Phoenix ECM-UC Series Industrial AC Current Monitoring Modules Complete Selection Guide

I. Series Overview: Industrial-Grade AC Current Detection & Control Modules

The Phoenix ECM-UC series is a dedicated portfolio of AC current monitoring modules designed for real-time current detection, overload protection, and threshold control in industrial AC power circuits, control cabinets, and automation systems. This series covers two core current ranges (10A/100A) and two functional variants:

1. Basic Monitoring Version (UI suffix): Realizes accurate AC current measurement and data feedback, suitable for simple current status monitoring scenarios.
2. Monitoring & Control Version (UI-REL suffix): Integrates current detection and relay output functions; triggers relay action when the current exceeds the set threshold, supporting overload protection and automatic control.

All models feature DIN rail mounting compatibility, wide temperature tolerance (-40°C to +85°C), high measurement accuracy, and EMC anti-interference performance. They seamlessly integrate with Phoenix PLC modules, terminal blocks, and control systems, ensuring stable current monitoring and control in harsh industrial environments.

Core Advantages

1. Dual Current Range Coverage: Supports 10A and 100A AC current monitoring, adapting to low-power control circuits and medium-power load circuits respectively.
2. Dual Functional Configuration: Basic version for status monitoring, relay version for active control, meeting diverse system requirements.
3. High Measurement Accuracy: Adopts precision current sampling technology, with measurement error ≤±1% of full scale, ensuring reliable current data acquisition.
4. Plug-and-Play Installation: Standard NS 35/7.5 DIN rail mounting, no complex wiring required, reducing on-site installation time.

II. Nomenclature Decoding: Model Structure & Key Component Interpretation

The ECM-UC series adopts a concise and standardized naming convention, with each segment clearly indicating the product's core attributes. The model format is as follows:

ECM - UC - [Rated Current Range] - [Function Suffix] - [Optional Relay Output]

Example Decoding:

• ECM-UC-100A-UI-REL (1698172) = ECM-UC series, 100A AC current monitoring, with precision current detection and relay output functions, for medium-power load overload protection.
• ECM-UC-10A-UI (1136504) = ECM-UC series, 10A AC current monitoring, basic precision detection version, for low-power control circuit current status monitoring.

III. Complete Product Catalog: Detailed Parameter Table

Strictly aligned with your part number list, the series is categorized by current range and functional variant for clear differentiation, with core parameters, key features and application scenarios provided for engineering and procurement reference.

IV. Core Technical Performance Indicators

V. 2-Step Quick Selection Technique

Follow this simple logic to quickly select the optimal model for your application, avoiding range mismatch and functional non-compliance:

1. Confirm the AC Current Range of the Monitored Circuit
   • For low-power AC circuits (e.g., sensor control circuits, small actuator power supplies, current ≤10A) → Select 10A series models (1698164/1136504)
   • For medium-power AC loads (e.g., small motors, heating elements, current ≤100A) → Select 100A series models (1698172/1136513)
2. Determine Whether Relay Output Control is Required
   • Need active overload protection (trigger relay to disconnect load when current exceeds threshold) → Select UI-REL suffix models (1698164/1698172)
   • Only need current status monitoring & data feedback (no control action required) → Select UI suffix basic models (1136504/1136513)

VI. Selection Pitfall Avoidance Guide (Critical for Monitoring Accuracy & System Safety)

Avoid the 3 most common selection errors of the ECM-UC series to ensure accurate current monitoring and reliable system operation:

1. Current Range Mismatch: Using 10A models to monitor 50A AC loads → Exceeding the full-scale range will cause measurement data distortion and even permanent damage to the module; strictly match the model's current range with the actual circuit current.
2. Functional Suffix Misuse: Selecting UI basic models for overload protection scenarios → Without relay output function, the module cannot trigger active control actions; choose UI-REL suffix models for protection and control needs.
3. Installation Environment Error: Installing IP20 modules outdoors or in dusty/wet environments → The module is designed for indoor control cabinet use; use a waterproof enclosure if it needs to be installed in harsh field environments.

VII. Conclusion: Core Monitoring Components for Industrial AC Circuits

The Phoenix ECM-UC series provides a targeted AC current monitoring solution for industrial systems, with dual current ranges and dual functional configurations to meet the needs of low/medium-power AC circuit monitoring and protection. The UI-REL suffix models realize active overload protection, while the UI suffix models provide reliable current data feedback, effectively improving the safety and intelligence of industrial automation systems.