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Supply characteristics,
a
24 V products
Type
SR2
p
121B
SR2
p
201B
SR3 B101B
SR3 B261B
Nominal voltage
V
a
24
Voltage limits
V
a
20.4…28.8
Nominal frequency
Hz
50-60
Nominal input current
Without extensions
mA
145
233
160
280
With extensions
mA
–
280
415
Power dissipated
Without extensions
VA
4
6
4
7,5
With extensions
VA
–
7.5
10
Micro-breaks
Permissible duration
ms
y
10 (repeated 20 times)
rms insulation voltage
V
a
1780
Discrete input characteristics,
a
24 V products
Type
SR
p pppp
B
Nominal value of inputs
Voltage
V
a
24
Current
mA
4.4
Frequencies
Hz
47...53 and 57...63
Input switching limit values
At state 1
Voltage
V
u a
14
Current
mA
> 2
At state 0
Voltage
V
y a
5
Current
mA
< 0.5
Input impedance at state 1
K
Ω
4.6
Response
time
LADDER
language
State 0 to 1 (50/60 Hz)
ms
50
State 1 to 0 (50/60 Hz)
ms
50
FBD
language
State 0 to 1 (50/60 Hz)
ms
50 min., 255 max. (in increments of 10)
State 1 to 0 (50/60 Hz)
ms
50 min., 255 max. (in increments of 10)
Isolation
Between supply and inputs
None
Between inputs
None
Protection
Against inversion of terminals
Yes (control instructions not executed)
Relay output characteristics,
a
24 V products
Type
SR2
p
121B
SR3 B101B
SR3 XT101B
SR2
p
201B
SR3 B261B SR3 XT61B SR3 XT141B
Operating limit values
V
c
5...30,
a
24...250
Contact type
N/O
Thermal current
A
4 outputs: 8 A 8 outputs: 8 A 8 outputs: 8 A
2 outputs: 5 A
2 outputs: 8 A 4 outputs: 8 A
2 outputs: 5 A
Electrical durability for
500 000 operating cycles
Conforming to
IEC/EN 60947-5-1
Utilisation
category
DC-12
V
c
24
A
1.5
DC-13
V
c
24 (L/R = 10 ms)
A
0.6
AC-12
V
a
230
A
1.5
AC-15
V
a
230
A
0.9
Minimum switching
capacity
At minimum voltage
of
c
12 V
mA
10
Low power switching
reliability of contact
c
12 V - 10 mA
Maximum operating rate
No-load
Hz
10
At Ie (operational current)
Hz
0.1
Mechanical life
In millions of operating cycles
10
Rated impulse
withstand voltage
Conforming to IEC/EN 60947-1
and IEC/EN 60664-1
kV
4
Response time
Set
ms
10
Reset
ms
5
Built-in protection
Against short-circuits
None
Against overvoltage and
overload
None
Presentation :
pages 6 to 9
Functions :
pages 10 to 12
Curves :
pages 20 and 21
References :
pages 22 to 27
Dimensions, schemes :
pages 28 to 31
Characteristics
(continued)
1
Zelio Logic smart relays
1
Compact and modular smart relays
1
2
3
4
5
6
7
8
9
10