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> SGTH Series thermal relay

> Application
SGTH series thermal relay is used in the circuit of 50/60Hz, rated insulation voltage 660V, rated cur-
rent 0.1-85A for protecting the phase break when the electric motor is overloaded. The relay has
different mechanism and temperature compensation. It can be plugged in CJX5 series AC contactor.
The product conforms to IEC60947-4-1.
> Motion Characteristic: Three-phase Balance Motion Time
No Times of the Motion time Start conidition Ambient
setting current(A) temperature
1 1.05 >2h Cold state
SGTH-40 2 1.2 <2h Heat state
3 1.5 <4min (Following the No.1 test) 20±5°C
10A 2s<Tp 10s 63A
4 7.2 10 4s<Tp 10s >63A Cold state
> Phase-losing Motion Characteristic
No Times the setting current(A) Motion Start condition Ambient
Any two phases Another phase time temperature
1 1.0 0.9 >2h Cold state 20±5°C
2 1.15 0 <2h Heat state(Following the No.1 test)

> Specification
Type SGTH-22 SGTH-40 SGTH-85
Ratings Nominal Ranges Ranges Ranges
current Min. Mid. Max. Min. Mid. Max. Min. Mid. Max.
0.14 0.1 0.14 0.16
0.21 0.16 0.21 0.25
0.33 0.25 0.33 0.4
0.52 0.4 0.52 0.63
SGTH-85 0.82 0.63 0.82 1
1.3 1 1.3 1.6
2.1 1.6 2.1 2.5
3.3 2.5 3.3 4
5 4 5 6 4 5 6
6.5 5 6.5 8 5 6.5 8
Rated current(A) 7.5 6 7.5 9 6 7.5 9
8.5 7 8.5 10 7 8.5 10 7 8.5 10
11 9 11 13 9 11 13 9 11 13
15 12 15 18 12 15 18 12 15 18
19 16 19 22 16 19 22 16 19 22
22 18 22 26 18 22 26
30 24 30 36 24 30 36
34 28 34 40 28 34 40
42 34 42 50
55 45 55 65
65 54 65 75
74 63 74 85
2 heaters Standard Standard Standard
Element No.
3 heaters Option Option Option
Aux. Contact 1NO 1NC 1NO 1NC 1NO 1NC
Reset type Auto/Manual Auto/ Manual Auto/Manual
Power consumption 1.8VA/heater 1.8VA/heater 1.8VA/heater
Separate mounting unit AZ-22H AZ-40H AZ-85H
SLR30-22/3 SLR30-40/3 SLR30-85/3
Other model SLR30-22 SLR30-40 SLR30-85
SLR30-22/L SLR30-40/L SLR30-85/L
Applied contactors CJX5-9,12,18,22 CJX5-32,40 CJX5-50,65,75,85
>B 070