Products
BTH Series overload relays apply to circuit of AC 50Hz or 60Hz, rated voltage to below 660V for AC motor overload and single phase protection during long time or intermittent long time service,which can also protect three phase serious imbalance and long starting time of motor or long time operation, can also be used for corresponding AC contactor for electromagnetic starter.
The TOR protect the motors Overload, Locking, Open phase(differential) This product is compact designed, and functional as temperature compensation, action indication, automatic and manual reset, stop with steady and reliable performance
Thermal relay can be combined/connected with contactor or installed separately.
| Three phase (4 pole) motor max. power | BTH-22 | BTH-40 | BTH-85 | |||||
| 220V kW | 380V kW | 415V kW | 440V kW | 550V kW | 660V kW | |||
| 0.1~0.16 | ||||||||
| 0.16~0.2 | ||||||||
| 0.37
0.5 |
0.25~0.4 | |||||||
| 0.37
0.5 |
0.55
0.75 |
0.4~0.63 | ||||||
| 0.37
0.5 |
0.55
0.75 |
0.75
1 |
1.1
1.5 |
0.63~1 | ||||
| 0.37
0.5 |
0.75
1 |
1.1
1.5 |
1.1
1.5 |
1.1
1.5 |
1.5
2 |
1~1.6 | ||
| 0.75
1 |
1.5
2 |
1.5
2 |
1.5
2 |
2.2
3 |
3
4 |
1.6~2.5 | ||
| 1.1
1.5 |
2.2
3 |
2.2
3 |
2.2
3 |
3
4 |
4
5.5 |
2.5~4 | 4~6 | |
| 1.5
2 |
3
4 |
3.7
5 |
3.7
5 |
4
5.5 |
5.5
7.5 |
4~6 | 5~8 | |
| 4
5.5 |
4
5.5 |
5~8 | 6~9 | |||||
| 2.2
3 |
4
5.5 |
4
5.5 |
4
5.5 |
5.5
7.5 |
7.5
10 |
6~9 | 7~10 | 7~10 |
| 3
4 |
5.5
7.5 |
5.5
7.5 |
5.5
7.5 |
7.5
10 |
10
13.5 |
7~10 | 9~13 | 9~13 |
| 4
5.5 |
7.5
10 |
9
12 |
9
12 |
10
13.5 |
15
20 |
9~13 | 12~18 | 12~18 |
| 5.5
7.5 |
11
15 |
11
15 |
11
15 |
12~18 | 16~22 | 16~22 | ||
| 5.5
7.5 |
11
15 |
11
15 |
11
15 |
15
20 |
18.5
25 |
16~22 | 18~26 | 18~26 |
| 7.5
10 |
15
20 |
15
20 |
15
20 |
18.5
25 |
22
30 |
24~36 | 24~36 | |
| 15
20 |
18.5
25 |
28~40 | 28~40 | |||||
| 11
15 |
22
30 |
25
35 |
25
35 |
30
40 |
37
50 |
34~50 | ||
| 15
20 |
25
35 |
30
40 |
30
40 |
37
50 |
45
60 |
45~65 | ||
| 18.5
25 |
30
40 |
37
50 |
37
50 |
45
60 |
55
75 |
54~75 | ||
| 22
30 |
37
50 |
45
60 |
45
60 |
55
75 |
63
85 |
63~85 | ||
| 25
35 |
51
70 |
55
75 |
59
80 |
63
85 |
90
125 |
|||
| 30
40 |
59
80 |
59
80 |
63
85 |
80
110 |
110
150 |
|||
| 45
60 |
80
110 |
80
110 |
90
125 |
100
135 |
129
175 |
|||
| 55
75 |
90
125 |
100
135 |
110
150 |
110
150 |
160
220 |
|||
| 63
85 |
110
150 |
129
175 |
140
190 |
160
220 |
200
270 |
|||
| 80
110 |
150
205 |
160
220 |
160
220 |
200
270 |
257
350 |
|||
| 110
150 |
185
250 |
200
270 |
220
300 |
257
350 |
335
455 |
|||
| 180
245 |
315
430 |
355
480 |
375
510 |
425
580 |
500
680 |
|||
| 220
300 |
400
545 |
425
580 |
450
610 |
500
680 |
||||
| Applied contactors for direct starters | BMC-9(Z)
BMC-12(Z) BMC-18(Z) BMC-22(Z) |
BMC-32(Z) BMC-40(Z) | BMC-50(Z)
BMC-65(Z) BMC-75(Z) BMC-85(Z) |
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