoss MBC 5100 Pressure Control

 (Order Code: 061B000166 / 3421-1CB04)

The Danfoss 061B000166 is a precise and reliable electromechanical pressure control device from the well-regarded MBC 5100 series. Engineered for critical monitoring and switching functions in refrigeration, air conditioning, and industrial fluid systems, this control ensures safe and efficient operation by opening or closing an electrical circuit at a predefined pressure threshold.

Key Features and Product Highlights

• Precise Pressure Sensing: Utilizes a durable, sensitive metal diaphragm to accurately detect system pressure changes, ensuring reliable and repeatable switching.

• Externally Adjustable Set Point: Features a calibrated external adjustment dial, allowing for straightforward field calibration to perfectly match the specific cut-in or cut-out pressure required by the application.

• Versatile SPDT Switching: Equipped with a Single-Pole, Double-Throw (SPDT or Form Z) electrical switch. This provides Common (C), Normally Closed (NC), and Normally Open (NO) terminals, offering maximum wiring flexibility for diverse control and safety circuits.

• Manual Reset Function: This specific variant (3421-1CB04) includes a manual reset mechanism. Following a safety trip (e.g., on high pressure), the switch remains in the tripped state until physically reset by an operator, a crucial safety feature that prevents automatic restart.

• Robust Industrial Construction: Housed in a compact, yet rugged casing designed to withstand vibration, moisture, and the challenging environmental conditions typical in industrial and HVACR settings.

• Broad Media Compatibility: Designed for use with common HFC and HCFC refrigerants, oils, and other compatible non-corrosive gases or liquids.

Technical Specifications

Applications

• Refrigeration & Cold Storage: Primary high-pressure safety cut-out for compressors in commercial freezers, chillers, and display cases.

• Air Conditioning Systems: Safety device on the compressor discharge line to prevent damage from excessive condensing pressure.

• Heat Pumps: High-pressure protection during heating mode operation.

• Industrial Machinery: Pressure monitoring and safety shutdown for hydraulic power units, lubrication systems, or compressed air receivers.

Danfoss 061B000166 MBC 5100 Pressure Control | MBC 5100 Series | 3421-1CB04

• Enhanced Safety Assurance: The manual reset function is critical for safety applications, ensuring a fault condition is investigated before system restart.

• Proven Danfoss Reliability: Benefits from Danfoss's global reputation for manufacturing high-quality, durable HVACR and industrial controls.

• Easy Installation & Setup: Clear external adjustment and standard electrical/process connections simplify installation and commissioning.

• Wiring Flexibility: The SPDT contact allows it to be configured for various control logic needs (alarm, shutdown, fan control).

• Global Serviceability: A widely used and recognized component, ensuring easy availability and technician familiarity.