シュナイダーエレクトリック EZ7RCCB‑63A 残留電流保護装置

Catalogue No.: EZ723263G

製品のポジショニング: Pure residual current サーキットブレーカー (RCCB, earth leakage only; no overload or short-circuit protection). Belongs to the discontinued Easy7 (これ7) economy project series, end-of-life since 30 6月 2023.

コア技術パラメータ (2Pバージョン, most common model)

定格電流入力: 63 あ

極: 2P (単相)

Rated voltage Ue: 230 Vと, 50 Hz

残留動作電流: 30 ミリアンペア, 瞬間トリップ

漏れタイプ: タイプA (detects AC leakage + 脈動DC漏れ; suitable for variable-frequency loads and switch-mode power supplies)

旅行タイプ: 電子 (ELE)

取り付け: DINレール規格, 幅 36 mm (2 モジュール)

規格: GB 16916 / IEC 61008‑1

Built-in test button. Must be fitted with an upstream MCB for short-circuit and overload protection (RCCB itself does not protect against short-circuit or overload faults).

Key Distinction

RCCB: Earth leakage protection only; always requires an upstream miniature circuit breaker.

EZ7RCBO: Combined earth leakage + 過負荷 + 短絡保護 (integrated RCBO). Do not mix these two types.

Replacement Selections (オリジナル シュナイダー alternatives)

1. Economy direct replacement: Easy9 RCCB (EZ9R series), 2P 63A 30mA Type A
2. High-end model: Acti9 iID (A9R series), 2P 63A 30mA Type A (電磁式, better anti-interference)
3. Integrated all-in-one option (RCBO): Easy9 RCBO / iC65N Vigi add-on residual current block

追加メモ

The entire EZ7 range (including EZ7RCCB and EZ7Vigi add-on leakage blocks) was officially discontinued by Schneider on 30 6月 2023. No further production runs will be made; stock on the market is leftover inventory. For new projects and long-term maintenance, switch directly to the Easy9 series to avoid future supply shortages.

Application Scope for EZ7RCCB‑63A (2P, 30ミリアンペア, タイプA, Electronic RCCB)

Precondition: Only earth leakage protection; no overload/short-circuit protection. An upstream MCB is mandatory. Type A detects AC + 脈動DC漏れ; 63A is the continuous current rating, not the fault trip current.

✅ 推奨アプリケーション

1. Main household residual current protection (single-phase 220V incoming supply)

Main incoming earth leakage protection for residential apartments and homes, with multiple downstream MCBs. Ideal for circuits with inverter air conditioners, variable-frequency washing machines and switch-mode power supply appliances (advantage of Type A). Centralised protection for wet-area circuits (バスルーム, balcony, kitchen socket circuits).

2. Single-phase main protection for small shops, convenience stores and retail premises

Mixed lighting + socket circuits with many PCs, レジ, LED drivers and variable-frequency equipment. Used in low-cost distribution boxes for ground-floor commercial premises to provide collective earth leakage protection.

3. Branch main RCD for small offices and computer rooms

Large numbers of adapters, UPS, computers and switch-mode power supplies. AC-type RCCBs are prone to nuisance tripping, so Type A is preferred for collective protection of a group of socket circuits.

4. Small single-phase commercial equipment control panels

Commercial water purifiers, ヒートポンプ, variable-frequency water heaters and small automation control cabinets. Earth leakage protection for metal-cased equipment.

5. Single-phase main protection for temporary site distribution boxes (economy projects)

High risk of personnel contact with metal power tools. 注記: Most construction site codes require time-delayed selective RCDs or site-specified residual current devices. This model is instantaneous 30mA, so verify local regulations before selection.

⚠️ Conditional Applications (with restrictions)

Single-phase AC side of small PV systems: Only for the AC side. Type A cannot be used on the DC side; DC-side protection requires Type B. The AC output of inverters contains pulsating DC components, which Type A can handle properly.

EV充電: Not recommended for standard AC slow chargers. Current national standards require Type B residual current protection for charging circuits.

❌ Not Suitable for These Scenarios

1. Cannot be used standalone without an upstream MCB; without short-circuit/overload protection, cables will burn out under fault conditions.
2. Pure resistive loads with no electronic equipment: AC-type RCCBs are cheaper; Type A is unnecessary.
3. Medical Class 1 locations, swimming pools and fountains: Normally require 10mA high-sensitivity RCDs or Type B / specialised selective residual current devices.
4. Three-phase circuits: This is a 2P single-phase device; not for three-phase applications.
5. Selective graded protection (to avoid cascading tripping): This is instantaneous with no time delay. Upstream and downstream 30mA RCDs will trip simultaneously.
6. Heavy industrial variable-frequency sites with severe harmonic interference: Electronic RCCBs suffer frequent nuisance tripping. Use electromagnetic iID models instead.

📌 Selection Summary (EZ7 discontinued; new projects use EZ9R 2P 63A Type A 30mA directly)

位置決め: Economy Type A main RCD for collective earth leakage protection of multiple circuits, especially circuits with large numbers of switch-mode power supplies and variable-frequency single-phase loads.

Typical circuit topology: Incoming supply → MCB (短絡 + 過負荷) → EZ7RCCB → multiple branch circuits.

Full List of Schneider Residual Current Devices (RCCB / RCBO / Vigi Add-on Blocks)

Classification definition:

✅ RCCB: Pure earth leakage protection; no overload/short-circuit protection, must be fitted with upstream MCB.

✅ RCBO: All-in-one device with earth leakage + 過負荷 + 短絡保護 (3-in-1).

✅ Vigi: Add-on residual current block, mounted separately onto iC65 / iC60 miniature circuit breakers.

Leakage types:

交流式: Only AC leakage

タイプA: 交流 + pulsating DC (インバータ & スイッチモード電源)

タイプB: Including smooth DC leakage (EV chargers, 太陽光発電インバーター, heavy-duty variable-frequency drives)

SI = Selective time-delay; prevents cascading tripping between upstream and downstream RCDs.

The entire EZ7 series is discontinued.

1. Acti9 iID (Premium Electromagnetic RCCB, Main Current Stock, A9R / A9Z part numbers)

Type A iID (For inverters, スイッチモード電源 & home appliances)

AC Type iID (Resistive loads only: incandescent lighting, standard sockets)

Type B iID (EV chargers, 太陽光発電システム, heavy inverters; A9Z range)

2. イージー9 (EZ9R Series, Economy RCCB, Direct Replacement for Obsolete EZ7, In Stock)

Easy9 RCBO (Integrated leakage + サーキットブレーカー, EZ9C series):

EZ9C45C1630: 1P+N C16 30mA; EZ9C45C2030, EZ9C45C3230, 等.

3. iC65N Vigi Add-on Residual Current Blocks (Used with iC65 MCBs, Not Standalone RCCBs)

Example part numbers: A9V53240 (2P 40A 30mA Type A Vigi); A9V52240 (交流式).

組み立て: iC65N MCB + Vigi add-on block = assembled RCBO.

4. EZ7 Easy7 (Discontinued Range, Your Model Is Here; EOL 30 6月 2023)

5. Integrated RCBO (Acti9 iC60N RCBO, A9D Prefix: 漏れ + 過負荷 + Short-circuit All-in-One)

6. Quick Selection Cross Reference (For EZ7RCCB‑63A: 2P 63A 30mA Type A)

Obsolete stock model: EZ723263G (製造中止)

Economy direct replacement: EZ9R39263 (Easy9 Type A)

Premium electromagnetic alternative: A9R53263 (Acti9 iID Type A)

Supplementary Selection Rules

1. RCCBs cannot be used without an upstream MCB; RCBOs can be used on individual final circuits without extra breakers.
2. EV chargers, DC circuits and heavy variable-frequency drives require Type B; circuits with switch-mode power supplies and inverters use Type A; pure resistive lighting can use cheaper AC type.
3. SI selective models are used on main feeders to prevent simultaneous tripping of upstream and downstream residual current devices.