RCCB VFL001 - Interruttore automatico per correnti di guasto

Panoramica

The Kuangya VFL001 is a Type A RCCB designed to detect sinusoidal AC and pulsating DC residual currents, providing reliable protection against electric shock and electrical fires. It also supports Type AC operation for AC-only applications. With 2P/4P configurations, rated current from 16A to 100A, and sensitivities of 10/30/100/300 mA, VFL001 fits residential, commercial and light industrial distribution boards. Popular selections include rccb 16a 30ma, rccb 25a 30ma, rccb 40a 30ma, e rccb 63a 30ma.

How it works

When the residual current exceeds the preset threshold (IΔn), the internal toroidal sensor and trip unit of this tipo a rccb actuate the mechanism to disconnect the circuit within the specified breaking time. Short-time delay (ASi/G/KV) and selective (S) characteristics are available to coordinate with upstream/downstream devices and reduce nuisance tripping.

Caratteristiche principali

• Type A / AC residual-current detection (AC + pulsating DC for Type A).
• Pali: 2P / 4P; In: 16, 25, 32, 40, 63, 80, 100 A.
• IΔn options: 10 mA (2P/4P 16–40 A), 30 mA, 100 mA, 300 mA.
• Ue: 240 V~ (2P) / 415 V~ (4P); Ui: 500 V; 50/60 Hz.
• IΔm: 500 A (In 16–40 A), 630 A (63 A), 800 A (80 A), 1000 A (100 A).
• Inc = IΔc: 6 kA or 10 kA (with upstream SCPD coordination).
• Uimp: 6 kV; dielectric test 2.5 kV (1 min at power freq.).
• Resistenza: ≥20,000 mechanical / ≥10,000 electrical operations.
• IP20 terminals with cable/pin-type busbar connection; DIN rail EN 60715.
• Ambient −25 °C…+55 °C (daily avg ≤35 °C); storage −40 °C…+70 °C.

Technical Data

Standard	IEC/EN 61008-1
Model No.	VFL001
Pali	2P, 4P
Rated current In	16A, 25A, 32A, 40A, 63A, 80A, 100A
Rated Sensitivity IΔn	10 mA (2P/4P 16A–40A), 30 mA, 100 mA, 300 mA
Rated voltage Ue	2P: 240V~    4P: 415V~
Insulation voltage Ui	500 V
Rated frequency	50/60 Hz
Rated residual making & breaking capacity IΔm	500 A (In=16A, 25A, 32A, 40A); 630 A (In=63A); 800 A (In=80A); 1000 A (In=100A)
Short-circuit current Inc = IΔc	6000 A, 10000 A
Type (waveform sensed)	AC, A
Tripping time	Instantaneous / Short time delay / Selective
Break time under IΔn	≤100 ms (normal type)
Short time delay	10–300 ms (ASi, G, KV type)
Tipo selettivo	150–500 ms (S type)
Rated impulse withstand voltage (1.2/50) Uimp	6 kV
Dielectric test voltage at ind. freq. (1 min)	2.5 kV
Pollution degree	2
Electrical life	≥2000
Mechanical life	≥2000
Fault current indicator	Yes
Terminal protection degree	IP20
Ambient temperature (daily avg ≤35 °C)	−25 °C to +55 °C
Storage temperature	−40 °C to +70 °C
Terminal connection type	Cavo / sbarra di tipo Pin
Terminal size top/bottom for cable	25–35 mm² (typ.); 18–3 / 18–2 AWG notes per size class
Terminal size top/bottom for busbar	Pin-type; 10/16 mm² (typ.); 18–8 / 18–5 AWG notes
Tightening torque	2.5 N·m (≈ 22 in-lbs)
Montaggio	On DIN rail EN 60715 (35 mm) by fast clip device
Connection	From top and bottom

Applicazioni

• Residential distribution boards (bathrooms, kitchens, EV chargers with proper coordination).
• Commercial buildings (shops, offices, public facilities) requiring tipo a rccb for mixed AC/pulsating DC loads.
• Light industrial panels and machinery control, with selective or short-time delayed versions for coordination.

Installation & Selection Guide

1. Select the pole number (2P/4P) according to system voltage: 240 V~ (single-phase) or 415 V~ (three-phase).
2. Scegliere IΔn by application: 10/30 mA for personal protection; 100/300 mA for fire protection/selectivity.
3. For high inrush or EMC-sensitive loads, consider short-time delay (ASi/G/KV) or Selective S types.
4. Coordinate with upstream SCPD to meet Inc = IΔc 6 kA / 10 kA requirements.
5. Observe ambient limits (−25…+55 °C, daily avg ≤35 °C) and torque settings (2.5 N·m).

Certificazioni e standard

Conforme a IEC/EN 61008-1; CE & UKCA approvals. Terminal safety to IP20; pollution degree 2.

FAQ

What is the difference between Type A and Type AC?

Type AC detects sinusoidal AC only; Tipo A also detects pulsating DC components, which are common with modern power electronics.

When should I use short-time delay or S selective types?

Use short-time delay (10–300 ms) to ride through transient leakage or inrush; use S type (150–500 ms) to coordinate with downstream RCCBs and avoid nuisance tripping.

What upstream protection is required?

Select an SCPD so that the conditional residual short-circuit current rating Inc = IΔc of 6 kA or 10 kA is respected under fault conditions.