KEYPLUS MT61GP Smart Metering MCB

Power Distribution Meets Digital Intelligence.

All-in-One Smart Metering Circuit Breaker (MT61GP)

The KEYPLUS MT61GP is an all-in-one DIN-rail smart circuit breaker engineered to transform conventional electrical panels into autonomous, connected AIoT nodes. Seamlessly consolidating Class 1.0 bidirectional energy metering, algorithmic circuit protection, remote bus control, and intelligent auto-reclosing into a single ultra-compact footprint, it eliminates external CTs and intermediate wiring while reducing cabinet footprint by over 50%.

Transform Your Electrical Panels from Static Iron to Autonomous AIoT Nodes

• Tired of Crammed Panels, External CTs, and Wire Spaghetti? Traditional monitoring demands 3 to 4 independent devices wired together. The MT61GP consolidates metering, CT sensing, motorized actuation, and MCB protection into one modular unit—slashing installation space by 50% and eliminating wiring mistakes entirely.
• Stranded by Nuisance Tripping in Remote or Unmanned Sites? Transient grid fluctuations shouldn't force emergency on-site service trips. MT61GP's intelligent algorithm distinguishes transient surges from genuine hard faults, automatically reclosing the circuit to maintain mission-critical uptime while locking safely during permanent hazards.

All-in-One Direct Integration (Form Factor & Cost Savings)

• Feature: Unified DIN-rail footprint integrating the breaker, internal solid-state CTs, motorized actuator, and graphic LCD display.
• Advantage: Eliminates secondary CT ratio configuration errors and reduces multi-hardware procurement costs.
• Benefit: Reduces distribution board assembly labor by over 50%, speeding up project commissioning for telecommunications and commercial towers.

Algorithm-Driven Digital Protection (Safety & Adaptability)

• Feature: MCU-driven overload thermal accumulation modeling, programmable short-circuit delays, and redefinable rated current thresholds.
• Advantage: Provides fine-grained customizable tripping curves tailored precisely to downstream motor or IT loads without swapping physical breakers.
• Benefit: Prevents unnecessary downtime while offering superior protection against equipment burnouts and electrical fires.

Audit-Grade Bidirectional Metering & Field Connectivity (Data & Control)

• Feature: True bidirectional active (Class 1.0) and reactive power tracking, 4-tariff scheduling, 20-event fault memory, and RS485 Modbus/MQTT connectivity.
• Advantage: Distinguishes rooftop solar/storage backfeeding from grid import, stores exact fault causes with timestamps, and enables remote trip/close for billing systems.
• Benefit: Automates tenant sub-metering, facilitates smart prepayment control, and enables rapid root-cause diagnosis without guesswork.

Seamless Synergy with KEYPLUS AIoT Smart Space Platform

Fully compatible with the KEYPLUS G30 Multi-Protocol IoT Gateway and iEMS Energy Management Platform. From telecom tower base stations to student housing and commercial retail, the MT61GP provides the granular telemetry, remote tariff control, and fail-safe automation required for modern sustainable buildings.

Model Number	MT61GP
Poles / System	2P (Single Phase) / 4P (Three-Phase Four-Wire)
Rated Current Range	Up to 80A (Redefinable rated current via software/MCU)
Metering Accuracy	Class 1.0 (Active Energy), Class 0.5 (Voltage & Current)
Measurement Parameters	U, I, P, Q, S, Power Factor (PF), Hz, Peak Demand, Phase Angles
Energy Flow Tracking	Bi-directional Active & Reactive Energy (Import/Export for Solar/Storage)
Multi-Tariff System	Up to 4 Tariffs (Peak, Flat, Valley scheduling)
Breaking Capacity (Icn)	6kA (IEC 60898-1 / IEC 60947-2)
Protection Mechanism	Over/Under-voltage, Overcurrent/Overload, Short Circuit, Phase Loss, Surge/Imbalance
Digital Simulation Curve	Overload thermal accumulation, programmable short-circuit delay, customizable tripping curves via MCU algorithms
Auto-Reclosing Function	Intelligent auto-recovery (distinguishes transient nuisance trips vs permanent faults); up to 20 programmable sequences
Mechanical Lockout (LOTO)	Physical "Safe Operation Lock" pull-tab for maintenance safety
Fault Logging	Stores the last 20 fault events with timestamps and cause analysis
Human-Machine Interface	Graphic LCD screen + 3 operation buttons + Status LEDs
Communication Ports	Standard RS485 port (Modbus-RTU); Optional WiFi, 4G, MQTT integration
Auxiliary Control	Remote opening/closing, scheduled switching, remote trip/close for prepaid energy management
Installation & Housing	Standard 35mm DIN-Rail mounting; V0 flame-retardant housing (Zero external CT required)