RE8RA21FU TELEMECANIQUE, RE8RA21FU Datasheet - Page 10

• Manufacturer Part Number: RE8RA21FU
• Description: TIMER, OFF-DELAY 3-300S
• Manufacturer: TELEMECANIQUE

Specifications of RE8RA21FU

• Contact Configuration: SPCO
• Nom Input Voltage: 240VAC
• Delay Time Range: 3s To 300s
• Relay Mounting: DIN Rail
• Contact Current Ac Max: 8A
• Contact Current Dc Max: 8A
• Contact Voltage Ac Max: 250V

3
– KM2
Characteristics :
pages 2/36 and 2/37
References :
page 2/40
Dimensions :
page 2/42
Schemes
Terminal blocks
RE8-PE
Recommended application schemes
Pulse on energisation relays
RE8-PE, PT
Timing relays for star-delta starters
RE8-YG, RE8-YA
Note: Correct operation of the star-delta starter associated with the RE8-YG is only possible if the wiring scheme is strictly complied with.
Setting-up
1
– Q1
A1
18
24
15
16
B1
B1
A2
2
– KM3
A1
1
2
10 s
A2
x. %
RE8-PD
– KM1
A1
18
Y
– Rth
Zelio Time - timing relays
Relay output, width 22.5 mm, optimum
Pulse on energisation relays, relays for star-delta starters
Schemes, setting-up
15
16
Y1
A2
RE8-YG
(1) K1T: RE8-YGi1iiTQ
1
2
3
Adjustment of the time delay
- The maximum value of the timing range is printed on the product 2.
Example: RE8-PE11BUTQ; maximum time delay: 10 s.
- Time required 2.4 s; using potentiometer
value
– Rth
– S2
– S1
– KM1
Potentiometer for fine adjustment of the time delay, graduated in % of range max. setting 2.
Marking of maximum time delay value.
LEDs, depending on the models :
- Yellow LED: illuminates when the output relay is energised,
- Green LED: illuminates when the RE8 is energised.
– KM2
– KM3
1
= –––––– = –––––––– = 24
RE8-PT
RE8-PD
Y
+
–
t x 100
A1
18
– FU1
– K1T
2
(1)
15
16
– KM1
2.4 x 100
– KM1
A2
B1
A2
10
A1
Y1
– K1T
16
– KM3
– KM2
15
(1)
Start
L
– KM1
1
RE8-YA
– KM2
set the value of the time delay required as a % of value 2:
A1
28
15
16
RE8-YA
(1) K1T: RE8-YA32iiTQ
– Rth
– S2
25
A2
– S1
– K1T
– KM1
– KM3
Y
– FU1
– K1T
(1)
– KM1
Te
RE8-YG
L
A1
18
– K1T
– KM2
– KM2
– KM1
15
16
B1
A2
– KM3
2/41
2