ATW-4 explosion-proof coupler

ATW-4 explosion-proof coupler
product description
Material Cast Aluminum
Has good moisture, dust and impact resistance
Dimensions 164 * 152 * 120
Explosion-proof sign
Explosion-proof mark ExdibllCT4
Protection class IP65
Electrical index
Input voltage AC220 / 50Hz
Maximum open-circuit DC voltage 60V
DC short-circuit current 50mA
Maximum open circuit voltage 60V
Maximum short-circuit current of bell current 30mA
User line distributed capacitance ≤0.1Mf / km
User line minimum insulation resistance 20kΩ
Product Features
Associated equipment coupler adopts flameproof structure, one end is connected to the telephone, and the other end is connected to the telephone line or switch.
The input terminal fails to meet the current and voltage values of the intrinsically safe circuit, and protection measures such as current limiting and voltage limiting are given so that the electrical specifications of the input intrinsically safe telephone set meet the technical requirements of the intrinsically safe circuit.
The maximum distance to connect with the phone 10KM
2-core cable with one end connected to a telephone and the other end connected to a telephone line or switch