The mechanical life of Chint CJX2-5011 AC contactor is 10 million times (i.e., 10 million operating cycles).
Detailed Explanation
The mechanical life of Chint CJX2-5011 AC contactor refers to the maximum number of contact closing and opening operations it can complete under no-load conditions. This parameter reflects the durability of the contactor’s mechanical structure and is a key indicator for evaluating its service life.
According to Chint’s official product data and authoritative electrical product databases, the mechanical life parameters of CJX2 series contactors are shown in the table below:
| Model Range | Mechanical Life (10,000 cycles) |
| CJX2-09~32 | 1000 |
| CJX2-40~65 | 1000 |
| CJX2-80~95 | 800 |
CJX2-5011 falls into the CJX2-40~65 model range, so its mechanical life is 10 million times.
Supplementary Relevant Parameters
In addition to mechanical life, other key technical parameters of CJX2-5011 are as follows:
Electrical Life (under AC-3 application category): 600,000 cycles
Rated Current: 50A (under AC-3 application category at 380V)
Auxiliary Contacts: 1 set of Normally Open (NO) + 1 set of Normally Closed (NC) (indicated by the suffix “11” in the model)
Operating Frequency: 1,200 operations per hour
Application Significance
A mechanical life of 10 million times means that even in an industrial environment with frequent operations (e.g., 1,000 operations per day), this contactor can theoretically be used for approximately 27 years without mechanical failures, which is an important reflection of its high reliability.
