Page 75 - 温州西卡电器有限公司（WENZHOU XIKA ELECTRICAL CO.,LTD.）

Wenzhou Xika
Electrical Co.,Ltd.

> S3UA Series thermal relay

> Application
S3UA thermal relay is suitable for AC 50/60Hz, voltage up to 660V and current up to 630A, general AC
motor of long or discontinuous long operation, used as overload protection and has the functions of
breaking phase protection, temperature compensation, and trip indication. It can automatically and
manually get back. It can be fixed with contactor CJX1 together, also be independtly fixed. The product
S3UA-12.5/Z conforms to IEC60947-4-1 stardand.

> Motion Characteristic: Three-phase Balance Motion Time
No Times of the Motion Start condition Ambient tem
setting current time perature
1 1.05 >2h Cold state
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
S3UA-25/Z No Times of the setting current Motion Start condition Ambient tem
Any two phases Another phase time perature
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 Number Setting range For Type Number Setting range For
(A) contactor (A) contactor
0A 0.1~0.16 0A 0.1~0.16
0C 0.16~0.25 0C 0.16~0.25
0E 0.25~0.4 0E 0.25~0.4
S3UA-32/Z 0G 0.4~0.63 0G 0.4~0.63
0J 0.63~1 0J 0.63~1
0K 0.8~1.25 0K 0.8~1.25
1A 1~1.6 1A 1~1.6
1B 1.25~2 1B 1.25~2
S3UA- 1C 1.6~2.5 CJX1-09 S3UA- 1C 1.6~2.5 CJX1-16
12.5/Z 1D 2~3.2 CJX1-12 25/Z 1D 2~3.2 CJX1-22
1E 2.5~4 1E 2.5~4
1F 3.2~5 1F 3.2~5
1G 4~6.3 1G 4~6.3
1H 5~8 1H 5~8
1J 6.3~10 1J 6.3~10
S3UA-45/Z 1K 8~12.5 1K 8~12.5
2S 10~14.5 2A 10~16
2B 12.5~20
2C 16~25

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S3UA-63/Z S3UA-80/Z

>B 067