This voltage protection device operates at 24VDC±15% (supports redundant power supply expansion), consumes 6-10W, operates at -25℃ to 70℃, stores at -40℃ to 85℃, and maintains a humidity of 5%-95% (non-condensing). It is responsible for monitoring equipment safety circuits, fault diagnosis, early warning of dangerous conditions, and outputting emergency stop commands. It is suitable for high-risk industries such as power, petrochemical, metallurgy, intelligent manufacturing, rail transportation, pharmaceuticals, and wind power. It features 5 safety inputs, 1 safety output, and 1 signal feedback channel, supports 24VDC wet contact/PNP sensor signals (4-20mA), and outputs as relay dry contacts (5A/250V AC or 5A/30V DC).

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　　Other names for SR745-W2-P5-G5-HI:

　　Multilin 750 Feeder Management Relay SR745-W2-P5-G5-HI

　　SR745-W2-P5-G5-HI Current Protection Device

　　Relay Protector SR745-W2-P5-G5-HI

　　SR745-W2-P5-G5-HI Motor Protection Device

　　Brand and Series: General Electric (GE) SR750 series industrial-grade safety monitoring relays, designed for industrial automation systems, compliant with IEC 61508 (SIL 3), EN 61000 and UL 508 standards, employing a redundant safety architecture.

　　Core Functions: Monitors equipment safety circuits, diagnoses faults, provides early warnings of hazardous conditions, and outputs emergency stop commands. Suitable for high-risk industries such as power, petrochemical, metallurgy, intelligent manufacturing, rail transportation, pharmaceuticals, and wind power.

　　Technical Specifications

　　Channel Configuration: 5 safety inputs + 1 safety output + 1 signal feedback channel, supporting 24VDC wet contact/PNP sensor signals (4-20mA), output is relay dry contact (5A/250V AC or 5A/30V DC).

　　Electrical Parameters: Operating voltage 24VDC±15% (supports redundant power supply expansion), power consumption 6-10W, operating temperature -25℃ to 70℃, storage temperature -40℃ to 85℃, humidity 5%-95% (non-condensing).

　　Output Signal: Relay dry contact output, contact capacity 5A/250V AC, 5A/30V DC.

　　Operating Voltage: 24VDC±15%, supports redundant power supply expansion.

　　Environmental Adaptability:

　　Operating Temperature: -25℃ to 70℃ (Wide temperature design, resistant to high temperature, high cold, high humidity, and dusty environments).

　　Storage Temperature: -40℃ to 85℃.

　　Relative Humidity: 5%-95% (Non-condensing).

　　Physical Characteristics:

　　Protection Rating: IP20 (Module-level protection, with metal shielding design to resist electromagnetic interference and dust intrusion).

　　Installation Method: 35mm standard DIN rail mounting, dimensions 105mm×75mm×60mm, weight 0.5kg.

　　Housing Material: Flame-retardant ABS engineering plastic + metal shielding base.

　　Performance Specifications:

　　Power Consumption: Typical 6W, maximum 10W.

　　Response Time: Safety circuit fault response time ≤10ms.

　　Insulation Resistance: ≥100MΩ (500VDC).

　　Withstand Voltage: 2500Vac between input/output/power supply for 1 minute without breakdown.

　　MTBF (Mean Time Between Failures): ≥2,000,000 hours.

　　Safety and Diagnostic Functions

　　Safety Certification: SIL 3, the highest safety integrity level, compliant with IEC 61508 standards, meeting the needs of high-risk industrial scenarios.

　　Diagnostic Capabilities: Input channel fault self-diagnosis, power anomaly monitoring, output contact adhesion detection, and safety circuit fault alarm.

　　Interference Immunity: Compliant with EN 55011/EN 61000-6-2 industrial EMC standards, effectively resisting electromagnetic interference.

　　Compatibility and Integration

　　System Compatibility: Deeply compatible with GE industrial automation control systems, supporting collaborative operation with third-party PLC safety control modules and industrial safety protection platforms.

　　Communication Capabilities: Supports standard communication protocols (such as RS485, Modbus RTU, etc.), enabling data exchange with host systems or other devices.

　　Core Functions

　　Safety Protection: Emergency stop monitoring, safety door status detection, overload/overcurrent protection, automatic power-off in case of fault, response time ≤10ms. Diagnostic Capabilities: Input channel self-diagnosis, power anomaly monitoring, output contact adhesion detection, and safety circuit fault alarm.

　　Interference Resistance and Compatibility: Compliant with industrial EMC standards; metal shielding design resists electromagnetic interference; seamlessly compatible with GE and third-party PLC/safety control systems.

　　Extended Functions: Supports redundant power supplies, remote monitoring, automated operation (such as backup equipment switching), event logging, and programmable setpoint menus.

　　Application Scenarios:

　　Power Industry: Thermal/hydropower equipment, distribution feeder protection, busbar and transformer backup protection.

　　Petrochemical and Metallurgical Industries: Refining units, steelmaking/rolling equipment, and reactor safety control.

　　Smart Manufacturing: Automated production lines and robot system safety protection.

　　Rail Transit: Traction equipment and signaling system safety monitoring.

　　Other Fields: Pharmaceutical production lines, papermaking equipment, water treatment systems, wind/nuclear power auxiliary equipment, mining machinery, and municipal engineering electromechanical equipment.

　　Summary: The SR745-W2-P5-G5-HI is a high-reliability safety monitoring relay designed by GE for high-risk industrial scenarios. With its SIL 3 safety rating, wide temperature adaptability, strong anti-interference capabilities, and multi-industry compatibility, it has become the preferred safety protection device in the power, petrochemical, and metallurgical industries, effectively reducing equipment failure risks and ensuring personnel and system safety.

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