T9-817  Circuit Breaker for Equipment thermal vertical, THT terminals for PCB mounting, 1 pole

Series: T9-817

Circuit Breaker for Equipment thermal vertical, THT terminals for PCB mounting, 1 pole

New_Logo Free Sample Request

7 Variants


  • Thermal circuit breaker
  • 1-pole
  • On request available with elevaled glow-wire ratings
  • THT connectors

Unique Selling Proposition

  • Reset type
  • Cycling trip-free release
  • Compact design
  • Different mounting possibilities


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

Rated Voltage AC


Rated Voltage DC


Rated current

4-12 A 

Conditional short circuit capacity Inc

IEC 60934: PC1, AC 240 V: 2 kA 

UL / CSA: SC, AC 240 V DC 48 / 32 V: 2 kA, C1 

Degree of protection front side


Endurance minimum

IEC: 200% Ir, cos φ 0.6: min. 50 switching cycles 

Endurance typical

4-8 A: 150% Ir, cos φ 0.9:
2500 switching cycles

10-12 A: 150% Ir, cos φ 0.9:
6000 switching cycles

Dielectric Strength

1500 VAC

Insulation Resistance

500 VDC > 1000 MΩ 

Allowable Operation Temp.

5-12 A: -5 °C to 60 °C 

4 A: -5°C to 50 °C 

Soldering Methods



245 °C / 3 sec acc. to IEC 60068-2-20 / Test Ta, method 1

Resistance to Soldering Heat

260 °C / 10 sec acc. to IEC 60068-2-20 / Test Tb, method 1A


approx. 12.5 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: T9

Approval Logo Certificates Certification Body Description
Approval marks VDE VDE VDE Certificate Number: 40038016
Approval marks cURus UL UR File Number: E71572
Approval marks ccc CCC CCC Certificate Number: 2020970307003348

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 Suitable for applications acc. IEC/UL 62368-1 Audio/video, information and communication technology equipment - Part 1: Safety requirements


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.
Approval marks Zulassung_Symbol_UKCA SCHURTER AG The UKCA marking declares that the product complies with the applicable requirements laid down in the British Amendment of Regulation (EC) 765/2008.
Environment_Safety RoHS_Logo_color_CMYK_tif SCHURTER AG Directive RoHS 2011/65/EU, Amendment (EU) 2015/863
Environment_Safety China_RoHS_e_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.


Dimension [mm]

Approval Rated current Rated Voltage AC Rated Voltage DC
curus UL 1077 4 - 12 A 240 V 48 V
curus CSA 22.2 235 4 - 12 A 240 V 48 V
VDE IEC 60934 4 - 12 A 240 V 48 V
ccc_s_Tabelle GB 17701 4 - 12 A 240 V 48 V

Typical internal resistance per pole

Rated Current [A] Internal Resistance [mΩ]
4 26.3
5 24.1
6 19.0
7 18.0
8 14.8
10 13.0
12 12.7


Time in Seconds
Multiple of Rated Current In

Ambient temperature +23°

Effect of ambient temperature

Ambient Temperature [°C] Correction factor
-5 0,85
+10 0,95
+23 1,00
+40 1,08
+60 1,21


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