コンタクタ,サーキットブレーカー,ソーラーインバーター,電気メーター,太陽電池
| モデルセグメント | 意味 | 詳細な説明 |
| UA | シリーズコード | Special capacitor switching contactor シリーズ, designed exclusively for reactive power compensation capacitor switching |
| 16 | 定格電流 | 16あ (AC-6b, 400V capacitor load), corresponding to approx. 12.5kVar compensation capacity |
| 30 | 主な接点構成 | 3-pole all normally open (いいえ) 主な連絡先, suitable for 3-phase capacitor banks |
| 10 | 補助接点構成 | 1 通常開 (いいえ) + 0 通常閉 (ノースカロライナ州) 補助接点, used for control circuit signal feedback |
| RA | Special Feature | Built-in damping resistor (Resistor-Assisted), suppresses capacitor switching inrush current; no additional reactor required |
- 主要な技術仕様
| パラメータのカテゴリ | 技術データ | 備考 |
| 基本パラメータ | ||
| ブランド | ABB | プロダクトID: 1SBL181024R8010 (220-230V) / 1SBL181024R8510 (380-400V) |
| タイプ | 3-pole capacitor switching contactor | Block type design, IECに準拠 60947-4-1 |
| 定格動作電圧 | 690Vと (50/60Hz) | Maximum working voltage |
| 主回路パラメータ | ||
| 定格電流 (AC-6b) | 16A @ 400V | Special rating for capacitor loads; inrush current withstand >100×In |
| 定格短時間耐電流 | 140あ (0.1s) / 100あ (1s) | Low-voltage system short-circuit withstand capability |
| 電気的耐久性 | 250,000 オペレーション (うえ<500V) / 100,000 オペレーション (500V≤Ue≤690V) | Mechanical life for capacitor switching cycles |
| 制御回路パラメータ | ||
| コイル電圧 | 標準: 220-230V/380-400V (50Hz); 230-240V/400-415V (60Hz) | Custom voltage levels available |
| コイル消費電力 | Pick-up: 約. 180バージニア州; 保持: 約. 22バージニア州 | AC laminated magnetic circuit design |
| Control Circuit Protection | Recommended 10A gG fuse | Standard protection for auxiliary circuits |
| 物理的な & 環境パラメータ | ||
| 取付タイプ | 35mm DINレール取付 | Self-locking structure, ネジは必要ありません |
| 全体の寸法 | W44mm × H90mm × D74mm | 標準的なモジュラー設計 |
| 保護クラス | IP20 (コイル & 補助端子) | IEC準拠 60529 |
| 動作温度 | -25°C ～ +60°C | Suitable for industrial environment range |
| 端子の種類 | ネジ端子, main circuit compatible with 1/2×18-10 AWG wires | トルク: 9 in·lb (main/auxiliary/control circuit) |
- 構造的 & 機能的な特徴
3.1 コア構造
Built-in Damping Resistor Module: 3 independent resistors connected in series to the main circuit, realizing capacitor pre-charging and limiting switching peak current to a safe level.
Special Contact Design: Main contacts adopt anti-welding alloy material to enhance arc erosion resistance and withstand frequent inrush current impact.
Mechanical Interlock Mechanism: Ensures resistors close before main contacts and open after main contacts, completing a full current-limiting protection cycle.
Modular Accessory System: Supports expansion with auxiliary contacts, surge suppressors and other accessories.
3.2 主な機能
Inrush Current Suppression: Built-in resistors reduce switching inrush current from 100×In to about 10×In, greatly lowering contact ablation risk.
Reactor-Free Design: RA series with inherent current limiting; no need for external series reactors, saving installation space and cost.
安全な操作: Capacitor bank must discharge to ≤50V before re-energization to prevent secondary inrush current caused by residual charge.
Signal Feedback: 1NO auxiliary contact for status indication and interlock control.
- Optional Accessories List
| Accessory Type | モデル例 | 機能の説明 |
| 補助接点ブロック | UA-01 / UA-10 | Add 1NC or 1NO auxiliary contact to expand control circuit functions |
| サージサプレッサ | RC1-230 / RC1-400 | Absorbs back EMF during coil breaking to protect control circuits |
| 機械的インターロック | 2900000 | Interlocks two contactors to prevent reverse connection of capacitor banks |
| Mounting Bracket | Compatible with 35mm DIN rail | Improves mounting stability for vibration-prone environments |
- ブランド間の同等品 & Replacement List
| ブランド | 同等モデル | 主な違い | アプリケーションシナリオ |
| シュナイダー | LC1DK1610 | Also with built-in current-limiting resistor, 16A rated, 1補助接点なし | Direct replacement with ABB in reactive power compensation cabinets |
| シーメンス | 3RT2016-1BB41 | Special capacitor type with built-in resistor, 16あ, 1いいえ, suitable for 400V systems | Industrial automation systems; check mounting dimension differences |
| ABB | UA16-30-10 (Non-RA) | No built-in resistor; requires external reactor, 低コスト | Light-load applications with small inrush current or systems with existing reactors |
| イートン | DILM17-10C | Capacitor contactor, 17あ, 1いいえ, built-in current-limiting circuit | Replacement for 16A class with higher margin |
- 選定ガイドライン & 代替ソリューション
6.1 主要な選択パラメータ
Capacitor Capacity: UA16-30-10RA suitable for 3-phase capacitor banks ≤12.5kVar@400V / ≤20kVar@600V.
コイル電圧: Must match control supply voltage; common 220V/380V to avoid coil burnout.
取り付け: Confirm 35mm standard DIN rail; special bracket required for non-standard rails.
環境条件: Derate for high temperature (>40℃) with derating factor 0.8~0.9.
6.2 Recommended Alternative Solutions
| アプリケーションシナリオ | Recommended Solution | 利点 |
| Standard Reactive Compensation Cabinet | UA16-30-10RA (標準バージョン) | Built-in resistor, no extra parts needed, 簡単な取り付け |
| High-Frequency Switching (>1200 サイクル/時間) | UA16-30-10RA + サージサプレッサ | Extend contact life, reduce electromagnetic interference |
| Large-Capacity Capacitor Bank (>12.5kVar) | UA25-30-10RA (25あ) | Fits larger capacity with consistent protection level |
| Budget-Limited Retrofit Project | UA16-30-10 + External Reactor | Lower cost, requires extra installation space |
6.3 インストール & メンテナンスノート
- Before Installation: Ensure capacitors are fully discharged to ≤50V to avoid residual charge hazards.
- 配線: Main circuit wire cross-section ≥1.5mm²; control circuit ≥0.75mm²; ensure terminals are fully tightened.
- メンテナンスサイクル: コンタクトの磨耗を毎回点検する 6 月; recommend replacement after 100,000 cumulative operations.
- トラブルシューティング: If contactor fails to operate, first check coil voltage and control circuit fuse.
ABB UA16-30-10RAは、低電圧無効電力補償システム用に設計された専用のダンピング抵抗内蔵コンデンサコンタクタです。.
3つの直列抵抗がスイッチング突入電流を抑制, 接点を保護し、寿命を延ばす.
16A AC-6b 定格で、400V の 12.5kVar コンデンサバンクに適しています, 3-極 NO メイン接点と 1NO 補助接点で標準制御要件を完全に満たす.
Compared with ordinary contactors, the RA series needs no external reactor and features simple installation, making it an ideal choice for industrial and building power distribution reactive compensation systems.
Complete Model List of ABB UA Series Capacitor Switching Contactors
- モデルの命名規則
ABB UA series capacitor contactors adopt a unified naming format for quick parameter identification:
| モデルセグメント | 意味 | Available Options |
| UA | シリーズコード | Special capacitor switching contactor |
| XX | 定格電流 (あ, AC-6b @400V) | 16, 26, 30, 50, 63, 75, 95, 110, 140 |
| 30 | 主な接点構成 | 3-pole NO, designed for 3-phase capacitor banks |
| XY | 補助接点構成 | 00(0NO+0NC), 10(1NO+0NC), 01(0NO+1NC), 11(1NO+1NC) |
| RA | Special Feature | Built-in damping resistor for inrush current suppression |
| -VV | コイル電圧 | 24V, 110V, 220V, 380V etc. (AC/DC optional) |
- Full Model List by Current Rating
2.1 16シリーズ (≤12.5kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA16-30-00 | UA16-30-00RA | 0NO+0NC | 220V/380V | 1SBL181022R8010(標準) / 1SBL181024R8010(RA) |
| UA16-30-10 | UA16-30-10RA | 1NO+0NC | 220V/380V | 1SBL181022R8010(標準) / 1SBL181024R8010(RA) |
| UA16-30-01 | UA16-30-01RA | 0NO+1NC | 220V/380V | 1SBL181022R8110(標準) / 1SBL181024R8110(RA) |
| UA16-30-11 | UA16-30-11RA | 1NO+1NC | 220V/380V | 1SBL181022R8210(標準) / 1SBL181024R8210(RA) |
2.2 26シリーズ (≤20kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA26-30-00 | UA26-30-00RA | 0NO+0NC | 220V/380V | 1SBL281022R8010 / 1SBL281024R8010 |
| UA26-30-10 | UA26-30-10RA | 1NO+0NC | 220V/380V | 1SBL281022R8010 / 1SBL281024R8010 |
| UA26-30-01 | UA26-30-01RA | 0NO+1NC | 220V/380V | 1SBL281022R8110 / 1SBL281024R8110 |
| UA26-30-11 | UA26-30-11RA | 1NO+1NC | 220V/380V | 1SBL281022R8210 / 1SBL281024R8210 |
2.3 30シリーズ (≤25kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA30-30-00 | UA30-30-00RA | 0NO+0NC | 220V/380V | 1SBL281022R8010 / 1SBL281024R8010 |
| UA30-30-10 | UA30-30-10RA | 1NO+0NC | 220V/380V | 1SBL281022R8010 / 1SBL281024R8010 |
| UA30-30-01 | UA30-30-01RA | 0NO+1NC | 220V/380V | 1SBL281022R8110 / 1SBL281024R8110 |
| UA30-30-11 | UA30-30-11RA | 1NO+1NC | 220V/380V | 1SBL281022R8210 / 1SBL281024R8210 |
2.4 50シリーズ (≤40kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA50-30-00 | UA50-30-00RA | 0NO+0NC | 220V/380V | 1SBL341022R8010 / 1SBL341024R8010 |
| UA50-30-10 | UA50-30-10RA | 1NO+0NC | 220V/380V | 1SBL341022R8010 / 1SBL341024R8010 |
| UA50-30-01 | UA50-30-01RA | 0NO+1NC | 220V/380V | 1SBL341022R8110 / 1SBL341024R8110 |
| UA50-30-11 | UA50-30-11RA | 1NO+1NC | 220V/380V | 1SBL341022R8210 / 1SBL341024R8210 |
2.5 63シリーズ (≤50kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA63-30-00 | UA63-30-00RA | 0NO+0NC | 220V/380V | 1SBL371022R8010 / 1SBL371024R8010 |
| UA63-30-10 | UA63-30-10RA | 1NO+0NC | 220V/380V | 1SBL371022R8010 / 1SBL371024R8010 |
| UA63-30-01 | UA63-30-01RA | 0NO+1NC | 220V/380V | 1SBL371022R8110 / 1SBL371024R8110 |
| UA63-30-11 | UA63-30-11RA | 1NO+1NC | 220V/380V | 1SBL371022R8210 / 1SBL371024R8210 |
2.6 75シリーズ (≤60kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA75-30-00 | UA75-30-00RA | 0NO+0NC | 220V/380V | 1SBL381022R8010 / 1SBL381024R8010 |
| UA75-30-10 | UA75-30-10RA | 1NO+0NC | 220V/380V | 1SBL381022R8010 / 1SBL381024R8010 |
| UA75-30-01 | UA75-30-01RA | 0NO+1NC | 220V/380V | 1SBL381022R8110 / 1SBL381024R8110 |
| UA75-30-11 | UA75-30-11RA | 1NO+1NC | 220V/380V | 1SBL381022R8210 / 1SBL381024R8210 |
2.7 95シリーズ (≤75kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA95-30-00 | UA95-30-00RA | 0NO+0NC | 220V/380V | 1SBL401022R8010 / 1SBL401024R8010 |
| UA95-30-10 | UA95-30-10RA | 1NO+0NC | 220V/380V | 1SBL401022R8010 / 1SBL401024R8010 |
| UA95-30-01 | UA95-30-01RA | 0NO+1NC | 220V/380V | 1SBL401022R8110 / 1SBL401024R8110 |
| UA95-30-11 | UA95-30-11RA | 1NO+1NC | 220V/380V | 1SBL401022R8210 / 1SBL401024R8210 |
2.8 110シリーズ (≤90kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA110-30-00 | UA110-30-00RA | 0NO+0NC | 220V/380V | 1SBL411022R8010 / 1SBL411024R8010 |
| UA110-30-10 | UA110-30-10RA | 1NO+0NC | 220V/380V | 1SBL411022R8010 / 1SBL411024R8010 |
| UA110-30-01 | UA110-30-01RA | 0NO+1NC | 220V/380V | 1SBL411022R8110 / 1SBL411024R8110 |
| UA110-30-11 | UA110-30-11RA | 1NO+1NC | 220V/380V | 1SBL411022R8210 / 1SBL411024R8210 |
2.9 140シリーズ (≤110kVar @400V)
| スタンダードモデル | RA Built-in Resistor Type | 補助接点 | Typical Coil Voltage | Product ID Example |
| UA140-30-00 | UA140-30-00RA | 0NO+0NC | 220V/380V | 1SBL421022R8010 / 1SBL421024R8010 |
| UA140-30-10 | UA140-30-10RA | 1NO+0NC | 220V/380V | 1SBL421022R8010 / 1SBL421024R8010 |
| UA140-30-01 | UA140-30-01RA | 0NO+1NC | 220V/380V | 1SBL421022R8110 / 1SBL421024R8110 |
| UA140-30-11 | UA140-30-11RA | 1NO+1NC | 220V/380V | 1SBL421022R8210 / 1SBL421024R8210 |
- コイル電圧オプション (Universal for All Series)
| 電圧の種類 | Common Ratings | アプリケーションシナリオ |
| 交流 | 24V, 48V, 110V, 220-230V, 380-400V, 400-415V | Standard industrial control circuits |
| 直流 | 24V, 48V, 110V, 220V | 防爆, fire control or low-noise environments |
| Wide Voltage | 200-240Vと, 380-440Vと | Areas with large grid voltage fluctuation |
- キーの選択手順
4.1 Standard Type vs RA Built-in Resistor Type
標準 (Non-RA): Requires external reactor for inrush suppression; 低コスト, suitable for systems with existing reactors.
RA Built-in Resistor Type: 3 built-in damping resistors reduce switching inrush from 100×In to approx.10×In; no extra components needed for easy installation.
4.2 Auxiliary Contact Selection
00: No auxiliary contacts, for simple control loops.
10 / 01: 1 いいえ / 1 NC for status indication and interlock.
11: 1NO+1NC for complex control logic such as automatic switching systems.
4.3 Capacitor Capacity Reference (@400V)
| Contactor Rated Current | Max Compatible Capacitor | 応用 |
| 16あ | 12.5kVar | Small commercial buildings & 居住の |
| 30あ | 25kVar | Medium industrial equipment & オフィスビル |
| 63あ | 50kVar | Large factories & commercial centers |
| 110あ | 90kVar | Large production lines & regional substations |
- 付属品 & Expansion Options
| Accessory Type | モデル例 | 説明 |
| 補助接点ブロック | UA-01 / UA-10 | Add 1NC or 1NO; expandable up to 4 補助接点 |
| サージサプレッサ | RC1-230 / RC1-400 | Absorbs coil reverse EMF to protect control circuits |
| 機械的インターロック | 2900000 | Interlocks two contactors to prevent capacitor bank reverse connection |
| Mounting Bracket | For 35mm DIN rail | Enhance stability for vibration environments |
ABB UA series capacitor switching contactors cover full current range 16A~140A, providing standard type and RA built-in resistor type.
Flexible auxiliary contact configurations (00/10/01/11) and global compatible coil voltages are available.
The RA series effectively reduces switching inrush current, protects contacts and extends service life, making it the ideal solution for low-voltage reactive power compensation systems.
![NXC-65 from the Kunlun Series by CHINT Electric is a 3-pole AC contactor, rated at 65A in the NXC series. The full model is typically expressed as NXC-65 [Coil Voltage] [Frequency]](https://www.bestcontactor.com/wp-content/uploads/2026/04/ScreenShot_2026-01-30_132315_324-419x560.png "CHINT Electric の Kunlun シリーズの NXC-65 は 3 極 AC コンタクタです, NXCシリーズで定格65A. 完全なモデルは通常、NXC-65 として表されます。 [コイル電圧] [頻度]")
