DZ-500Q overload relayDetailed product description：

The DZ-500Q series intermediate relay is used in DC voltage to 220V protection and automatic control circuits to expand the control range and improve contact capability.

Overview of Structure 2
2.1 The DZ-500Q series intermediate relay adopts embedded installation, and the main body of the relay is a plug-in structure.
The main body of the DZ-500Q series intermediate relay is the same as that of the DZ-500 series intermediate relay.
The internal wiring diagram of the DZ-500Q series intermediate relay is shown in Figure 1.
The appearance and installation diagram of the intermediate relay in the DZ-500Q series are shown in Figure 2.


Figure 1 Internal wiring diagram of DZ-500Q series intermediate relay
According to this, DZ-501Q DZ-502Q DZ-503Q DZ-504Q DZ-505Q

Figure 2: Outline and Installation Dimensions of DZ-500Q Series Intermediate Relays

3 Technical data
3.1 The classification of relay models and specifications is shown in the table below.

rated voltage	Specification Model	Number of contact points
		Dynamic combination	Dynamic interruption	transformation
24，48， 110，220	DZ-501Q	two	0
	DZ-502Q	0	0	two
	DZ-503Q	two	0	two
	DZ-504Q	0	0	four
	DZ-505Q	six

3.2 The gap and contact pressure between relay contacts shall comply with the following regulations
3.2.1 The gap between contacts shall not be less than 0.9mm.
3.2.2 The contact pressure of the dynamic breaking contact should not be less than 15cN.
3.2.3 The contact pressure of the dynamic contact point should not be less than 25cN.
When the temperature of the surrounding medium is+20 ℃± 5 ℃, the operating voltage of the relay shall not exceed 70% of the rated voltage.
3.4 The operating time of electrical appliances at rated voltage should not exceed 0.04 seconds.
3.5 The breaking capacity of relay contacts
3.5.1 In a DC circuit, when the voltage does not exceed 250V and the current does not exceed lA, and there is an inductance (time constant not greater than 5 × 10-3S), the breaking power of the contacts is 50W.
3.5.2 In an AC circuit, when the voltage does not exceed 250V and the current does not exceed 2.5A, and the power factor is not less than 0.8, the breaking power of the contacts is 500VA.
When the relay is in the closed position, it should be able to flow 5 amperes for a long time, and the temperature rise of the contacts should not exceed 60K.
3.6 When the temperature of the surrounding medium is 20 ℃+5 ℃ and the relative humidity is 65 ± 15%, the coil and conductive parts of the relay are connected to the yoke and iron
The insulation resistance of the core should not be less than IOOM Ω.
When the temperature of the surrounding medium is+40 ℃, the coil of the relay should be able to withstand 110% of the rated voltage for a long time, and its temperature rise should not exceed 65k.
The coil and all conductive parts of the relay should be able to withstand AC 50Hz, 2kV, and a test voltage of 1min for the dielectric strength of the iron core and yoke. There should be no breakdown or flashover phenomenon.
At rated voltage, the power consumption of the relay shall not exceed 3W.
3.10 Relays should be able to withstand 106 closures and 106 disconnections at rated voltage, with the first 105 closures and 105 disconnections
The contacts should be operated under the power allowed for closing and opening in Article 3.5 without the need for additional adjustment. In the future, the contacts should be operated without load during 9 × 105 closing and 9 × 105 opening. After the test is completed, the relay's operating time can be increased to 0.05s, and the temperature rise of the contacts should still comply with the provisions of Article 3.5.3.

4 Ordering Instructions
4.1 Relay name, model, and quantity.
4.2 Rated voltage and current of relay.
4.3 The coil resistance is the same as the DZ-500 series.

DZ-500Q overload relay（No image available）