KRB 1F144-0-LED-NC-US0E V101-10-0008 Energy Measuring Device | Replacement, Equivalent & Selection Guide
The KRB 1F144-0-LED-NC-US0E (V101-10-0008) is a DIN 144×144mm panel-mount energy measuring device featuring an LED display and normally-closed (NC) relay output. Designed for industrial power monitoring applications, it measures and displays active energy consumption in real time, making it a reliable choice for factory automation, building energy management, and utility metering systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1F144-0-LED-NC-US0E |
| Version / Part No. | V101-10-0008 |
| Brand | KRB |
| Display Type | LED |
| Panel Cutout | 138 × 138 mm (DIN 144) |
| Output Contact | NC (Normally Closed) Relay |
| Measurement Function | Active Energy (kWh) |
| Supply Voltage | Per US0E suffix — universal supply |
| Weight | 1,150 g (approx.) |
| Ingress Protection | IP52 (front panel) |
| Mounting | Panel / Flush mount |
| Communication | Pulse output via NC relay |
Compatible Replacement & Equivalent Models
If the KRB 1F144-0-LED-NC-US0E is discontinued, out of stock, or outside your budget, the following models offer compatible functionality and can serve as drop-in or near-drop-in replacements:
| Brand | Model | Display | Output | Panel Size | Notes |
|---|---|---|---|---|---|
| KRB | 1F144-0-LED-NO-US0E | LED | NO Relay | 144×144 | Same series, NO contact variant |
| Schneider Electric | iEM3110 | LCD | Pulse/RS485 | DIN Rail | Higher accuracy, DIN rail mount |
| Carlo Gavazzi | EM24-DIN | LCD | RS485 / Pulse | DIN Rail | Multi-function energy analyzer |
| Eastron | SDM120-Modbus | LCD | Modbus RTU | DIN Rail | Cost-effective, single-phase |
| Acrel | ACR10R-D16TE4 | LED | RS485 + Relay | 96×96 | Compact alternative |
Note: Always verify wiring diagrams, voltage ratings, and communication protocols before substituting. Contact support@konmask.com for compatibility confirmation.
Why Choose the Original Model
- Exact form factor: 144×144mm DIN panel cutout ensures zero-modification installation in existing enclosures.
- NC relay output: Fail-safe design — circuit remains closed under normal operation, ideal for alarm and pulse-counting applications.
- LED readability: High-brightness LED display ensures clear readings in bright industrial environments.
- Proven reliability: KRB instruments are widely deployed in Chinese industrial and utility metering infrastructure.
- Direct sourcing: Konmask.com sources from authorized channels, ensuring genuine parts with full traceability.
Typical Applications
- Factory floor energy sub-metering and cost allocation
- Building Management Systems (BMS) energy monitoring points
- Utility billing verification and tenant sub-metering
- Industrial panel boards and MCC (Motor Control Centers)
- Renewable energy monitoring (solar inverter output measurement)
- Data center power usage effectiveness (PUE) monitoring
System Compatibility
The 1F144-0-LED-NC-US0E integrates into systems requiring a panel-mount energy display with pulse output. Typical compatible system environments include:
- SCADA systems via pulse counting input modules
- PLC-based energy management (Siemens S7, Mitsubishi FX/Q, Omron CP/CJ series)
- Building automation controllers (BACnet/Modbus gateways with pulse input)
- Standalone panel boards requiring local kWh display without network connectivity
Selection Guide
Use the table below to select the correct KRB 1F144 series variant for your application:
| Requirement | Recommended Model |
|---|---|
| NC relay output + LED display (this model) | 1F144-0-LED-NC-US0E |
| NO relay output + LED display | 1F144-0-LED-NO-US0E |
| RS485 Modbus communication required | Consider Carlo Gavazzi EM24 or Eastron SDM630 |
| 96×96mm panel cutout required | KRB 1F96 series or Acrel ACR10R |
| Multi-phase (3-phase) measurement | KRB 3F144 series or equivalent 3-phase meter |
| DIN rail mounting preferred | Schneider iEM3110 / Carlo Gavazzi EM24-DIN |
Quality Assurance & Sourcing
- Authentic parts only: All KRB instruments sold on Konmask.com are sourced from verified distributors and authorized supply chains.
- Pre-shipment inspection: Each unit undergoes visual and functional checks before dispatch.
- Traceability: Batch and serial number documentation available on request.
- Warranty: 12-month warranty against manufacturing defects under normal operating conditions.
- Export compliance: Properly documented for cross-border shipment with accurate HS codes and commercial invoices.
How to Order
- Confirm your panel cutout size (138×138mm for DIN 144) and supply voltage.
- Verify relay output type required: NC (this model) or NO.
- Add KRB 1F144-0-LED-NC-US0E V101-10-0008 to cart, or contact us for bulk pricing.
- For OEM/project quantities (>10 units), request a formal quotation via support@konmask.com.
- Lead time: typically 3–7 business days for in-stock items; 2–4 weeks for special orders.
Replacement & Compatibility FAQ
Q: Can I replace the 1F144-0-LED-NC-US0E with a NO relay version?
A: Only if your circuit is redesigned accordingly. NC and NO contacts behave inversely — substituting without rewiring will invert your alarm or pulse logic.
Q: Is this meter compatible with Modbus RTU systems?
A: No. This model uses a pulse relay output only. For Modbus RTU, consider the Eastron SDM120-Modbus or Carlo Gavazzi EM24-DIN.
Q: What is the difference between V101-10-0008 and other version codes?
A: The version code (V101-10-0008) identifies the firmware/hardware revision. For replacement purposes, any V101 revision is functionally equivalent unless KRB specifies otherwise.
Q: Can Konmask.com source discontinued KRB models?
A: Yes. Contact us with your full part number and required quantity — we maintain access to legacy stock and can advise on the best available equivalent.
Q: What is the minimum order quantity?
A: No minimum for standard orders. Bulk discounts apply for orders of 5+ units.
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