Siemens 6EP1961-3BA21 SITOP Module - 40A Power Supply
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Siemens 6EP1961-3BA21 SITOP Redundancy Module | Uninterrupted Power Supply
- Ensures continuous operation with dual power supply backup
- High 40A output current for demanding industrial applications
- Smart LED indicators for instant system status monitoring
- Easy DIN rail mounting for quick installation
- High efficiency design minimizes energy loss
Product Overview
The Siemens 6EP1961-3BA21 redundancy module protects your critical systems from power failures. It combines two power supplies to create a reliable 40A backup solution. The module features clear status indicators and automatic switching. Perfect for applications where power interruptions are not acceptable.
Technical Specifications
- Product Code: 6EP1961-3BA21
- Module Type: SITOP PSE202U Redundancy Module
- Input Voltage: 24V DC (24-28.8V range)
- Output Voltage: 24V DC controlled
- Rated Current: 40A maximum
- Efficiency: 96.6% typical
- Power Loss: 34W at full load
- Protection Rating: IP20
- Operating Temperature: -25°C to +60°C
- Connection Type: Screw terminals
- Cable Size: 0.33-10mm² power, 0.5-2.5mm² signal
- Relay Contact: 8A/240V AC rating
- Dimensions: 70 x 125 x 120 mm
- Weight: 0.5 kg
- MTBF: 6.4 million hours
Installation Guide
- Mount on standard 35mm DIN rail
- Connect two SITOP power supplies to input
- Wire output to your load circuit
- Connect relay contacts for remote monitoring
- Verify green LED indicates normal operation
Frequently Asked Questions
What power supplies work with this module?
It pairs with two SITOP power supplies, each up to 20A, creating a 40A redundant system.
How does the redundancy feature work?
If one power supply fails, the other automatically takes over without interrupting your equipment.
What do the LED indicators show?
Green means both supplies are good, red indicates at least one supply has dropped below threshold.
Can I use this in high-temperature environments?
Yes, it operates up to 60°C, with current derating above 60°C to maintain reliability.
What industries typically use this module?
Manufacturing, process control, and automation systems where power continuity is critical.
Order & Support
- Package Contents: 1 x Siemens 6EP1961-3BA21 Redundancy Module
- Warranty Protection: 12-month quality guarantee
- Shipping Services: FedEx, UPS, DHL available worldwide
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