Official DistributorSKU
MPN
CB TM1 8A SFB P
Weight
0.044 kg
Series CB-TM
CB TM1 8A SFB P - Thermomagnetic device circuit breaker
Thermomagnetic device circuit breaker, 1-pos., tripping characteristic SFB, 1 changeover contact, plug for base element.
- Individually adjustable with protective plugs
- Fuse protection for above-average conductor lengths with the aid of the SFB characteristic curve
- Protective plug with fixed nominal current value as protection against unintentional changes
- Increased safety with electrical isolation in the event of errors
- Modular expansion possible thanks to the uniform, plug-in housing concept
- Compact design with precise nominal current levels
- Sophisticated remote signaling concept enables monitoring from any location
- Maximum overcurrent protection across long cable paths via SFB trigger characteristic
- Supply/remote signaling can be bridged with CLIPLINE complete accessories
Technical Specifications
Notes
| General | When mounted in rows, the nominal device current can be limited to just 80% or must be overdimensioned accordingly. |
Product properties
| Product family | CB TM |
| Type | Male |
| Number of Positions | 1 |
| No. of channels | 1 |
Insulation characteristics
| Degree of pollution | 2 |
Electrical properties
| Fuse type | Automatic device |
General
| Rated voltage | 50 V DC (IEC 60934) |
| Rated voltage | 50 V DC (UL 1077) |
| Rated voltage | 50 V DC (UL 508 - with plug-in base) |
| Rated insulation voltage Ui | 277 V AC (UL 1077) |
| Rated insulation voltage Ui | 250 V AC (IEC 60934) |
| Rated current IN | 8 A (IEC 60934) |
| Rated current IN | 8 A DC (low-induction load according to UL 1077) |
| Rated current IN | 8 A DC (low-induction load according to UL 508 - with plug-in base) |
| Rated surge voltage | 2.5 kV (Increased insulation in actuation area) |
| Insulation resistance Riso | > 100 MΩ (500 V DC) |
| Auxiliary circuit | 277 V AC / 0.5 A (Low-induction) |
| Auxiliary circuit | 277 V AC / 1 A (Low-induction, maximum of 2000 cycles) |
| Auxiliary circuit | 50 V DC / 1 A (Low-induction) |
| Type of actuation | S type |
| Tripping method | TM (thermomagnetic) |
| Tripping level | Trip-free mechanism (positive) |
| Device resistance | 18 mΩ |
| Required backup fuse | 32 A (I > Icn) |
| Rated short-circuit switching capacity Icn | 600 A (50 V DC) |
| Short-circuit switching capacity | 1000 A AC (277 V AC) |
| Short-circuit switching capacity | 1000 A DC (50 V DC) |
| Dielectric strength | 3000 V AC (Actuation area) |
| Dielectric strength | 1500 V AC (Main to auxiliary circuit) |
| Dielectric strength | 1500 V AC (Open main circuit) |
| Dielectric strength | 1000 V AC (Open auxiliary circuit) |
| Switching cycles, max. | 6000 (at 1 x In) |
| Fuse | SFB |
| Power dissipation | 1.28 W (in nominal operation per channel) |
| Voltage drop | 0.14 V (at 1 x In) |
Auxiliary contact
| Minimum operating voltage Umin DC | 10 V |
| Maximum operating voltage Umax DC | 240 V |
| Maximum operating voltage Umax. AC | 240 V |
| Minimum operating current Imin | 10 mA |
| Max. operating current Imax | 1 A |
Connection data
| Connection Method | pluggable |
| Connection Method | pluggable |
Dimensions
| Width | 12.3 mm |
| Height | 45 mm |
| Depth | 52 mm |
| Complete module width | 12.3 mm |
| Complete module height | 90 mm |
| Complete module depth | 77.3 mm |
Material specifications
| Color | gray (RAL 7042) |
| Color | black (RAL 9005) |
| Flammability rating according to UL 94 | V-0 |
| Insulating material group | II |
Mechanical data
| Open side panel | No |
Ambient conditions
| Degree of Protection | IP30 (Actuation area) |
| Ambient Temperature (Operation) | -30 °C ... 60 °C |
| Ambient temperature (storage/transport) | -40 °C ... 80 °C |
| Humidity test | 240 h, 95 % RH, 40 °C |
| Shock (operation) | 30g (IEC 60068-2-27, Test Ea) |
| Vibration (Operation) | 8g (IEC 60068-2-6, Test Fc) |
UL approval
| Identification | UL Listed UL 508 |
| Identification | UL/C-UL Recognized UL 1077 |
CSA
| Identification | CSA CAN/CSA-C22.2 No. 235-04 |
Shipbuilding approval
| Identification | DNV GL |
Standards and Regulations
| Standards/specifications | EN 60934 |
Mounting
| Mounting Type | on base element |
Accessories
1212124 - Cutting tool, for separating individual jumper bars from FBS ... plug-in bridges and EB ... insertion bridges
Why Proax for Phoenix Contact 2800842?
Proax is an authorized distributor of Phoenix Contact 2800842 and one of Phoenix Contact's largest distributors in North America. Our highly skilled in-house technical team is ready to assist with any technical needs.
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Additional Information
| Pack Size | 1 |
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