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Description


RTI thermal electrical relay is designed for protecting electric motors from overload, phase unbalance, overcrank condition and rotor jamming. It is installed directly onto KMI contactors. To ensure short-circuit protection, the unit should be supplied with fuses and modular circuit breakers intended for the correspondent value of rated actuating current.

Correspond to the requirements EN 60947-1, EN 60947-4-1, EN 60947-5-1.

Range


 
Name Relay setting range, A Number and type of contacts Package amount, pcs. Product ID
multiple transport
RTI-1301 thermal electrical 0,1-0,16 IEK 0,1+0,16 1NO+1NC  
100 DRT10-D001-C016
RTI-1302 thermal electrical 0,16-0,25 IEK 0,16+0,25 1NO+1NC  
100 DRT10-C016-C025
RTI-1303 thermal electrical 0,25-0,4 IEK 0,25+0,4 1NO+1NC  
100 DRT10-C025-D004
RTI-1304 thermal electrical 0,4-0,63 IEK 0,4+0,63 1NO+1NC  
100 DRT10-D004-C063
RTI-1305 thermal electrical 0,63-1,0 IEK 0,63+1,0 1NO+1NC  
100 DRT10-C063-0001
RTI-1306 thermal electrical 1-1,6 IEK 1+1,6 1NO+1NC  
100 DRT10-0001-D016
RTI-1307 thermal electrical 1,6-2,5 IEK 1,6+2,5 1NO+1NC  
100 DRT10-D016-D025
RTI-1308 thermal electrical 2,5-4,0 IEK 2,5+4,0 1NO+1NC  
100 DRT10-D025-0004
RTI-1310 thermal electrical 4-6 IEK 4,0+6,0 1NO+1NC  
100 DRT10-0004-0006
RTI-1312 thermal electrical 5,5-8 IEK 5,5+8 1NO+1NC  
100 DRT10-D055-0008
RTI-1314 thermal electrical 7-10 IEK 7+10 1NO+1NC  
100 DRT10-0007-0010
RTI-1316 thermal electrical 9-13 IEK 9+13 1NO+1NC  
100 DRT10-0009-0013
RTI-1321 thermal electrical 12-18 IEK 12+18 1NO+1NC  
100 DRT10-0012-0018
RTI-1322 thermal electrical 17-25 IEK 17+25 1NO+1NC  
100 DRT10-0017-0025
RTI-2355 thermal electrical 28-36 IEK 28+36 1NO+1NC  
50 DRT20-0028-0036
RTI-3353 thermal electrical 23-32 IEK 23+32 1NO+1NC  
50 DRT30-0023-0032
RTI-3355 thermal electrical 30-40 IEK 30+40 1NO+1NC  
50 DRT30-0030-0040
RTI-3357 thermal electrical 37-50 IEK 37+50 1NO+1NC  
50 DRT30-0037-0050
RTI-3359 thermal electrical 48-65 IEK 48+65 1NO+1NC  
50 DRT30-0048-0065
RTI-3361 thermal electrical 55-70 IEK 55+70 1NO+1NC  
50 DRT30-0055-0070
RTI-3363 thermal electrical 63-80 IEK 63+80 1NO+1NC  
50 DRT30-0063-0080
RTI-3365 thermal electrical 80-93 IEK 80+93 1NO+1NC  
50 DRT30-0080-0093
RTI-5369 thermal electrical
55-80 IEK
55+80 1NO+1NC   1
20 DRT50-0055-0080
RTI-5370 thermal electrical
63-90 IEK
63+90 1NO+1NC   1
20 DRT50-0063-0090
RTI-5371 thermal electrical
90-120 IEK
90+120 1NO+1NC   1
20 DRT50-0090-0120
RTI-5375 thermal electrical
120-150 IEK
120+150 1NO+1NC   1
20 DRT50-0120-0150
RTI-5376 thermal electrical 150-180 IEK 150+180 1NO+1NC   1
20 DRT50-0150-0180
RTI-6376 thermal electrical
125-200 IEK
125+200 1NO+1NC   1
4 DRT60-0125-0200

Design Features


Transparent cover sealing protecting the setting adjustment disk excludes unauthorized access to adjusting operation values of the setting current. TEST button allows checking the unit’s operability before connecting it to the power network.
The process of subsequent power off can take place in two modes: manual and auto. Surface for applying marking provides for making notes concerning the circuit correspondence that facilitates the mounting.
Current state of NO and NC contacts is displayed by the indicator located on the front panel. Forced shutting down option.

Technical Features


Technical features of power circuit


Features
RTI-1301...RTI-3353 RTI-3355...RTI-3365 RTI-5369…RTI-5376 RTI-6376
Relay setting range, A 0,1+32 30+93 55+200 125+200
Rated operating voltage Ue, V≈ 230~, 400~, 660~ 230~, 400~, 660~ 230, 400, 660 230, 400, 660
Rated insulation voltage Ui, V 660 660 1000 1000
Rated impulse voltage Uimp, kV 6 6 8 8
Frequency, Hz 50 50 0-400 50
Cable size, mm2 flexible cable without tip 1,5+10 4+35 4+35 4+35
flexible cable with tip 1+4 4+35 4+35 4+35
rigid cable 1+6 4+35 4+35 4+35
Torque moment at screw tightening, Nm 2 9 15 28



Technical features of integrated auxiliary contacts

Features RTI1301…RTI3353, RTI3355…RTI3365 RTI-5369…RTI-5376, RTI-6376
Conventional thermal current Ith, A 5 5
Max. capacity of contactor coil connected to the integrated auxiliary contacts depending on the voltage, VA 110V 400 400
220V 600 600
380V 600 600
Overcurrent protection fuse gG, A 5 5
Cable size, mm2 1 + 2,5 1 + 4
Torque moment at screw tightening, Nm 1,2 1,5

Overall Dimensions


Relay type Contactor type Dimensions, mm
b c e g
RTI-1301;
RTI-1302
RTI-1303;
RTI-1304
RTI-1305;
RTI-1306
RTI-1307;
RTI-1308
RTI-1310;
RTI-1312
RTI-1314;
RTI-1316
RTI-1321;
RTI-1322
KMI-10910
KMI-10911
KMI-11210
KMI-11211
KMI-11810
KMI-11811
81 98 50 0
KMI-22510
KMI-22511
86 108 55 10,7
KMI-23210
KMI-23211
86 109 55 8,1



Relay type Contactor type Dimensions, mm
b c e g
RTI-2353 KMI-23210
KMI-23211
97,5 98 60 0,5

Relay type Contactor type Dimensions, mm
b c e g
RTI-3353;
RTI-3355
RTI-3357;
RTI-3359
RTI-3361;
RTI-3363
RTI-3365
KMI-34012 111 119 72,4 4,5
KMI-35012 111 119 72,4 4,5
KMI-46512 111 119 72,4 4,5
KMI-48012 115,5 124 76,9 9,5
KMI-49512 115,5 124 76,9 9,5


RTI-5369, RTI-5370, RTI-5371, RTI-5375, RTI-5376, var. 1





RTI-5369, RTI-5370, RTI-5371, RTI-5375, RTI-5376, var. 2





RTI - 6376


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