Industrial Circuit Protection Solution – Murrelektronik D-71570 | MURR Electronic Series
Where This Product Is Used
The Murrelektronik D-71570 Electronic Circuit Protection Module is engineered for demanding industrial environments where reliable 24 VDC power distribution and selective short-circuit protection are non-negotiable. Typical deployment scenarios include:
- PLC Control Panels – Protects 24 VDC load circuits fed from Siemens, Allen-Bradley, Mitsubishi, and Omron PLCs, preventing nuisance tripping and protecting I/O modules from overcurrent faults.
- Automation Cabinet Power Distribution – Used as a downstream protection device on 24 VDC bus bars in machine-builder and OEM control cabinets, replacing conventional fuse holders with electronic selectivity.
- Conveyor & Material Handling Systems – Safeguards distributed sensor/actuator circuits along conveyor lines where cable runs are long and fault currents must be isolated without shutting down adjacent channels.
- Robotic Work Cells – Provides channel-selective protection for servo drives, safety relays, and vision system power supplies within robot controller enclosures.
- Process Automation & DCS Panels – Deployed in oil & gas, chemical, and water treatment facilities to protect field instrument loops and solenoid valve circuits.
- Building Automation & HVAC Control – Protects BMS controller outputs and actuator wiring in commercial building control panels.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | D-71570 |
| Manufacturer | Murrelektronik (MURR) |
| Product Series | MURR Electronic Circuit Protection Series |
| Product Type | Electronic Circuit Protection Module |
| Nominal Input Voltage | 24 VDC |
| Mounting | DIN Rail (35 mm TS35) |
| Protection Function | Electronic selective circuit protection |
| Reset Type | Automatic / Manual (per channel) |
| Fault Indication | LED status indicator per channel |
| Country of Origin | Germany (Murrelektronik GmbH, Oppenweiler, D-71570) |
| Weight | 2,670 g |
| Shipping | Physical goods – requires shipping |
For complete electrical ratings (channel count, trip current, ambient temperature range, IP rating), refer to the official Murrelektronik D-71570 datasheet or contact our technical team.
Why Engineers Specify This Model
- Electronic Selectivity – Unlike conventional fuses, the D-71570 trips only the faulted channel, keeping all other circuits live and minimising production downtime.
- No Fuse Replacement – Automatic or manual reset eliminates the need to stock fuse cartridges and reduces maintenance labour in the field.
- Compact DIN-Rail Footprint – Saves panel space compared to equivalent fuse-holder arrays, enabling denser cabinet layouts.
- Per-Channel Diagnostic LED – Instant visual fault identification without opening the cabinet door, reducing MTTR.
- Murrelektronik German Engineering – Manufactured to IEC/EN standards by a globally recognised automation component specialist with decades of field-proven reliability.
- Drop-in PSU Compatibility – Integrates directly with 24 VDC outputs from Phoenix Contact QUINT, PULS QS, Siemens SITOP, and equivalent power supplies.
Complete System Bill of Materials
For a fully protected 24 VDC distribution system, engineers typically pair the D-71570 with:
- 24 VDC DIN-rail power supply (e.g., PULS QS10, Phoenix Contact QUINT 4, Siemens SITOP PSU100S)
- 24 VDC bus bar or power distribution terminal block
- DIN-rail mounting hardware (35 mm TS35 rail + end brackets)
- Cable management accessories (duct, tie mounts)
- PLC I/O modules (Siemens ET 200SP, Allen-Bradley Point I/O, Mitsubishi MELSEC)
- Upstream surge protection device (SPD) per IEC 61643
Contact support@konmask.com for a complete BOM quotation tailored to your project.
Compliance & Industry Standards
- Designed and manufactured in accordance with IEC 60947 (Low-voltage switchgear and controlgear)
- CE Marked – compliant with EU Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU)
- UL/cUL recognition – verify specific listing on Murrelektronik official product page
- RoHS Compliant – restriction of hazardous substances per EU Directive 2011/65/EU
- Suitable for use in ATEX Zone 2 / IECEx applications when installed per manufacturer guidelines (verify with datasheet)
Quality Assurance & Sourcing
Konmask.com sources industrial automation components through verified supply channels. Every unit undergoes the following before dispatch:
- Visual and label inspection against manufacturer specifications
- Verification of serial number / date code authenticity
- Secure anti-static packaging for transit protection
- Documentation package available on request (CoC, test reports, datasheet)
We do not sell counterfeit, refurbished-as-new, or grey-market goods. All products are traceable to authorised distribution or OEM surplus channels.
How to Source This Part
- Add to Cart – Click the purchase button above to order online with secure checkout.
- Request a Quote – For volume orders (>5 units) or project BOM pricing, email support@konmask.com.
- Lead Time – In-stock units ship within 1–3 business days. Out-of-stock items: contact us for ETA.
- Export & Cross-border – We ship globally. HS Code and export documentation available on request.
- Phone / WeChat – Reach our technical sales team at +0086 19859288691.
Application-Specific FAQ
Q: Can the D-71570 replace conventional fuse holders in an existing panel retrofit?
A: Yes. The D-71570 is designed for DIN-rail installation and accepts standard 24 VDC input, making it a direct functional replacement for fuse-holder arrays in retrofit projects. Verify channel count and current ratings against your existing fuse schedule.
Q: What happens when one channel trips – do other channels stay live?
A: Yes. Electronic selectivity ensures only the faulted channel is disconnected. All other protected circuits remain energised, which is critical for maintaining production continuity in multi-circuit panels.
Q: Is this module compatible with Siemens SITOP power supplies?
A: The D-71570 accepts standard 24 VDC input and is compatible with SITOP and equivalent PSUs. Always verify the PSU’s peak current capability meets the module’s inrush requirements per the datasheet.
Q: Do you provide a Certificate of Conformance (CoC)?
A: Yes, CoC and traceability documentation are available on request for all orders. Contact support@konmask.com.
Q: Can I order a sample unit before committing to a larger quantity?
A: Yes. Single-unit orders are accepted. Contact us for volume pricing on larger quantities.
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Contact: support@konmask.com | +0086 19859288691
