シュマーサル SRB301MC-24V セーフティリレー

の Schmersal SRB301MC-24V is a high-performance safety relay module. その主な利点は次のとおりです。 3 セーフティコンタクトプラス 1 信号出力, 停止 0 停止カテゴリ, パフォーマンスレベルe (PL e) 診断カバー率 ≥99%. It is widely deployed in safety protection systems for various industrial automation equipment. Featuring a dedicated design for magnetic safety switches and cross-wire detection function, it delivers outstanding performance in safety gate monitoring applications. Please check compatibility with safety input devices during model selection, and strictly follow wiring specifications during installation to ensure safe and reliable system operation.

1. 型式コードの説明

The SRB301MC-24V is a safety relay module of the PROTECT SRB series manufactured by Schmersal, ドイツ. The breakdown of the model code is as follows:

注文番号: 101190684 (標準バージョン), 161190684 (International Version), 151190684 (China Version)

2. 主な技術仕様

3. クロスブランド互換性リスト

Selection Guideline: Match voltage and contact quantity; do not downgrade safety performance level; keep identical mounting dimensions.

4. Full Model List of SRB Series

5. 一般的な障害 & トラブルシューティング

Check power first, then inputs; wrong settings are common causes; watch out for interference and reset requirements.

6. Application Environments & 業界の事例

6.1 該当するシナリオ

Machinery Safety Protection: Emergency stop systems for injection molding machines, punch presses, press brakes and other stamping equipment

Automation Production Lines: Signal processing for safety light curtains to prevent personnel from entering hazardous areas

ロジスティクス & 倉庫保管: Safety gate monitoring for stackers and conveyors with BNS magnetic safety switches

包装機械: Safety interlock for filling and labeling machines to ensure operational safety

自動車製造: Safety zone monitoring for welding robots and coating lines

6.2 推奨されないシナリオ

Harsh outdoor environments: IP20 protection rating is not suitable for outdoor installation

Highly corrosive environments: No anti-corrosion coating, incompatible with acid, alkali and corrosive media

High vibration environments: Vibration over 5g may shorten relay service life

High temperature over 60°C: Will degrade performance and service life

6.3 Application Cases

場合 1: Stamping Production Line for Automotive Parts

応用: Emergency stop system and signal processing of safety light curtains for 3 punch presses

構成: One SRB301MC-24V installed on each press, connected with emergency stop buttons and safety light curtains

効果: Realizes instant STOP 0 shutdown with diagnostic coverage ≥99%, reducing safety risks

場合 2: Safety System for Food Packaging Machinery

応用: Safety gate monitoring for filling and capping machines with Schmersal BNS magnetic safety switches

構成: SRB301MC-24V monitors 2 safety gates; cross-wire detection prevents cable failures

効果: Complies with food industry safety standards and improves equipment reliability

場合 3: Stackers in Automated Warehouse

応用: Safety gate monitoring and emergency stop system for stacker aisles

構成: SRB301MC-24V connected to magnetic safety switches and E-stop buttons; signal output linked to PLC

効果: Stacker is locked when safety gates are open, upgrading warehouse safety level

Detailed Application Cases of Schmersal SRB301MC-24V Safety Relay

This model is optimized for magnetic safety switches, dual-channel monitoring and cross-wire detection, compliant with PL e / カテゴリ 4. It is widely used for safety gates, emergency stops and safety light curtains. Below are practical industry cases including wiring schemes, operation methods and application values.

1. Machine Tool Industry (主な用途)

場合 1: Safety Gate & E-Stop Interlock for CNC Punch Press / Press Brake

1. マッチングデバイス: Schmersal BNS magnetic safety switches (machine protective gates) + Mushroom-head emergency stop buttons
2. 手術:

Adopt dual-channel input and cross-wire detection to monitor front and rear protective gates;

Safety contacts open immediately when gates are opened or E-stop is triggered, executing STOP 0 instant shutdown;

Auxiliary signal contacts connect to PLC for gate status and fault alarm upload.

3. 価値: Prevent personnel from accessing stamping hazardous areas; detect cable breakage and short circuit to avoid safety failure.

場合 2: Rotating Hatch Monitoring for Machining Centers

1. マッチングデバイス: BNS magnetic safety switches (rotating protective gates)
2. 手術: Switchable single/dual channel; equipment cannot start if gates are not fully closed; power circuit cuts off immediately if gates are opened during operation.
3. 適用機器: Vertical machining centers, drilling & フライス盤, グラインダー.
4. Automation Production Lines & ロボット工学

場合 1: Safety Fence Monitoring for Robot Workcells

1. マッチングデバイス: Magnetic safety switches (fence access gates) + Safety light curtains
2. 手術:

Signals from safety gates and light curtains are wired in series to the relay;

Robot stops and locks when personnel intrude or gates are opened; on-site reset is required for restart.

3. 典型的なシナリオ: Automotive component handling, welding robots, loading/unloading robot cells.

場合 2: Centralized Emergency Stop Control for Production Lines

1. 手術: Emergency stop buttons at multiple workstations are connected in parallel to the module, cutting off power of motors and conveyors via unified safety circuit.
2. 利点: Fast response and powerful circuit diagnosis, ideal for full-line safety interlock.
3. 包装, 食べ物 & Pharmaceutical Machinery

場合 1: Guard Safety Protection for Automatic Filling & Sealing Machines

1. マッチングデバイス: BNS non-contact magnetic safety switches (movable machine guards)
2. 手術:

Frequent opening/closing of guards in food equipment leads to no mechanical wear for magnetic switches and longer service life;

Enable cross-wire detection to avoid safety hazards caused by aging and short-circuited cables in humid environments.

3. 適用機器: Beverage fillers, daily chemical packaging machines, pharmaceutical blister packaging machines.

場合 2: Access Gate Interlock for Carton Packaging & Palletizing Machines

Magnetic switches are installed on equipment access gates. The palletizing mechanism and conveyors lock completely once gates are opened, protecting maintenance personnel.

4. ロジスティクス & Warehousing Equipment

場合 1: Aisle Safety Gate Monitoring for Warehouse Stackers

1. Monitoring Points: Protective gates and access gates of stacker travel aisles
2. 論理: Stacker is disabled for travelling and lifting when gates are open; immediate shutdown and alarm during operation.
3. 特徴: Cross-wire detection effectively diagnoses faults of long-distance cables in warehousing systems.

場合 2: Zone Safety Protection for Belt / Roller Conveyors

Access gates on both sides of conveyors and line-mounted E-stop buttons are connected to the module, realizing full-section emergency stop. Widely used in express sorting and material conveying lines.

5. Rubber, プラスチック & Injection Molding Machinery

場合: Safety Gate & Mold Area Protection for Injection Molding Machines

1. マッチングデバイス: Magnetic safety switches (フロント & rear safety gates of injection machines)
2. 手術: Mold opening and part picking areas are high-risk zones. Mold closing action is locked when gates are opened to prevent pinching accidents. Complies with national safety standards for rubber & plastic machinery.
3. General Auxiliary Applications (小型機器 & 制御盤)

場合: Small Automated Tooling & Test Equipment

For various custom assembly and test tooling, this relay builds cost-effective high-level safety circuits (カテゴリ 4 / PL e) with single E-stop and simple protective gates, suitable for small and medium-sized custom equipment.

Supplementary Operation Notes

1. For optimal performance, use with Schmersal BNS magnetic safety switches (original manufacturer recommended combination).
2. Enable cross-wire detection for long-distance wiring, humid or dusty sites.
3. All above applications meet EN ISO 13849 PL e and Category 4, acceptable for equipment exported to the EU.
4. Not recommended for outdoor, highly corrosive or severe vibration environments. IP40 rating is only for indoor control cabinet installation.