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
PNOZ-X2.8P-777301-キノコ is the most widely used dual-channel safety relay from Pilz’s PNOZ X product line. その主な利点は、幅広い 24V AC/DC 動作電圧をカバーします, 3NO+1NC接点構成, SIL の高い安全性評価 3 / PL e, and ultra-fast response within ≤50ms. It is extensively deployed for various industrial safety monitoring applications. Thanks to hardwired design, it delivers superior reliability over software-based solutions under high-vibration and severe EMI conditions, making it an optimal choice for industrial automation safety protection.
- モデルコードの内訳
| コードセグメント | 意味 | 詳細な説明 |
| PNOZ | Product series prefix | Identifier for Pilz core safety relay product range |
| × | シリーズコード | Basic standalone safety relay of PNOZ X series, operable without extension modules |
| 2.8 | Functional code | “2” stands for dual-channel monitoring; “8” denotes automatic / monitored start mode with 3 safety outputs plus 1 auxiliary output |
| P | Termination type | Screw terminal version; Push-in indicates spring-cage pluggable terminals, unmarked for standard terminals |
| 777301 | Order number | Unique global part number for purchasing and inventory management |
| キノコ | ブランド名 | Pilz GmbH & Co. KG, ドイツ |
- 主要な技術仕様
| パラメータのカテゴリ | 仕様 | 備考 |
| General Data | ||
| 製品タイプ | Dual-channel safety relay | Compliant with EN ISO 13849-1 (PL e) & で 62061 (シル 3) |
| 定格電源 | 24AC/DCV (±15%) | Wide-range input compatible with standard industrial power supplies |
| 寸法 | 94×22.5×121mm (高さ×幅×奥行き) | 22.5mm standard width for compact cabinet layout |
| 取り付け | 35mm DINレール (で 60715) | 縦置き設置, 締め付けトルク: 0.5~0.8Nm |
| 入力特性 | ||
| Input Circuits | 2 independent dual-channel inputs (S11-S12/S52, S21-S22) | 24ワシントンDCで, 30mA input, compatible with PNP sensors |
| Input Function | Optional cross-contact short-circuit detection | Enabled by short-circuiting S11-S12; disabled by short-circuiting S21-S22 |
| 出力特性 | ||
| 安全出力 | 3 通常開 (いいえ) contacts with redundant dual-contact series design | Redundant structure for guaranteed safe cut-off |
| 補助出力 | 1 通常閉 (ノースカロライナ州) 接触 | ステータス表示のみ, NOT permitted in safety circuits |
| 接点の定格 | AC1:240V/6A; DC1:24V/6A | AgCuNi silver-copper-nickel contact material for arc oxidation resistance |
| AC15:230V/5A; DC13:24V/5A | ||
| パフォーマンスパラメータ | ||
| 応答時間 | ≤50ms (input to output); reset time ≤100ms | Fast safety cut-off for high-speed machinery |
| 消費電力 | Max.100mA | Low-power design for energy saving |
| 周囲温度 | 手術: -10℃～+55℃; ストレージ: -35℃～+70℃ | Suitable for harsh industrial ambient conditions |
| 侵入保護 | IP20 (main body), IP40 (terminal area) | Must be installed inside control cabinet ≥IP54 |
| 認証 | CE, CCC, UL, RoHS | Global market access certifications |
Ⅲ. Full Range Model List (Core PNOZ X2 Series)
| モデル | 注文番号. | 供給電圧 | 出力構成 | Start Mode | 端子の種類 |
| PNOZ X2.8P | 777301 | 24AC/DCV | 3NO+1NC | 自動 / Monitored | スクリュー |
| PNOZ X2.8 | 777300 | 24AC/DCV | 3NO+1NC | 自動 / Monitored | 標準 |
| PNOZ X2.8P PI | 777302 | 24AC/DCV | 3NO+1NC | 自動 / Monitored | プラグイン |
| PNOZ X2.7P | 777311 | 24~240V AC/DC | 3NO+1NC | 自動 / Monitored | スクリュー |
| PNOZ X2.7 | 777310 | 24~240V AC/DC | 3NO+1NC | 自動 / Monitored | 標準 |
| PNOZ X2.10P | 777321 | 24ワシントンDCで | 2NO+1NC | 手動リセット | スクリュー |
| PNOZ X2.11P | 777331 | 24ワシントンDCで | 3NO+1NC | 手動リセット | スクリュー |
- Cross-Brand Equivalent Replacement Table
| ブランド | Alternative Part | 主な違い | 適用範囲 |
| シュナイダー | Zelio SR2B121BD | Single-channel, 2NO+1NC, 24VDC only | Low-risk applications with limited budget |
| シーメンス | 3SK1111-1AB30 | デュアルチャンネル,3NO+1NC,24AC/DCV | Full drop-in replacement, SIL3 compliant |
| オムロン | G9SA-321-T075 | デュアルチャンネル,3NO+1NC,24AC/DCV | Matched for Japanese-built equipment, 費用対効果の高い |
| ABB | MSR125TP | デュアルチャンネル,3NO+1NC,24AC/DCV | Heavy-duty machinery with superior anti-vibration performance |
| Pilz Upgrade | PNOZ X2.7P (777311) | 幅広い電圧:24~240V AC/DC | Global projects with varying supply voltages |
- アプリケーション環境 & 業界の事例
推奨アプリケーション
- Machinery Safety Monitoring: Emergency stop pushbuttons, safety door interlocks, safety light curtains, two-hand control stations
- 自動車製造: 溶接ロボット, coating production lines, lithium battery equipment interlock control
- Electronics Assembly: SMT placement machines, AOI inspection equipment, laser cutter safety circuits
- 包装機械: 高速包装ライン, palletizing robots, over-temperature protection for heat-sealing devices
- Logistics Automation: Stacker cranes, AGVs, conveyor safety door & E-stop systems
Non-Recommended Applications
Safety systems requiring complex logic operations (PNOZmulti modular safety controller recommended)
Extreme high-vibration environments (>10g): extra vibration dampening required
Unprotected outdoor mounting (only IP20 body protection)
代表的な応用例
Case1: Lithium Battery Aging Room Safety Control for Automotive Industry
機能: Access door interlock, emergency cut-off on over-temperature, fire protection linkage
構成: PNOZ X2.8P(777301)+safety door switch+temperature sensor+E-stop button
Outcome: PL e safety level achieved to prevent thermal runaway of lithium cells
Case2: Safety Circuit Retrofit for Laser Cutting Machine
Original Issue: Distributed safety PLC I/O triggered false shutdown twice in three years due to EMI interference
解決: Replace with hardwired safety circuit using PNOZ X2.8P
Result: Zero breakdown over 5 年, response optimized ≤50ms, maintenance cost cut by 60%
- 選択のヒント & クイックリファレンスルール
Quick Selection Formula
24V AC/DC X2.8, dual-channel with three NO & one NC<br>
ネジ端子 777301, automatic start with top safety grade<br>
非常停止, ライトカーテン & 安全ドア, certified SIL3 & PL e<br>
DIN rail mounting saves cabinet space, fits all industrial sites
クイックリファレンスルール
- Model Memorization: PNOZ X2.8P = Dual-channel + Mode8 + P=screw terminals
- 注文コード:777301 = standard baseline part of Pilz X2 family
- コアスペック:24AC/DCV,3NO+1NC,≤50ms response,SIL3/PL e
- Terminal Wiring Rules:
Short S11-S12: Activate contact short-circuit detection
Short S21-S22: Deactivate contact short-circuit detection
Short S12-S34: Enable automatic start mode
Short S52-S11: Enable automatic reset function
Ⅶ. インストール & メンテナンスガイドライン
設置仕様
- Mount vertically inside control cabinet with terminals facing upward for natural convection cooling
- Maintain ≥50mm clearance from heat-generating components, ≥30mm from cabinet inner walls
- Separate wiring of safety circuits and power circuits; route crossing wires at 90° to reduce EMI coupling
- Install 10A fuse in series ahead of output contacts for contact protection
Common Troubleshooting Guide
| 故障現象 | Root Cause | Remedial Action |
| Power indicator off | 1. No power supply or reversed polarity | 1. Verify A1/A2 wiring |
| 2. Input voltage out of tolerance | 2. Confirm stable 24V AC/DC supply | |
| Safety outputs fail to close | 1. Open input circuit | 1. Check continuity of S11-S12/S21-S22 |
| 2. Incorrect start circuit configuration | 2. Confirm jumper status of S12-S34 | |
| Contact ablation/burning | 1. Overloaded output rating | 1. Upgrade to higher-rated relay |
| 2. Missing snubber for inductive loads | 2. Fit freewheeling diode(直流) or varistor(交流) in parallel | |
| Unexpected false tripping | 1. Electromagnetic interference on input lines | 1. Apply shielded cable with proper grounding |
| 2. Misconfigured short-circuit detection | 2. Adjust S11-S12/S21-S22 jumper setup |
VIII. 航空輸送のコンプライアンス & Certification Details
国連番号: リチウム電池は内蔵していません, classified as non-dangerous goods
輸送カテゴリー: General cargo, acceptable for air, sea and land freight
CE Compliance: ENに準拠 60947-5-1/-2 and EN ISO 13849-1
HSコード: 85364900 (Other electrical relays)
