CB TM2 4A SFB P - Thermomagnetic device circuit breaker

2800872

Thermomagnetic device circuit breaker, 2-pos., tripping characteristic SFB, 2 changeover contacts, plug for base element.

Thermomagnetic device circuit breaker

General When mounted in rows, the nominal device current can be limited to just 80% or must be overdimensioned accordingly.

Product type Thermomagnetic device circuit breakers
Product family CB TM
Type Male
Number of positions 2
No. of channels 1
Insulation characteristics
Degree of pollution 2

Fuse type Automatic device
General
Rated voltage 80 V DC (IEC 60934)
80 V DC (UL 1077)
80 V DC (UL 508 - with plug-in base)
Rated insulation voltage Ui 277 V AC (UL 1077)
250 V AC (IEC 60934)
Rated current IN 4 A (IEC 60934)
inductive load according to UL 1077
4 A DC (low-induction load according to UL 1077)
4 A DC (inductive load according to UL 508 - with plug-in base)
4 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)
277 V AC / 1 A (Low-induction, maximum of 2000 cycles)
50 V DC / 1 A (Low-induction)
Type of actuation S type
Tripping method TM (thermomagnetic)
Tripping level Trip-free mechanism (positive)
Device resistance 90 mΩ
Required backup fuse ≥ 16 A (I > Icn)
Rated short-circuit switching capacity Icn 600 A (80 V DC)
Short-circuit switching capacity 1000 A AC (277 V AC)
1000 A DC (50 V DC)
Dielectric strength 3000 V AC (Actuation area)
1500 V AC (Main to auxiliary circuit)
1500 V AC (Open main circuit)
1000 V AC (Open auxiliary circuit)
1500 V AC (Position to position)
Switching cycles, max. 6000 (240 V AC / 1 x In)
3000 (80 V DC/1 x In)
Fuse SFB
Power dissipation 1.44 W (in nominal operation per channel)
Voltage drop 0.34 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 method pluggable
Connection method pluggable

Dimensional drawing
Width 24.6 mm
Height 45 mm
Depth 52 mm

Color gray (RAL 7042)
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)