Enhanced contact reliability: The auxiliary contact can exert pressure on the main contact to ensure good contact between the main contact and the contact, reducing the contact loosening or poor contact caused by vibration or other external factors.
Increase contact life: The presence of auxiliary contacts can reduce the arc and ablation of the contact when it is on and off, thus extending the service life of the contact.
Improve the breaking ability of the contactor: By increasing the contact area, the auxiliary contact can reduce the temperature rise of the contact and improve the breaking ability of the contactor, making it more suitable for high current or high load application scenarios.
Auxiliary arc protection: Auxiliary contacts through special design, such as increasing the distance between contacts or the use of insulation materials, can effectively reduce the generation of arc, protect the contactor and related equipment.
Control three-phase AC: auxiliary contacts can be used to control the three fire lines of three-phase AC to achieve self-locking, interlocking and other functions, and combine with other circuits that need to be controlled at the same time.
Expand the number of contacts and current capacity: By connecting in parallel or in series, auxiliary contacts can increase the number of contacts of the contactor and carry more current, providing greater switching capability.
Achieve a variety of control methods: through different combinations and connections, auxiliary contacts can achieve parallel system, series system, reverse control, interlock control and other control methods.
Reduce the load on the main contact: When the main contact is worn due to frequent switching, the auxiliary contact can help divide the current, reduce the load on the main contact, and extend the service life of the contactor.
LA2-D time delay auxiliary contact blocks are combined with LC1-D AC contact & LA1-D auxiliary contact block into be LC3-D star-delta reduced voltage starter to start motor.
| Type | Delay range | Number of the delay contacts |
| LA2-DT0 LA2-DT2 | 0.1-3s 0.1-30s | |
| LA2-DT4 LA2-DRS | 10-180s 0.1-30s | NO+NC |
| LA2-DR4 LA2-DR2 | 10-180s 0.1-3s |
Enhanced contact reliability: The auxiliary contact can exert pressure on the main contact to ensure good contact between the main contact and the contact, reducing the contact loosening or poor contact caused by vibration or other external factors.
Increase contact life: The presence of auxiliary contacts can reduce the arc and ablation of the contact when it is on and off, thus extending the service life of the contact.
Improve the breaking ability of the contactor: By increasing the contact area, the auxiliary contact can reduce the temperature rise of the contact and improve the breaking ability of the contactor, making it more suitable for high current or high load application scenarios.
Auxiliary arc protection: Auxiliary contacts through special design, such as increasing the distance between contacts or the use of insulation materials, can effectively reduce the generation of arc, protect the contactor and related equipment.
Control three-phase AC: auxiliary contacts can be used to control the three fire lines of three-phase AC to achieve self-locking, interlocking and other functions, and combine with other circuits that need to be controlled at the same time.
Expand the number of contacts and current capacity: By connecting in parallel or in series, auxiliary contacts can increase the number of contacts of the contactor and carry more current, providing greater switching capability.
Achieve a variety of control methods: through different combinations and connections, auxiliary contacts can achieve parallel system, series system, reverse control, interlock control and other control methods.
Reduce the load on the main contact: When the main contact is worn due to frequent switching, the auxiliary contact can help divide the current, reduce the load on the main contact, and extend the service life of the contactor.
LA2-D time delay auxiliary contact blocks are combined with LC1-D AC contact & LA1-D auxiliary contact block into be LC3-D star-delta reduced voltage starter to start motor.
| Type | Delay range | Number of the delay contacts |
| LA2-DT0 LA2-DT2 | 0.1-3s 0.1-30s | |
| LA2-DT4 LA2-DRS | 10-180s 0.1-30s | NO+NC |
| LA2-DR4 LA2-DR2 | 10-180s 0.1-3s |
