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① Thermostat Specifications
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Electrical ratings
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U type : 125 VAC, max. 15A, resistance load
U type : 250 VAC, max. 10A, resistance load
‐‐ （min. 200mA）
K type:30 VDC, max. 1A
K type:120 VAC, 125VA (pilot duty)
‐‐ （MIN. DC5V 1mA）
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Ⅰ.Temperature setting rangeⅡ.Temperature tolerance
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Ⅰ.Temperature setting range
① 50 ～ 100℃
② 101 ～ 150℃
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Ⅱ.Temperature tolerance
① ±4℃
② ±5℃
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Circuit resistance(initial value)
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U type: 50 mΩ or less
K type: 10 mΩ or less
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Insulation resistance
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100 MΩ or greater [through the 500 VDC megger]
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Withstand voltage
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U type: 1,500 VAC/minute
K type: 1,200 VAC/minute
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Thermal resistance
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150℃
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Cold resistance
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-20℃
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Opening-closing durability
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5,000 times or more [under rated load]
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※Please contact specification of the approved models are slightly different from those shown above.
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② Model code
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US-603
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□
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□
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□
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□
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□□
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-
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□
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-
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□
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1
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2
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3
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4
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5
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6
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7
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1
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Contact material
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S : Ag・Ag alloy contact
K : Au crossbar contact
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2
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Contact model
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X : “OFF” for temperature rise
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3
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Terminal angle
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R : Horizontal terminal
T : Vertical terminal
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4
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Terminal model
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L : Terminal for positive lock conector 250 series
‐‐ (Brass/size 6.35×0.8, Sn-plated)
M : Terminal for positive lock conector 187 series
‐‐ (Brass/size 4.75×0.5, Sn-plated)
V : IEC730-1 (DIN46244-A4.8-0.8) quasi-terminal
‐‐ (Brass/size 4.8×0.8, Sn-plated)
S : For soldering
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5
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Cover materials
Holder model
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QO : Aluminum , no holder
QE : Aluminum , surface type ( free holder ) (23.8mm)
QL : Aluminum , surface type ( free holder ) (24.5mm)
KO : Aluminum , embedded type ( depth 5.0mm 、24.5mm)
AS : Stainless steel , surface type(24mm)
IO : Stainless steel , embedded type ( depth 4.6mm、24.5mm)
JO : Stainless steel , embedded type ( depth 5.2mm 、24.5mm)
QD : Aluminum , surface type ( free holder ) (30mm)
QM : Aluminum , surface type ( for mounting an M3 tapping screw ) 23.8mm)
FO : Stainless steel , no holdersurface type
FF : Stainless steel , surface type(25mm)
SO : Brass , screw-mount type
[M3,M4,M5,6-32UNC,8-32UNC,10-32UNC]
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6
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Standard model
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H : EN 60730 compliant products (U type)
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7
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Free Holer
Fixed model
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(QE) FB : Aluminum , surface type ( 23.8mm)
(QL) FB : Aluminum , surface type ( 24.5mm)
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· US-603UXRMQO-H・・・ Horizontal F187 Terminal、Aluminum , no holder
· US-603UXTMQE-H・・・Vertical F187 Terminal、Aluminum 、surface type ( free holder ) 23.8mm
· US-603UXTMQE-H-FB・・Vertical F187 Terminal、Aluminum 、surface type ( fixed holder ) 23.8mm
· US-603UXRLQL-H・・・Horizontal F250 Terminal、Aluminum 、surface type ( free holder ) 24.5mm
· US-603UXTMQL-H-FB・・Vertical F250 Terminal、Aluminum 、surface type ( fixed holder ) 24.5mm
· US-603UXTLKO-H・・・Vertical F250 Terminal、Aluminum 、embedded type depth 5mm, 24.5mm
· US-603UXRVAS-H・・・Horizontal IEC Terminal、Stainless steel 、surface type 24mm
· US-603KXTSIO・・・Vertical soldering Terminal、Stainless steel 、embedded type depth 4.6mm, 24.5mm
· US-603KXTSQE-FB・・Vertical soldering Terminal、Aluminum 、surface type ( fixed holder ) 23.8mm
④ List of international safety standards
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Model / Type
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Agency
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File No.
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Operating
temp.
Ratings
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Number of cycles
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Max.
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Max. Amperes
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Category
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cycles
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Volts
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Resistive
load
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Inductive
load
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FLA
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LRA
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US-603U-H
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UL
C-UL
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E52529
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160
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regulating
(MR)
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6,000
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AC 125
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15
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-
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-
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-
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AC 250
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10
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-
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-
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-
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AC 120
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-
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12
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-
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-
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AC 120
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-
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-
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5.8
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34.8
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AC 240
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-
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-
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2.9
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17.4
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US-603K
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UL
C-UL
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E52529
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160
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regulating
(MR)
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6,000
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DC 30
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1
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-
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-
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-
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AC 120
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125VA
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-
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-
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-
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US-603U-H
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VDE
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40026555
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160
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thermal
cut-out
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6,000
(MR)
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AC 250
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10
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-
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-
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-
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US-603K
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VDE
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40015226
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160
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thermal
cut-out
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6,000
(MR)
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DC 30
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1
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-
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-
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-
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AC 120
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125VA
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-
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-
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-
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⑤ Dimensional outline drawing
◆More detailed image → Click the image
