DZS-100 series intermediate relayDetailed product description：

Application of DZS-100 series intermediate relay

The DZS-100 series intermediate relay is used as an auxiliary relay in DC operated protection circuits to increase the number or capacity of contacts for the main protection relay. DZS-115 and DZS-117 are delay action relays; DZS-127 and DZS-136 are delayed voltage action and current holding relays; The DZS-145 type is a delayed return relay.

Overview of the Structure of DZS-100 Series Intermediate Relays
The DZS-100 series relay is a pull in electromagnetic relay.
The coil of the relay is mounted on the cylindrical iron core of the mountain shaped magnetic conductor, DZS-115、 The 117 type has only one working winding (voltage winding); DZS-127、 The 136 type has one working winding (voltage winding) and two holding windings (current winding). Damping rings are simultaneously installed on the cylindrical core above or below the coil, thereby obtaining delayed action or delayed return of the relay.
The dynamic and static contact systems of the relay are respectively fixed on the armature and yoke of the magnetic conductor. The armature and yoke are hinged with support pillars, and the relay is returned and in the open position by the action of a tension spring.
The relay is installed on a vertical panel and can be wired in front of or behind the board. Its internal wiring is shown in Figure 1.



Figure 1 Internal wiring diagram of DZS-100 series relay
According to this, DZS-115 and DZS-117
DZS-127 DZS-136 DZS-145

3 Technical data
3.1 The rated values and contact forms of relays are given in Table 1.

model	rated value		Number of contact points (paid)
	Voltage (V)	Current (A)	Dynamic combination	Dynamic interruption
DZS—115 145	220，110，48，24		two	two
DZS—117	220，110，48，24		four
DZS—127	220，110	1，2，4	four
	48，24	2，4，6
DZS—136	220，110	1，2，4	three
	48，24	2，4，6

3.2 Operating voltage: not exceeding 70% of the rated voltage.
3.3 Action time: not less than 0.06s (excluding DZS-145 type).
3.4 Holding current: not exceeding 80% of rated current (only referring to DZS-127, 136)
3.5 Return time:
DZS-145 type, at rated voltage, the power on time is not less than 0.5s, and then the power is cut off for not less than 0.8s.
3.6 Thermal performance: When the ambient temperature is+40 ℃;
3.6.1 The voltage winding can withstand 110% of the rated voltage for a long time, not exceeding 65K;
3.6.2 The current winding is allowed to pass 3 times the rated current for 5 seconds;
3.7 Power consumption: At rated value:
3.7.1 DZS-115、 Type 117, not exceeding 3.5W;
3.7.2 DZS-127、 136 type, voltage winding not exceeding 5.5W, current winding not exceeding 2.5W;
3.7.3 DZS-145 type, not exceeding 6.5W.
3.8 Contact Capacity: Complies with the specifications in Table 2.

Load	Voltage (V)		Maximum disconnect current	Long term connected current
	DC	AC	（A）	(A)
No sensation	two hundred and twenty		one	five
	one hundred and ten		five	five
Feeling it (T≤5×10-3s)	two hundred and twenty		zero point four	five
	one hundred and ten		four	five
cosф=0.4		two hundred and twenty	five	five
		one hundred and ten	ten	five

3.9 Dielectric strength: Each circuit of the relay can withstand AC 50Hz and voltage of 2kV between exposed non charged metal parts and circuits that are not electrically connected. The test lasts for 1 minute without breakdown or flashover.
3.10 Relay weight: not exceeding 1.1kg.
3.11 The external dimensions and opening dimensions of DZS-100 series relays are shown in Figure 2 and Figure 3.


Figure 2 Outline dimension diagram

Figure 3 Hole Size Diagram


3.12 The resistance value of the coil is shown in Table 3.

DZS—	one hundred and fifteen one hundred and seventeen	Voltage working winding	DC voltage	220V	110V	48V	24V
			coil resistance	16300Ω	4080Ω	940Ω	208Ω
	one hundred and twenty-seven one hundred and thirty-six	Voltage working winding	DC voltage	220V	110V	48V	24V
			coil resistance	10kΩ	2.5kΩ	480Ω	120Ω
	one hundred and forty-five	Voltage working winding	DC voltage	220V	110V	48V	24V
			coil resistance	10.2kΩ	2.2kΩ	450Ω	95Ω

4 Ordering Instructions
Please indicate when placing an order
4.1 Name and model of relay.
4.2 Rated voltage and rated current.
4.3 Wiring method: Wiring before or after the board (if not specified, provide wiring accessories according to the wiring after the board)