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Phone number:0086-0577-61731588
Fax:0086-0577-61731588
Cell phone:+86 18072180777
Wechat:+86 18072180777
Website:www.china-relay.com
Zhiguang Industrial Zone, Liu Town, Yueqing, Zhejiang, China
NDS7(JSZ7) Electronic timer relay connects and shunts circuits according to the expected time and working procedures. It can be widely used in electrical drives, automatic sequence control systems, flame-retardant shells, alloy terminal blocks, and is used in generators, transformers, Transmission and distribution lines.
NDS7(JSZ7) Electronic Timer Relay Symbolic meaning
JSZ7 series electronic time relay is suitable for ac 50/60Hz, rated voltage 220V and below or direct current 110V and below as a delay element in the control circuit to switch on or break the circuit according to the preset time.
The use of novel electronic circuits for relays has the advantages of long life, high delay precision, easy installation and small size.This is a substitute for the 7PU related-relay manufactured by Siemens, Germany. Its main specifications, performance, appearance and installation are basically the same as those of the 7PU time relay.
Table 1
|
Code name |
T |
S |
D |
|
Working mode |
Delay on |
Time delay |
Disconnect the delay |
|
Code name |
H |
X |
A |
|
Working mode |
Circle delay |
Star triangle transformation |
Delay off |
Table 2
|
Code name |
0 |
1 |
2 |
3 |
4 |
|
Delay range |
0.06~0.6s |
0.2~2s |
0.6~6s |
2~20s |
6~60s |
|
Code name |
5 |
6 |
7 |
8 |
|
|
Delay range |
0.6~6min |
2~20min |
6~60min |
0.2~2h |
|
Table 3
|
Work Voltage（V） |
交流 |
直流 |
|||||
|
24 |
28 |
110 |
220 |
24 |
48 |
110 |
|
|
Code name |
1 |
2 |
3 |
4 |
1 |
1 |
1 |
Table 4
|
Category/Code |
A |
B |
C |
D |
N |
|
|
Number of delayed contacts |
Normally open |
1 |
2 |
2 |
1 |
2 |
|
Normally closed |
1 |
2 |
1 |
1 |
- |
|
|
Instantaneous contact number |
Normally open |
- |
- |
1 |
1 |
- |
|
Normally closed |
- |
- |
- |
1 |
- |
|
Note: The contact forms of JSZ7-T, JSZ7-S and JSZ7-H series are A, B, C and D.
JSZ7-d series has three types of contacts: A, B and D.
JSZ7-x series has only N contact forms;
JSZ7-a series has only A contact form.
Main technical data
1. Power supply: AC: 24V, 480V=110V, 220V 50/60Hz, allowable fluctuation range: (85% ~ 110%) Ue:
DC: 24V, 48V, 110V;
2. Repetition error: ≤1% (Type JSZ7-A: ≤5%);
3, contact capacity: AC220V 5 a, COS Φ = 1;
4. Mechanical life: 1X106
5. Electric life: 1X105 times;
6. Installation mode: device type and 35mm guide rail type.
Wiring sign diagram and working time sequence diagram
Appearance and installation dimensions
Directions for use
JSZ7-d relay shall be controlled by the application controller (MR, E). The control end shall not input voltage or ground, so as to avoid damaging the product.
2. Power on time of JSZ7-A type relay shall be greater than 2S.
3. The relay repeat start time interval shall be ≥0.5s.
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