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
QUINT-DIODE/40 (2938963) is a 24VDC diode redundancy module manufactured by フエニックス・コンタクト. It is designed for parallel redundancy of two 20A power supplies or capacity expansion for a single 40A circuit. This model is discontinued. The official replacement is QUINT4-DIODE/12-24DC/2X20/1X40 (2907719). It features reverse polarity protection, low voltage drop (0.5V) and efficiency over 97%, ideal for critical systems such as industrial automation and process control.
- 型式コードの説明
| モデルセグメント | 説明 |
| QUINT | Product line identifier for Phoenix QUINT POWER power supplies |
| DIODE | Diode-type redundancy module (passive redundancy, no active current sharing) |
| 40 | Maximum output current: 40あ (supports 2×20A redundant input) |
| 注文番号. | 2938963 (Unique factory part number) |
| アップグレード交換 | QUINT4-DIODE/12-24DC/2X20/1X40 (注文番号: 2907719) |
- 主要な技術仕様
| カテゴリ | 仕様 |
| 電気的特性 | |
| 入力電圧 | 24VDC (範囲: 0～30VDC) |
| 定格入力電流 | 2×20A (Redundancy Mode) / 1×40A (Capacity Expansion Mode) |
| マックス. 出力電流 | 40あ (at 40°C, with 6mm² cable) |
| Voltage Drop | 0.5V (Input to Output) |
| 効率 | >97% |
| Reverse Polarity Protection | はい (<60V) |
| Transient Surge Protection | Transil Diode |
| 機械的特性 | |
| 取付タイプ | DINレール取付 (NS 35, EN準拠 60715) |
| 寸法 (幅×高さ×奥行き) | 62mm × 84mm × 102mm |
| ハウジング材質 | 金属 (AlMg enclosure, GD-ZnAlCu cooling unit) |
| 重さ | 600g (without packaging), 683g (with packaging) |
| 環境特性 | |
| 動作温度 | -25℃～70℃ (Derating required above 60°C) |
| 保管温度 | -40°C ~ 85°C |
| 侵入保護 | IP20 (For installation inside enclosed control cabinets only) |
| 保護クラス | クラス II (Double insulation) |
| 認証 & 信頼性 | |
| MTBF (@40°C) | 28,571,428 時間 (約. 3260 年) |
| Marine Certifications | DNV GL (EMC A), ABS |
| UL認証 | UL/C-UL Listed (UL 508, UL 1604 クラスI, Division 2) |
| ATEX認証 | II 3G Ex nA IIC T4 Gc |
| HSコード | 85049090 |
- クロスブランド & 新旧モデル置換え一覧表
3.1 Original Manufacturer Replacements
| 旧モデル | 状態 | 代替機種 | 注文番号. | Major Improvements |
| QUINT-DIODE/40 | 製造中止 | QUINT4-DIODE/12-24DC/2X20/1X40 | 2907719 | Extended operating temperature: -40°C~60°C; 12-24VDC wide voltage range; optimized heat dissipation |
| クイントダイオード/12-24DC/2X20/1X40 | アクティブ | QUINT4-DIODE/12-24DC/2X20/1X40 | 2907719 | In-series upgrade with enhanced performance |
| QUINT-DIODE/48DC/2X20/1X40 | アクティブ | QUINT4-DIODE/48DC/2X20/1X40 | 2907720 | Upgrade for 48VDC version |
3.2 Cross-Brand Compatible Replacements
| ブランド | モデル | 定格電流 | 電圧範囲 | 特徴 |
| ワイドミュラー | UR 24DC/2×20/1×40 | 40あ | 24VDC | Diode redundancy, DINレールマウント |
| 和合 | 289-602 | 40あ | 24VDC | コンパクトな設計, 低消費電力 |
| Würth | WE-DD-40 | 40あ | 24VDC | 高い信頼性, industrial certifications |
| R. STAHL | シリーズ 8579 | 40あ | 24VDC | Explosion-proof certified for hazardous areas |
- Full Product Line List
4.1 QUINT-DIODE Series (Classic Models)
| モデル | 注文番号. | 定格電圧 | 電流定格 | 特徴 |
| QUINT-DIODE/40 | 2938963 | 24VDC | 2×20A / 1×40A | ベーシックモデル, 製造中止 |
| クイントダイオード/12-24DC/2X20/1X40 | 2320157 | 12-24VDC | 2×20A / 1×40A | 広い電圧範囲, commonly used |
| QUINT-DIODE/48DC/2X20/1X40 | 2320160 | 48VDC | 2×20A / 1×40A | Dedicated for 48VDC systems |
| QUINT-DIODE/48DC/40 | 2866585 | 48VDC | 40あ | Protective coating, 過酷な環境に適しています |
4.2 QUINT4-DIODE Series (アップグレードされたモデル)
| モデル | 注文番号. | 定格電圧 | 電流定格 | 特徴 |
| QUINT4-DIODE/12-24DC/2X20/1X40 | 2907719 | 12-24VDC | 2×20A / 1×40A | Wide temperature design: -40°C~60°C |
| QUINT4-DIODE/48DC/2X20/1X40 | 2907720 | 48VDC | 2×20A / 1×40A | Upgrade for 48VDC systems |
4.3 QUINT-ORING Series (Active Redundancy with ACB Current Sharing)
| モデル | 注文番号. | 定格電圧 | 電流定格 | 特徴 |
| QUINT-ORING/24DC/2X20/1X40 | 2320186 | 24VDC | 2×20A / 1×40A | Active current sharing, extended power supply service life |
| QUINT4-S-ORING/12-24DC/1X40 | 2907752 | 12-24VDC | 40あ | Intelligent monitoring, compatible with QUINT4 power supplies |
- アプリケーション環境 & 業界の事例
5.1 該当する & 非推奨のシナリオ
| 該当するシナリオ | 非推奨のシナリオ |
| 産業用オートメーション制御システム (PLC, DCS) | Long-term high-load systems requiring active current sharing (ORING series recommended) |
| Process control equipment (石油化学, 水処理) | Unstable power supplies with voltage fluctuation over ±25% |
| インフラストラクチャー (通信基地局, データセンター) | Explosive hazardous areas (Select EX-certified models) |
| 海洋 & 海洋エンジニアリング (Marine certifications available) | 保護されていない屋外設置 (IP20 rating only) |
| 医療機器 (Compliant with SELV/PELV requirements) | Ambient temperature above 70°C (Derate load or use high-temperature models) |
5.2 代表的な応用例
- Automobile Production Lines
応用: Two QUINT-PS/1AC/24DC/20 power supplies connected in parallel with QUINT-DIODE/40 for redundancy.
価値: Ensure continuous operation of welding robots and PLC systems, and reduce production downtime losses.
- Petrochemical Process Control
応用: Redundant power configuration for Safety Instrumented Systems (SIS).
価値: IEC準拠 61508, provides SIL 2 safety level and prevents safety accidents caused by power failure.
- Smart Grid Monitoring Systems
応用: Dual power redundancy for Remote Terminal Units (RTU).
価値: Maintain communication and data acquisition under extreme weather conditions to guarantee stable grid operation.
- トラブルシューティング & Maintenance Manual
6.1 一般的な障害, 原因 & ソリューション
| 故障現象 | 考えられる原因 | ソリューション |
| Abnormally low output voltage | 1. Excessive forward voltage drop of internal diodes | 1. Verify input voltage within 0~30VDC |
| 2. Insufficient input voltage | 2. Check and retighten terminals | |
| 3. Loose terminal connections | 3. Test internal diodes with multimeter diode mode | |
| 深刻な過熱 | 1. Overloaded current | 1. Ensure load current does not exceed 40A (derate per cable specification) |
| 2. 放熱が悪い | 2. Reserve sufficient clearance for heat dissipation (50mm top & 底) | |
| 3. 周囲温度が高すぎる | 3. Lower ambient temperature or add ventilation | |
| Failed parallel operation of power supplies | 1. Reverse wiring polarity | 1. Recheck wiring polarity |
| 2. Excessive voltage difference between two inputs | 2. Keep voltage difference between two power supplies within 1V | |
| 3. Open-circuit internal diode | 3. 故障したモジュールを交換する | |
| Malfunction of reverse current protection | 1. Damaged reverse polarity protection diode | 1. Limit input voltage below 30VDC |
| 2. Input voltage over 60V | 2. Replace internal protection diode | |
| 3. Install external surge suppressor |
6.2 On-site Quick Diagnosis Procedure
- 目視検査
Check housing for burn marks, deformation or discoloration.
Inspect terminals for looseness, oxidation and corrosion.
Remove dust accumulated on heat sinks which impairs heat dissipation.
- 電気試験
Measure input voltage to confirm it is within 0~30VDC.
Measure output voltage (normally input voltage minus 0.5V).
Test diode forward/reverse resistance: normal state is forward conduction and reverse cut-off.
- Function Verification
Disconnect one power supply and confirm the other works normally.
Restore dual power input and check uniform load distribution.
Measure temperature rise: shall not exceed ambient temperature +30°C.
- 選定ガイドライン & クイックリファレンスルール
- 3 つの主要な選択要素: 電圧クラス (24/48VDC), Current demand (≤40A), Redundancy mode (2×20A or 1×40A)
- Replacement Rule: QUINT-DIODE/40 is replaced by QUINT4-DIODE/12-24DC/2X20/1X40 (2907719), fully backward compatible.
- Current Derating Rules:
6mm²ケーブル: 39A @ 40°C, 32A @ 60°C
10mm²ケーブル: 54A @ 40°C, 43A @ 60°C
16mm²ケーブル: 60A @ 40°C, 48A @ 60°C
- インストール要件: Horizontal or vertical DIN rail mounting; reserve 50mm clearance top and bottom for heat dissipation, 5mm clearance on left and right sides.
