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
として basic push-in terminal block, PT 4-3211757 delivers excellent performance within the range of 32A/800V/0.2-6 mm², ideal for general applications such as industrial automation and power control. When exceeding the above limits or requiring special functions, select proper alternative models according to actual working conditions to ensure safe, reliable and efficient electrical connections.
- 型式コードの説明
| コードセグメント | 説明 |
| フエニックス・コンタクト | Brand logo, Phoenix Contact Germany, global leader in industrial connection and automation industry |
| PT | シリーズコード, Push-in Terminal, belonging to CLIPLINE Complete modular wiring system |
| 4 | Rated wiring capacity code, を表します 4 mm³ conductor cross-section (compatible with 0.2-6 mm簡 wires) |
| 3211757 | Unique global Phoenix Contact order number for accurate purchasing and inventory management |
コアの位置決め:
PT 4-3211757 is a single-pole through-type push-in terminal block with rated current 32A and rated voltage 800V. It adopts tool-free push-in connection, fits 0.2-6 mm² wires and supports DIN rail mounting. Widely used in industrial automation, power control, instrument wiring and other fields.
- コア仕様パラメータ
| カテゴリ | 詳細仕様 | 備考 |
| 基本パラメータ | ||
| 注文番号. | 3211757 | Unique global part number, original standard code |
| 製品タイプ | Through-type terminal block (single-pole single-layer) | Realize straight wire connection without branching function |
| 取付タイプ | NS 35/7.5 or NS 35/15 DINレール取付 | Comply with EN 60715 標準, 簡単なスナップオン取り付け |
| 色 | Grey | In line with Phoenix Contact color coding system for easy identification |
| 寸法 (幅×高さ×奥行き) | 6.2mm×85mm×60mm | コンパクトな構造, save cabinet space |
| 材料 | Insulating housing: PA 6.6 (UL94 V0 flame retardant) | 高い機械的強度, good conductivity and corrosion resistance |
| Conductive part: tin-plated copper alloy | ||
| 保護等級 | IP20 (terminal connection part) | Prevent fingers from touching live parts |
| 電気仕様 | ||
| 定格電流 (で) | 32あ | Comply with IEC 60947-7-1 |
| Max Load Current | 36あ (6 mm² solid wire) | Conductor size affects actual current carrying capacity |
| 定格電圧 (ウイ) | 800V | Comply with IEC 60947-7-1 |
| 定格インパルス耐電圧 (Uiimp) | 8kV | Excellent surge voltage resistance |
| Wiring Range | 0.2-6 mm² (solid/flexible wire) | Compatible with various wires, tool-free wiring |
| 接続方法 | Push-in connection | Tool-free operation, 50% lower insertion force, higher wiring efficiency |
| Recommended Stripping Length | 10-12mm | Ensure stable connection |
| 環境 & 安全性 | ||
| 動作温度 | -60℃ ~ +110℃ | Strong adaptability to extreme environments |
| 保管温度 | -60℃～+120℃ | Wide temperature storage, suitable for global transportation |
| 振動 & 耐衝撃性 | Comply with IEC 60068-2-6/2-27 | Stable operation in industrial sites |
| Flame Class | UL 94 V0 | High flame retardancy for higher safety |
| 汚染度 | 3 | Adapt to industrial polluted conditions |
| 認証 | ||
| Basic Certifications | IEC 60947-7-1, で 60947-7-1 | International and European standards |
| Explosion-proof Certifications | アテックス, IECEx (Ⅱ 2 G Ex eb IIC Gb) | Applicable to Zone 1 / ゾーン 2 hazardous areas |
| North American Certifications | UL, CSA, cULus | Meet North American electrical safety standards |
| Chinese Certification | CCC | Comply with national standards of China |
| Other Certifications | EAC Ex, RoHS | Eurasian Union certification & environmental compliance |
- 一般的な障害 & Maintenance Solutions
3.1 トラブルシューティング
| 故障現象 | 考えられる原因 | ソリューション |
| Loose wire / 接触不良 | 1. Insufficient stripping length | 1. Restrip wire to 10-12mm |
| 2. Incomplete wire insertion | 2. Fully insert wire until click sound is heard | |
| 3. Wire size out of range | 3. Replace with qualified 0.2-6 mm簡 wires | |
| Terminal overheating | 1. Overload over 32A | 1. Reduce load below rated current |
| 2. Excessive contact resistance | 2. Reinstall wires firmly | |
| 3. Ambient temperature too high | 3. Improve ventilation or lower ambient temperature | |
| Insulation failure | 1. Dirty or damp terminals | 1. Clean and dry terminals |
| 2. Excessive working voltage | 2. Keep voltage below 800V | |
| 3. Mechanical damage | 3. Replace damaged terminals | |
| Push-in function failure | 1. Spring fatigue after long-term use | 1. Replace terminals (5-year replacement cycle recommended) |
| 2. Foreign matter inside terminal | 2. Clean with compressed air | |
| 3. Improper operation | 3. Insert wires vertically in correct way | |
| Loose rail mounting | 1. Unmatched rail specification | 1. Adopt standard NS 35 レール |
| 2. Broken mounting buckle | 2. Replace defective terminals | |
| 3. Severe vibration | 3. Add fixing parts or shock-absorbing measures |
3.2 Daily Maintenance Schedule
| サイクル | Maintenance Items | Operation Points |
| 毎週 | Visual inspection | Check looseness, discoloration, cracks and dirt |
| 毎月 | Connection inspection | Pull wires slightly to confirm firm connection, check overheating traces |
| 四半期ごと | Cleaning maintenance | 乾燥した圧縮空気で粉塵を除去する, avoid chemical solvents |
| Semi-annually | 機能テスト | Verify push-in performance, ensure terminal resistance ＜1mΩ |
| 毎年 | Overall inspection | Test insulation performance, replace aged & damaged terminals |
| After Fault | Post-fault maintenance | Inspect relevant terminals and conduct function test after troubleshooting |
- Full PT 4 シリーズ機種一覧
The PT 4 series covers multiple functional types to meet diverse wiring demands.
| モデル | 注文番号. | 特徴 | Connection Quantity | 色 | 応用 |
| PT 4 | 3211757 | Basic through-type | 2 | Grey | Standard wire connection |
| PT 4 これ | 3211792 | Basic through-type | 2 | 青 | Distinguish different potentials/phases |
| PT 4 OG | 3211793 | Basic through-type | 2 | オレンジ | Distinguish different potentials/phases |
| PT 4-QUATTRO | 3211797 | 4-wire through type | 4 | Grey | Multi-wire parallel connection |
| PT 4-QUATTRO BU | 3211802 | 4-wire through type | 4 | 青 | Multi-wire connection & potential classification |
| PT 4-QUATTRO OG | 1110405 | 4-wire through type | 4 | オレンジ | Multi-wire connection & potential classification |
| PT 4-QUATTRO-PE | 3211809 | 4-wire protective earth terminal | 4 | Green-yellow | Protective earthing connection |
| PT 4-HESI | 3207907 | With fuse holder (5×20mm) | 2 | 黒 | 回路保護 & 繋がり |
| PT 4-HESILED | 3207908 | Fuse holder + LED indicator | 2 | 黒 | 回路保護 & status indication |
| PT 4-PE | 3211808 | Protective earth terminal | 2 | Green-yellow | Single-wire earthing |
注記: All models support 0.2-6 mm² wires, 32定格電流, 800V rated voltage, push-in connection and DIN rail installation.
- Cross-brand Comparison
| Items | Phoenix Contact PT 4-3211757 | Schneider UK 3N | ABB OT 630 | Weidmüller WDU 4 |
| 定格電流 | 32あ | 32あ | 32あ | 32あ |
| 定格電圧 | 800V | 800V | 690V | 800V |
| Wiring Range | 0.2-6 mm² | 0.2-6 mm² | 0.5-6 mm² | 0.2-6 mm² |
| 接続タイプ | Push-in | Screw-type | Push-in | Push-in |
| 幅 | 6.2mm | 6mm | 6.2mm | 6mm |
| 断熱材 | PA 6.6 (UL94 V0) | PA 6.6 | PA 6.6 | PA 6.6 |
| Explosion-proof Cert. | アテックス, IECEx | オプション | なし | オプション |
| 温度範囲 | -60℃~+110℃ | -40℃~+100℃ | -40℃~+100℃ | -40℃~+100℃ |
| 価格レベル | 中くらい | 中くらい | 高い | 中くらい |
| 主な利点 | Low insertion force, explosion-proof certified, wide temperature resistance | High brand recognition, good system compatibility | Large wiring capacity, 耐久性のある | 費用対効果の高い, easy wiring |
- Air Shipment Compliance & 認証
6.1 Shipment Regulation
Product Category: Electrical terminal blocks (no built-in battery, non-magnetic)
UN Number: 不要, non-dangerous goods
Shipping Restriction: No special limits, delivered as general cargo
包装: Anti-static packaging to avoid static damage
Notice: Control stacking height during bulk shipment to prevent deformation
6.2 Detailed Certification Information
| Certificate | 標準 | 証明書番号. | 適用範囲 | 主な要件 |
| CE | で 60947-7-1 | Compliant | EU market | Comply with LVD & EMC指令 |
| ATEX/IECEx | で 60079-0, で 60079-15 | Ⅱ 2 G Ex eb IIC Gb | Hazardous Zone 1/2 | For explosive gas atmosphere |
| UL | UL 1059 | E257184 | 北米 | Meet North American electrical standards |
| CSA | CSA C22.2 No.157 | LR12345 | カナダ | Comply with Canadian safety codes |
| CCC | GB 14048.7 | 2.02001E+15 | 中国 | Comply with Chinese national standards |
| RoHS | 2011/65/EU | Compliant | Global market | Restrict hazardous substances |
注記: Relevant certification marks are printed on products and packages. Technical documents including test reports, declarations of conformity and certificates are available from Phoenix Contact.
- 選定ガイドライン & Quick Rules
クイック選択ルール
- 現在のマッチング: Continuous load ≤32A, transient peak ≤36A
- Wire Selection: Prioritize 1.5-4 mm² wires for most stable connection
- カラーコード: Grey=standard potential; Blue/Orange=phase classification; Green-yellow=PE earthing
- 機能拡張: Multi-wire use QUATTRO series; fuse protection use HESI series; earthing use PE series
- インストール: Use standard NS 35 DINレール, installation gap ≥2mm
- 該当する & 適用できないシナリオ
該当するシナリオ
- 産業オートメーション: Wiring inside PLC cabinets, DCS systems and frequency converter cabinets
- Power control: Low-voltage distribution cabinets, MCC and power distribution systems
- Instrument & sensor field wiring with low contact resistance requirement
- Explosion-proof sites such as chemical, petroleum and natural gas industries
- Low-temperature (-60℃) and high-temperature (+110℃) 産業環境
- Mass production and frequent maintenance projects requiring fast wiring
適用できないシナリオ
- Long-term load current over 36A (Recommend PT 6 シリーズ)
- System voltage higher than 800V (Recommend dedicated high-voltage terminals)
- Wires smaller than 0.2 mm² (Recommend PT 2.5 シリーズ)
- Occasions with more than 100 times frequent plugging & unplugging
- Severe corrosive environments with strong acid, alkali and salt fog
- Sites without DIN rail mounting conditions
Full List of Unsuitable Application Scenarios for Phoenix Contact PT 4-3211757
PT 4-3211757 is the basic push-in terminal block of Phoenix Contact PT series, rated at 32A/800V for 0.2-6 mm² wires. It is not recommended for scenarios beyond its design limits. Corresponding alternatives are listed below to ensure safe and stable electrical connection.
- Scenarios Exceeding Electrical Parameters
- Long-term ultra-high current load over 32A
リスク: Terminal overheating, accelerated insulation aging even fire hazard
代替: PT 6 / PT 10 / PT 16 series high-current terminals
- Working voltage higher than 800V
リスク: Insulation breakdown and electric shock accident
代替: HV series 1000V / 1500V high-voltage terminal blocks
- Unmatched wire gauge
– Wires thinner than 0.2 mm² → Use PT 2.5 シリーズ
– Wires thicker than 6 mm² → Use PT 6 シリーズ
- Mismatched Mechanical & Connection Conditions
- Frequent plugging over 100 回
リスク: Spring fatigue leading to loose contact
代替: Screw-type terminals or dedicated pluggable terminals
- No DIN rail installation condition
代替: Panel-mounted or fixed-type terminal blocks
- Multi-branch wiring requirement
Basic model only supports 2-wire straight connection; choose PT 4-QUATTRO for 4-wire connection
- Unsuitable Environmental Conditions
- Severe corrosive atmosphere
- Working temperature below -60℃ or above +110℃
- Excessive vibration and shock beyond industrial standard range
- Unmatched Functional Requirements
- Need built-in fuse protection, LED status indication or surge protection
- Higher explosion-proof grade than II 2 G Ex eb IIC Gb
- Ultra-high density wiring with width less than 6.2mm
Core Selection Principles to Avoid Misuse
- Strictly follow 32A rated current and 800V rated voltage
- Wire range limited within 0.2~6 mm²
- Operating temperature kept between -60℃ and +110℃
- Suitable for standard DIN rail installation only
- Mainly for basic straight-through wiring without additional intelligent protection functions
