https://www.phoenixcontact.com/us/produkte/2800844
18.01.2013Page2/9
Thermomagnetic device circuit breaker-CB TM1 12A SFB
P-2800844
Technical data
General
Ambient temperature (storage/transport) -40 °C ... 80 °C
Inflammability class according to UL 94 V0
Degree of protection IP30 (Actuation area)
Mounting type On base element
Color gray
Number of positions 1
Insulating material group II
Pollution degree 2
Design Male
Technical data
Fuse type SFB
Rated surge voltage 2.5 kV (Increased insulation in actuation area)
Rated voltage 240 V AC (Ue according to IEC 60934)
Rated voltage 277 V AC (UL 1077)
Rated voltage 277 V AC (UL 508 - with plug-in base)
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 current I
n
12 A (IEC 60934)
Rated current I
n
12 A AC (inductive load according to UL 1077)
Rated current I
n
12 A DC (low-induction load according to UL 1077)
Rated current I
n
12 A DC (low-induction load according to UL 508 - with plug-in
base)
Rated insulation voltage U
i
277 V AC (UL 1077)
Rated insulation voltage U
i
250 V AC (IEC 60934)
Insulation resistance R
iso
:
> 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)
Required backup fuse 48 A
Rated short-circuit switching capacity I
cn
300 A (240 V AC)
Rated short-circuit switching capacity I
cn
600 A (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)
Voltage drop
0.13 V (at 1 x I
n
)
Cycles, max.
6000 (at 1 x I
n
)
