GE PQMII-T20-C-A Power Quality Monitor | Replacement, Equivalent & Selection Guide
The General Electric PQMII-T20-C-A is a multifunction power quality monitoring relay designed for medium-voltage distribution systems. It delivers comprehensive metering, protection, and data logging in a single compact unit — a trusted choice for utilities, industrial plants, and commercial facilities worldwide. Konmask.com supplies genuine and verified-equivalent units with full traceability.
Technical Specifications
- Model / SKU: PQMII-T20-C-A
- Manufacturer: General Electric (GE Grid Solutions)
- Series: PQMII — Power Quality Meter II
- Form Factor: 19-inch rack / panel-mount, 2U
- Voltage Inputs: Up to 600 V AC (L-L), configurable VT ratio
- Current Inputs: 1 A / 5 A nominal CT secondary
- Frequency: 50 / 60 Hz
- Metering Parameters: V, I, kW, kVAR, kVA, PF, Hz, THD, harmonics up to 63rd
- Display: 20-character × 2-line backlit LCD
- Communications: RS-485 Modbus RTU; optional DNP 3.0 / IEC 60870-5-101
- Digital Inputs / Outputs: 8 DI / 4 relay outputs (Form C)
- Data Logging: Waveform capture, event log, load profile
- Power Supply: 20–60 V DC / 20–48 V AC (T20 variant)
- Operating Temperature: −20 °C to +60 °C
- Weight: 1.46 kg
- Standards: IEC 61000, ANSI C12.20, CE, UL
Compatible Replacement & Equivalent Models
The table below lists direct and functional equivalents for the PQMII-T20-C-A. Always verify wiring, communication protocol, and firmware compatibility before substitution.
| Model | Brand | Compatibility Level | Key Difference |
|---|---|---|---|
| PQMII-T20-C-B | GE | Direct (variant) | Extended I/O option |
| PQMII-T20-C-A-HI | GE | Direct (variant) | High-impedance ground fault |
| EPM 7000 | GE | Functional upgrade | Ethernet, larger display |
| ION7300 | Schneider Electric | Functional equivalent | Different comms protocol |
| PM5560 | Schneider Electric | Functional equivalent | Modbus TCP/IP native |
| PAC3200 | Siemens | Functional equivalent | DIN-rail mount, compact |
| EM4800 | Carlo Gavazzi | Partial equivalent | No waveform capture |
Need help selecting the right replacement? Contact our engineering team at support@konmask.com.
Why Choose the Original Model
- Proven field reliability — deployed in thousands of utility and industrial sites globally since the early 2000s
- Native GE EnerVista software integration — seamless configuration, firmware updates, and data export
- Comprehensive harmonic analysis — up to 63rd harmonic, exceeding most functional equivalents
- Flexible power supply (T20) — wide-range DC/AC input suits substation battery-backed panels
- Established spare-parts ecosystem — accessories, cables, and mounting kits readily available
- Long-term support — GE Grid Solutions provides firmware and documentation archives
Typical Applications
- Medium-voltage switchgear and motor control centers (MCC)
- Utility substation feeder monitoring and revenue metering
- Industrial plant power distribution panels
- Demand-side energy management and billing verification
- Power quality audits: voltage sag/swell, flicker, THD compliance
- Generator and UPS output monitoring
- Building automation and SCADA integration via Modbus RTU
System Compatibility
- SCADA / DCS: Compatible with GE iFIX, Wonderware, Ignition, and any Modbus RTU master
- GE Software: EnerVista PQMII Setup, EnerVista Viewpoint Monitoring
- Communication Bus: RS-485 (2-wire or 4-wire), up to 115,200 baud
- Optional Protocols: DNP 3.0 Level 2, IEC 60870-5-101 (factory-ordered)
- CT Ratios: Configurable 1–9999:1 (1 A or 5 A secondary)
- VT Ratios: Configurable 1–9999:1
Selection Guide
Use the decision tree below to confirm the PQMII-T20-C-A is the right choice — or identify the best alternative:
- Step 1 — Power supply: Is your panel supply 20–60 V DC or 20–48 V AC? → Yes: T20 variant ✓ | No: consider T32 (100–240 V AC/DC)
- Step 2 — Communication: Do you need RS-485 Modbus RTU only? → Yes: PQMII-T20-C-A ✓ | Need Ethernet: consider EPM 7000 or PM5560
- Step 3 — Harmonic analysis: Do you require up to 63rd harmonic? → Yes: PQMII-T20-C-A ✓ | Basic THD only: PAC3200 or EM4800 may suffice
- Step 4 — Waveform capture: Do you need oscillography / fault waveform recording? → Yes: PQMII-T20-C-A ✓ | No: lower-cost equivalents available
- Step 5 — I/O count: Do you need more than 8 DI / 4 relay outputs? → Yes: consider PQMII-T20-C-B or EPM 7000
Still unsure? Send your existing nameplate photo or panel drawing to support@konmask.com for a free selection review.
Quality Assurance & Sourcing
- Source: Authorized distributors, OEM surplus, and verified secondary-market channels
- Inspection: Visual, functional power-on, and communication port verification before shipment
- Packaging: Anti-static bag + foam-lined carton; original packaging preserved where available
- Documentation: GE instruction manual (GEK-106310) and wiring diagram included on request
- Warranty: 12-month Konmask warranty covering manufacturing defects
- Traceability: Serial number and batch records retained for 5 years
How to Order
- Confirm part number: PQMII-T20-C-A
- Specify quantity and required delivery timeline
- Request a quote: support@konmask.com or WhatsApp +0086 19859288691
- Receive proforma invoice with lead time and shipping options (DHL / FedEx / sea freight)
- Confirm payment — T/T, PayPal, or trade assurance accepted
- Shipment with tracking number and inspection report
Replacement & Compatibility FAQ
Q: Can the PQMII-T20-C-A replace an older PQMII-T20-C without the “-A” suffix?
A: In most cases yes — the “-A” denotes a hardware revision with improved EMC performance. Wiring and firmware are backward-compatible.
Q: Is the Schneider PM5560 a drop-in replacement?
A: Functionally similar, but the PM5560 uses Modbus TCP/IP natively and has a different panel cutout. Adapter plates and protocol converters are required.
Q: Can I use a 5 A CT with this unit?
A: Yes. The PQMII-T20-C-A accepts both 1 A and 5 A CT secondaries — configurable via the front panel or EnerVista software.
Q: Do you supply the EnerVista configuration software?
A: EnerVista PQMII Setup is freely available from GE Grid Solutions. We can provide the download link and assist with initial configuration.
Q: What is the lead time for a new unit?
A: Stock units ship within 3–5 business days. Non-stock orders typically require 4–8 weeks. Contact us for current availability.
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Contact: support@konmask.com | +0086 19859288691
