Consider this a valuable learning opprotunity.
There are two classes of people who own houses. Five to ten percent of homeowners have enough money that calling someone to service everything is not a financial burden.
The rest will save $1000 to $3000 per year by learning about their systems, how to diagnose them, and how to fix them. You may need to invest a small amount of that in tools to diagnose and fix your equipment.
Every pump is defined by 4 characteristics:
1. Type of pump, which is related to what it is supposed to do
2. Horsepower of the pump, which is related to Volts and Amps
3. Flow capacity in gallons per minute or gallons per hour
4. Pressure ability defined in pressure (pounds per square inch or psi) or in feet of head. 1 psi = 2.31 ft of head when pumping water.
A grinder pump is usually used for sewage; not for a sump pump to pump out infiltrating water.
The grinder pump should only be operating intermittently. A typical household uses only about 250 gallons per day of water that goes into the sewer and a grinder pump will typically pump 20 gallons per minute, so it should only be operating less than 15 minutes per day; maybe 30 minutes maximum.
You should find the make and model number of the pump and determine the GPM and head (pressure) that it is rated for. You should also determine the Amps of electrical current required.
The rated head, usually specified in feet, should be substantially more (at least 2 times) the difference in height between the sump and the sewer to which it is pumping. If it is a pressure sewer (unusual), the pump has to deliver enough head to pump into the pressure sewer. If the pump has inadequate head capacity, it will never pump out all of the sewage.
The circuit wiring and the circuit breaker should usually be sized to at least 2 times the nameplate Amps on the pump. If the circuit breaker amps are near or less than the pump Amp rating, the breaker may trip on startup.
There should be a check valve in the discharge line, or included in the pump, to prevent backflow into the pump. Without a checkvalve, some of the discharged sewage will flow back and the pump will have to run more frequently. The check valve is between the pump and the sewer or septic system.
Now to the problem.
You could have a pump that requires more current than the circuit breaker can deliver.
You could have a pump that delivers inadequate head (pressure) to pump out the collector basin. If you have that, the pump will have to run a long time and may never pump it out.
Hair should not plug a grinder pump. A good grinder pump should be able to grind up a diaper (but you shouldn't test it with a diaper).
Compare the Amp rating of the pump with the circuit breaker rating. It is possible that someone replaced the pump with a larger one and the circuit and breaker may be inadequate.
It is possible that a grinder pump is jammed and difficult to turn. That will cause an overload that will trip the breaker.
When we find the make and model of the pump, we can be sure that it is a grinder. Someone may have replaced a grinder pump with a sewage ejector pump (cheaper) that is not a grinder. An ejector pump is more easily plugged.
When you get information on the pump model and amps, and circuit breaker amps, come back and tell us. We may be able to give you more ideas.