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4404.0001
CIRCUIT BREAKER, THERMAL, 240V/48V, 4A
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: SCHURTER
- Product type: Thermal Circuit Breakers
- ; CIRCUIT BREAKER, THERMAL, 240V/48V, 4A; Product Range:T9-611 Series; Current Rating:4A; No. of Poles:1 Pole; Voltage Rating VDC:48VDC; Voltage Rating VAC:240VAC; Circuit Breaker M
- SVHC: No SVHC (14-Jun-2023)
- No. of Poles: 1 Pole
- Product Range: T9-611 Series
- Current Rating: 4A
- Voltage Rating VAC: 240VAC
- Voltage Rating VDC: 48VDC
- Circuit Breaker Mounting: Snap In
| Delivery and price | |
|---|---|
| Units per pack | 2000 |
| Price | 1.75 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**Thermal (T- and TA-Line)** www.schurter.com /PG17_18_19 T9-611 Circuit Breaker for Equipment thermal, Snap-in type, Fuseholder style, 1 pole ## **Description** - Snap-in type from front side (0.8...2.0mm) - Thermal circuit breaker - 1-pole - On request available with elevaled glow-wire ratings - Quick connect terminals 6.3 x 0.8 mm ## **Unique Selling Proposition** - Reset type - Cycling trip-free release - Compact design - Different mounting possibilities ## **Standards** ## **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, DistributorStock-Check, Detailed request for product, Product News - Approval Reference Type: T9 - IEC 60934 - UL 1077 - CSA C22.2 No. 235 - GB 17701 |**Technical Data**|||| |---|---|---|---| |Rated Voltage AC|240 V, 50 / 60 Hz|Ambient temperature|3 A:-5°C to 60°C| |Rated Voltage DC|48 / 32 V, see approvals|4 A:-5°C to 50°C|| |Rated current|3-16 A, see approbations|5-16 A:-5°C to 60°C|| |Conditional short circuit ca-|IEC: Inc, PC1, AC 240 V: 2 kA|Weight|9-13 g| |pacity|||| |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, cosφ0.6: min. 50 swit-||| ||ching cycles||| |Endurance typical|3-8 A: 150% Ir, cosφ0.9:||| ||2500 switching cycles||| |10-16 A: 150% Ir, cosφ0.9:|||| ||6000 switching cycles||| |Dielectric Strength|1500 VAC||| |Insulation resistance|500 VDC > 1000 MΩ||| Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in General Product Information Circuit Breakers **1** **Thermal (T- and TA-Line)** www.schurter.com /PG17_18_19 T9-611 **Dimension** T9-611 **==> picture [471 x 75] intentionally omitted <==** **----- Start of picture text -----**<br> 3.4 ±0.3 34 ±0.5 10 ±0.3<br>14+0.15 0<br>10A<br>13.6 ±0.3 5 19 ±0.2<br>6.3x0.8mm<br>±0.3<br> ±0.3<br>8<br>ø15.4<br>+0.15 0 +0.15 0 +0.15 0<br>ø16 ø16 ø16<br>**----- End of picture text -----**<br> Pannel thickness s = 0.8 - 2.0 mm **==> picture [427 x 111] intentionally omitted <==** **----- Start of picture text -----**<br> Approval Rated current Rated voltage AC Rated voltage DC<br>UL 1077 3 - 12 A 240 V 48 V<br> 14 - 16 A 240 V 32 V<br>CSA 22.2 235 3 - 12 A 240 V 48 V<br>14 - 16 A 240 V 32 V<br>IEC 60934 3 - 12 A 240 V 48 V<br>14 - 16 A 240 V 32 V<br>GB 17701 3 - 12 A 240 V 48 V<br>14 - 16 A 240 V 32 V<br>**----- End of picture text -----**<br> ## **Typical internal resistance** **==> picture [172 x 149] intentionally omitted <==** **----- Start of picture text -----**<br> Rated Current [A] Internal Resistance [m Ω ]<br>3 65.0<br>4 21.6<br>5 23.6<br>6 16.3<br>7 15.3<br>8 12.9<br>10 7.3<br>12 7.0<br>14 4.8<br>15 4.3<br>16 3.9<br>**----- End of picture text -----**<br> Circuit Breakers **2** **Thermal (T- and TA-Line)** www.schurter.com /PG17_18_19 T9-611 ## **Time-Current-Curves** **==> picture [452 x 268] intentionally omitted <==** **----- Start of picture text -----**<br> [min] [sec] [min] [sec]<br>10'000 10'000<br>T9 T9<br>5 A -16 A (TC-1)<br>60 4 A (TC-2) 60 3 A (TC-2)<br>30 30<br>20 20<br>1'000 1'000<br>10 10<br>5 5<br>3 3<br>100 100<br>1 1<br>10 10<br>1 1<br>0.1 0.1<br>1 2 3 4 5 6 7 8 1 0 1 2 3 4 5 6 7 8 1 0<br>Multiple of Rated Current In Multiple of Rated Current In<br>Reference Temperature +23° Reference Temperature +23°<br>Time in Seconds Time in Seconds<br>1.05 1.35 1.45 1.05 1.5<br>**----- End of picture text -----**<br> ## **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: **==> picture [314 x 75] intentionally omitted <==** **----- Start of picture text -----**<br> Ambient temperature [°C] Correction factor<br>-5 0,85<br>+10 0,95<br>+23 1,00<br>+40 1,08<br>+60 1,21<br>**----- End of picture text -----**<br> 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** **==> picture [314 x 75] intentionally omitted <==** **----- Start of picture text -----**<br> Part Number Type Resources / Description<br>4404.0039 TZZ31 Protection cover for IP 65<br>4400.0420 TZZ11 Knurled nut nickel-plated<br>4400.0559 TZZ11-414 Knurled nut black<br>4400.0425 TZZ12 Additional hexagonal nut nickel-plated<br>4404.0072 TZZ51 Additional hexagonal nut PA 66<br>**----- End of picture text -----**<br> ## **Variants** **==> picture [420 x 114] intentionally omitted <==** **----- Start of picture text -----**<br> Mounting Front printing Rated current Order Number<br>Snap-in mounting from front side Rated current printed on front 3.0 A 4404.0018<br>Snap-in mounting from front side Rated current printed on front 4.0 A 4404.0001 █<br>Snap-in mounting from front side Rated current printed on front 5.0 A 4404.0007 █<br>Snap-in mounting from front side Rated current printed on front 6.0 4404.0002 █<br>Snap-in mounting from front side Rated current printed on front 7.0 A 4404.0009 █<br>Snap-in mounting from front side Rated current printed on front 8.0 A 4404.0003 █<br>**----- End of picture text -----**<br> Circuit Breakers **3** **Thermal (T- and TA-Line)** www.schurter.com /PG17_18_19 T9-611 **==> picture [420 x 328] intentionally omitted <==** **----- Start of picture text -----**<br> Mounting Front printing Rated current Order Number<br>Snap-in mounting from front side Rated current printed on front 10.0 A 4404.0004 █<br>Snap-in mounting from front side Rated current printed on front 12.0 A 4404.0005 █<br>Snap-in mounting from front side Rated current printed on front 14.0 A 4404.0008 █<br>Snap-in mounting from front side Rated current printed on front 15.0 A 4404.0010 █<br>Snap-in mounting from front side Rated current printed on front 16.0 A 4404.0006 █<br>Snap-in mounting from front side Rated current printed on front 90° shifted 4.0 A 4404.0066 █<br>Snap-in mounting from front side Rated current printed on front 90° shifted 5.0 A 4404.0067<br>Snap-in mounting from front side Rated current printed on front 90° shifted 6.0 4404.0068<br>Snap-in mounting from front side Rated current printed on front 90° shifted 8.0 A 4404.0069<br>Snap-in mounting from front side Rated current printed on front 90° shifted 15.0 A 4404.0071<br>Snap-in mounting from front side Rated current not printed on front 3.0 A 4404.0088<br>Snap-in mounting from front side Rated current not printed on front 4.0 A 4404.0089<br>Snap-in mounting from front side Rated current not printed on front 5.0 A 4404.0090<br>Snap-in mounting from front side Rated current not printed on front 6.0 4404.0091<br>Snap-in mounting from front side Rated current not printed on front 7.0 A 4404.0065<br>Snap-in mounting from front side Rated current not printed on front 8.0 A 4404.0092<br>Snap-in mounting from front side Rated current not printed on front 10.0 A 4404.0093<br>Snap-in mounting from front side Rated current not printed on front 12.0 A 4404.0063<br>Snap-in mounting from front side Rated current not printed on front 14.0 A 4404.0094<br>Snap-in mounting from front side Rated current not printed on front 15.0 A 4404.0095<br>Snap-in mounting from front side Rated current not printed on front 16.0 A 4404.0087<br>**----- End of picture text -----**<br> █ Most Popular. 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.~~ Circuit Breakers **4**
Updated at April 27, 2026
SCHURTER is a globally recognized innovator and manufacturer of high-quality electronic components, specializing in products that ensure a safe and clean supply of power. With a strong reputation in the electronics and PCB assembly industries, the company delivers reliable solutions engineered to protect critical circuits, streamline device operation, and optimize electrical performance across diverse applications. The core of our SCHURTER portfolio revolves around comprehensive circuit protection. We carry an extensive selection of standard and resettable fuses, accompanied by robust fuse holders, to safeguard sensitive electronics against overcurrent conditions. Furthermore, our offering features high-performance thermal circuit breakers and associated accessories, providing dependable protection and rapid reset capabilities for demanding industrial and commercial environments. Beyond fundamental circuit protection, SCHURTER excels in electromagnetic compatibility (EMC) and RFI suppression technologies. Our range includes precision-engineered power line filters and common mode chokes designed to mitigate electromagnetic interference and ensure signal integrity. Accompanied by specialized components such as AC/DC LED power supplies, SCHURTER provides the meticulous engineering and durability necessary for modern, high-reliability electronic design.
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