DZB-10B series maintains intermediate relayDetailed product description：

Application of DZB-10B series intermediate relay

The DZB-10B series intermediate relay has a self holding winding and is used in DC operated relay protection circuits to increase the number and capacity of contacts and improve the reliability of contact operation. DZB-11B, 12B, and 13b are intermediate relays that maintain voltage starting current; DZB-14B is an intermediate relay for maintaining current starting voltage; DZB-15B is an intermediate relay that starts with voltage or current and maintains current or voltage.

Working principle and structure of DZB-10B series intermediate relay

2.1 Relays are electromagnetic relays. When voltage or current is applied to the working winding, the armature moves towards the closed position, the dynamic contact closes, and the dynamic contact opens. After the relay is activated, the circuit of the holding winding is connected. If the working winding loses power, the relay will not release. Only when the holding winding loses power, the armature will return to its original state under the pressure of the contact piece, and the dynamic contact will open and close.
2.2 Relays have two structures:
2.2.1 Protruding plug-in structure. Adopting Aji JK-1 type shell, its outline and opening diagram are shown inAppendix IThe internal wiring of the relay is shown in Figure 1.
2.2.2 Embedded plug-in structure (with/Q in the model). Using the Xuji A11K shell, its external shape and opening diagram are shown inAppendix IIThe internal wiring of the relay is shown in Figure 2.
2.2.3 If it is necessary to change the wiring method from the back of the board to the front of the board, a front wiring socket and a middle frame should be added. SeeAppendix IIFigure 2 Embedded Internal Wiring Diagram

DZB-11B DZB-12B DZB-13B



DZB-14B DZB-15B
Figure 1: Protruding Internal Wiring Diagram

DZB-11B/Q DZB-12B/Q DZB-13B/Q

DZB-14B/Q DZB-15B/Q
Figure 2 Embedded Internal Wiring Diagram

3 Model specifications: (see Table 1)

model	Rated value		Maintain winding type and quantity		Contact form and quantity (paid)
	Working winding	Maintain winding	current	voltage	dynamic fit	transformation
DZB-11B	24，48，110， 220V	0.5，1，2， 4，8A	three	-	three	three
DZB-12B			three	-	six	-
DZB-13B			one	-	three	three
DZB-14B	0.25，0.5，1，2， 2，4，8A	24，48，110， two hundred and twenty	-	one	three	three
DZB-15B			-	one	three	three
	24，48，110，220V	0.25，0.5，1，2，4，8A	one	-

Technical data of DZB-10B series intermediate relay
4.1 Action value: The voltage type is 30% -70% of the rated voltage value; The current type shall not exceed 80% of the rated voltage value.
4.2 Holding value: For relays with current holding windings, the holding current shall not exceed 80% of the rated holding current; Relays with voltage holding windings shall maintain a voltage not exceeding 70% of the rated holding current.
4.3 Return value: not less than 3% of the rated value.
4.4 Action time: When the input excitation amount is at the rated value, it should not exceed 0.045 seconds.
4.5 Return time: Not more than 0.06s after disconnecting the winding again.
4.6 Power consumption: At rated values, it shall not exceed the rated values in the table below. (See Table 2)

model	Power consumption (W)
	Voltage working winding	Current working winding	Voltage holding winding	Current holding winding
DZB-11B、12B	seven	-	-	four
DZB-13B	five point five	-	-	four
DZB-14B	-	seven	seven	-
DZB-15B	seven	-	-	four
	-	seven	seven	-

4.7 Contact breaking capacity: In DC inductive load circuits with voltage not exceeding 250V and current not exceeding 1A (time constant of 5H10-3S), the breaking capacity is 50W; in AC circuits with voltage not exceeding 250V and current not exceeding 3A (power factor of 0.4), the breaking capacity is 250VA.
4.8 The long-term allowable current through the contact is 5A.
4.9 Dielectric Strength: The conductive and non-conductive parts of the relay, as well as the coil circuit and contact circuit, can withstand AC 50HZ and voltage of 2kV for 1 minute without breakdown or flashover.
4.10 Relay weight: Approximately 0.7Kg.

5 Ordering Instructions
Please specify when placing an order
5.1 Name and model of relay;
5.2 Rated values of working winding and holding winding;
5.3 Order quantity.