Frequency Signal Isolation Solution – WEIDMULLER 8581180000 | ACT20X Series
The WEIDMULLER 8581180000 is a precision frequency signal isolating converter engineered for industrial automation environments where signal integrity, galvanic isolation, and noise immunity are mission-critical. Sourced and verified by Konmask.com, this module is stocked for immediate B2B procurement.
Where This Product Is Used
This frequency signal isolating converter is deployed across a wide range of industrial sectors and control architectures:
- Process Automation: Isolating pulse/frequency outputs from flow meters, turbine meters, and encoders before feeding PLC or DCS analog input cards.
- Power Generation & Utilities: Converting and isolating frequency signals from generators, turbines, and grid monitoring equipment to SCADA systems.
- Water & Wastewater Treatment: Signal conditioning for electromagnetic flow meters and pump speed feedback loops.
- Oil & Gas: Intrinsically safe signal chain construction where ground loop isolation is mandatory per IEC/ATEX requirements.
- Conveyor & Drive Systems: Isolating encoder or tachometer frequency outputs from VFD drives to prevent ground loop interference in motion control panels.
- Building Automation (BAS/BMS): Pulse counting and frequency conversion for energy meters and HVAC equipment monitoring.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | WEIDMULLER |
| Part Number / SKU | 8581180000 |
| Product Family | ACT20X Signal Conditioner Series |
| Function | Frequency Signal Isolating Converter |
| Signal Type | Frequency / Pulse input → Frequency / Pulse output (isolated) |
| Isolation | Galvanic isolation between input, output, and power supply |
| Weight | 118.7 g |
| Mounting | DIN rail (35 mm) |
| Housing | Compact modular enclosure |
| Country of Origin | Germany |
For full electrical specifications (input frequency range, output range, supply voltage, isolation voltage, accuracy class), refer to the official WEIDMULLER datasheet for 8581180000 or contact Konmask.com for documentation.
Why Engineers Specify This Model
- True Galvanic Isolation: Eliminates ground loops and common-mode noise that corrupt frequency signals in mixed-voltage industrial panels.
- ACT20X Platform Compatibility: Integrates seamlessly with other WEIDMULLER ACT20X signal conditioners for a unified, modular signal conditioning rail.
- Compact DIN-Rail Footprint: Minimizes panel real estate without sacrificing performance — critical in retrofit and upgrade projects.
- High Signal Fidelity: Maintains pulse accuracy across the full frequency range, essential for flow totalisation and speed measurement applications.
- Plug-and-Play Wiring: Spring-clamp or screw terminals (per variant) reduce installation time and wiring errors in the field.
- Proven WEIDMULLER Reliability: Backed by WEIDMULLER’s global installed base in process and factory automation since 1850.
Complete System Bill of Materials
For a complete frequency signal isolation and conditioning loop, engineers typically specify the following alongside the 8581180000:
- WEIDMULLER ACT20X power supply module (24 VDC DIN rail PSU)
- WEIDMULLER terminal blocks (WDU / ZDU series) for field wiring termination
- Shielded twisted-pair cable (signal wiring, ≥ 0.5 mm²)
- DIN rail (TS 35) and end brackets
- PLC analog/digital input module compatible with isolated frequency output
- Surge protection device (SPD) for field-side signal lines (optional, recommended for outdoor installations)
Contact support@konmask.com for a complete BOM quotation tailored to your project.
Compliance & Industry Standards
- CE Marked — compliant with EU Low Voltage Directive and EMC Directive
- UL / cUL Listed (verify specific approval on product label)
- RoHS Compliant — restriction of hazardous substances per EU Directive 2011/65/EU
- Designed and tested to IEC 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use)
- EMC tested per EN 61000 series for industrial environments
Quality Assurance & Sourcing
Konmask.com sources WEIDMULLER 8581180000 units through verified industrial distribution channels. Every unit dispatched undergoes the following quality checks:
- Visual inspection for physical damage, label integrity, and correct part marking
- Verification of manufacturer lot codes and date codes against procurement records
- Packaging inspection to confirm factory-sealed condition
- Cross-reference of SKU 8581180000 against WEIDMULLER’s official product catalog
Counterfeit components are a known risk in the industrial automation supply chain. Konmask.com maintains full traceability documentation available upon request for regulated industries.
How to Source This Part
- Add to Cart — Order directly on Konmask.com for B2B pricing and fast dispatch.
- Request a Quote — For volume orders (5+ units), email support@konmask.com with your project quantity and delivery timeline.
- Lead Time — In-stock units ship within 1–3 business days. Out-of-stock lead times are quoted individually.
- Export & Cross-Border — Konmask.com supports international B2B procurement. Contact us for export documentation, HS code confirmation, and freight options.
- Technical Pre-Sales Support — Our engineering team can confirm compatibility with your existing signal chain before you order.
Application-Specific FAQ
Q: Can the 8581180000 accept a 0–10 kHz pulse input from a turbine flow meter?
A: The ACT20X frequency converter series is designed for industrial pulse/frequency inputs. Confirm the exact input frequency range against the datasheet or contact us — we can verify compatibility for your specific meter output.
Q: Is galvanic isolation provided between all three ports (input, output, power)?
A: Yes. WEIDMULLER ACT20X isolating converters provide 3-way galvanic isolation as standard, eliminating ground loops across the entire signal chain.
Q: Can this module be used in ATEX Zone 2 hazardous areas?
A: The standard 8581180000 is not ATEX-certified. For hazardous area installations, consult WEIDMULLER’s Ex-rated signal conditioner range or use an approved Zener barrier in conjunction with this module in the safe area.
Q: What is the output signal format — does it provide a 4–20 mA analog output or a frequency output?
A: The 8581180000 is a frequency-to-frequency isolating converter (not a frequency-to-analog converter). If you require a 4–20 mA output, please enquire about the WEIDMULLER ACT20X F/I variant.
Q: Do you provide a WEIDMULLER certificate of conformity or test report?
A: Yes. Traceability documentation and manufacturer certificates of conformity are available upon request for quality-audited procurement processes.
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