SIEMENS 6EP1961-2BA11 SITOP PSE200U SELECTIVITY MODULE

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SIEMENS 6EP1961-2BA11 SITOP PSE200U Selectivity Module 

Product Description

The SIEMENS 6EP1961-2BA11 is a selectivity module from the SITOP PSE200U series, designed for distributing and monitoring load currents in 24V DC industrial power supply systems. It ensures reliable overload and short-circuit protection across four output channels, each adjustable from 0.5–3A, making it ideal for machine control, automation, and distributed I/O systems .

Key Features & Advantages

1. Selective Circuit Protection

   • Independent current adjustment (0.5–3A per channel) via potentiometers .

   • Fast fault detection: Disconnects only the faulty branch while maintaining power to unaffected circuits .

2. Flexible Diagnostics & Control

   • Group signaling contact for collective fault indication .

   • LED indicators (green = normal, yellow = manually disabled, red = overload trip) .

   • Remote reset via 24V DC signal (>15V) or manual push-button .

3. Robust Industrial Design

   • DIN rail mounting (72 × 80 × 72 mm) with screw terminals for secure wiring .

   • Wide input voltage range (22–30V DC) and overvoltage tolerance up to 35V .

4. Integration with SIMATIC Systems

   • Compatible with SIMATIC S7-1200/1500/300/400 PLCs via free function blocks for diagnostics .

5. Certifications & Safety

   • Complies with CE, UL, cULus, ATEX, and DNV/GL standards .

   • IP20 protection against dust and accidental contact .

Technical Specifications

Applications

• Industrial control panels (motor drives, conveyor systems) .

• Machine safety systems (emergency stop circuits) .

• Process automation (distributed sensor/actuator power) .

Installation & Safety Notes

• Wiring: Use shielded cables for noise-sensitive applications .

• Reset Delay: Wait ~20s after a trip (LED turns red blinking) before resetting .

• Environment: Avoid condensation or corrosive gases (IP20 rating) 

The structure and details of the product：

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