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Gray 50Hz Thermal Overload Relay Bakelite Shell STH-40 Auxiliary Contact Block

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Gray 50Hz Thermal Overload Relay Bakelite Shell STH-40 Auxiliary Contact Block

Brand Name : SONTUOEC ,WZSTEC

Model Number : STH

Certification : CE

Place of Origin : China

MOQ : 1000pcs

Price : Negotiable

Supply Ability : 5000pcs/day

Standard : IEC 60947-1

Coil Voltage : 24,220,240,380,415V

Frequency : 50Hz/60Hz

Color : gray

Credential : CE

Install : Fixed

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Gray Bakelite Shell Thermal Overload Relay STH-40 Auxiliary Contact Block

STH series of thermal overload relay can be used in the circuit of 50/60 HZ, rated insulation voltage 660 V, rated current 0.1-93A for protecting the phase break when the electric motor is overload , the relay has different mechanism and temperature compensation can be pluged in ST1 series AC contactor,It is the most advanced thermal relay in the nineties in the world the products comply with IEC 60947-4.

The thermal relay works on the principle of the thermal effect of electrical energy. The bimetallic strips, heating coils and the current transformers are the important parts of the thermal relay.

Specifications:


IEC STANDARD: 60947.1
COIL VOLTAGE:24,220,240,380,415V
RATED CURRENT:0.63,1,1.6,2.5,4,6,8,10,13,18,25,32(TR2-D13)
32,40A(TR2-D23)
32,40,50,65,70,80A(TR2-D33)
93,104,120,140A(TR2-D43)

Product Parameter​

Type Thermal Component
Rated Current
(A)		 Regular or Scale of
Rated Current(A)
STH(GTH)-22 0.14 0.10-0.16
0.21 0.16-0.25
0.33 0.25-0.40
0.52 0.40-0.63
0.82 0.63-1.0
1.3 1.0-1.6
2.1 1.6-2.5
3.3 2.5-4.0
5 4.0-6.0
6.5 5.0-8.0
7.5 6.0-9.0
8.5 7.0-10.0
11 9.0-13.0
15 12.0-18.0
19 16.0-22.0
STH(GTH)-40 22 18.0-26.0
30 24.0-36.0
34 28.0-40.0
STH(GTH)-85 30 24.0-36.0
34 28.0-40.0
42 34.0-50.0
55 45.0-65.0
65 54.0-75.0
74 63.0-85.0


Product Tags:

thermal protection relay

      

thermal overcurrent relay

      
China Gray 50Hz Thermal Overload Relay Bakelite Shell STH-40 Auxiliary Contact Block factory

Gray 50Hz Thermal Overload Relay Bakelite Shell STH-40 Auxiliary Contact Block Images

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