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ABB
D1B 125 TMF20/400 F F 4P
ABB
D1B 125 TMF20/400 F F 4P
Product Model
D1B 125 TMF20/400 F F 4P
Product ID
549108
Stock on Request
Last updated: 8/31/2026
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Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Product Net Width
101.6 mm
Product Net Height
130 mm
Product Net Depth / Length
64 mm
Product Net Weight
0.925 kg
Circuit Breaker Type to be Associated
Power Distribution
Product Main Type
SACE FORMULA BLD
Product Name
Moulded Case Circuit Breaker
Product Type
Automatic Circuit Breaker
Version
F
Current Type
AC
Electrical Durability
4000 cycle 120 cycles per hour
Mechanical Durability
10000 cycle 120 cycles per hour
Number of Poles
4P
Power Loss
at Rated Operating Conditions per Pole 3 W
Rated Current (I<sub>n</sub>)
20 A
Rated Frequency (f)
50/60 Hz
Rated Impulse Withstand Voltage (U<sub>imp</sub>)
6 kV
Rated Insulation Voltage (U<sub>i</sub>)
690 V AC
Rated Operational Voltage
500 V AC
Rated Service Short-Circuit Breaking Capacity (I<sub>cs</sub>)
(380 V AC) 9 kA (415 V AC) 9 kA (500 V AC) 2.5 kA
Rated Ultimate Short-Circuit Breaking Capacity (I<sub>cu</sub>)
(380 V AC) 18 kA (415 V AC) 18 kA (500 V AC) 5 kA
Rated Uninterrupted Current (I<sub>u</sub>)
125 A
Rated Voltage (U<sub>r</sub>)
500 V AC
Release
TMF
Release Type
TM
Short-Circuit Performance Level
B
Standards
IEC
Sub-type
D1
Terminal Connection Type
Front
ETIM 9
EC000228 - Power circuit-breaker for trafo/generator/installation protection
Object Classification Code
Q
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
Manufacturer ID
1SDA127858R1
D1B 125 TMF20/400 F F 4P ABB | INDSLT