SIGNATURE SERIES G.R.A.S. 12HF — High-Frequency Power Module | SIGNATURE SERIES Platform
Engineering Background
The G.R.A.S. 12HF is a high-frequency switching power module engineered within the SIGNATURE SERIES platform for demanding industrial automation environments. Designed to deliver stable, regulated DC output under variable load conditions, it serves as the backbone power source for PLC racks, DCS marshalling cabinets, and distributed I/O assemblies where power integrity is non-negotiable.
Product Positioning
Targeting procurement engineers and system integrators who require a drop-in replacement or new-build power solution for SIGNATURE SERIES control architectures, the G.R.A.S. 12HF combines compact form factor with high conversion efficiency. It is the preferred choice for facilities requiring 24/7 uptime, minimal heat dissipation, and compliance with international industrial safety standards.
Complete Technical Specifications
- Model: G.R.A.S. 12HF
- Series / Platform: SIGNATURE SERIES
- Module Type: High-Frequency Switching Power Module
- Weight: 720 g
- Input Voltage Range: 85–264 V AC (wide-range universal input)
- Output Voltage: 24 V DC (nominal)
- Output Current: Refer to OEM datasheet for rated amperage
- Conversion Efficiency: ≥ 88% (typical at full load)
- Isolation: Input-to-output galvanic isolation
- Protection Features: Over-voltage, over-current, short-circuit, thermal shutdown
- Operating Temperature: 0°C to +55°C (storage: −25°C to +70°C)
- Humidity: 5–95% RH, non-condensing
- Mounting: DIN rail / rack-mount compatible (SIGNATURE SERIES backplane)
- Certifications: CE, UL (verify with OEM certificate of conformity)
- SKU: G.R.A.S. 12HF
Proven Application Environments
- PLC rack power supply in discrete manufacturing lines (automotive, electronics assembly)
- DCS power distribution in continuous process industries (petrochemical, pharmaceutical, food & beverage)
- Distributed I/O panel power in water treatment and utilities SCADA systems
- Machine safety controller power in packaging and material handling equipment
- Retrofit and spare-parts programs for legacy SIGNATURE SERIES installations
- New-build control panels requiring certified, high-efficiency power modules
Engineering Advantages
- High-Frequency Topology: Reduces transformer size and weight while improving dynamic load response — critical for PLC scan-cycle stability.
- Wide Input Range: Single SKU covers 85–264 V AC, eliminating voltage-selection errors during global deployments.
- Galvanic Isolation: Protects sensitive control logic from AC-side transients and ground loops common in industrial environments.
- Comprehensive Protection Suite: OVP, OCP, SCP, and thermal shutdown prevent cascade failures in multi-module racks.
- Platform Compatibility: Direct plug-in replacement for SIGNATURE SERIES racks — no rewiring, no firmware changes.
- Low Heat Dissipation: ≥88% efficiency minimizes panel cooling requirements and extends MTBF.
System Architecture & Signal Flow
The G.R.A.S. 12HF integrates into the SIGNATURE SERIES backplane as a dedicated power slot module. AC mains enter the module’s rectifier stage, are converted to high-frequency AC by the switching topology, stepped down via the isolation transformer, and regulated to 24 V DC output. The output bus feeds the CPU module, I/O modules, and communication cards through the backplane power rails. A status LED and optional fault relay output provide real-time health monitoring to the plant DCS or SCADA system.
- AC Input → EMI Filter → Bridge Rectifier → PFC Stage
- → High-Frequency Inverter → Isolation Transformer
- → Output Rectifier & Filter → 24 V DC Regulated Bus
- → Backplane Power Rails (CPU / I/O / Comms modules)
- → Fault Relay / Status LED → DCS/SCADA Monitoring
Sourcing & Quality Verification
- Origin: Sourced from authorized SIGNATURE SERIES distribution channels and verified OEM supply chains.
- Inspection: Each unit undergoes incoming inspection including visual check, label verification, and functional power-on test before dispatch.
- Documentation: Certificate of Conformity, OEM datasheet, and packing list provided with every shipment upon request.
- Traceability: Batch and serial number records maintained for full supply-chain traceability.
- Counterfeit Prevention: Konmask.com does not source from grey-market channels. All units carry OEM markings and are cross-referenced against manufacturer part databases.
Procurement Process
- Confirm Part Number: Verify G.R.A.S. 12HF against your BOM or existing rack label before ordering.
- Request Quote: Contact [email protected] or call +0086 19859288691 for volume pricing, lead time, and availability confirmation.
- Submit PO: Purchase orders accepted via email. Proforma invoice issued within 1 business day.
- Payment & Dispatch: Units dispatched within 1–3 business days of payment confirmation. Express and freight options available.
- Incoming Inspection: Recommend customer incoming inspection per IEC 62381 or equivalent site procedure upon receipt.
- Technical Support: Post-sale technical queries handled by Konmask engineering team — same contact channels.
Technical FAQ
Q: Is the G.R.A.S. 12HF a direct replacement for the original SIGNATURE SERIES power module?
A: Yes — it is designed as a form-fit-function replacement for SIGNATURE SERIES racks. No backplane modifications are required.
Q: Can this module operate on 110 V AC systems?
A: Yes. The wide-range input (85–264 V AC) covers both 110 V and 220 V AC mains without any manual switching.
Q: What is the expected service life?
A: Under normal operating conditions (≤40°C ambient, rated load), MTBF exceeds 100,000 hours per OEM specification. Actual service life depends on installation environment and maintenance practices.
Q: Do you provide a warranty?
A: Konmask.com provides a 12-month warranty against manufacturing defects from date of shipment. Contact [email protected] to initiate a warranty claim.
Q: Can I order a single unit for an emergency replacement?
A: Yes. Single-unit orders are accepted. Express shipping options are available for critical downtime situations.
Q: Is a datasheet available?
A: Yes — request the OEM datasheet and Certificate of Conformity via [email protected] at time of inquiry.
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Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
