Overview

The VML01 rccb 63a 30ma detects earth leakage and disconnects the circuit before harm occurs,
helping prevent electric shock and fire hazards caused by insulation faults. It is available in 2-pole and 4-pole
versions for single-phase and three-phase boards and is suitable for housing, tertiary, and light-industrial use.

Key Features

Poles: 2P / 4P
Rated current (In): 16, 25, 32, 40, 63, 80, 100 A
Rated sensitivity (IΔn): 10 / 30 / 100 / 300 mA
Rated voltage (Ue): 240 V~ (2P) / 415 V~ (4P)
Insulation voltage (Ui): 500 V | Frequency: 50/60 Hz
Residual making & breaking (IΔm): 500 / 630 / 800 / 1000 A (per In group)
Conditional short-circuit (Inc = IΔc): 6000 A / 10000 A (with upstream SCPD)
Impulse withstand (Uimp): 6 kV
Dielectric test: 2.5 kV for 1 min (power frequency)
Terminal protection: IP20
Terminal capacity (cable): 25–35 mm²
Tightening torque: 2.5 N·m
Environmental limits: −25 °C … +55 °C (ambient); −40 °C … +70 °C (storage)

Technical Data

Standard	IEC/EN 61008-1
Model No.	VML01
Poles	2P, 4P
Rated current (In)	16A, 25A, 32A, 40A, 63A, 80A, 100A
Rated sensitivity (IΔn)	10 mA, 30 mA, 100 mA, 300 mA
Rated voltage (Ue)	2P: 240 V~; 4P: 415 V~
Insulation voltage (Ui)	500 V
Rated frequency	50/60 Hz
Residual making & breaking (IΔm)	500 A (In 16–40 A); 630 A (In 63 A); 800 A (In 80 A); 1000 A (In 100 A)
Conditional short-circuit (Inc = IΔc)	6000 A; 10000 A (with upstream SCPD)
Impulse withstand (Uimp)	6 kV
Dielectric test	2.5 kV (1 min, power frequency)
Terminal protection degree	IP20
Ambient temperature	−25 °C to +55 °C
Storage temperature	−40 °C to +70 °C
Terminal capacity (cable)	25–35 mm²
Tightening torque	2.5 N·m

Applications

Three-phase panels using a rccb 63a 30ma (4P) for additional personal protection
Single-phase boards (2P) in residential and commercial buildings
Installations coordinated with upstream SCPD for 6/10 kA conditional rating

rccb 63a 30ma VML01 Kuangya 2P/4P 16–100A 10/30/100/300 mA