01
SEV300AH High Voltage Epoxy Resin Sealed DC Contactor
FEATURES
Suitable for switch control of new energy electric vehicles, charging facilities, photovoltaics, wind power generation systems, automotive air conditioners, communication power supplies, UPS power supplies and other electrical control circuits. This product has the characteristics of small size, large load capacity, no sparks, long service life and simple maintenance, and is deeply loved by users.
1. DC high-voltage power supply: The product cavity is filled with rare mixed gases and has good arc cooling capabilities.
2. Control load capacity: Supports 30A-1000A, and the operating voltage range is 5-1000VDC.
3. Safety: Using insulating structure, it can work in flammable or hazardous environments, and the coils and contacts will not be oxidized or polluted.
4. Small size, light weight, low power consumption: Compared with similar products, it has obvious advantages.
This product complies with JB2286-78, JB3974-85, YD/585-92, YD/T512-92 and other standard requirements; after inspection by the factory and relevant testing units, it conforms to the standard specifications. It has been used by users for many years to meet user needs to the greatest extent. The quality reliable.
SAYOON MODEL IMPLICATION
SEV |
300 |
A |
H |
X |
L |
-□ |
■ |
/12V |
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
1 |
Product type | ||||||||
2 |
Rated current | ||||||||
3 |
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) | ||||||||
4 |
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 | ||||||||
5 |
Coil outgoing mode: X-Wire (390mm); P-Spade terminals (4.8); W-Thread (M4); O-Other | ||||||||
6 |
Mounting bracket type: L-Vertical (default) | ||||||||
7 |
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 | ||||||||
8 |
Other special functions: V-With capacitive type load; N-No polarity | ||||||||
9 |
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 |
SEV300AH |
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) | 300A |
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 |
SEV300AH |
U.N.W. | 409g |
Mounting bracket type | L Vertical(default) |
When placing your order, please provide the following information: name, complete model number, control coil voltage specification, mounting frame type, whether auxiliary contacts are required and order quantity. For example: HV DC contactor SEV200AH-□-□/24V 100 pieces, which means the rated load current is 200A, no auxiliary contacts, the default installation bracket, the control coil voltage is 24V, and the purchase quantity is 100 pieces. For products with special voltage specifications, special orders can be made if necessary.
certificate
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CE2
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CCC
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RoHS
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FCC
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CE
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