PILZ 772140 / 772142 / 772143 (PNOZ X2) セーフティリレー

All three models are PILZ PNOZ X2 compact basic safety relays, belonging to PILZ classic X series. They are designed for safety circuit monitoring of industrial equipment, mainly overseeing safety components such as emergency stop buttons, safety gates, safety light curtains and two-hand control units. The three products feature identical contact configuration, functions and dimensions, differing only in supply voltage. Equipped with standard automatic reset and dual-channel safety design, they comply with machinery safety standards Cat.3 / PL d / シル 2.

型式コードの説明

1.1 General Rules for Brand & シリーズ

PILZ: ブランド (a German professional safety automation manufacturer)

772140 / 772142 / 772143: Unique factory part numbers of PILZ

PNOZ: Main series code for PILZ safety relays

×: X Series – Compact general-purpose safety relays, DIN rail mounted, cost-effective basic type

2: Contact configuration code – 2 sets of force-guided safety normally open (いいえ) 連絡先

1.2 Model Correspondence Table

工場部品番号.	フルモデル	供給電圧	主な違い
772140	PNOZ X2 24V AC/DC	24AC/DCV	Most widely used in industrial control, compatible with DC systems for PLCs and sensors
772142	PNOZ X2 110V AC	110Vと	Suited for Japanese-style equipment and power supply systems in some overseas regions
772143	PNOZ X2 230V AC	230Vと	Matches domestic industrial mains power and European standard AC systems

注記: All three models adopt automatic reset without manual reset function. Built-in dual-channel safety detection and force-guided contacts (core safety structure of safety relays to prevent failure caused by contact welding).

主要な技術仕様

Except for supply voltage, all electrical, mechanical and safety parameters are identical for the three models, as summarized below:

カテゴリ	アイテム	仕様	備考
Basic Properties	製品タイプ	Dual-channel Safety Relay	Dual-channel monitoring for safety circuits, compliant with machinery safety regulations
	安全接点	2 × Force-guided Normally Open (いいえ) 連絡先	No auxiliary contacts, pure safety output
	リセットモード	自動リセット	Automatically restarts after safety circuit recovers, no manual button required
	取り付け	Standard 35mm DIN Rail Mount	Universal installation for control cabinets
	侵入保護	IP40	For indoor cabinet use; 防塵, not resistant to water splashing
電気的パラメータ	定格動作電圧	772140: 24AC/DCV	コイル供給電圧
		772142: 110Vと
		772143: 230Vと
	Rated Contact Load AC-15	230V / 6あ	Applicable to resistive and inductive loads
	Rated Contact Load DC-13	24V / 6あ	Load capacity for DC circuits
	マックス. Switching Voltage	250Vと / 30ワシントンDCで	Upper voltage limit for output circuits
	Typical Response Time	＜20 ms	Fast safety actuation to ensure reliable emergency stop
	消費電力	約. 2.5W	Low power loss, low heat generation during long-term operation
環境パラメータ	動作温度	0℃～+55℃	Standard industrial control environment
	保管温度	-25℃～+70℃	Temperature range for storage and transportation
	相対湿度	10% ～ 90% (結露なし)	Condensation and frost are prohibited
Safety Ratings	Machinery Safety Category	猫. 3	Compliant with EN ISO 13849-1
	パフォーマンスレベル	PL d	Standard safety level for mainstream automated equipment
	Safety Integrity Level	シル 2	IEC準拠 61508 functional safety standard
認証	承認	テュフ, CE, cULus	Globally recognized industrial certifications, eligible for export
物理的な & 配線	寸法 (W × H × D)	22.5 × 94 × 120 mm	Narrow compact design, キャビネットのスペースを節約します
	接続タイプ	ネジ端子	Reliable wiring, suitable for environments with mechanical vibration
	重さ	約. 140 g	Lightweight rail-mounted module

Full Range List (PNOZ X2 Family)

Same structure and contact configuration; differentiated only by voltage and reset mode for convenient replacement and selection:

部品番号.	フルモデル	供給電圧	リセットモード	説明
772140	PNOZ X2 24V AC/DC	24AC/DCV	自動リセット	Mainstream standard model
772141	PNOZ X2 48V AC	48Vと	自動リセット	Special low-volume voltage version
772142	PNOZ X2 110V AC	110Vと	自動リセット	For 110V AC power systems
772143	PNOZ X2 230V AC	230Vと	自動リセット	For 220/230V mains systems
772100	PNOZ X2 24V AC/DC	24AC/DCV	手動リセット	Requires external reset button for high-safety applications

拡張された: Main Related Models of PNOZ X Series

モデル	接点構成	Application Position
PNOZ X1	1 Safety Normally Open Contact	Basic single safety circuit monitoring
PNOZ X3	3 Safety Normally Open + 1 Auxiliary Normally Closed Contact	Multiple output circuits with signal feedback
PNOZ X4	4 Safety Normally Open Contacts	Synchronous cut-off for multiple loads

Cross-Generation & Cross-Brand Replacement

4.1 Internal Replacement within PILZ

製品の状態: 772140/772142/772143 (PNOZ X2) are active mass-production models, no obsolescence or direct discontinued replacements.

Upgraded Alternatives (Higher performance, backward compatible):

PNOZ X2.8P: Equipped with diagnostic output and optimized terminals; pin-compatible for direct replacement.

PNOZ X3: Recommended if additional auxiliary feedback contacts are required.

Downgraded Replacement: 利用不可. PNOZ X2 is the entry-level model of X series.

4.2 ブランド間の同等品 (Same Safety Rating: カテゴリ3 / PL d)

ブランド	モデル	供給電圧	接点構成	互換性に関する注意事項
Schmersal	SRB 301ST	24V/110V/230V	2 NO Safety Contacts	Identical function and rating, similar wiring logic
シーメンス	3TK2821	24AC/DCV / 230Vと	2 NO Safety Contacts	Popular German alternative, universal DIN rail mounting
シュナイダーエレクトリック	XPSAC01	24V/230V	2 NO Safety Contacts	Preferred for cabinets with Schneider components
ABB	JSBR4	24V/230V	2 NO Safety Contacts	Widely used for European and American projects
ワイドミュラー	SAFE-SR2	24AC/DCV	2 いいえ接点	Cost-effective option for domestic control cabinets

Important Reminder: Always verify wiring diagrams and safety circuit logic when replacing safety components. Do not replace merely based on appearance to avoid safety hazards.

4.3 国内代替品

Recommended Models: IDEC HR1S, Tianyi safety relays

該当するシナリオ: Non-high-risk equipment and ordinary domestic automated production lines

Restrictions: Not recommended for high-end export equipment, robotic systems, presses and stamping machines.

Application Environments & 業界の事例

5.1 主なアプリケーションシナリオ

This universal safety relay is used for industrial equipment requiring safe power circuit cut-off. Typical monitored components:

Emergency stop circuit (full equipment emergency shutdown)
Mechanical safety gates and guard switches (power cut-off once gates are opened)
Safety light curtains and area scanners (shutdown protection when personnel enter hazardous areas)
Two-hand control buttons (prevent misoperation on pressing and riveting machines)
Safety limit switches and travel safety contacts

5.2 Applicable Industries

Machine Tool Processing: 旋盤, フライス盤, マシニングセンター, グラインダー

包装 & ロジスティクス: 包装機, palletizers, コンベア, sorting equipment

自動車製造: Welding, assembly and coating production lines

Rubber & Plastic Injection: 射出成形機, 押出機, die-cutting equipment

一般的な自動化: Robotic workstations, custom automated machinery

Light Industry Machinery: 印刷, textile and food processing equipment

5.3 Suitable Operating Conditions

Standard indoor control cabinets, normal temperature, dust-free or slightly dusty environments

Conventional power frequency systems (24V/110V/230V power supply)

Circuits with frequent start-stop and demand for rapid safety cut-off

5.4 推奨されないシナリオ (予防)

Explosion-proof Areas: No explosion-proof certification. Use dedicated PILZ explosion-proof safety relays for explosive workshops.
Outdoor Exposure / High Humidity & Condensation: IP40 protection is insufficient; an additional protective enclosure is required.
Severe Electromagnetic Interference: (Near high-frequency welders or large inverters) Shielding measures and independent earthing are necessary.
Overload Operation: Contact current must not exceed 6A. Add intermediate contactors for high-power loads.
Ambient Temperature above 55℃: Will shorten service life of safety contacts and cause false tripping.

5.5 代表的な応用例

場合 1: Safety Protection for Vertical Machining Center

構成: 772140 (24AC/DCV) + Safety gate switch + Emergency stop button

関数: Opening the equipment guard gate → Safety relay actuates → Cuts off power to spindle and feed motors; Automatic reset and restart after gate closure.

利点: Complies with machine safety standards and prevents personnel from entering mechanical hazardous zones.

場合 2: Food Flow Wrapper

構成: 772143 (230Vと) + セーフティライトカーテン

関数: If operators accidentally reach into the operating area → Light curtain triggers → Relay cuts off main drive power.

利点: IP40 rating adapts to slight water vapor in workshops; automatic reset ensures continuous production.

モデル選択ガイド

Quick Reference Rules

The three part numbers differ only in coil voltage, with identical appearance, contacts and functions:

772140 = 24V AC/DC (Universal, first choice)

772142 = 110V AC (For Japanese-style and overseas equipment)

772143 = 230V AC (For domestic 220V mains power)

PNOZ X2 = 2 safety NO contacts + 自動リセット
Selection Priority: Confirm control cabinet supply voltage first, then verify reset mode (自動 / マニュアル).
トラブルシューティング

故障現象	Probable Cause	解決
Power indicator off, no response	Broken coil wiring, loose terminals, power failure	Measure input voltage, tighten screws, check upstream circuit breakers and fuses
頻繁な誤トリップ	Loose wiring in safety circuit, electromagnetic interference, poor contact of gate switches	Re-crimp terminals, route cables away from power lines, replace worn safety switches
Safety circuit normal but relay fails to energize	Aged internal contacts, damaged coil, end of service life	Replace with an identical safety relay (Safety components are not repairable)
Output contacts cannot open (welded)	Long-term overload, 負荷短絡, frequent high-current surges	リレーを交換する; add intermediate contactors for current division; never exceed 6A rated current
Abnormal reset, failed automatic restart	Incomplete closure of safety circuit, line short to ground	Check continuity of the entire safety circuit and eliminate short circuits

Safety Regulation: Faulty safety relays are prohibited from disassembly and repair. The complete unit must be replaced.

注文, 包装 & コンプライアンス

8.1 Ordering Details

工場部品番号.	フルモデル	供給電圧	標準梱包
772140	PNOZ X2 24V AC/DC	24AC/DCV	1 unit per box
772142	PNOZ X2 110V AC	110Vと	1 unit per box
772143	PNOZ X2 230V AC	230Vと	1 unit per box

8.2 コマーシャル & Storage Information

最低注文数量: 1 ピース

起源: ドイツ (Original PILZ product)

Spare Parts Suggestion: 準備する 1 unit of corresponding voltage model for every 10 sets of similar equipment

製品の状態: Mass production, long-term stable supply

8.3 Logistics Compliance

No lithium batteries, supercapacitors or hazardous materials inside. Classified as general low-voltage electrical component.

No special restrictions for air, 海と陸の輸送; no additional dangerous goods declaration required.

8.4 規格 & 承認

適用規格: ISO で 13849-1, IEC 61508, で 60947-5-1

認証: CE, テュフ, UL. Approved for use in EU, North America and most regions worldwide.

Supplementary: Basic Wiring Instructions
Coil Power Supply: Apply corresponding rated voltage to coil terminals (A1/A2).
Safety Input Circuit: Wire emergency stop buttons and safety gates in series to dual-channel inputs.
Safety Output Circuit: Connect 2 sets of NO safety contacts in series to the control circuit of main contactors.
配線原理: Adopt series connection for safety circuits. The relay will immediately cut off outputs once any safety component opens.