51, Ezra street ground floor Kolkata – 700001
Get a Quote

Thermal Overload Relays

Thermal Overload Relays

Home // Thermal Overload Relays

Thermal Overload Relay Supplier

One of the key advantages of Narayani Electric Co. is that they provide cost-effective solutions to our customers. Their products are highly competitively priced and offer customers great value for money. This means that customers can purchase quality products like – Thermal Overload Relay without having to break the bank.

In addition, Narayani Electric Co. also offers a wide range of services related to Thermal Overload Relay. They offer installation, maintenance, and repair services for their Thermal Overload Relay. This ensures that the Motor Protection Solutions are always in optimal condition and functioning properly.

Type MN – Suitable for MNX Contactor

 

Features

  • Available in 3 frame sizes from 2-570 A
  • Ambient temperature compensated up to 55 C
  • Built-in Single Phasing protection
  • Manual and auto reset mode
  • Conforms IS/IEC 60947-4-1 & IEC 60947-4-1

MN2

MN5

MN12

MN12L

Type of Mounting (Operation) Relay Range (A)   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
                MN 2 (Directly Operated) Direct Mounting on MNX 9 – 40
0.2 – 0.33 SS94141OOEO 1640 10
0.3 – 0.5 SS94141OOGO 1640 10
0.45 – 0.75 SS94141OOJO 1640 10
0.6 – 1 SS94141OOKO 1640 10
0.9 – 1.5 SS94141OOMO 1650 10
1.4 – 2.3 SS94141OOPO 1650 10
2 – 3.3 SS94141OOQO 1650 10
3 – 5 SS94141OOSO 1650 10
4.5 – 7.5 SS94141OOUO 1650 10
6 – 10 SS94142OOVO 1650 10
9 – 15 SS94142OOBO 1660 10
14 – 23 SS94144OODO 1810 10
20 – 33 SS94145OOEO 2665 10
24 – 40 SS94145OOFO 2795 10
      MN 5 (Directly Operated) Direct Mounting on MNX 50 – 80
9 – 15 SS94135OOBO 3315 10
14 – 23 SS94135OODO 3315 10
20 – 33 SS94136OOEO 3315 10
30 – 50 SS94136OOGO 4075 10
36 – 60 SS94136OOTO 4385 10
45 – 75 SS94137OOJO 4705 10
66 – 110 SS94137OOKO 5370 10
        MN 12 (CT Operated) Separate Mounting
28 – 46.5 SB94211OOGO 7825 1
42 – 69 SS94138OOHO 7825 1
60 – 100 SS94138OOKO 7825 1
90 – 150 SS94138OOMO 7825 1
135 – 225 SS94138OOPO 9790 1
180 – 300 SS94139OOQO 10300 1
270 – 450 SS94139OORO 12930 1
      MN 12L # (CT Operated) Separate Mounting
42 – 69 SS94127OOHO 25190 1
60 – 100 SS94127OOKO 25190 1
90 – 150 SS94127OOMO 25190 1
135 – 225 SS94127OOPO 25190 1
180 – 300 SS94127OOQO 25190 1
340 – 570 SS94127OOSO 25190 1
 

Type RTO - Suitable for MO Contactor

Features

  • Ambient temperature compensated upto 55 C
  • Built-in Single Phasing protection
  • Manual and auto reset mode
  • Front access to START and STOP/RESET buttons
  • Sealable in OFF condition
  • Conforms IS/IEC 60947-4-1 & IEC 60947-4-1

RTO 1

RTO 2

RTO 3

RTO 4

Type of Mounting (Operation) Relay Range (A)   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
                  RTO – 1 (Directly Operated) Direct Mounting on MO 9 – 45
0.23 – 0.41 CS96355OOFO 2210 10
0.31 – 0.55 CS96355OOGO 2210 10
0.55 – 0.85 CS96355OOJO 2210 10
0.78 – 1.2 CS96355OOLO 2210 10
1.2 – 2.0 CS96355OONO 2210 10
1.9 – 2.8 CS96355OOPO 2240 10
2.4 – 3.6 CS96355OOQO 2240 10
3.5 – 5.2 CS96355OOSO 2240 10
4.6 – 6.7 CS96355OOTO 2240 10
6.7 – 9.7 CS96355OOVO 2240 10
8.5 – 12.5 CS96355OOAO 2280 10
12.5 – 18.5 CS96356OOCO 2280 10
17 – 25.5 CS96356OODO 2425 10
25 – 37 CS96356OOEO 3570 10
35 – 45 CS96356OOGO 3750 10
        RTO – 2 (Directly Operated) Direct Mounting on MO 50 – 70
5 – 7.5 CS96366OOUO 4380 1
7 – 11 CS96366OOVO 4380 1
10.5 – 16 CS96366OOBO 4380 1
15 – 21 CS96366OOCO 4380 1
20 – 31 CS96366OOEO 4500 1
30 – 43 CS96366OOFO 5440 1
40 – 57 CS96366OOSO 6025 1
50 – 75 CS96367OOJO 6305 1
      RTO – 3 (Directly Operated) Direct Mounting on MO 80 – 110
23 – 30 CS90873OOEO 7330 1
29 – 38 CS96303OOQO 7615 1
37 – 49 CS96304OOGO 7855 1
47 – 62 CS96312OOTO 8000 1
60 – 78 CS96313OOJO 9430 1
75 – 110 CS96314OOKO 10325 1
        RTO – 4 (CT Operated) Separate Mounting
23.4 – 36 CS97096OOGO 10750 1
36 – 60 CS97096OOJO 10750 1
57 – 84 CS97096OOKO 10750 1
72 – 108 CS97096OOLO 10750 1
105 – 156 CS97096OOMO 10750 1
138 – 201 CS97096OONO 13320 1
201 – 291 CS97096OOQO 13865 1
255 – 375 CS97096OORO 17120 1
 

Quick links

Features

  • Direct mounting on MX contactor
  • Built-in single phasing protection
  • Front access to START and STOP/RESET buttons
MDX SIDE ADD ON AUX CONTACT BLOCK
Type of Mounting (Operation) Relay Range (A)   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
    RX (Directly Operated)   Direct Mounting on MX Contactors 0.23-0.41 CS96357OOFO 1300 10
0.45-0.78 CS96357OOJO 1300 10
0.78-1.2 CS96357OOLO 1300 10
1.2-1.9 CS96357OONO 1300 10
1.8-2.8 CS96357OOPO 1300 10
2.6-3.6 CS96357OOQO 1300 10
3.6-5.2 CS96357OOSO 1300 10
4.8-7 CS96357OOTO 1300 10
6.4-9.7 CS96357OOVO 1300 10
8.2-12.1 CS96357OOAO 1300 10

Type ML

Type of Mounting (Operation) Relay Range (A)   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
          ML 1 (Directly Operated) Direct Mounting on ML 1.5 Contactors
0.15 – 0.25 SS91858OODO 2960 10
0.25 – 0.4 SS91858OOFO 2960 10
0.4 – 0.65 SS91858OOHO 2960 10
0.6 – 1 SS91858OOKO 2960 10
1 – 1.6 SS91858OOMO 2960 10
1.5 – 2.5 SS91858OOPO 2960 10
2.5 – 4 SS91858OORO 2960 10
4 – 6.5 SS91858OOTO 2960 10
6 – 10 SS91858OOVO 2960 10
10 – 16 SS91858OOBO 2960 10
  ML 2 / ML 3 (Directly Operated) Direct Mounting on ML 2/3 Contactors
9 – 14 SS91859OOAO 4370 10
13 – 21 SS91859OOCO 4370 10
20 – 32 SS91859OOEO 4370 10
28 – 42 SS91859OOFO 4370 10
 
Type MU-2P (2 Pole)
Type of Mounting (Operation) Relay Range (A)   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.) Type of Mounting (Operation) Relay Range (A)   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
      Direct Mounting on MU-2P Contactor MU 2P (2 Pole)       Direct Mounting on MU-2P Contactor   MU 2P (2 Pole)    
1 – 1.6A CS90207OOMO 695 1 11 – 18A CS90207OOCO 775 1
1.5 – 2.5A CS90207OOPO 695 1 13 – 22A CS90207OODO 775 1
2.5 – 4A CS90207OORO 695 1 16 – 26A CS90207OOBO 775 1
4 – 6.5A CS90207OOTO 695 1 20 – 32A CS90207OOEO 970 1
6 – 10A CS90207OOVO 695 1 26 – 40A CS90207OOFO 970 1
9 – 14 A CS90207OOAO 695 1        

Accessories for Thermal Overload Relays

  Description   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
Push button extn. unit for MN 2 Relays SS94968OOOO 60 100
Kit for Mounting MN 2 Relay on ML 1.5 contactor SS94701OOOO 215 50
Kit for Mounting MN 2 Relay separately (Direct Mounting Type) SS94700OOOO 215 50
Kit for Mounting MN 5 Relay on MNX 95 / 110 / 140 contactor SS94638OOOO 345 20
Kit for Mounting MN 5 Relay on ML 2 / ML 3 contactor SS94151OOOO 225 20
Kit for Mounting MN5 Relay on ML 4 / ML 6 contactor SS94152OOOO 305 20
DIN Rail Mounting Kit Relay on MN 2 Relay SS91887OOOO 165 50

Relay Reset Cord for MN & RTO relay

  Description   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
MN Relay reset cord – 400mm SB94207OOOO 780 1
MN Relay reset cord – 650mm SB94208OOOO 810 1
MN Relay reset cord – 900mm SB94209OOOO 835 1
MN Relay reset cord – 1200mm SB94210OOOO 935 1
RTO Relay reset cord – 400mm CS90941OOOO 780 1
RTO Relay reset cord – 650mm CS90942OOOO 810 1
RTO Relay reset cord – 900mm CS90943OOOO 835 1
RTO Relay reset cord – 1200mm CS90944OOOO 935 1
 
400 MM
650 MM
900 MM
1200 MM
  Description   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
MN Relay reset cord – 400mm SB94207OOOO 780 1
MN Relay reset cord – 650mm SB94208OOOO 810 1
MN Relay reset cord – 900mm SB94209OOOO 835 1
MN Relay reset cord – 1200mm SB94210OOOO 935 1
RTO Relay reset cord – 400mm CS90941OOOO 780 1
RTO Relay reset cord – 650mm CS90942OOOO 810 1
RTO Relay reset cord – 900mm CS90943OOOO 835 1
RTO Relay reset cord – 1200mm CS90944OOOO 935 1
 
  Description   Cat. No. M.R.P. (`) Per Unit Std. Pkg. (Nos.)
RTO-1 Relay Separate Mounting Kit CS96335OOOO 290 1
RTO-2 Relay Separate Mounting Kit CS96306OOOO 690 1
RTO-3 Relay Separate Mounting Kit CS96307OOOO 980 1