Instruction manual

L
L
L
30 31
Overseas Standard
Solve Together
MS-T Series IntroductionSelection and Application
Application to Thermal Overload Relays
Product IntroductionOverseas StandardType CodesOrder ProcedureOutline DrawingWarranty and Safety
■ Available Short Circuit Current Rating (SCCR) and Short Circuit Protection Device (S.C.P.D.)
Note1: This overload relay is adjustable and ambient compensated. Set the dial
in the position corresponding to the motor full load current.
Note2: Trip rating is 125% of setting.
Model
Available
Short
Circuit
Current
S.C.P.D.
Circuit Breaker
Max. Current
Ratings
Min. Interrupting
Ratings
S-T10/T12
S-T20
Max. Circuit Voltage
*1 *1*1*1*1*1
*1. Main circuit wires must be connected to contactor using applicable lugs shown in below table.
Available
Short
Circuit
Current
S.C.P.D.
Max.
Circuit Voltage
Circuit Breaker
Max. Current
Ratings
Min. Interrupting
Ratings
*1 *1*1*1*1*1
To provide continued protection against a risk of fire and electric shock, the
complete overload relay must be replaced if burnout of current element occurs.
WARNING
*1. Main circuit wires must be connected to contactor using applicable lugs shown in next table.
*2. 11A heater is applied to types S-T12 and S-T20.
*3. 15A heater is applied to type S-T20.
*4. 22A heater is applied to type S-T25.
*2
*3
*4
0.12A
0.17A
0.24A
0.35A
0.5A
0.7A
0.9A
1.3A
1.7A
2.1A
2.5A
3.6A
5A
6.6A
9A
11A
15A
0.24A
0.35A
0.5A
0.7A
0.9A
1.3A
1.7A
2.1A
2.5A
3.6A
5A
6.6A
9A
11A
15A
22A
Adjustable
Range.Amps.
0.10 - 0.16
0.14 - 0.22
0.20 - 0.32
0.28 - 0.42
0.4 - 06
0.55 - 0.85
0.7 - 1.1
1.0 - 1.6
1.4 - 2.0
1.7 - 2.5
2.0 - 3.0
2.8 - 4.4
4.0 - 6.0
5.2 - 8.0
7 - 11
9 - 13
12 - 18
0.20 - 0.32
0.28 - 0.42
0.4 - 0.6
0.55 - 0.85
0.7 - 1.1
1.0 - 1.6
1.4 - 2.0
1.7 - 2.5
2.0 - 3.0
2.8 - 4.4
4.0 - 6.0
5.2 - 8.0
7 - 11
9 - 13
12 - 18
18 - 26
TH-T18KP
Heater
Desig.
ModelTH-T25KP
S.C.P.D.
Fuse, Class K5
Max. Current
Ratings
15A
20A
30A
40A
15A
20A
30A
40A
50A
70A
100A
15A
30A
75A
50A
30A 30A
50A
50A
15A
15A 15A
30A
75A
50A
Available
Short
Circuit
Current
5kA
5kA
50kA
10kA
/
35kA
14kA/50kA
10kA
/
50kA
N/A
N/A
N/A
N/A
35kA
N/A
N/A
18kA 10kA10kAN/A 10kAN/A N/A
600V 240V 480V600V 480V 240V240V600V 480V600V 600V
N/A
S-T21
S-T25
18kA
480V
50kA
10kA
480V
35kA
Available
Short
Circuit
Current
600V
5kA
600V
N/A
600V
N/A
600V
N/A
S-T32
30A
50A
240V
50A
75A
75A
30A
50A
480V
50A
75A
75A
S.C.P.D.
Fuse, Class K5
Max. Current
Ratings
30A
70A
600V
70A
100A
100A
10kA
240V
10kA
50kA
14kA
50kA
14kA
50kA
10kA
240V
10kA
35kA
10kA
35kA
10kA
35kA
Instruction for UL /CSA
Recommended
Crimp Lug Size
(JST Cat No.)
*1. The available current rating of 15A heater is 16A or less.
*2. Two conductors of the same size can be connected.
*3. Please use swaging tool which is recommended by JST.
Terminal
S-T10/T12/T20 TH-T18KP
2 Wires or 2 Lugs per terminal
*1
*3
*2
Connection to
terminal Max. qty.
Tightening torque
Auxiliary
M3.5
10mm
14 AWG
1.25-3.5 to
2-3.5
Control
9mm
M3.5
14 AWG
1.25-3.5 to
2-3.5
Model
Screw size
Wire size (60/75℃)
(copper only) (Sol./Str.)
Main
M3.5
10mm
14 - 12 AWG
1.25-3.5 to 2-3.5
5.5-S3
Auxiliary
M3.5
10.5mm
14 AWG
1.25-3.5 to
2-3.5
Main
10.5mm
M3.5
14 - 12 AWG
1.25-3.5 to 2-3.5
5.5-S3
Wire strip length
S-T21 S-T25 S-T21/T25 S-T21/T25
Main
11.5mm
M4
Auxiliary
M3.5
11.5mm
14 AWG
1.25-3.5 to
2-3.5
Control
9mm
M3.5
14 AWG
1.25-3.5 to
2-3.5
■ Applicable wire size, lug size and tightening torque
1.25-4 to 5.5-4
8-NK4
14 - 8 AWG
1.25-4 to
5.5-4
14 - 10 AWG
TH-T25KP
Auxiliary
M3.5
10.5mm
1.25-3.5 to
2-3.5
14 AWG
10mm
Main
M4
10.3 lb-in
(1.17N・m)
10.3 lb-in
(1.17N・m)
10.3 lb-in
(1.17N・m)
10.3 lb-in
(1.17N・m)
10.3 lb-in
(1.17N・m)
15 lb-in
(1.69N・m)
10.3 lb-in
(1.17N・m)
10.3 lb-in
(1.17N・m)
10.3 lb-in
(1.17N・m)
15 lb-in
(1.69N・m)
1.25-4 to 5.5-4
8-NK4
14 - 8 AWG
*1. Two conductors of the same size can be connected.
*2. Please use swaging tool which is recommended by JST.
2 Wires or 2 Lugs per terminal
Control
9mm
M3.5
14 AWG
10.3 lb-in
(1.17N・m
)
1.25-3.5 to 2-3.5
Auxiliary
M3.5
10mm
14 AWG
10.3 lb-in
(1.17N・m)
1.25-3.5 to 2-3.5
*1
SR-T5/T9
Terminal
2 Wires or 2 Lugs per terminal
S-T32
*3
*2
*1
Connection to
terminal Max. qty.
Tightening torque
Control
9mm
M3.5
14 AWG
10.3 lb-in
(1.17N・m)
1.25-3.5 to 2-3.5
Model
Screw size
Recommended Crimp Lug Size
(JST Cat No.)
Main
11.5mm
M4
14 - 10 AWG
8 AWG
1.25-4 to 5-5.4
8-NK4
15 lb-in
(1.69N・m)
*1. If it is necessary to apply 8AWG at the polyphase AC200-208V,
it should be applied 75℃ copper wire only.
*2. Two conductors of the same size can be connected.
*3. Please use swaging tool which is recommended by JST.
Wire strip length
Wire size (60/75℃)
(copper only) (Sol./Str.)
Terminal
*2
Connection to
terminal Max. qty.
Tightening torque
Model
Screw size
Recommended Crimp Lug Size
(JST Cat No.)
Wire strip length
Wire size (60/75℃)
(copper only) (Sol./Str.)
WARNING
When a 2-wire control is used to reset the automatic reset overload relay of a
motor controller, the motor connected to the circuit may start automatically
when the relay is in the automatic reset position.