Danfoss 060B200891 Oil Differential Pressure Control MP54, 6 Psi Control Differential, Regulation Range LP Side 29 inHg - 175 psi,45 Sec Time Relay Delay, 1/4 in Flare M Connection
Fixed and adjustable differentials available. Extremely narrow switch differential accuracy
eliable, long life stainless steel bellows. Sturdy metal cover and universal mounting hole patterns
Integral ½ NPSM swivel cable connector allows direct attachment of 1/2 in male pipe thread connector
Simple manual trip, electrical test function eliminates need of tools and test jumper wires. Standard four-wire hook-up
Can be used for HCFC and non-flammable HFC refrigerants
Weight : 2.0 LBR
Volume : 0.125 FTQ
Model : 060B200891
UPC-EAN : 5702424499556
Differential pressure switch / Lube oil protection control MP 54 and MP 55
MP 54 and MP 55 oil differential pressure switches are used as safety switches to protect refrigeration compressors against low lubricating oil pressure. If the oil pressure fails, the switch will stop the compressor after a predetermined time period has elapsed.
MP 54 and MP 55 are used in refrigerating systems using HCFC and non-flammable HFC refrigerants.
MP 54 has a fixed differential pressure setting. It also incorporates a thermal time relay with a fixed release time setting
MP 55 have adjustable differential pressure and are available with thermal time relay.
The operation of the pressure switch is based only on the differential pressure, i.e. the difference in pressure between the two counteracting bellows, whereas it is independent of the absolute pressure acting on both bellows.
The MP 55 can be set for different differential pressures by the setting disc (3). The set differential pressure can be read from the internal scale.
The MP 54 has a fixed differential and has no pressure setting disc. The factory-set differential pressure is stamped on the front plate of the switch.
If there is no oil pressure on starting, or if the oil pressure falls below the set pressure during operation, the compressor will stop after the release time has elapsed. The electrical circuit is divided into two completely separate circuits, a safety circuit and an operational circuit.
The timer in the safety circuit is activated when the effective lubricating oil pressure, the oil differential pressure (the difference between the oil pump pressure and suction pressure), is lower than the set value.
The timer is deactivated when the oil differential pressure is more than the set value plus the contact differential.
Data sheet
- Product Feature
- Can be used for HCFC and non-flammable HFC refrigerants
- Fixed and adjustable differentials available. Extremely narrow switch differential accuracy
- Integral ½ NPSM swivel cable connector allows direct attachment of 1/2 in male pipe thread connector
- Simple manual trip, electrical test function eliminates need of tools and test jumper wires. Standard four-wire hook-up
- eliable, long life stainless steel bellows. Sturdy metal cover and universal mounting hole patterns
- Weight
- 2.0 LBR
- Volume
- 0.125 FTQ
- Model
- 060B200891
- UPC-EAN
- 5702424499556
- Sales Unit
- EA
- Origin
- Poland
- US Tariff Code
- 9032.20.0000
- Base Unit
- EA
- Dimensions
- 6.0 x 6.0 x 6.0