Overcurrent Protector with Selective Protection-FTB1

THE FOURTH GENERATION LOW VOLTAGE APPARATUS

Realize Full Selective Protection of Terminal Distribution System

Technical data

Model & Spec		FTB1
Technical parameters
Standards		GB/T24350
Certifications		Q/320500 FT 16 (AT080238)
Pole number		1P, 1P+N, 3P, 3P+N
Rated current(A)		20, 25, 32, 40, 50, 63, 80, 100
Rated frequency(Hz)		50/60
Electrical characteristics
Rated operating voltage Ue(V)		AC230 (1P, 1P+N) AC400 (3P, 3P+N)
Rated insulation voltage Ui(V)		AC690
Rated impulse withstand voltage Uimp(kV)		6
Rated short-circuit capacity lcn(kA)		15
Dielectric voltage, power frequency, 1min(kV)		2
Isolation function		Yes
Class of pollution		3
Use cat. (overvoltage category)		III
Thermomagnetic Tripping characteristics		E-Type curve (5ln~6.25ln)
Mechanical charateristics
Contact status indicator		Green: open Red: close
Mechanical and electrical life (times)		10000
Polar and interlocking coordinating life (times)		200
IP rate		IP40 (installed inside the distribution box)
Mechanical shock resistance (GB/T2423.5)(m/s²)		150, continuously 11ms half-wave
Anti-vibration (GB/T2423.10)		5g-20 cycles, frequency 5…150…5Hz (load 0.8ln)
Anti-humid heat (GB/T2423.4)(℃/RH)		28 cycles (with 55/95…100)
Reference ambient temperature (℃)		30
Operating ambient temperature (℃)		-5~+40
Storage temperature (℃)		-40~+70
Installation characteristics
Terminal type		U-shaped terminal, tunnel type
Max. wiring capacity		Conductor connection 50 mm², busbar
Max. ultimate torque (N.m)		6
Tool		Pozi drive (double cross)
Installation		standard DIN rail (35mm), screw mounting
Inlet method		Upper inlet
Outline dim. (mm) (LWH)	1P	1122787
	1P+N	1125490
	3P	1128190
	3P+N	11210890