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T13-612 Circuit Breaker for Equipment thermal, Snap-in type, Reset type, Screw terminals

Series: T13-612

Circuit Breaker for Equipment thermal, Snap-in type, Reset type, Screw terminals

Free Sample Request


  • Snap-in version
  • Thermal circuit breaker
  • 1 pole
  • Reset type
  • Wide current range
  • High breaking capacity
  • Bolts and nuts

Unique Selling Proposition

  • Compact design
  • Positively trip-free release
  • Available with cover
  • Different mounting possibilities


  • Power supplies
  • Uninterruptible power supply
  • Power tools
  • Household appliances

Rated Voltage AC

AC 240/277 VAC, see approbations

Rated Voltage DC

28 VDC

Rated current range AC

0.05 - 30 A

Conditional short circuit capacity Inc

IEC: Inc, PC1, AC 240 V: 1 kA 

Short circuit capacity Icn

at In < 7 A/240 VAC : 8 x In 

at In ≥ 7 A/240 VAC : 400 A 

AC/DC 28 V : 400 A 

Degree of Protection

from front side IP40 acc. to IEC 60529

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: 3000 switching cycles

Endurance minimum

Reset type  AC : 2 x Ir , cos φ 0.6 :  DC : 2 x Ir , L/R = 2 - 3 ms :  50 switching cycles


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

± 1.5 mm @ 10 - 60 Hz
acc. to IEC 60068-2-6, test Fc
10 G @ 60 - 500 Hz
acc. to IEC 60068-2-6, test Fc

Shock Resistance

100 G / 6 ms
acc. to IEC 60068-2-27, test Ea

Tripping Type


Actuation Type

Reset type 


ca. 10 g

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 13485 or in the aerospace industry can be offered exclusively with customer-specific, individual agreements by SCHURTER.


The approval mark is used by the testing authorities to certify compliance with the safety requirements placed on electronic products.

Approval Reference Type: T13

Approval Logo Certificates Certification Body Description
Approval marks VDE VDE VDE Certificate Number: 123283
Approval marks UR UL UL File Number: E71572
Approval marks CSA CSA CSA Certification Record: LR 37712
Approval marks ccc CCC CCC Certificate Number: 2012010307571195

Product standards

Product standards that are referenced

Organization Design Standard Description
Partners IEC_Certification_Body Designed according to IEC 60934 Circuit-breakers for equipment (CBE)
Partners UL_Certification_Body Designed according to UL 1077 Standard for Supplementary Protectors for Use in Electrical Equipment
Partners CSA_Certification_Body Designed according to CSA C22.2 No. 235 Supplementary Protectors
Partners CCC_Certification_Body Designed according to GB 17701 Circuit-breaker for equipment

Application standards

Application standards where the product can be used

Organization Design Standard Description
Partners IEC_Certification_Body Designed for applications acc. IEC/UL 60950 IEC 60950-1 includes the basic requirements for the safety of information technology equipment.


The product complies with following Guide Lines

Identification Details Initiator Description
Approval marks CE Selbsteklaration 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.
Environment_Safety RoHS_Logo_color_CMYK_tif SCHURTER AG Directive RoHS 2011/65/EU, Amendment (EU) 2015/863
Environment_Safety China_RoHS_50_non_konform_eps 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.
Environment_Safety 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.


Picture(s) Selection of product pictures to display a specific variant of the type


Type Corresponds to a product series and includes various distinct variants. On the type of descriptive data are summarized, eg in the data sheet

Order Number

Order Number Unique part number for placing an order

Configuration key

Configuration key The configuration key of a product consists of the composite key values, which describe the different kinds of attribut distinction.


Comment CAD drawings are for modeling purposes only

Model Description

Model Description Abbreviated description of the CAD model


IGS Also mentioned as IGES ( Initial Graphics Exchange Specification). Common program indipendent interchange format for 3D CAD data.


Step Also mentioned as STEP ( Standard for the Exchange of Product Model Data). Common program indipendent interchange format for 3D CAD data standardized according ISO standard.


Parasolid Parasolid modeling kernel is a 3D CAD systems. It is developed by a separate business unit within the Unigraphics Solutions (UGS), now Siemens PLM Software.


DXF (Drawing Interchange Format) is a specified by the Autodesk file format for CAD data exchange, and was developed for the 2D-CAD program AutoCAD. A DXF file describes a CAD model as plain text to the ASCII standard.

Dimension [mm]




Approval Rated current Rated Voltage AC Rated Voltage DC
UR_Tabelle UL 1077 0.05...30 A 277 V 28 V
CSA_Tabelle CSA C22.2 No. 235 0.05...30 A 277 V 28 V
VDE EN 60934 0.05...30 A 240 V -
ccc_s_Tabelle GB 17701 0.05...30 A 240 V -

Typical internal resistance per pole

Rated Current [A] Internal Resistance [Ω]
0.05 376.500
0.50 4.40
1.00 1.10
2.00 0.31
3.00 0.14
4.00 0.068
5.00 0.048
8.00 0.026
9.00 0.0125
10.00 0.0125
11.00 0.0085
12.00 0.0085
13.00 0.0085
14.00 0.007
15.00 0.007
16.00 0.007
17.00 0.0047
18.00 0.0047
19.00 0.0047
20.00 0.004
21.00 0.0035
22.00 0.003
23.00 0.003
24.00 0.003
25.00 0.003
26.00 0.0022
27.00 0.002
28.00 0.002
29.00 0.002
30.00 0.002


Time in Seconds
Multiple of Rated Current In

Reference Temperature +23°

Effect of ambient temperature

Ambient Temperature [°C] Correction factor
-5 0.88
0 0.90
10 0.95
23 1.00
30 1.05
40 1.10
50 1.18
60 1.26

Date Subcategory Language Title Download
White Paper English White Paper Selecting rated currents for CBE
PCS English T13-612-7...30
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