مرحل أمان Schmersal SRB301MC-24V

ال Schmersal SRB301MC-24V is a high-performance safety relay module. وتشمل مزاياها الأساسية 3 اتصالات السلامة زائد 1 إخراج الإشارة, قف 0 فئة التوقف, مستوى الأداء ه (بل ه) والتغطية التشخيصية ≥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. شرح كود النموذج

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

Order Numbers: 101190684 (الإصدار القياسي), 161190684 (International Version), 151190684 (China Version)

2. Main Technical Specifications

3. Cross-Brand Compatibility List

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. الأخطاء الشائعة & استكشاف الأخطاء وإصلاحها

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

6. Application Environments & حالات الصناعة

6.1 السيناريوهات القابلة للتطبيق

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

اللوجستية & التخزين: Safety gate monitoring for stackers and conveyors with BNS magnetic safety switches

ماكينات التعبئة والتغليف: Safety interlock for filling and labeling machines to ensure operational safety

Automotive Manufacturing: Safety zone monitoring for welding robots and coating lines

6.2 Not Recommended Scenarios

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 حالات التطبيق

قضية 1: Stamping Production Line for Automotive Parts

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

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

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

قضية 2: Safety System for Food Packaging Machinery

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

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

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

قضية 3: Stackers in Automated Warehouse

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

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

تأثير: 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 / فئة 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 (التطبيق الرئيسي)

قضية 1: بوابة الأمان & E-Stop Interlock for CNC Punch Press / Press Brake

1. أجهزة المطابقة: Schmersal BNS magnetic safety switches (machine protective gates) + Mushroom-head emergency stop buttons
2. عملية:

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

قضية 2: Rotating Hatch Monitoring for Machining Centers

1. أجهزة المطابقة: BNS magnetic safety switches (rotating protective gates)
2. عملية: 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. Applicable Equipment: Vertical machining centers, drilling & milling machines, المطاحن.
4. Automation Production Lines & الروبوتات

قضية 1: Safety Fence Monitoring for Robot Workcells

1. أجهزة المطابقة: Magnetic safety switches (fence access gates) + Safety light curtains
2. عملية:

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. السيناريوهات النموذجية: Automotive component handling, welding robots, loading/unloading robot cells.

قضية 2: Centralized Emergency Stop Control for Production Lines

1. عملية: 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. المزايا: Fast response and powerful circuit diagnosis, ideal for full-line safety interlock.
3. التعبئة والتغليف, طعام & Pharmaceutical Machinery

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

1. أجهزة المطابقة: BNS non-contact magnetic safety switches (movable machine guards)
2. عملية:

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. Applicable Equipment: Beverage fillers, daily chemical packaging machines, pharmaceutical blister packaging machines.

قضية 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. اللوجستية & Warehousing Equipment

قضية 1: Aisle Safety Gate Monitoring for Warehouse Stackers

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

قضية 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, Plastic & Injection Molding Machinery

قضية: بوابة الأمان & Mold Area Protection for Injection Molding Machines

1. أجهزة المطابقة: Magnetic safety switches (أمام & rear safety gates of injection machines)
2. عملية: 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 (Small Equipment & Control Cabinets)

قضية: Small Automated Tooling & Test Equipment

For various custom assembly and test tooling, this relay builds cost-effective high-level safety circuits (فئة 4 / بل ه) 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.