AC 50/60Hz Thermal Relay
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AC 50/60Hz Thermal Relay

SPX STH-T series AC 50/60Hz Thermal Relay made in China, rated operating voltage to 690V, current to 630A long-term or intermittent long-term operation of the general AC motor overload and phase break protection, with phase break protection, temperature compensation, trip indication function, and can be automatically and manually reset, can be inserted with contactors. It can also be installed independently.

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Product Description

SPX high quality STH-T series AC 50/60Hz Thermal Relay, rated operating voltage to 690V, current to 630A long-term or intermittent long-term operation of the general AC motor overload and phase break protection, with phase break protection, temperature compensation, trip indication function, and can be automatically and manually reset, can be inserted with contactors. It can also be installed independently.

The STH-T25 thermal relay is suitable for S-M20/25 AC Contactor.

Frame(A) STH-T18(TH-T18) STH-T25(TH-T25) STH-T50(TH-T50)
Suitabie AC contactor S-M10/12 S-M20/25 S-M35/50
Aux contact structure Manual or Auto retum

Adjust range selcet(A)
Select(A) Adjust range(A) Select(A) Adjust range(A) Select(A) Adjust range(A)
0.24A 0.2~0.32 1.3A 1~1.6 29 24~34
0.35A 0.28~0.42 1.7A 1.4~2.0 35 30~40
0.5A 0.4~0.6 2.1A 1.7~2.5 42 34~50
0.7A 0.55~0.85 2.5A 2~3

0.9A 0.7~1.1 3.6A 2.8~4.4

1.3A 1~1.6 5A 4~6

1.7A 1.4~2.0 6.6A 5.2~8

2.1A 1.7~2.5 9A 7~11

2.5A 2~3 11A 9~13

3.6A 2.8~4.4 15A 12~18

5A 4~6 19A 16~22

6.6A 5.2~8 22A 18~26

9A 7~11 29A 24~34

11A 9~13 35A 30~40

Aux contact structure 1a1b(1NO+1NC)
Outline and installation dimension


Type L W H φD

TH-T25 63 51 81 4.5


SPX AC 50/60Hz Thermal Relay Feature And Application

Environmentally raw material
Flame retardant material, heat-resisting
Long machine life
3C certificate

Production process

Hot Tags: AC 50/60Hz Thermal Relay, China, Manufacturer, Supplier, Factory, Quality, Customized
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