Cutler‑Hammer IQ DP‑4000 Power Monitoring & Protective Relay

Product Overview

The Cutler‑Hammer IQ DP‑4000 is a compact panel‑mounted microprocessor‑driven monitoring and protective unit for low‑voltage power distribution systemsManualsLib. It consolidates multiple separate meters, protective relays and data recorders into one single device, delivering comprehensive electrical measurement, power quality analysis, alarm logging and system protection functions for industrial power infrastructureManualsLib. It supports over 74 measured parameters, including energy consumption, peak demand and total harmonic distortion (%THD) for both voltage and current, widely used for retrofitting existing power monitoring systemsEaton.

Series

IQ DP‑4000 series includes multiple variants: IQDP4010, IQDP4020, IQDP4030, IQDP4110, IQDP4120, IQDP4130. Units can be fitted with optional PONI communication modules (IPONI, EPONI, EPONIF) and optional I/O expansion modules for additional protective functionsManualsLib.

Product Features

Consolidates multi‑metering, alarm protection and data recording in one panel‑mount unit, saving cabinet space
Measures %THD of voltage and current for power quality diagnostics
Captures min/max values, peak demand, total energy and reactive energy readings
Non‑volatile EEPROM memory retains setpoints and snapshot metering data upon alarm events without external power supplyManualsLib
Built‑in digital display and membrane push‑buttons for local reading, setpoint configuration and alarm review
Provides overvoltage, undervoltage, phase loss, phase reversal and phase unbalance protection (with optional I/O module)ManualsLib
Hot‑swap capable optional communication modules for remote monitoring and programming over PowerNet networkManualsLib
Backward‑compatible with IQ Data Plus II communication protocol for legacy system upgrade projects

Product Parameters

Item	Parameter
Mounting	Panel mount
System Type	3‑phase 3‑wire / 3‑phase 4‑wire
Frequency	50 Hz / 60 Hz selectable
Current Input	External CT with 5 A secondary
Voltage Input	Direct connect up to 600 V; PT required above 600 V
Memory	EEPROM non‑volatile storage for setpoints & alarm snapshots
Local Interface	Digital LED display, membrane push‑button operator panel
Optional Modules	PONI communication modules, I/O relay expansion module
Measured Parameters Count	More than 74 metered values

Product Specifications

Operating Environment: Designed for industrial control cabinet installation
Communication: PowerNet interface, expandable via optional PONI modules
Protection Functions: Over‑voltage, under‑voltage, phase loss, phase reversal, phase unbalance (I/O module required)
Data Recording: Min/max values, peak demand, energy kWh/kvarh/kVAh, THD logging
Alarm Function: Alarm snapshot data capture, LED alarm indication, alarm reset function

Functions

Multi‑parameter electrical metering: phase current, line‑to‑line voltage, line‑to‑neutral voltage, watts, vars, VA, power factor, frequency, demand, energy valuesManualsLib
Power quality monitoring: voltage & current total harmonic distortion (%THD) measurement
System protection: detect abnormal power conditions and trigger alarm or relay output
Historical data capture: record min‑max, peak demand and energy consumption for energy management
Alarm snapshot: freeze metering data when alarm occurs for post‑fault analysis
Local configuration: hardware setpoint switches, no special programming tool required for basic setup
Remote monitoring: optional communication module supports remote readout and configuration over network

Purpose

Replace multiple discrete meters, transducers and protective relays in power distribution cabinets; monitor power consumption, track peak demand, identify harmonic distortion issues, provide electrical fault alarming and protection for 3‑phase industrial power systems.