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SEV250AH High Voltage Epoxy Resin Sealed DC Contactor
FEATURES
1. DC high-voltage power supply: The product is filled with rare mixed gases and has excellent arc cooling capabilities to ensure safe operation in high-voltage environments.
2. Control load capability: Supports loads from 30A to 1000A, and the operating voltage range is 5-1000VDC, adapting to a variety of application needs.
3. Safety: Using an insulating structure, it can work safely in flammable or hazardous environments. The coils and contacts will not be oxidized or contaminated, ensuring the long-term stability of the equipment.
4. Small and lightweight: Compared with similar products, it is smaller, lighter, and consumes less power, making it easy to install and use.
This product complies with JB2286-78, JB3974-85, YD/585-92, YD/T512-92 and other standard requirements. It has been inspected by the factory and relevant testing units to ensure that it meets the standard specifications. Users can use it with confidence and meet the maximum satisfaction for a long time. User needs, reliable quality.
Application areas
- Electric vehicles
- Solar power generation system
- Energy storage system
- Industrial automation equipment
- Ships and rail transportation
The SEV250AH high-voltage epoxy resin sealed DC contactor is an ideal choice for your high-voltage applications. With its excellent performance and reliability, it helps your equipment operate efficiently and safely.
SAYOON MODEL IMPLICATION
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SEV |
250 |
A |
H |
X |
L |
-□ |
■ |
/12V |
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Product type | ||||||||
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Rated current | ||||||||
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Circuit structure: A-Normally open; B-Normally closed; F-Normally open with one auxiliary switch (the auxiliary switch and main contact have the same structure); G-One normally closed with one auxiliary (auxiliary switch and main contact have the same structure). (for other auxiliary switch structures, add 2 or 3 numbers after the model to describe the auxiliary switch structure) | ||||||||
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Coil type: D-Single coil; H-With coil economizer; K-Two joint magnetic retention (Single coil, Two joint self-locking); 2K-Three joint magnetic retention (Double coil, Three joint self-locking); P-Signal control | ||||||||
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Coil outgoing mode: X-Wire (390mm); P-Spade terminals (4.8); W-Thread (M4); O-Other | ||||||||
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Mounting bracket type: L-Vertical (default) | ||||||||
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None: Auxiliary switch and main contact have the same structure (default); -2: The structure of auxiliary switch and main contact is opposite; -3: Special auxiliary switch structure | ||||||||
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Other special functions: V-With capacitive type load; N-No polarity | ||||||||
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Coil rated voltage: 12V, 24V, 48V, 9-36V, 48-72V etc. | ||||||||
USES
The utility model has the advantages that the utility model is provided with one normally open contact, which is suitable for charging piles, electric four wheeled vehicles, new energy vehicles, energy saving and environmental protection systems, road traffic lighting systems, programmable power supply and uninterruptible power supply equipment.
TECHNICAL PARAMETERS: (Version 2.82)
| SAYOON Product Type | SEV250AH |
| Contact form | 1 NO(SPST-NO) or 1NC(SPST-NC) |
| Coil Rated voltage (DC V) | 12-24V, 36-48V, 60-72V, 9-36V etc. |
| Contact voltage (DC V) | 5-1000V |
| Contact circuit rated load current (DC-1) | 250A |
| Typical voltage drop across contacts per 100A | ≯80mV |
| The cooling pull-in voltage at (20±5)℃ (V) | ≯70% |
| The cooling drop-out voltage at (20±5)℃ (V) | ≯35%,≮5% |
| Working voltage range of 40℃ coil | 0.8-1.2Us |
| Drop-out time (n/o contacts to open) | 80ms |
| Pull-in time (n/o contacts to close) | 20ms |
| Maximum bounce time for contact connection | 10ms |
| Maximum bounce time for contact disconnection | 7ms |
| Insulation Resistance | 100MΩ |
| Electric strength to resist | 50Hz/60Hz 2200VAC 1minute |
| Typical fault currents which can be ruptured | 1000A/5ms at 48V DC |
| Coil power (W) | H: Start 30-50, Keep 1.5-5 |
| Temperature rise of coil (K) | ≤45 |
| Temperature rise on outgoing terminal (K) | ≤65 |
| Electrical life | 20,000 times |
| Mechanical life | 300,000 times |
| Work specification | Continuous |
| Contact material | Alloy |
| Inrush time (max) | 130ms |
| Maximum switching current | 2000A 320VDC (more than once) |
| Maximum switching power | 640kW |
| Load terminal type | M8 Screw |
| Coil terminal type | 0.3 square silicone wire, 390mm long |
| Auxiliary contact rated load (optional) | 3A/30VDC |
| Testing organization certification | CCC, CE, FCC, RoHS |
Note: As regarding to the different using environments of customers which requires different focus of the functions, and in order to improve the comprehensive properties of our products, sayoon may adjust the coil parameters, temperature rise and so on. The above parameters are for reference only, For details, please refer to the guidelines for selection and use of the SAYOON DC contactor.
LOAD CHARACTERISTIC CURVE
INSTALLATION DIAGRAM
WIRING DIAGRAM
COIL TEMPERATURE CURVE
MECHANICAL ABILITY and USE of the ENVIRONMENT
| Contact lead M8 tightening torque (N.m) | ≯9.0 appropriate |
| Coil lead mode | Wire dipping tin (red positive and black negative) |
| Ambient temperature | -40~+85℃ |
| Relative humidity | +20℃ 98% |
| Vibration freq. atthe fixed position | 3G, 1～50Hz amplitude 0.5mm |
| Concussion | (60～100) time/minute、acceleration≤4g |
| Altitude | 2000m |
| Installation direction | Random |
| International Protection | IP68 |
ORDER INSTRUCTION
| SAYOON Product Type | SEV250AH |
| U.N.W. | 409g |
| Mounting bracket type | L Vertical(default) |
When ordering, please state the following: name, full model, control coil voltage specification, installation frame type, whether with auxiliary contact, order quantity. For example: HV DC Contactor SEV200AH-□-□/24V 100pcs, indicating the load rated current 200A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.
certificate
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CE2 -
CCC -
RoHS
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FCC -
CE -
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