3RU11, 3RB10, and 3RB12 overload relays
SIRIUS System Manual
GWA 4NEB 430 0999-02b
4-37
4.7 Technical specifications
4.7.1 3RU11 thermal overload relays
Ty p e 3RU11 16 3RU11 26 3RU11 36 3RU11 46
Frame size S00 S0 S2 S3
Width 45 mm 45 mm 55 mm 70 mm
General specifications
Tripped at
Overload and phase loss
Tripping class
In acc. with IEC 60 947-4-1 CLASS 10
Phase loss sensitivity
Ye s
Overload warning
No
Resetting and recovery
Resetting options after tripping Manual, remote, and automatic resetting
1
)
Recovery time With automatic reset min Depends on the height of the tripping current and the tripping cha-
racteristic
With manual reset min Depends on the height of the tripping current and the tripping cha-
racteristic
With remote reset min Depends on the height of the tripping current and the tripping cha-
racteristic
Configuration
Indication of operating status on device Yes, by means of the "test function/contact position indicator" slider
Test function Ye s
Reset button Ye s
Stop button Ye s
For the safe operation of
motors with increased
safety protection
EC special test certificate
number in compliance
with directive 94/9/EC
KEMA test certificate no. EX-97.Y.3235
DMT 98 ATEX G001
Ambient temperatures
Storage/transportation °C -55 to +80
Operation °C -20 to +70
Temperature compensation °C To 60
Permissible rated current at Internal cubicle temperature of 60 °C % 100 (current reduction is required at above +60 °C)
Internal cubicle temperature of 70 °C % 87
Repetition terminals
Terminal for contactor coil Yes Not required
Auxiliary switch repetition terminal Yes Not required
Degree of protection
In acc. with IEC 60 529/DIN VDE 0470
Part 1
IP 20 IP 20
2
)
Shock protection
In acc. with DIN VDE 0106 Part 100 Protected against touching by fingers
Sinus shock resistance
In acc. with IEC 68 Part 2-27
g
/ms 810
EMC noise immunity
Conducted
disturbance neutralization - burst
In acc. with IEC 61 000-4-4:
(corresponds to severity grade 3)
kV EMC noise immunity is not relevant to thermal overload relays
Conducted
disturbance neutralization - surge
In acc. with IEC 61 000-4-5:
(corresponds to severity grade 3)
kV EMC noise immunity is not relevant to thermal overload relays
Electrostatic discharge In acc. with IEC 61 000-4-2:
(corresponds to severity grade 3)
kV EMC noise immunity is not relevant to thermal overload relays
Field-related disturbance neutralization In acc. with IEC 61 000-4-3:
(corresponds to severity grade 3)
V/m EMC noise immunity is not relevant to thermal overload relays
EMC emitted interference
EMC noise immunity is not relevant to thermal overload relays
Resistance to extreme climates
(atmospheric humidity)
%100
Site altitude
m Up to 2000 above sea level; above on request
Construction type/mounting
Direct
mounting
3
)/
stand-alone instal-
lation with termi-
nal bracket
Direct mounting/stand-alone installation with terminal
bracket
4
)
1) Remote reset in conjunction with suitable accessories 4) For screw-on and snap-on attachment to 35 mm rail
2) Terminal compartment: IP 00 degree
of protection
Frame size S3 also for 75 mm rail
3) Only stand-alone installation is possible for the 3RU11 16
overload relay with the Cage Clamp terminal system.
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