RDB5-40(MCB) 4.5KA

The RDB5-40 Miniature Circuit Breaker (MCB) delivers reliable circuit protection for residential, commercial and industrial electrical setups. Rated for 50/60Hz AC systems up to 230V, it doubles as a switch for occasional circuit switching and automatically trips during overloads and short circuits — safeguarding your wiring and equipment from damage while reducing electrical safety risks.

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Product Detail

Application

1.Rated current up to 40A

2.Low temperature rise and power consumption

3.overload currents and short circuit currents protection

4.Good insulation between phases

5.Scenarios:residential buildings,commercial and industrial power distribution systems

6.Standard:IEC/EN60898-1

Model No.

Samples&Structures

Parameters


Pole	1P+N
Rated voltage Ue (V)	230
Insulation voltage Ui (V)	500
Rated frequency (Hz)	50/60
Rated current In (A)	1, 2, 3, 4, 5, 6, 10, 16, 25, 32, 40
Type of instantaneous release	C, D
Protective grade	IP 20
Breaking capacity (A)	4500
Mechanical life	20000 times
Electrical life	10000 times
Ambient temperature (℃)	-5~+40 (with daily average≤35)
Terminal connection type	Cable/ Pin type busbar