WEG Electric RW Series Technical Specifications
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Thermal Overload Relays - RW Series
Separate mounting kit
Description Mounting on Overload Relays Catalog Number List Price Multiplier Symbol
Enables overload relay to be directly mounted
to a back panel via screws or DIN rail
Connector links
Description
Link connectors for easier CWM contactors and
RW overload relays assembly
Contactor Overload Relay
CWM112E RW117-2D3 GA117D $41 Z2
CWM112E/150E RW317-1D3 GA317-1D $68 Z2
CWM180E RW317-1D3 GA317-2D $70 Z2
CWM250E/300E RW317-1D3 GA317-3D $118 Z2
General Ratings
TYPE RW17D RW27D RW67D RW117D RW317D RW407D
Standards
Number of Poles 3
Tripping Class 10
Phase Failure Sensitivity Yes
Temperature Compensation Yes
Rated Insulation Voltage Ui
Acc. IEC 60947-4-1 [V] 690 1000
Acc. UL; CSA [V] 600
Rated Operation Voltage Ue
Acc. IEC 60947-4-1 [V] 690 1000
Acc. UL; CSA [V] 600
Rated Impulse Voltage Uimp [kV] 6
Current
Direct YES NO
Alternating [Hz] up to 400 50/60
Degree of Protection Protection against direct contact acc. VDE 0160 - Part 100 - IP20
Ambient Temperature
Storage -50 to +80ºC (-58 to 176ºF)
Operating -20 to +70ºC (-4 to 158ºF)
Ambient temperature compensation -20 to +60ºC (-4 to 140ºF)
Pollution Degree 3
Mounting Direct on contactor or separately with accessory Separate
Power Dissipation per Pole [W] up to 3 up to 5.5 - -
Weight [kg] 0.15 0.15 0.31 0.52 2.30 3.12
[lb] 0.33 0.32 0.68 1.15 5.06 6.88
Shock Resistance
IEC 60 068 part 2-27 [g/ms] 8/10
Main Terminals Capacity Cross / Slotted Combination1) Allen Head Slide Bar Slide Bar
Fine - Stranded with Sleeve [mm2] 1.5 - 10 1.5 - 10 6.0 - 35 6.0 - 35 - -
Coarse - Stranded / Solid [mm2] 1.5 - 6.0 1.5 - 6.0 6.0 - 35 25 - 35 - -
Slide Bars [mm2] - - - - 2x(25x5) 2x(60x10)
Stranded / Solid (UL / CSA) [AWG] 14 - 6 14 - 6 18 - 2 8 – 1/0 8 – 1/0 8 – 1/0
Tightening Torque [N.m] 1.4 - 2.3 1.4 - 2.3 4.0 - 6.0 4.0 - 6.0 14 - 26 23 - 26
[lb-in] 12.4 - 20.4 12.4 - 20.4 35.4 - 53.1 35.4 - 53.1 123.9 - 230.1 203.6 - 230.1
1) For RW67-2D power terminal screws are Allen Head
RW27-1D3 BF27D $14 Z2
RW67-1D3 and RW67-2D3 BF67.1D $23 Z2
RW117-1D3 BF117D $26 Z2
Assembles with
Devices according to International Standards IEC 60947-1 / 60947-4-1, European Standards EN 60947-1 / 60947-4-1,
Underwriters Laboratories - UL 508; CSA C.22.2/14; VDE 0660/102
Catalog Number List Price Multiplier Symbol
8/10
WEG Automation - Products and Solution 103
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Controls
Thermal Overload Relays - RW Series
General Ratings
TYPE RW17D RW27D RW67D RW117D RW317D RW407D
Front Auxiliary Contact 1 NO + 1 NC
Rated Auxiliary Contacts
AC-14/15 24V [A] 4.0
60V [A] 3.5
125V [A] 3.0
230V [A] 2.0
400V [A] 1.5
500V [A] 0.5
690V [A] 0.3
DC-13/14 24V [A] 1.0
60V [A] 0.5
110V [A] 0.25
220V [A] 0.1
UL508 C600 ; R300
Rated Thermal Current [A] 6
Short Circuit Protection
Fuses Type D or NH gL/gG [A] 6
Auxiliar Terminals Capacity
Fine - Stranded with Sleeve [mm2] 1.0 - 2.5
Coarse - Stranded / Solid [mm2] 1.0 - 2.5
Stranded / Solid (UL / CSA) [AWG] 16 - 12
Tightening Torque [N.m] 1.0 - 1.5
[lb-in] 8.9 - 13.3
NOTE:
The derating of a RW overload
relay has two possible factors:
1) Ambient temperature
• Temperature compensation
considers a factor according
to which the rated current
must be reduced when ambient temperature is higher
than 60ºC (140ºF).
2) Altitude
• Altitude compensation
involves both, rated current
and voltage.
• Current compensation
considers a factor according to the rated current
must be reduced.
• For voltage, altitude limits
the higher operating voltage
we can use the overload
relay.
The derating of the permissible operating current for installation altitudes above 2,000m
(6,667 ft) and ambient temperatures over 60ºC (140ºF) is calculated according to:
Total derating = Derating
x Derating
altitude
ambient temperature
Example;
Altitude: 3,000 m (10,000 ft) K1 = 0.96
Ambient temperature: 70ºC (158ºF) K2 = 0.87
Meters
Total current derating = 0.96 x 0.87 = 0.84 x Ie
In this case, the maximum rated voltage we can connect to our RW overload relay is
550V.
In order to select the proper overload relay, you have to choose a device with a current range that accommodates:
Derating Factor
Overload Setting Point = FLA
/ (K1 x K2)
motor
As in the example above, K1 x K2 = 0.84
For a motor with FLA = 20Amps
Overload Setting Point = 20 / 0.84 = 23.8Amps
1-800-ASK-4WEG104
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