SR2B121FU Zelio Logic PLC 8DI 4DO Relay with Clock Display New

Range of product

Zelio Logic 

Product or component type

Compact smart relay 

Local display

With 

[Us] rated supply voltage

100...240 V AC 

Supply current

30 mA  240 V (without extension) 
80 mA  100 V (without extension) 

Power consumption in VA

7 VA without extension 

Discrete input number

8 

Discrete input current

0,6 mA 

Number of outputs

4 relay  

Clock

With 

Number or control scheme lines

120  ladder  
≤ 200  FBD  

Cycle time

6...90 ms 

Backup time

10 years  25 °C 

Clock drift

6 s/month  25 °C 
12 min/year  0...55 °C 

Checks

Program memory on each power up 

Supply voltage limits

85...264 V 

Supply frequency

50/60 Hz 

Isolation voltage

1780 V 

Protection type

Against inversion of terminals (control instructions not executed) 

Discrete input voltage

100...240 V AC 

Discrete input frequency

47...53 Hz 
57...63 Hz 

Voltage state1 guaranteed

≥ 79 V  discrete input 

Voltage state 0 guaranteed

≤ 40 V  discrete input 

Current state 1 guaranteed

> 0,17 mA  discrete input 

Current state 0 guaranteed

< 0,5 mA  discrete input 

Input impedance

350 kOhm (discrete input) 

Output voltage limits

5...30 V DC (relay output) 
24...250 V AC 

Contacts type and composition

NO  relay output 

Output thermal current

8 A for all 4 outputs (relay output) 

Electrical durability

500000 cycles  24 V , 1,5 A (DC-12)  relay output  EN/IEC 60947-5-1 
500000 cycles  24 V , 0,6 A (DC-13)  relay output  EN/IEC 60947-5-1 
500000 cycles  230 V , 1,5 A (AC-12)  relay output  EN/IEC 60947-5-1 
500000 cycles  230 V , 0,9 A (AC-15)  relay output  EN/IEC 60947-5-1 

Switching capacity in mA

≥ 10 mA  12 V (relay output) 

Operating rate in Hz

0,1 Hz (at Ie)  relay output 
10 Hz (no load)  relay output 

Mechanical durability

10000000 cycles (relay output) 

[Uimp] rated impulse withstand voltage

4 kV  EN/IEC 60947-1 and EN/IEC 60664-1

Response time

5 ms (from state 1 to state 0)  relay output 
10 ms (from state 0 to state 1)  relay output 
50...255 ms  FBD  (from state 0 to state 1)  discrete input 
50...255 ms  FBD  (from state 1 to state 0)  discrete input 
50 ms  ladder  (from state 0 to state 1)  discrete input 
50 ms  ladder  (from state 1 to state 0)  discrete input 

Connections - terminals

Screw terminals , flexible  with cable end 1 x 0.25...1 x 2.5 mm² /24...14 AWG 
Screw terminals , solid  2 x 0.2...2 x 1.5 mm² /24...16 AWG 
Screw terminals , solid  1 x 0.2...1 x 2.5 mm² /25...14 AWG 
Screw terminals , semi-solid  1 x 0.2...1 x 2.5 mm² /25...14 AWG 
Screw terminals , flexible  with cable end 2 x 0.25...2 x 0.75 mm² /24...18 AWG 

Tightening torque

0,5 N.m 

Overvoltage category

III  EN/IEC 60664-1 

Product weight

0,25 kg