1
Thermal (T- and TA-Line) T12-MSM
https://www.schurter.com /PG17_18_19
Circuit Breakers
Circuit Breaker for Equipment thermal with Metal Actuator
See below:
Approvals and Compliances
Description
- Thermal circuit breaker
- Metal switch non-illuminated and illuminated
- 1-pole
- Quick connect terminals 6.3 x 0.8 mm or screw terminals
Applications
- Power supplies
- Uninterruptible power supply
- Power tools
- Household appliances
References
Component 1: circuit breakers T12-221; T12-222
Component 2: metal switch MSM LA 19; MSM LA 22
Component 3: Coupler
Weblinks
pdf datasheet, html-datasheet, General Product Information, Distributor-
Stock-Check, Detailed request for product, Product News
Technical Data
Rated Voltage AC AC 240 V: 50/60 Hz
Rated Voltage DC 28 V
Rated current range AC 0.05 - 15/16 A
Conditional short circuit ca-
pacity
IEC: Inc, PC1, AC 240 V: 1 kA
Dielectric Strength 50 Hz: > 1.5 kV
Impulse 1.2/50 μs: > 2.5 kV
Insulation Resistance 500 VDC > 100 MΩ
Endurance typical 2 x Ir: 5000 switching cycles
␣ Reset type
AC : 2 x Ir , cos φ 0.6 :
DC : 2 x Ir , L/R = 2 - 3 ms :
50 switching cycles
␣ Manual ON/OFF type
AC : 2 x Ir , cos φ 0.6 :
DC : 2 x Ir , L/R = 2 - 3 ms :
5000 switching cycles
Overload IEC: min. 40 trips
@ 6 x Ir, cos φ 0.6
␣ UL / CSA: min. 50 trips
@ 1.5 x Ir, cos φ 0.75
Allowable Operation Temp. -5 °C to 60 °C
Vibration Resistance ± 0.75 mm @ 5 - 60 Hz
acc. to IEC 60068-2-6, test Fc
7 G @ 60 - 500 Hz
acc. to IEC 60068-2-6, test Fc
Shock Resistance 60 G / 18 ms
acc. to IEC 60068-2-27, test Ea
Tripping Type Thermal
Actuation Type Manual ON/OFF
Shock Protection IK 07
Tightening Torque Stainless
Steel Nut
12 Nm for thread M19, 16 Nm for M22
Salt Spray Test (acc. to DIN
50021-SS)
24 h / 48 h / 96 h Residence Time
Supply Voltage 24 VDC Ring Illumination without series
resistor Point Illumination
Weight ca. 45 g
Approvals and Compliances
Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in Details about
Approvals
SCHURTER products are designed for use in industrial environments. They have approvals from independent testing bodies according to national
and international standards. Products with specific characteristics and requirements such as required in the automotive sector according to IATF
16949, medical technology according to ISO 134485 or in the aerospace industry can be offered exclusively with customer-specific, individual agree-
ments by SCHURTER.
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Thermal (T- and TA-Line)
T12-MSM https://www.schurter.com /PG17_18_19
Circuit Breakers
Product standards
Product standards that are referenced
Organization Design Standard Description
Designed according to IEC 60934 Circuit-breakers for equipment (CBE)
Designed according to UL 1077 Standard for Supplementary Protectors for Use in Electrical Equipment
Designed according to GB 17701 Circuit-breaker for equipment
Application standards
Application standards where the product can be used
Organization Design Standard Description
Designed for applications acc. IEC/UL 60950 IEC 60950-1 includes the basic requirements for the safety of information
technology equipment.
Compliances
The product complies with following Guide Lines
Identification Details Initiator Description
CE declaration of conformity SCHURTER AG The CE marking declares that the product complies with the applicable
requirements laid down in the harmonisation of Community legislation on
its affixing in accordance with EU Regulation 765/2008.
RoHS SCHURTER AG EU Directive RoHS 2011/65/EU
China RoHS SCHURTER AG The law SJ / T 11363-2006 (China RoHS) has been in force since 1 March
2007. It is similar to the EU directive RoHS.
REACH SCHURTER AG On 1 June 2007, Regulation (EC) No 1907/2006 on the Registration,
Evaluation, Authorization and Restriction of Chemicals 1 (abbreviated as
"REACH") entered into force.
Dimension [mm]
T12 MSM 19
6.3
11.5
ø 22
ø 15.5 M19 x 0.75
17.8
max. 10
1.7
1.8
76.65
15.5
ø 24
31
3
21
0.8
1)
1) only among MSM PI / RI quick connect terminal 2.8x0.5 mm
3
Thermal (T- and TA-Line) T12-MSM
https://www.schurter.com /PG17_18_19
Circuit Breakers
T12 MSM 22
6.3
11.5
ø 25
ø 17.7 M22 x 1
17.8
max. 9
1.7
1.8
76.65
15.5
31
3
21
0.8
1)
1) only among MSM PI / RI quick connect terminal 2.8x0.5 mm
T12 MSM 22 screw version
11.5
ø 25
ø 17.7 M22 x 1
17.8
max. 9
1.7
1.8
82.55
15.5
31
3
21
M4
1)
1) only among MSM PI / RI quick connect terminal 2.8x0.5 mm
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Thermal (T- and TA-Line)
T12-MSM https://www.schurter.com /PG17_18_19
Circuit Breakers
MSM 19 LA ST / MSM 19 LA RI
Drilling diagram
MSM 19 LA LE / MSM 19 LA PI /
MSM 19 LA RI optional
Drilling diagram
MSM 22 LA ST / MSM 22 LA RI
Drilling diagram
MSM 22 LA LE / MSM 22 LA PI /
MSM 22 LA RI optional
Drilling diagram
Point Illumination
Operating Data Forward Current max. Forward Voltage at 10 mA Forward Voltage at 8 mA Forward Voltage max.
LED red 30 mA 1,9 VDC 3,0 VDC
LED green 30 mA 2,1 VDC 3,0 VDC
LED blue 20 mA 3,7 VDC 4,5 VDC
Attention: Switches are delivered without series resistor.
Recommendation of series resistors for point illumination
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Thermal (T- and TA-Line) T12-MSM
https://www.schurter.com /PG17_18_19
Circuit Breakers
Typical internal resistance
Rated Current [A] Internal Resistance [Ω]
0.05 225.000
0.50 3.300
1.00 0.880
2.00 0.267
3.00 0.128
4.00 0.073
5.00 0.040
6.00 0.031
7.00 0.018
8.00 0.018
9.00 0.010
10.00 0.0087
11.00 0.0087
12.00 0.0087
13.00 0.0087
14.00 0.0070
15.00 0.0070
16.00 0.0055
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 0.87
0 0.90
10 0.95
23 1.00
30 1.05
40 1.12
50 1.20
60 1.30
Example: Rated current = 5 A, Environmental temperature = 50 °C, --> Correction factor =
1.2, Resulting current = 6.0 A
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Thermal (T- and TA-Line)
T12-MSM https://www.schurter.com /PG17_18_19
Circuit Breakers
Time-Current-Curves
Time in Seconds
10'000
60
2´000
1´000
500
200
100
50
20
10
5
2
1
0, 5
0, 3
0, 2
0, 1
[ sec ][ min ]
10
5
1
30
20
1,05 10854321,32
< 7,0 A
> 7,0 A
Multiple of Rated Current In
Reference Temperature +23°
Lettering
The last three digits in the order number define the lettering:
000 No Lettering
001-074 Standard Lettering
101- Customized Lettering
Lettering options see on Datasheet MSM LA 22
All Variants
Circuit Breakers Momentary Action
Switch
Order Number
Type Rated cur-connection type Type Illumination
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 non-illuminated 4410.9001
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 non-illuminated 4410.9002
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 non-illuminated 4410.9003
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 non-illuminated 4410.9004
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 Point Illumination, blue 4410.9005
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 Point Illumination, blue 4410.9006
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Point Illumination, blue 4410.9007
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Point Illumination, blue 4410.9008
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 Ring Illumination, blue, 24 VDC 4410.9009
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 Ring Illumination, blue, 24 VDC 4410.9010
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Ring Illumination, blue, 24 VDC 4410.9011
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Ring Illumination, blue, 24 VDC 4410.9012 █
T12-222-10 10A Bolts and nuts MSM LA 22 non-illuminated 4410.9017
T12-222-16 16A Bolts and nuts MSM LA 22 non-illuminated 4410.9018
T12-221-15 15A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 non-illuminated 4410.9019
T12-221-15 15A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Ring Illumination, blue, 24 VDC 4410.9021
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Thermal (T- and TA-Line) T12-MSM
https://www.schurter.com /PG17_18_19
Circuit Breakers
Circuit Breakers Momentary Action
Switch
Order Number
Type Rated cur-connection type Type Illumination
Coupler is included
█ Most Popular.
Availability for all products can be searched real-time:https://www.schurter.com/en/Stock-Check/Stock-Check-SCHURTER
Packaging Unit 10 Pcs
- Actuating elements in ESD safe packaging
- Screw nuts and sealing rings in a bag (enclosd in the box)
- Circuit breaker in a bag (enclosed in the box)
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.
18.12.2018
