Minimum
Typical
Maximum
Control voltage S33/S11 and S21
Control voltage
17.4 V DC
22 V DC
26.4 V DC
Control current
40 mA
100 mA
Short-circuit current between S33/S11 and S21
300 mA
Fuse
Electronic fuse
Response time in case of cross-circuit
50 ms
Switch on time after cross-circuit
50 ms
Electrical isolation between A1/A2 and S21, S11, S33 No
Input circuits (S12, S31, S22, S34, S35)
Input voltage (S12 and S31)
HIGH
17.4 V DC
26.4 V DC
LOW
–3V DC
+5 V DC
Input current S12 and S31
40 mA
100 mA
Input current S34/S35
5 mA
50 mA
Reset time
Manual reset (S34)
40 ms
Automatic reset
(ESPE: S33/S35; tactile: S12/S35)
80 ms
Reset button operation time
50 ms
Minimum shutdown time/minimum switch-on time
7 ms
Permissible test pulse duration/test frequency
1000 µs/
10 s-1
Cable resistance on the input circuit
35 Ohm
Output current circuits (13/14, 23/24, 33/34)
Reactivation delay (K1/K2)
25 ms
Minimum switch off time
70 ms
130 ms
Contact material and surface finish
Ag Sn O
2
+ 2µ Au
Enable current paths (normally open contact), safety
relevant
3
Contact type
Positively guided
Max. contact load (see diagram)
Switching voltage AC
10 V
230 V
Switching voltage DC
10 V
300 V
Switching current
10 mA
6 A
Total current I
sum
12 A
For UL 508 and CSA applications
Switching voltage AC
230 V
Switching current
6 A
Total current I
sum
12 A
AC-15 Ue 230 V AC, Ie 4 A (360 switching
operations/h)
AC-15 Ue 230 V AC, Ie 3 A (3600
switching operations/h)
Usage category (EN 60
947-5-1)
DC-13 Ue 24 V DC, Ie 4 A (360 switching
operations/h)
DC-13 Ue 24 V DC, Ie 2.5 A (3600
switching operations/h)
Contact fuse protection gG
6 A
Permissible switching frequency
3600/h
Service life, mechanical
10
7
switching operations
Minimum
Typical
Maximum
DC contact current-breaking capacity
Service life, electrical
Operating data
Protection against physical contact (EN 60
664-1,
EN 60
947-1)
Rated impulse voltage V
Imp
(
EN 60
664-1)
4 kV
Overvoltage category
II
Rated voltage
300 V AC
Radiated emissions
EN 61
000-6-4
Interference resistance
EN 61
000-6-2
Test voltage U
rms
50 Hz
2 kV
Enclosure rating
Housing
IP40 (EN 60
529)
Terminals
IP20 (EN 60
529)
Mounting
Mounting rail (EN 60
715)
Ambient operating temperature
–25 °C
+55 °C
Storage temperature
–25 °C
+75 °C
Wire cross-sections
Single wire (1×)
0.14 mm²
2.5 mm²
Single wire (2×, same cross-section)
0.14 mm²
0.75 mm²
Fine stranded wire with ferrules (1×)
0.25 mm²
2.5 mm²
Fine stranded wire with ferrules (2×, same cross-
section)
0.2 mm²
0.5 mm²
Allowed tightening torque
0.5 Nm
0.6 Nm
For UL 508 and CSA applications
Connection cross-section
AWG 26-14
(only use 60/75 °C copper flexible wire)
Tightening torque
5-7 lb⋅in
Weight
210 g
13.2 Dimensional drawings
Fig. 7: Dimensional drawing UE48-3OS with screw type terminals (mm)
Fig. 8: Dimensional drawing UE48-3OS with removable terminals (mm)
Switching voltage (V DC)
Switching operations
S
w
itc
hi
ng
cu
rr
en
t
(A
)
S
w
itc
hi
ng
cu
rr
en
t
(A
)
L/R = 40 ms
t
LB
> 5 ms
L/R = 0 ms
t
LB
< 5 ms
L/R = 40 ms
t
LB
< 5 ms
Contact
clearance:
1.2 mm
t
LB
: Arc duration
AC-15: 230 V
DC-13: 24 V
DC-1: 24 V
AC-1: 230 V
