Industrial AC Vacuum Contactor 2.5kA 1140V 250A Contactor For Industrial Applications
Price:
$300
MOQ:
1 piece
Delivery Time:
20 days
Brand:
MacweyTEK
Product Description
Vacuum Contactor VK49-1.14-2.5250 AC Contactor with 250A 2.5kA 1140V for Industrial Applications
High-performance vacuum contactor model VK49-1.14-2.5250 rated at 250A, 2.5kA breaking capacity, and 1140V operation.
Product Overview
This series contactor consists of an electrical insulating frame, metal base, shaft and crank arm, electromagnetic systems, permanent magnet, power modules, auxiliary switches, and vacuum interrupters.
Operating Principle
When control voltage is applied to the electromagnetic coil, the armature drives the crutch rotating to open the main contact in the vacuum interrupter. The auxiliary switch simultaneously cuts off power to the electromagnetic coil, transitioning to permanent-magnet maintenance. After power is interrupted by the control circuit, energy storage from the power module discharges to the electromagnetic coil for degaussing, and the main contact opens under the function of the opening spring.
Normal Operating Conditions
- Environment temperature: -5°C to +40°C, with 24-hour average not exceeding +35°C
- Altitude: No more than 1000m
- Atmospheric conditions: Monthly highest humidity ≤90% in wettest month, monthly average minimum temperature 25°C
- Impact vibration: Location without extensive shaking, impact, or vibration
- No explosion hazards, enchant gas, or sleet
- No rain and snow in installation area
- Pollution degree: Grade 3
- Installation type: III
- Installation condition: Slant angle between installation surface and vertical surface ≤15°
Technical Specifications
KVT-6 Series (6-7.2kV)
| Item | Unit | KVT-6-1.6/160 | KVT-6-2.5/250 | KVT-6-4/400 | KVT-6-6.3/630 |
|---|---|---|---|---|---|
| Contact Group | quantity | 3+3p (3NO+3NC) | |||
| Main Circuit Rated Voltage | kV | 6-7.2 | |||
| Main Circuit Rated Current | A | 160 | 250 | 400 | 630 |
| Rated Breaking Current (Ics) | kA | 1.6 | 2.5 | 4 | 6.3 |
| Main Circuit Current Making Capacity | A/100 times | 1600 | 2500 | 4000 | 6300 |
| Main Circuit Make-Break Capacity | A/25 times | 1280 | 2000 | 3200 | 5000 |
| Maximum Breaking Capacity | A/3 times | 3200 | 3200 | 4000 | 6300 |
KVT-10 Series (10-12kV)
| Item | Unit | KVT-10-1.6/160 | KVT-10-2.5/250 | KVT-10-4/400 | KVT-10-6.3/630 |
|---|---|---|---|---|---|
| Contact Group | quantity | 3+3p (3NO+3NC) | |||
| Main Circuit Rated Voltage | kV | 10-12 | |||
| Main Circuit Rated Current | A | 160 | 250 | 400 | 630 |
| Rated Breaking Current (Ics) | kA | 1.6 | 2.5 | 4 | 6.3 |
| Main Circuit Current Making Capacity | A/100 times | 1600 | 2500 | 4000 | 6300 |
| Main Circuit Make-Break Capacity | A/25 times | 1280 | 2000 | 3200 | 5000 |
| Maximum Breaking Capacity | A/3 times | 3200 | 3200 | 4000 | 6300 |
General Specifications
| Mechanical Life | times | 1,000,000 | |
| Power Frequency Withstand Voltage (Main Circuit) | kV | 32 (6kV series) | 42 (10kV series) |
| Power Frequency Withstand Voltage (Auxiliary) | kV | 2.5 | |
| Power Frequency Withstand Voltage (Control) | kV | 2 | |
| Rated Operating Frequency | times/h | 300 | |
| Opening Time | ms | ≤120 | |
| Closing Time | ms | ≤150 | |
| Clearance Between Open Contacts | mm | 4±0.5 (6kV series) | 5±0.5 (10kV series) |
| Over Travel | mm | ≥1.2 | |
| Overall Dimensions (L×H×B) | mm | 468×540×200 | |
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Ningbo Macwey Industrial Technology Co.,Ltd
Location
No.218, Weier Road, Chongshou Industrial Park, Cixi City (Ningbo), China
Contact Person
Alec Sung