1
Thermal (T- and TA-Line) T9-311
www.schurter.com/PG17_18_19
Circuit Breakers
Circuit Breaker for Equipment thermal, Threaded-neck type, 1 pole
T9-311: Threaded neck type with nut nickel-
plated
Description
- Threaded neck type,
- Thermal circuit breaker,
- 1-pole
- Reset type
- Cycling trip-free release
- Quick connect terminal 6.3 x 0.8 mm
Standards
- IEC 60934
- UL 1077
- CSA C22.2 235
- GB 17701
Applications
- Designed for standard and medical applications
- Power supplies
- Uninterruptible power supply
- Power tools
- Industrial appliances
- HVAC
- Household appliances
Weblinks
pdf-datasheet, html-datasheet, General Product Information, Approvals,
CE declaration of conformity, RoHS, CHINA-RoHS, REACH, e-Shop,
SCHURTER-Stock-Check, Distributor-Stock-Check, Detailed request for
product, Product News
Technical Data
Rated Voltage AC 240 V, 50 / 60 Hz
Rated Voltage DC 48 / 32 V, see approvals
Rated current 3-16 A, see approbations
Conditional short circuit ca-
pacity
IEC: Inc, PC1, AC 240 V: 2 kA
␣ UL / CSA: SC, AC 240 V DC 48 / 32 V:
2 kA, C1
Degree of protection front side IP 40
Endurance minimum IEC: 200% Ir, cos φ 0.6: min. 50 swit-
ching cycles
Endurance typical 3-8 A: 150% Ir, cos φ 0.9:
2500 switching cycles
␣ 10-16 A: 150% Ir, cos φ 0.9:
6000 switching cycles
Dielectric Strength 1500 VAC
Insulation resistance 500 VDC > 1000 MΩ
Ambient temperature 3 A: -5 °C to 60 °C
␣ 4 A: -5°C to 50 °C
␣ 5-16 A: -5 °C to 60 °C
Weight 9 - 13 g
Dimension
T9-211/311
36.110.4ø 15.4 10 19
58 3/8" -27UNS6.3x0.8
±0.2
±0.2
13.6
8.6
SW14
19
Pannel thickness s = 0.8 - 5.5 mm
2
Thermal (T- and TA-Line)
T9-311 www.schurter.com/PG17_18_19
Circuit Breakers
8.909.6
9.6
+0.10
0.00
Hexagonal nut TZZ12 / TZZ51
3/8" -27UNS 2.5
SW 14
Cover TZZ31für IP65 optional, see accessory
13.6
17
Approvals
Approval Rated current Rated voltage AC Rated voltage DC
UL 1077 3 - 12 A
14 - 16 A
240 V
240 V
48 V
32 V
CSA 22.2 235 3 - 12 A
14 - 16 A
240 V
240 V
48 V
32 V
IEC 60934 3 - 12 A
14 - 16 A
240 V
240 V
48 V
32 V
GB 17701 3 - 12 A
14 - 16 A
240 V
240 V
48 V
32 V
Typical internal resistance
Rated Current [A] Internal Resistance [mΩ]
3 65.0
4 21.6
5 23.6
6 16.3
7 15.3
8 12.9
10 7.3
12 7.0
14 4.8
15 4.3
16 3.9
3
Thermal (T- and TA-Line) T9-311
www.schurter.com/PG17_18_19
Circuit Breakers
Time-Current-Curves
Time in Seconds
2345
16
78 10
[min] [sec]
10'000
1'000
100
1
0.1
10
30
20
10
5
3
1
60
T9
5 A -16 A (TC-1)
4 A (TC-2)
1.05
1.35
1.45
Multiple of Rated Current In
Reference Temperature +23°
Time in Seconds
2345
16
78 10
[min] [sec]
10'000
1'000
100
1
0.1
10
30
20
10
5
3
1
60
T9
3 A (TC-2)
1.05
1.5
Multiple of Rated Current In
Reference Temperature +23°
Effect of ambient temperature
The units are calibrated for an ambient temperature of +23°C. To determine the rated cur-
rent 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 = 10 A; Environmental temperature = 60 °C; --> Correction factor
= 1.21; Resulting current = 12.1 A --> Fount to next higher rated current: 13 A
Accessory
Part Number Type Resources / 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
4
Thermal (T- and TA-Line)
T9-311 www.schurter.com/PG17_18_19
Circuit Breakers
Variants
Mounting Front printing Rated current Order Number
Threaded-neck type Rated current not printed on front 3.0 A 4404.0049
Threaded-neck type Rated current not printed on front 4.0 A 4404.0019
Threaded-neck type Rated current not printed on front 5.0 A 4404.0025
Threaded-neck type Rated current not printed on front 6.0 4404.0020
Threaded-neck type Rated current not printed on front 7.0 A 4404.0027
Threaded-neck type Rated current not printed on front 8.0 A 4404.0021
Threaded-neck type Rated current not printed on front 10.0 A 4404.0022
Threaded-neck type Rated current not printed on front 12.0 A 4404.0023
Threaded-neck type Rated current not printed on front 14.0 A 4404.0026
Threaded-neck type Rated current not printed on front 15.0 A 4404.0028
Threaded-neck type Rated current not printed on front 16.0 A 4404.0024
Availability for all products can be searched real-time:http://www.schurter.com/en/Stock-Check/Stock-Check-SCHURTER
Packaging Unit 100 Pcs
The specifications, descriptions and illustrations indicated in this document are based on current
information. All content is subject to modifications and amendments. Information furnished is believed
to be accurate and reliable. However, users should independently evaluate the suitability and test each
product selected for their own applications.
13.04.2015
