JX series signal relayDetailed product description：

Purpose:
JX series signal relays are used in DC operation protection circuits as signal indicators. Relays are operated by current or voltage, light signals, magnetic holding, manual or electrical resetting. Good reliability, can replace existing electromagnetic signal relays such as DX-11, DX-11A series, DX-8, DX-8G series, DXM-2A series, DX-30 series, etc.

Relay model name:
Example: The order code for a signal relay with an embedded plug-in structure, auxiliary DC working voltage of 110V, and rated current of 0.5A is JX-31-0.5A-DC110V.



Working Principle:
The relay is composed of optoelectronic coupling and resistance devices to form a sampling and detection circuit. When the measured signal reaches a certain value, the optocoupler is turned on, and the signal is amplified by an operational amplifier to drive the output circuit of the subsequent stage, causing the output relay to act. And it is self held by the self holding circuit. After the start circuit signal disappears, the relay is still in the operating state. The relay can only return after pressing the reset button or applying a reset voltage at the reset terminal.



Main technical parameters:
4.1 Voltage type relay
a) Rated DC voltage: 12V, 24V, 48V, 110V, 220V;
b) Auxiliary DC working voltage: 48V, 110V, 220V.
4.1.1 The action value of the relay shall not exceed 70% of the rated value.
4.2 Current type relay
a) Universal type: action current 0.02A-2A universal;
b) Rated type: Rated operating current 0.01A, 0.025A, 0.05A, 0.075A, 0.1A, 0.25A, 0.5A, 0.75A, 1A, 2A, 4A.
c) Auxiliary DC working voltage: 48V, 110V, 220V.
4.2.1 The operating current of the relay shall not exceed 90% of the rated value. For relays with specifications of 0.01A-1A, the maximum allowable current is 2A, and for relays with specifications of 4A, the maximum allowable current is 5A. At the maximum current, the starting circuit voltage drop of the relay shall not exceed 2V.
b) AC circuit: Under the conditions of current not exceeding 1A and voltage not exceeding 250V, the external output contact can disconnect the load of the circuit with a power factor coso of 0.4 ± 0.1 at 250VA.
4.3 Action time
The relay action time shall not exceed 15ms.
4.4 Power consumption
Power consumption of relay DC circuit:
220V: The power consumption before the action is not more than 2W, during the action (when the signal has not disappeared) is not more than 7.5W, and after the action (after holding), the power consumption is not more than 4W;
110V: Before the action, the power consumption should not exceed 1.5W. During the action (when the signal is not lost), the power consumption should not exceed 5W. After the action (when holding), the power consumption should not exceed 2.5W;
48V: The power consumption before the action is not more than 0.5W, during the action (when the signal has not disappeared) is not more than 3.5W, and after the action (when holding) is not more than 1.5W;
Power consumption of starting circuit: For voltage type relays, the power consumption should not exceed 2W, and for current type relays, the voltage drop of the starting circuit should not exceed 1.7V at rated current.
4.5 Contact breaking capacity
a) DC circuit: Under the conditions of current not exceeding 2A and voltage not exceeding 250V, the external output contact can disconnect a DC inductive load of 30W with a time constant of 5ms ± 0.75ms.
b) AC circuit: Under the conditions of current not exceeding 1A and voltage not exceeding 250V, the external output contact can disconnect the load of the circuit with a power factor coso of 0.4 ± 0.1 at 250VA.
4.6 Working conditions
a) The usage location does not allow explosive media, and the surrounding media should not contain corrosive metals, gases that damage insulation, or conductive media. It is not allowed to be filled with water vapor or have serious mold presence;
b) Strong vibrations and impacts are not allowed in the usage location;
c) The usage location should have facilities to defend against rain, snow, wind, and sand;
The usage location does not allow an external magnetic induction intensity exceeding 1.5mT.
4.7 Dielectric strength: Each conductive circuit of the relay should be able to withstand 2kV (effective value) between the exposed non charged metal parts and the shell, and the input circuit should be able to withstand 1kV (effective value) between the contacts, 50Hz AC test voltage, for 1 minute of testing, and there should be no insulation breakdown or flashover phenomenon.
4.8 Electrical anti-interference relays shall comply with GB7261 and GB6261 "Electrical anti-interference test for emergency protection devices of static relays".

Wiring diagram behind the relay:
3.1JX-11 signal relay (substitute DX-11)
3.1.1 Rear wiring diagram of relay (see Figure 1).
3.1.2 The appearance and installation dimensions of the relay are shown in Figure 2 of the universal structural system.
3.2 JX-21A (DX-8), JX-21B signal relay (DX-8G, DXM-2A).
3.2.1 Rear wiring diagram of relay (see Figure 2). 3.2.2 The appearance and installation dimensions of the relay are shown in Figure 5 of the general structural system.
3.3 JX-31 Signal Relay (Generation DX-30).
3.3.1 Rear wiring diagram of relay (see Figure 3).



Relay external dimensions and opening dimensions:
The appearance and installation dimensions of the relay are shown in Figure 6 of the universal structural system.

Ordering instructions:
5.1 Product model, name, specifications and rated values of relay auxiliary power supply (refer to Articles 3 and 4).
5.1 Order quantity.

JX series signal relay（No image available）