T9
Circuit breakers
www.schurter.com/pg17_18_19
Description
– Thermal circuit breaker
– Supplementary protector for general industrial use
– Cycling trip-free release
– Reset type
– Single pole
– Mounting style: T9-211: Threaded neck with nut PA 66
T9-311: Threaded neck with nut nickel plated
T9-611: Snap-in front side
T9-711: Snap-in rear side
Standards
– IEC 60934 (4 –16 A)
– UL 1077 (3–16 A)
– CSA C22.2 235 (3–16 A)
– GB 17701 (4 –16 A)
Applications
– Power supplies
– UPS
– Power tools
– Household appliances
– Industrial appliances
– Medical diagnostic appliances
– HVAC
Weblinks
Approvals: http://www.schurter.com/approvals
RoHS: http://www.schurter.com/rohs
T9-211: Threaded neck
with nut PA 66
Resettable Thermal Circuit Breaker, Single Pole, 3 –16 A
Technical Data
Rated voltage AC 240 V, 50/60 Hz
(see approvals) DC 48/32 V
Rated current 3 –16 A
Conditional short circuit capacitiy IEC: Inc, PC1, AC 240 V 2 kA
UL / CSA: SC, AC 240 V / DC 48/32 V 2 kA, C1
Overload rating UL / CSA OL0 240 VAC
OL0 48 VDC and 32 VDC
Degree of protection Accessible range IP 40
Termination range IP 00
Endurance minimum IEC: 200% In, cos phi 0.6 min. 50 cycles
Endurance typical 3 – 8 A: 150% In, cos phi 0.9 2500 cycles
10–16 A: 150% In, cos phi 0.9 6000 cycles
Dielectric strength AC 1500 V
Insulation resistance DC 500 V > 1000 MΩ
Ambient temperature 5–16 A -30 °C to 60 °C
4 A -30 °C to 50 °C
3 A -5 °C to 60 °C
Type of actuation Reset Type (manual) R
Type of tripping Cycling trip-free
Weight 9 – 13 g
Rated current Internal resistance
(mΩ)
Rated current Internal resistance
(mΩ)
3 A 65.0 10 A 7.3
4 A 21.6 12 A 7.0
5 A 23.6 14 A 4.8
6 A 16.3 15 A 4.3
7 A 15.3 16 A 3.9
8 A 12.9
Typical internal resistance
1
circuit breakers
T9-311: Threaded neck
with nut nickel plated
T9-611: Snap-in from front side T9-711: Snap-in from back side
Tripping Characteristics
2 3 4 51 6 7 8 1 0
Trip Time
[min] [sec]
Multiple of Rated Current [ x In ]
10'000
1'000
100
1
0.1
10
30
20
10
5
3
1
60
T9
Rated Current
Reference Temperature + 23˚C
5 A -16 A (TC-1)
Type
4 A (TC-2)
1.05
1.35
1.45
Effect of ambient temperature
The units are calibrated for an ambient temperature of +23°C. To
determine the rated current for a lower or higher ambient temperature,
use a correction factor (typical value) from the table below:
Ambient temperature (°C) Correction factor
-5 0,85
+10 0,95
+23 1,00
+40 1,08
+60 1,21
Example
Rated current at +23°C 10,0 A
Ambient temperature +60°C
Correction factor 1,21
Chosen rated current at +60°C
ambient temperature 10,0 A x 1,21 = 12,1 A
Approvals
Rated currents Rated voltage AC Rated voltage DC
UL UL 1077 3–12 A 240 V 48 V
14–16 A 240 V 32 V
UL CSA C22.2 235 3–12 A 240 V 48 V
14–16 A 240 V 32 V
VDE IEC 60934 4–12 A + 3 A pending 240 V 48 V
14–16 A 240 V 32 V
The specifications, descriptions and illustrations indicated in this document are based
on current information. All content is subject to modifications and amendments.
T9 Circuit breakers
www.schurter.com/pg17_18_19
2
2 3 4 51 6 7 8 1 0
Trip Time
[min] [sec]
Multiple of Rated Current
[ x In ]
10'000
1'000
100
1
0.1
10
30
20
10
5
3
1
60
+ 23˚C
T9
Rated Current
Reference Temperature
3 A (TC-2)
Type
1.05
1.5
Order Code
Basic type
T9 single pole, thermal overload switch, cycling trip-free
Mounting style
2 Threaded neck type with nut PA 66
3 Threaded neck type with nut nickel-plated
6 Snap-in type from front side (0.8…2.0 mm)
7 Snap-in type from rear side (0.5…3.0 mm)
Actuation type
1 Reset Type (R-type)
Terminal type
1 6.3 x 0.8 mm quick connect terminals IEC 61210
Front printing
C rated current not marked
P rated current printed on front (T9-611 only)
Rated current
3 A 10 A
4 A 12 A
5 A 14 A
6 A 15 A
7 A 16 A
8 A
T9 - 6 1 1 P - 10A
Accessories
Protection cover TZZ31 for IP 65 for type T9-211/311:
13.6
17
Order number Type description
4404.0039 TZZ31 Protection cover for IP 65
4400.0420 TZZ11 Knurled nut nickel-plated
4400.0559 TZZ11-414 Knurled nut black
4400.0425 TZZ12 Additional hexagonal nut nickel-plated
4404.0072 TZZ51 Additional hexagonal nut PA 66
3/8"-27UNS 2.5
SW 14
Hexagonal nut TZZ12 / TZZ51:
T9
Circuit breakers
www.schurter.com/pg17_18_19
3
circuit breakers
Dimensions
T9-211/311
T9-611
T9-711
36.110.4ø 15.4 10 19
58 3/8"-27UNS6.3x0.8
±0.3
±0.4
13.6
8.6
SW14
19
±0.3 ±0.6 ±0.3 ±0.2
±0.2
max. torque 0.6 Nm
8.99.6
9.6
+0.1
0
343.4ø 15.4 10 19
58 6.3x0.8
±0.3
±0.4
13.6
19
±0.3 ±0.5 ±0.3 ±0.2
±0.2
16
15
+0.15
0 16+0.15
0 16+0.15
0
+0.15
0
14+0.15
0
43.13.4ø 15.4 10 25
58 6.3x0.8
±0.3
±0.4
13.6
11
ø 15.5
±0.2 ±0.7 ±0.3 ±0.5
±0.3
13.9
15.9
0
-0.1
0
-0.1
Panel thickness S = 0.8–5.5 mm
Panel thickness S = 0.8–2.0 mm Recommended panel thickness: 0.8/1.2/1.6/2.0 mm
Panel thickness S = 0.5–3.0 mm
circuit breakers
T9 Circuit breakers
www.schurter.com/pg17_18_19
4
