| Main circuit | Rated working voltage | 380V（440V） | Auxiliary circuit | Rated working voltage | 380V |
| Rated working current | 32A, 63A, 100A | Rated working current | 2.5A | ||
| Agreed heating current | 32A, 63A, 100A | Agreed heating current | 10A | ||
| Usage category | AC-2 | Usage category | AC-15 | ||
| Electrical lifespan | 75000 times | Electrical lifespan | 1 million times | ||
| Rated insulation voltage | 500V | Handle operating force | Not exceeding 50N | ||
| Rated operating frequency | 600 times/h | Maximum number of control gears | 6 | ||
| Mechanical life | 1.5 million times | Maximum number of control loops | 17（21） | ||
KTJ15A cam controller
Standards
- GB 14048.1 General Rules for Low – voltage Switchgear and Controlgear
- GB 14048.5 Low – voltage Switchgear and Controlgear – Part 5 – 1
- JB/T 6748 Crane Control Consoles
Scope of Application
The KTJ series of AC cam controllers are applicable to main circuits with an alternating current frequency of 50 Hz (60 Hz) and a rated operating voltage of 380 V (440 V) or less. They are used to change the resistance value in the stator circuit of wound – rotor motors, thereby controlling the starting, speed regulation, operation, and reversing of the motors.
Structural Features
Among the products in this series, the KTJ15A series of AC cam controllers are developed on the basis of the KTJ15 series of AC cam controllers, which were designed through a national unified design project organized by the former Ministry of Machinery Industry with our company’s participation. Based on the advantages of our company’s contacts and the actual usage conditions of users, the internal contact structure has been improved. This makes the structure more reasonable, extends the service life, and enhances the reliability of the product while keeping the external dimensions unchanged.
The KTJ17 series of AC cam controllers are products that have been optimized based on the KTJ15A series of AC cam controllers. At the same time, the height of the product has been effectively reduced, making the operation more comfortable.
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