Description
Secure Elite 300 – Three-Phase Multi-Function Digital Panel Meter
The Secure Elite 300 is a precision-engineered, multi-line digital panel meter designed for true-RMS measurement across industrial and commercial electrical installations. Part of Secure Meters’ Elite series, this meter handles voltage, current, active and reactive power, energy, frequency, power factor, and THD measurement up to the 31st harmonic — all from a compact 96 x 96 mm DIN-standard housing. Whether you are retrofitting an existing switchgear panel or specifying meters for a new installation, the Elite 300 provides Class 1.0 energy accuracy and a wide-range auxiliary supply that eliminates the need for separate power supply transformers.
Key Features
- Universal 3-in-1 Wiring Configuration — A single common unit supports 1P2W, 3P3W, and 3P4W connections, reducing inventory and simplifying panel design.
- True-RMS Measurement — Accurate readings of voltage (20–500V), current (50 mA–6A), power, frequency (45–65 Hz), and power factor across the full operating range.
- Pass-Through CT Termination — The unique pass-through mechanism eliminates CT wire opening risks, removes the need for lugs and wire cutting, and ensures minimal burden on the CT circuit.
- Wide-Range Auxiliary Supply (40–300V AC/DC) — Operates on both AC and DC auxiliary power without requiring an external adapter, suitable for varied panel voltages.
- THD Measurement up to 31st Harmonic — Monitor total harmonic distortion for both voltage and current, critical for power quality assessment in installations with VFDs and non-linear loads.
- IP54 Front Protection — Front fascia rated IP54 as per IEC 60529, with IP20 terminal protection, ensuring reliable operation in dusty and humid panel environments.
- User-Configurable Alert Thresholds — Field-programmable high and low threshold values for various parameters enable proactive monitoring and alarm-based protection.
- Touch-Sense Keys — Sealed touch keys for display navigation and configuration — no mechanical buttons to wear out or allow dust ingress.
- Communication Options — Choose from RS-485 Modbus (half-duplex, user-configurable baud rate and parity), pulse output (24–240V DC / 48–240V AC), or alarm output (230V AC @ 2A).
- Field-Programmable CT/PT Ratios — CT primary programmable up to 15,000A and PT primary up to 2,000 kV, covering virtually any metering transformer configuration.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Secure Meters |
| Model | Elite 300 |
| Product Type | Multi-Function Digital Panel Meter |
| Display Type | LED / LCD variants |
| Number of Display Lines | 4 lines |
| Number of Digits | 7 digits (energy), 5 digits (instantaneous) |
| Character Size (LED) | 14.2 mm x 8.1 mm |
| Character Size (LCD) | 10.2 mm x 6.3 mm |
| Bar Graph | Yes, 7 steps up to 150% |
| Connection Type | Common unit for 1P2W / 3P3W / 3P4W |
| Measuring Voltage Range | 20 V to 500 V |
| Nominal Voltage Range (Un) | 57.5–240 V (P-N) / 100–415 V (P-P) |
| Over Voltage Rating | 150% of Un continuous |
| Measuring Current Range | 50 mA to 6 A |
| Nominal Current Range (In) | 1 A or 5 A |
| Overload Current | 150% of In continuous |
| Short-Time Over Current | 120 A for 1 second |
| Frequency Range | 45 to 65 Hz |
| Power Factor Range | 0.1 lag – Unity – 0.1 lead |
| Auxiliary Power Supply | 40 to 300 V AC / DC |
| Accuracy – Voltage / Current | ±0.5% FS |
| Accuracy – Power | ±0.5% FS (at unity PF) |
| Accuracy – Power Factor | ±0.005 |
| Accuracy – Frequency | ±0.1 Hz |
| Active Energy Accuracy | Class 1.0 (IEC 62053-21) / Class 0.5s (IEC 62053-22, LCD only) |
| Reactive Energy Accuracy | Class 2 (IEC 62053-23) |
| Temperature Coefficient | Voltage, Current: 0.05% / °C |
| Auxiliary Supply Burden | <4.5 VA (LED) / <3.5 VA (LCD) |
| Bezel Size | 96 x 96 x 55 mm (70.8 mm with parking terminals) |
| Panel Cut-Out | 92 x 92 mm (+0.5 mm tolerance) |
| Weight | Approx. 320 g |
| Enclosure Material | Flame Retardant Polycarbonate (UL 94 V0) |
| Voltage / Auxiliary Terminals | Combicon connectors, up to 2.5 mm² cable |
| Current Terminals | Pass-through CT connection, up to 4 mm² cable |
| Digital Output / RS-485 Terminals | U-type / ring-type, up to 4 mm² / Combicon up to 2.5 mm² |
| CT Ratio (Programmable) | Primary up to 15,000 A |
| PT/VT Ratio (Programmable) | Primary up to 2,000 kV |
| Demand Interval | Field-programmable: 1 to 60 minutes |
| Protection Degree | Front: IP54 / Terminals: IP20 (IEC 60529) |
| ESD Immunity | IEC/EN 61000-4-2 (per IEC/EN 61326) |
| EFT Immunity | IEC/EN 61000-4-4 (per IEC/EN 61326) |
| Insulation | CAT II, 4 kV RMS 50 Hz for 1 minute |
| Impulse Withstand | 6.5 kV |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -25°C to +80°C |
| Humidity | 95% non-condensing |
| Maximum Altitude | 2,000 m |
| RS-485 Communication | Modbus half-duplex, floating point, 500 ms refresh, 1200–19200 bps |
| Pulse Output | 24–240V DC or 48–240V AC @ 100 mA, pulse width 80/240/300 ms |
| Alarm Output | N/O type, 230V AC @ 2A, pulse width 80/240/300 ms |
| Compliance Standards | IEC/EN 61557-12, IEC/EN 62053-21/22/23/31, IS 13779, IS 14697, IEC/EN 61010-1, IEC/EN 61010-2-030 |
Common Applications
- HV and MV switchgear panels — monitoring voltage, current, and power quality in utility and industrial substations.
- Power Control Centre (PCC) and Motor Control Centre (MCC) panels — real-time measurement and energy accounting for motor-driven textile, CNC, and packaging machinery.
- LV distribution panels — three-phase metering in commercial buildings, hospitals, IT parks, and manufacturing facilities.
- Control and relay panels — providing accurate measurement data alongside protection relay systems.
- Building Management Systems (BMS) — RS-485 Modbus integration for centralized energy monitoring and automated load management.
- Test benches and laboratory equipment — precision measurement with programmable CT/PT ratios for calibration and testing setups.
Why Buy from Shansen Enterprises?
- Authorized Secure Meters dealer — 100% genuine products with full manufacturer warranty.
- Ready stock of popular Secure Elite series meters and variants.
- Expert technical support for meter selection, CT/PT ratio configuration, and Modbus integration.
- Fast delivery across Coimbatore and Tamil Nadu — call or WhatsApp for same-day dispatch on stocked items.
Compatible Accessories
- Parking terminals for CT terminations (optional accessory for safe CT short-circuiting during installation and maintenance).
- Current transformers (CTs) — available in various primary ratings to match your metering requirement.
- Potential transformers (PTs/VTs) — for HV and MV applications requiring stepped-down voltage measurement.
- RS-485 to USB/Ethernet converters — for connecting the meter to SCADA, BMS, or PC-based monitoring software.
- DIN-rail mounting adapters and panel gaskets for IP54-rated installations.
- All accessories available from stock. Ask us to bundle your complete metering assembly.
FAQ (Frequently asked questions)
Q1: What wiring configurations does the Secure Elite 300 support? The Elite 300 is a common unit that supports 1P2W (single-phase two-wire), 3P3W (three-phase three-wire), and 3P4W (three-phase four-wire) configurations. You select the wiring mode during field programming, so a single SKU covers all three configurations — this simplifies inventory for panel builders.
Q2: What is the pass-through CT termination mechanism, and why does it matter? The pass-through mechanism allows CT secondary wires to be connected directly through the meter terminal block without cutting or crimping lugs. This eliminates the risk of accidentally opening CT secondaries (which can produce dangerous voltages), reduces installation time, and minimizes CT circuit burden. It accepts cables up to 4 mm².
Q3: How does the Elite 300 compare to the Elite 100? The Elite 100 uses an LED display and includes MODBUS communication, pulse output, and alarm output options. The Elite 300 is the higher-tier variant available in both LED and LCD display types, with the LCD version offering Class 0.5s active energy accuracy (per IEC 62053-22) compared to Class 1.0 on the LED. Both share the same 96 x 96 mm bezel and panel cut-out dimensions.
Q4: Can the Elite 300 be integrated with a SCADA or BMS system? Yes. The RS-485 Modbus variant supports half-duplex communication with floating-point data, a 500 ms refresh rate, and user-configurable baud rate (1200–19200 bps), parity (None/Odd/Even), and stop bits (1 or 2). You can also configure 25 Modbus register addresses via software for custom integration. An RS-485 to Ethernet converter (available separately) enables TCP/IP connectivity.
Q5: What is the maximum CT and PT ratio the meter can be programmed for? The Elite 300 supports field-programmable CT primary values up to 15,000 A and PT/VT primary values up to 2,000 kV. Both primary and secondary values are user-configurable, making it suitable for virtually any metering transformer setup from LV distribution to HV substation panels.
Q6: How do I order the Secure Elite 300 from Shansen Enterprises? You can place an order or request a quote by calling or messaging us on WhatsApp. You can also email your requirement with the model number, quantity, and any variant preferences (LED/LCD, RS-485/pulse/alarm). We offer fast delivery across Coimbatore and ship pan-India. Visit our store or contact us for current stock availability and competitive pricing.
