Page 194 - Fimex Taiwan Ltd_Wiring Devices 2018

THERMAL

OVERLOAD RELAYS

T TYPE THERMAL RELAY

The relay is suitable for using in the power circuits up to rated
voltage 660V, rated current 500A 50Hz or 60Hz for overload and
loss of phase protection of three phases induction motor and
often combined with B series AC contactor into magnetic starter.
T16 & T25 thermal relays have a friction trip operating
mechanism with loss of phase running protection, pullback
spring trip operating mechanism (jump mechanism) with loss of
phase protection for T85 & TSA45, backpack jump mechanism
for T170 & T105, main circuit with instrument transformer jump
mechanism with loss of phase for T250 & T370.

Specification:

Type T16 T25 T45 T85 T105 T170 T250 T370
Rated Current(A) 16 25 45 85 105 170 250 370
Thermal Element Setting
Current range(A) 0.11-17.6 0.17-32 0.28-48 6.0-100 27-115 90-200 100-400 100-500
Number 1NO,1NC 1NO,1NC 1NC,1NO,2NC 1NO,1NC
Auxiliary Rated 220V:3 220V:3、1.7 220V:3、2.5 220V:3、1.7
Contacts Operating 380V:2 380V:2、1.3 380V:2、1.3 380V:2、1.3
Current(A) 500V:1 500V:1.5 500V:1.5、0.8 500V:1.5

TH-K TYPE THERMAL OVERLOAD RELAY

The thermal overload relays are suitable for overload
protection of AC motor operated on 8-bours duty or
uninterrupted duty. The overload protected AC motor with
frequency 50Hz, voltage up to 660V, current up to 40A.
Several functions provided by these relays are phase-failure
protection, temperature compensation, ON/OFF indication
and manual/automatic reset. The relays comply with
IEC292-1 standard.

Specification:

Type Plug In AC Rated Current Of Thermal Setting Current Range (A)
Contact Element (A)

0.24、0.35、0.5 0.2-0.28、0.28-0.42、0.4-0.6、0.55-0.85
TH-K12 S-K10 S-K11 0.7、0.9、1.3、1.7、2.1 0.7-1.1、1-1.6、1.4-2、1.7-2.1
S-K12 S-K18 2.5、3.6、5、6.6、9、11 2-3、2.8-4.4、4-6、5.2-8、7-11、9-13

S-K20 S-K21 2.1、2.5、3.6 1.7-2.1、2-3、2.8-4.4
TH-K20 S-K25 S-K35 5、6.6、9、11 4-6、5.2-8、7-11、9-13
15、19、22、29、35 12-18、16-22、18-26、24-34、30-40

TH-K60 S-K50 S-K65 42、54 34-50、43-65
S-K80 S-K95

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