Danfoss MP55A oil differential pressure switch, 0.3 bar–4.5 bar adjustable, automatic reset, G 3/8 in
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Product Description
Danfoss MP55A oil differential pressure switch, genuine OEM code number 060B029891. Protects a refrigeration or air-conditioning compressor against loss of lubricating oil pressure by monitoring the differential between oil-pump pressure and crankcase (suction) pressure and cutting out when it falls below the set value. Adjustable differential 0.3 bar–4.5 bar via the setting disc, factory set 0.65 bar, with readable internal scale; automatic reset. SPDT contact system, G 3/8 (BSPP parallel thread) (ISO 228-1) pressure connection, screwed cable entry (Pg 13.5), IP20 enclosure. Max. working pressure 17 bar. Suitable for HCFC and non-flammable HFC refrigerants. EAN 5702424499624.
Technical Specifications
- Brand
- Danfoss
- Part number (code number)
- 060B029891
- Type
- MP55A oil differential pressure switch (lubrication safety control)
- Category
- Sensors & Instrumentation — Pressure Switches
- Function
- cuts out on falling oil pressure (differential of oil-pump pressure over crankcase pressure)
- Differential setting
- 0.3 bar–4.5 bar (4.3 psi–65 psi), factory set 0.65 bar
- Reset
- automatic
- Time-delay relay
- none (automatic reset version)
- Contact system
- SPDT
- Contact rating
- AC15=0.1 A, 250 V DC13=12 W, 125 V
- Pressure connection
- G 3/8 (BSPP parallel thread) (ISO 228-1)
- Max. working pressure
- 17 bar (245 psig)
- Max. test pressure
- 22 bar
- Operating range, LP side
- -1 bar to 12 bar
- Electrical connection
- Screwed cable entry Pg 13.5
- Enclosure rating
- IP20
- Ambient temperature
- -40 °C to 60 °C
- Refrigerant compatibility
- HCFC and non-flammable HFC (e.g. R22, R134a, R404A, R407C, R448A, R449A, R450A, R513A)
- Packing
- Multi pack (21 pc)
- EAN
- 5702424499624
- HS code
- 9026.20
Standards & Compliance
- Size / Series
- G 3/8 (BSPP parallel thread) (ISO 228-1)
- Material
- Bellows-type differential pressure element; IP20 enclosure
- Thread Standard
- G 3/8 (BSPP parallel thread) (ISO 228-1)
- Pressure Rating
- max. working pressure 17 bar (245 psig); test 22 bar
- Temperature Range
- -40 °C to 60 °C ambient
- IP Rating
- IP20
- HS Code
- 9026.20
Compatibility & Fitment
MP55A lube-oil protection control for reciprocating and scroll refrigeration/AC compressors. MP55/MP55A differential is adjustable via the setting disc. The automatic-reset variant is distinct from the other MP time-delay/reset options — verify the required time delay and reset (manual vs automatic) for the compressor.
Product Documentation
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Technical guides
- Cross-Referencing Danfoss Refrigeration Components by IMPA and OEM Code
- Danfoss Product Code Decoder — 003Z, 013G, 017B, 023U, 027L, 032F, 060G, 060H, 065B, 065Z, 068Z, 084H, 132F, 148B Series (Complete Reference)
- Danfoss Maneurop MTZ Reciprocating Compressors — Model Range, Voltage Codes and Replacement Guide
Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 060B029891?
- 060B029891 can be ordered from cballast.com as a Danfoss catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Danfoss product?
- The manufacturer part number is 060B029891.
- What is the HS code for 060B029891?
- The customs tariff (HS) code for 060B029891 is 9026.20.
- Who manufactures 060B029891?
- 060B029891 is a Danfoss product in the Sensors & Instrumentation range.
- Is a datasheet available for 060B029891?
- Yes — the 060B029891 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 060B029891?
- The minimum order quantity is 1.
- Is 060B029891 available?
- Yes — 060B029891 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).