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e_t_-104-PR
104-PR 104 Series
e-t-aCIR BRKR THRM 1.5A 250VAC 48VDC
The 104-PR series from E-T-A is a lineup of thermal circuit breakers designed for PCB-mounted applications. These breakers come in various ratings, ranging from 0.05A to 0.6A, making them suitable for a wide range of low-voltage circuits. Each breaker features a thermal tripping mechanism, which provides reliable protection against overcurrent conditions.
If you're working on projects involving small electronics, these breakers are a great choice. They're commonly used in consumer electronics, medical devices, and industrial control panels where space is limited and high reliability is essential. The PCB mounting design makes them easy to integrate into existing designs without the need for additional mounting hardware.
One thing worth noting is their robustness in handling both AC and DC voltages up to 250VAC and 48VDC. This versatility allows them to be used in a variety of power supply and battery-backed systems. Engineers tend to reach for this series when they need a compact solution that can handle moderate current levels and provide thermal overload protection.
These breakers are particularly useful in systems where you need to protect sensitive components from damage due to excessive current draw. Their thermal response is calibrated to trip before significant heat buildup occurs, preventing damage to connected components and ensuring the overall system remains operational.
Frequently Asked Questions
104-PR 104 - Part List
57 parts in total| Mfr Part # | Quantity Available | Price | Category | Standard Package | Voltage Rating | Number of Poles | Current Rating (Max) | Breaker Type | Actuator Type | Mounting Type | Product | Factory Pack Quantity | RoHS | Height | Length | Mounting Style | Termination Style | Type | Illumination | Manufacturer | Product Type | Operating Temperature | Standards | Dielectric Strength | Insulation Resistance | Termination | Primary Material | Size / Dimension | Color - Connectors | Mounting Hole Diameter | Features | Application Specifics | Operating Temperature - Junction | Lead Time | Subcategory |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 104-PR-1.2A CIRCUIT BREAKER HORZ PCB 1.2A CIR BRKR THRM 1.2A 250VAC 48VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 1: ¥121.312 | - | 10 | 250V | 1 | 1.2A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant By Exemption | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal Overcurrent Circuit Breaker | Not Illuminated | E-T-A | Thermal Circuit Breaker | - 20 C to + 60 C | - | - | - | - | - | - | - | - | - | - | - | - | - |
 104-PR-5A CIRCUIT BREAKER HORZ PCB 5A CIR BRKR THRM 5A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 5A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 108 | 1: ¥132.532 | - | 10 | 250V | 1 | 5A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | Lead free / RoHS Compliant | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | 56 Days | Circuit Breaker |
104-PR-1A CIRCUIT BREAKER HORZ PCB 1A CIR BRKR THRM 1A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 1A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 19 | 1: ¥132.532 | - | 10 | 250V | 1 | 1A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
104-PR-8A CIRCUIT BREAKER HORZ PCB 8A CIR BRKR THRM 8A 250VAC 48VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 23 | 1: ¥132.532 | - | 10 | 250V | 1 | 8A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | Lead free / RoHS Compliant | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal Overcurrent Circuit Breaker | Not Illuminated | E-T-A | Thermal Circuit Breaker | - 20 C to + 60 C | - | - | - | - | - | - | - | - | - | - | - | 56 Days | Circuit Breaker |
104-PR-10A CIRCUIT BREAKER HORZ PCB 10A CIR BRKR THRM 10A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 10A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 20 | 1: ¥132.532 | - | 10 | 250V | 1 | 10A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
104-PR-3A CIRCUIT BREAKER HORZ PCB 3A CIR BRKR THRM 3A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 3A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 1: ¥132.532 | - | 10 | 250V | 1 | 3A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
104-PR-0.5A CIRCUIT BREAKER HORZ PCB .5A CIR BRKR THRM 500MA 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 0.5A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 21 | 1: ¥132.60 | - | 10 | 250V | 1 | 500mA | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
104-PR-2A CIRCUIT BREAKER HORZ PCB 2A CIR BRKR THRM 2A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 2A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 100 | 1: ¥132.60 | - | 10 | 250V | 1 | 2A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
104-PR-7A CIRCUIT BREAKER HORZ PCB 7A CIR BRKR THRM 7A 250VAC 48VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 38 | 1: ¥132.60 | - | 10 | 250V | 1 | 7A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | Lead free / RoHS Compliant | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal Overcurrent Circuit Breaker | Not Illuminated | E-T-A | Thermal Circuit Breaker | - 20 C to + 60 C | - | - | - | - | - | - | - | - | - | - | - | 56 Days | Circuit Breaker |
| 10 | 10: ¥102.6256 | - | 10 | 250V | 1 | 100mA | Thermal | Push to Reset | PCB | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
104-PR-0.2A CIRCUIT BREAKER HORZ PCB .2A CIR BRKR THRM 200MA 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 0.2A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 1: ¥87.38 | - | 10 | 250V | 1 | 200mA | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
104-PR-0.3A CIRCUIT BREAKER HORZ PCB .3A CIR BRKR THRM 300MA 250VAC 48VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 10: ¥102.6256 | - | 10 | 250V | 1 | 300mA | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant By Exemption | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal Overcurrent Circuit Breaker | Not Illuminated | E-T-A | Thermal Circuit Breaker | - 20 C to + 60 C | - | - | - | - | - | - | - | - | - | - | - | - | - |
104-PR-0.4A CIRCUIT BREAKER HORZ PCB .4A CIR BRKR THRM 400MA 250VAC 48VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 10: ¥102.6256 | - | 10 | 250V | 1 | 400mA | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant By Exemption | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal Overcurrent Circuit Breaker | Not Illuminated | E-T-A | Thermal Circuit Breaker | - 20 C to + 60 C | - | - | - | - | - | - | - | - | - | - | - | - | - |
104-PR-0.6A CIRCUIT BREAKER HORZ PCB .6A CIR BRKR THRM 600MA 250VAC 48VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 10: ¥102.476 | - | 10 | 250V | 1 | 600mA | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant By Exemption | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal Overcurrent Circuit Breaker | Not Illuminated | E-T-A | Thermal Circuit Breaker | - 20 C to + 60 C | - | - | - | - | - | - | - | - | - | - | - | - | - |
104-PR-0.8A CIRCUIT BREAKER HORZ PCB .8A CIR BRKR THRM 800MA 250VAC 48VDC CircuitbreakerthermalPCB0.8A Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 1: ¥121.312 | - | 10 | 250V | 1 | 800mA | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal Overcurrent Circuit Breaker | Not Illuminated | E-T-A | Thermal Circuit Breaker | - 20 C to + 60 C | - | - | - | - | - | - | - | - | - | - | - | - | - |
104-PR-1.5A CIRCUIT BREAKER HORZ PCB 1.5A CIR BRKR THRM 1.5A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 1.5A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 1: ¥91.80 | - | 10 | 250V | 1 | 1.5A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
104-PR-1.8A CIRCUIT BREAKER HORZ PCB 1.8A CIR BRKR THRM 1.8A 250VAC 48VDC CircuitbreakerthermalPCB1.8A Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 10: ¥102.6256 | - | 10 | 250V | 1 | 1.8A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal Overcurrent Circuit Breaker | Not Illuminated | E-T-A | Thermal Circuit Breaker | - 20 C to + 60 C | - | - | - | - | - | - | - | - | - | - | - | - | - |
104-PR-2.5A CIRCUIT BREAKER HORZ PCB 2.5A CIR BRKR THRM 2.5A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 2.5A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 69 | 1: ¥132.60 | - | 10 | 250V | 1 | 2.5A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
104-PR-3.5A CIRCUIT BREAKER HORZ PCB 3.5A CIR BRKR THRM 3.5A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 3.5A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 50: ¥97.5202 | - | 10 | 250V | 1 | 3.5A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | RoHS Compliant Part | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | - | - |
 104-PR-4A CIRCUIT BREAKER HORZ PCB 4A CIR BRKR THRM 4A 250VAC 48VDC Circuit Breaker; Therm; Push; Cur-Rtg 4A; PCB; 1 Pole; Vol-Rtg 240/48VAC/VDC Circuit Breakers Thermal circuit breaker, integral type, single pole E-T-A | 10 | 1: ¥167.008 | - | 10 | 250V | 1 | 4A | Thermal | Push to Reset | PCB | Thermal Circuit Breakers | 1 | Lead free / RoHS Compliant | 11 mm | 27.6 mm | PCB | Solder Pin | Thermal | Not Illuminated | 104 Series | Thermal Circuit Breaker | - 20 C to + 60 C | UL, CSA, VDE Approvals, IP40 (Operating Area) | 3000 VAC | 100 Megohms @ 500 VDC | Solder Pin | Circuit Breaker | 0.756 L x 0.433 W x 1.09 H in. | Black | 0.059 D in. | Approved to CBE Standard EN 60934 (IEC 60934) | Motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, and caravans. | 60 °C | 56 Days | Circuit Breaker |