DZ-500T series intermediate relayDetailed product description：

Application of DZ-500T series intermediate relay
The DZ-500T series intermediate relay (hereinafter referred to as the relay) is used in DC to 220V protection and automatic control circuits to expand the control range and improve contact capability.

Structure and principle of DZ-500T series intermediate relay
The action of a relay is generated based on electromagnetic principles. A relay is composed of iron heart plates, coils, and contacts. When a direct current voltage is applied to the relay coil, current flows through the coil, causing the iron core to magnetize and attract the moving piece. The contact spring is pushed by the passive piece, causing the moving contact to close and the moving contact to disconnect. When the coil is powered off, the magnetic force disappears, and the moving piece returns to its original position under the pressure of the restoring spring and the contact system.
2.2 The relay adopts a protruding installation main body part installed in a plug-in structure housing, and the relay contact system is installed upward on a vertical screen.
The internal wiring diagram of the relay is shown in Figure 1.
2.4 The external dimensions and installation dimensions of the relay are shown in Figure 2.

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



Figure 2: Outline and Installation Dimensions of DZ-500T Series Intermediate Relay

3 Technical data
3.1 The model specifications and parameters of the relay are shown in the following table

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

3.2 The operating voltage is 50% -70% of the rated voltage
3.3 Action time: not exceeding 0.06s at rated voltage.
3.4 Power consumption: not exceeding 3W at rated voltage.
3.5 Thermal stability: The relay can withstand 110% of the rated voltage for a long time.
3.6 Disconnecting ability and connecting capacity of contacts.
3.6.1 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 contact is 50W.
3.6.2 In an AC circuit, when the voltage does not exceed 250V and the current does not exceed 2.5A, and the power factor is equal to 0.8, the contact breaking power is 500VA.
3.7 Insulation strength: Each conductive circuit and shell should be able to withstand AC 50Hz, 2kV for 1 minute without breakdown or flashover.
3.8 The weight of the relay is approximately 1 kg.

4 Ordering Instructions
4.1 Relay name and model.
4.2 Rated voltage value.
4.3 Order quantity.

DZ-500T series intermediate relay（No image available）