CB TM1 8A SFB P 2800842 PHOENIX CONTACT Thermomagnetic device circuit breaker, 1-pos., tripping characterist.. View larger
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CB TM1 8A SFB P 2800842 PHOENIX CONTACT Thermomagnetic device circuit breaker, 1-pos., tripping characterist..




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Thermomagnetic device circuit breaker, 1-pos., tripping characteristic SFB, 1 PDT contact, plug for base element.

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Programmable Logic Controllers Plcs

TRABTECH Power and Signal Quality - PHOENIX CONTACT

Over Current Protection

* Brand new product in its original packaging covered by the warranties and certifications provided by PHOENIX_CONTACT

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Installation instructionsWhen mounted in rows, the nominal device current can be limited to just 80% or must be overdimensioned accordingly.
Flammability rating according to UL 94V0
Mounting typeOn base element
Number of positions1
Insulating material groupII
Pollution degree2

Electrical data

Fuse typeSFB
Rated surge voltage2.5 kV (Increased insulation in actuation area)
Rated voltage50 V DC (IEC 60934)
50 V DC (UL 1077)
50 V DC (UL 508 - with plug-in base)
Rated current IN8 A (IEC 60934)
8 A DC (low-induction load according to UL 1077)
8 A DC (low-induction load according to UL 508 - with plug-in base)
Rated insulation voltage Ui277 V AC (UL 1077)
250 V AC (IEC 60934)
Required backup fuse32 A
Contact type1 PDT
Power dissipation1.28 W (in nominal operation per channel)
Insulation resistance Riso> 100 MΩ (500 V DC)
Type of actuationS type
Tripping methodTM (thermomagnetic)
Tripping levelTrip-free mechanism (positive)
Rated short-circuit switching capacity Icn600 A (50 V DC)
Short-circuit switching capacity Ik1000 A AC 277 V AC
1000 A DC 50 V DC
Dielectric strength3000 V AC (Actuation area)
1500 V AC (Main to auxiliary circuit)
1500 V AC (Open main circuit)
1000 V AC (Open auxiliary circuit)
Voltage drop0.14 V (at 1 x In)
Switching cycles, max.6000 (at 1 x In)
Contact type1 PDT
Auxiliary circuit277 V AC / 0.5 A (Low-induction)
277 V AC / 1 A (Low-induction, maximum of 2000 cycles)
50 V DC / 1 A (Low-induction)
Minimum auxiliary contact operating voltage10 V
Maximum auxiliary contact operating voltage240 V
240 V
Minimum auxiliary contact operating current10 mA
Maximum auxiliary contact operating current1 A
Vibration resistance, frequency57 Hz ... 500 Hz (IEC 60068-2-6, Fc, sine)
Vibration resistance, amplitude± 0.61 mm (10 - 57 Hz)
Vibration resistance, acceleration80 m/s²
Vibration resistance, test duration10 (Frequency cycles/axis)


Height45 mm
Width12.3 mm
Depth52 mm
Complete module height90 mm
Complete module width12.3 mm
Complete module depth77.3 mm

Ambient conditions

Ambient temperature (operation)-30 °C ... 60 °C
Ambient temperature (storage/transport)-40 °C ... 80 °C
Humidity test240 h, 95% RH, 40°C
Shock (operation)30g (IEC 60068-2-27, Test Ea)
Degree of protectionIP30 (Actuation area)

Standards and Regulations

Standards/specificationsEN 60934
UL 1077 UL/C-UL recognized
UL 508 UL/C - UL listed
CSA 22.2 No. 235-041

Datasheet - PDF

Title: Language: Size: Type:
PHOENIX CONTACT-2800842-CB TM1 8A SFB P English 577 Kbytes PHOENIX CONTACT-2800842-CB TM1 8A SFB P

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