Type 45 Air Circuit Breaker (AC400~800V)-Air Circuit Breaker-Electrical Equipment Supply-Zhejiang Leidun Electric Co., LTD

Model Description Terms of use Main technical parameters Appearance and Installation dimensions (mm)

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Leidun Company Code

ACB

Design No.

Ampere Frame Rating

Poles

Rated Current

（A）

High Breaking Capacity Marked "H"

● Ambient Air Temperature：-5℃ to +40℃, the average temperature for 24 hours does not exceed +35℃.

● Atmospheric Conditions：The relative humidity of the air should not exceed 50% at a maximum temperature of +40℃. At lower temperatures, higher relative humidity is acceptable, such as reaching 90% at 25℃. It is important to consider the condensation on the product surface due to temperature changes.

● Installation Location：The altitude shall not exceed 2000m. The vertical tilt of the circuit breaker should not exceed 5°.

● Pollution Level：III

● Installation Category：Circuit breaker with a maximum rated working voltage 690V, undervoltage release coil, and power transformer primary coil are used for installation category IV. The auxiliary circuits and control circuits are installed in category III.

● Use Category：B

Model		LDW9-2000
Ultimate short circuit breaking capacity (kA) Icu		80(400V) 50(690V)
Operating short circuit breaking capacity (kA) Ics		65(400V) 40(690V)
Rated short-time withstand current (kA) Icw/1s		65(400V) 40(690V)
Rated Current (A) In		630	800	1000	1250	1600	2000
No. of poles (P)		3、4
Rated Voltage (V) Ue		AC400、AC690
Rated insulation voltage (V) Ui		AC1000
Rated impulse withstand voltage (kV) Uimp		12
Maximum continuous current of the N pole IN (A)		100%In
Inherent breaking time (ms)		23~32
Smart Controller	Standard (M)	●	●	●	●	●	●
	Communication type(H)	●	●	●	●	●	●
Electrical endurance (Cycles)		AC400V ：500 AC690V ：500
Mechanical endurance (Cycles)	No maintenance	2500
	With maintenance	10000
Wiring Method		Horizontal、Vertical
Net Weight (kg)	Withdrawable 3P/4P	67.5/80	70/84	70/84	70/84	70/84	79/90.5
	Fixed 3P/4P	42/52	44/52	44/52	44/52	44/52	45/54
Gross Weight (kg)	Withdrawable 3P/4P	79.5/94	82/98	82/98	82/98	82/98	91/104.5
	Fixed 3P/4P	54/66	56/66	56/66	56/66	56/66	57/68

Model		LDW9-3200、LDW9-4000
Ultimate short circuit breaking capacity (kA) Icu		100(400V) 80(690V)
Operating short circuit breaking capacity (kA) Ics		85(400V) 65(690V)
Rated short-time withstand current (kA) Icw/1s		85(400V) 65(690V)
Rated Current (A) In		2000	2500	3200	4000
No. of poles (P)		3、4	3、4	3、4	3、4
Rated Voltage (V) Ue		AC400、AC690
Rated insulation voltage (V) Ui		AC1000
Rated impulse withstand voltage (kV) Uimp		12
Maximum continuous current of the N pole IN (A)		100%In		50%In
Inherent breaking time (ms)		23~32
Smart Controller	Standard (M)	●	●	●	●
	Communication type (H)	●	●	●	●
Electrical endurance (Cycles)		AC400V ：500 AC690V ：500
Mechanical endurance (Cycles)	No maintenance	2500
	With maintenance	9500
Wiring Method		Horizontal、Vertical
Net Weight (kg)	Withdrawable 3P/4P	90.5/116	90.5/116	103/130	132/172
	Fixed 3P/4P	55/68	55/68	56.5/71	72/-
Gross Weight (kg)	Withdrawable 3P/4P	105.5/135	105.5/135	118/149	147/191
	Fixed 3P/4P	68/83	68/83	69.5/86	85/-

Model		LDW9-6300
Ultimate short circuit breaking capacity (kA) Icu		120(400V) 85(690V)
Operating short circuit breaking capacity (kA) Ics		100(400V) 75(690V)
Rated short-time withstand current (kA) Icw/1s		100(400V) 75(690V)
Rated Current (A) In		4000	5000	6300
No. of poles (P)		3、4	3、4	3、4
Rated Voltage (V) Ue		AC400、AC690
Rated insulation voltage (V) Ui		AC1000
Rated impulse withstand voltage (kV) Uimp		12
Maximum continuous current of the N pole IN (A)		50%In
Inherent breaking time (ms)		23~32
Smart Controller	Standard (M)	●	●	●
	Communication type(H)	●	●	●
Electrical endurance (Cycles)		AC400V ：500 AC690V ：500
Mechanical endurance (Cycles)	No maintenance	2000
	With maintenance	4000
Wiring Method		Horizontal and vertical
Net Weight (kg)	Withdrawable 3P/4P	210/223	210/223	233/-
Gross Weight (kg)	Withdrawable 3P/4P	232/257	232/257	257/-

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