Schneider MT50HA Contactor
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||

Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Schneider Electric |
| Model | MT50HA |
| Product Type | Contactor |
| Product Series | MasterPact MTZ3 50 HA |
| Rated Operational Current | 5000 A |
| Rated Operational Voltage | 690 V AC |
| Rated Insulation Voltage | 1000 V AC |
| Rated Impulse Withstand Voltage | 12 kV |
| Rated Frequency | 50/60 Hz |
| Number of Poles | 4P |
| Performance Level | HA |
| Rated Short-Circuit Making Capacity (Icm) | 187 kA peak |
| Rated Short-Time Withstand Current (Icw) | 85 kA / 1 s; 85 kA / 3 s |
| Rated Ultimate Breaking Capacity (Icu) | 85 kA |
| Rated Service Breaking Capacity (Ics) | 85 kA |
| Utilization Category | AC-23A / AC-3 |
| Isolation Function | Yes |
| Contact Position Indicator | Yes |
| Visible Break | No |
| Operating Mechanism | Push-button |
| Mounting Type | Fixed |
| Maximum Operating Frequency | 10 cycles/hour |
| Mechanical Endurance | 10,000 cycles with periodic preventive maintenance |
| Electrical Endurance | AC-23A: 1,500 cycles at 440 V / 690 V AC |
| Connection Pitch | 230 mm |
| Protection Rating | IP30 |
| Pollution Degree | 4 |
| Operating Temperature | -25 to +70°C |
| Storage Temperature | -40 to +85°C |
| Applicable Standard | EN/IEC 60947-3 |
| Dimensions | 997 × 352 × 297 mm |
| Weight | 160 kg |
FAQ
1. What is the main function of the Schneider MT50HA Load Switch?
The Schneider MT50HA is a high-current switch disconnector from the MasterPact MTZ3 50 HA range. It is designed for industrial low-voltage power distribution systems where reliable circuit switching and electrical isolation are required. The device allows operators to connect or disconnect electrical circuits under specified operating conditions and provides an isolation function for maintenance activities. It is suitable for large distribution panels and demanding industrial power applications. It should not be confused with a conventional contactor or a circuit breaker with integrated overload protection.
2. What are the rated current and voltage specifications of the MT50HA?
The MT50HA has a rated operational current of 5000 A and a rated operational voltage of up to 690 V AC. Its rated insulation voltage is 1000 V AC, while its rated impulse withstand voltage is 12 kV. These specifications make it suitable for high-capacity industrial power distribution applications. During equipment selection, engineers should also evaluate load characteristics, short-circuit conditions, upstream protection coordination, and the electrical requirements of the complete installation.
3. What does the HA performance level mean for the MT50HA?
HA identifies the performance level of this MasterPact MTZ3 switch disconnector. The MT50HA has a rated short-circuit making capacity of 187 kA peak and a rated short-time withstand current of 85 kA for 1 second or 3 seconds. These characteristics are important when evaluating the device for high-current distribution systems. The HA designation should always be considered alongside the rated voltage, current, utilization category, and system protection design to ensure correct application.
4. What is the difference between the MT50HA load switch and a standard air circuit breaker?
A load switch or switch disconnector is primarily designed to switch electrical circuits under specified load conditions and provide isolation. A standard air circuit breaker can also provide protection against overloads and short circuits through its protection system. Although both devices may be installed in industrial distribution switchboards, their functions are different. The MT50HA should be selected according to its switch-disconnector ratings, while the required fault protection must be provided by an appropriate protection device within the electrical system.
5. Is the Schneider MT50HA compatible with both 50 Hz and 60 Hz systems?
Yes. The MT50HA is designed for AC electrical systems operating at 50 Hz or 60 Hz. This frequency compatibility makes it suitable for various industrial power distribution environments. However, frequency compatibility alone does not determine whether the device is suitable for a particular installation. The rated voltage, connected load, short-circuit level, utilization category, and applicable electrical standards must also be checked before installation and commissioning.
6. What should be inspected if the MT50HA fails to operate correctly?
If the MT50HA cannot complete a switching operation, begin by inspecting the operating mechanism and checking for mechanical obstructions or abnormal resistance. Verify that the relevant interlocks and operating conditions are correct. The switchboard connections should also be inspected for loose terminals, overheating, damaged insulation, or other signs of abnormal operation. Never force the mechanism when it fails to operate normally. Troubleshooting and repair should be performed by qualified electrical personnel after the equipment has been safely isolated.
7. Can the MT50HA be used for electrical isolation during maintenance?
Yes. The MT50HA provides suitability for isolation in accordance with EN/IEC 60947-3. It also includes a contact position indicator to help operators identify the operating state of the switch. However, it does not provide a visible break indication. Therefore, the position indicator alone must not be treated as proof that a circuit is electrically safe. Before maintenance, personnel must follow the required lockout/tagout procedures and verify the absence of voltage using an appropriate testing instrument.
8. What maintenance practices help extend the service life of the MT50HA?
Regular preventive maintenance is essential for maintaining reliable operation in high-current applications. Inspection should cover the operating mechanism, electrical connections, contact condition, insulation components, and signs of overheating or mechanical wear. The specified mechanical endurance is 10,000 cycles with periodic preventive maintenance under the applicable standard. Actual service life depends on switching frequency, load conditions, operating environment, and maintenance quality. All servicing should follow Schneider Electric’s technical instructions and the maintenance procedures established for the switchboard.
Schneider MT50HA Contactor is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.








