purpose
The CX series flash relay is used as a starting relay for signal indicator lights in power plants, substations, and other automatic control circuits. The high sensitivity performance of starting current ≤ 1mA makes it applicable to energy-saving LED signal lights and neon signal lights, and the load capacity of up to 5A can also be applied to traditional incandescent signal lights.
characteristic
○ High sensitivity: Over dynamic current ≤ 1mA.
○ Large load: maximum current of 5A.
○ High reliability and long lifespan: Key electronic components such as integrated circuits are imported from well-known brands. There are protective measures in place, and reversing the polarity of the power supply will not damage the relay. The flash life is 100000 times.
○ Stable flashing frequency: The flashing small bus flashes immediately when it is negatively charged, and the flashing frequency does not change with the size of the load or voltage. The duty cycle of the signal light on and off is approximately 1:1, and the dark current is less than 1.5mA, with obvious brightness and darkness.
○ Strong adaptability: Neon signal lights, LED signal lights, and incandescent signal lights can all be used.
Working principle explanation
The CX series high-sensitivity integrated circuit flash relay consists of an integrated circuit that forms a high-sensitivity starting circuit and a frequency stable electronic oscillator. The flash small bus flashes immediately when it is negatively charged. The output circuit is composed of small high-power relays, with a contact capacity of 5A at AC250V. The clever design in the circuit prevents arcing at the relay contacts, extending their service life. Equipped with protective measures, reversing the polarity of the power supply will not damage the relay.
Model Comparison Table
|
model |
Exterior structure |
Equivalent substitute model |
Old product factory |
|
CX-1 |
CL10 |
DX-3 |
Aji, Shangji |
|
CX-3 |
A22K |
DX-1 |
Xu Ji, Su Ji |
|
CX-20 |
JK-1 |
DX-9 |
Aji |
|
CX-30 |
A11K |
DX-16 |
Xu Ji |
Main technical parameters of CX series high-sensitivity integrated circuit flash relay
○ Rated voltage: DC 220V, 110V, 48V, allowable operating voltage: 80% -115% Ue, ○ DC power supply voltage ripple factor not exceeding 20% (AC working products can be provided, please specify when ordering)
○ Starting current ≤ 1mA.
○ Flash frequency: 55-65 times/minute
The duty cycle of light and dark is 1:1, with an error of ± 0.2. When dark, the current through the signal light is less than 1.5mA.
○ Contact capacitance:
DC type: In an inductive load circuit with a DC voltage not exceeding 250V and a time constant of 5ms, each circuit is connected and disconnected by 5A.
AC type: AC voltage not exceeding 250V, COS φ=1, connected and disconnected 5A.
○ Power consumption of the power supply (at rated voltage)
| Condition/Voltage |
220V |
110V |
48V |
| Before the action |
≤1.6W |
≤0.8W |
≤0.4W |
| After the action |
≤6.5W |
≤3.5W |
≤1.5W |
Structure, Terminal and Internal General Wiring Diagram
 |
| CX-1 |
CX-3 |
CX-20 |
CX-30 |
|
Internal wiring diagram of flash relay (front view) |
CX series high-sensitivity integrated circuit flash relay