ERC 211

Categories:
Stand Alone Controllers Universal Controller

Description

The ERC 211, part of Danfoss’s ERC 21X series, is a compact electronic controller designed for small-scale refrigeration or heating applications—for example, glass‑door cabinets or reach‑in coolers. It integrates temperature and defrost control in one module and includes a user-friendly interface with four buttons and a clear display. It has pre‑loaded application profiles to simplify setup for common use cases.
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Specifications

Functionality & Interfaces

  • Outputs:

    • Single high‑capacity relay (DO1) for compressor/valve control or simple heating element (16 A at 230 VAC, 10 FLA/60 LRA; 16 FLA/72 LRA at 115 VAC)

  • Inputs:

    • One analogue temperature sensor input (Sair)

    • One flexible input, either analogue or digital (e.g. condenser sensor or door alarm, configurable via software)

User Interface

  • Four push-buttons and a red-display panel

  • Easy menu navigation with preconfigured application profiles for refrigerating or heating environments

Applications & Pre‑configured Modes

  • Configurable apps:

    • Cooling with timed or sensor-terminated defrost, medium temperature (2 – 6 °C)

    • Heating thermostat (20 – 60 °C)

    • And other presets for typical commercial refrigeration setups

Protection & Safety Features

  • Compressor protection via anti‑cycle timers

  • Voltage protection and zero‑cross relay switching to extend relay life and reduce electrical stress

  • Thermal and high‑pressure condensing protection logic embedded in firmware

Sensors & Compatibility

  • Supports NTC (5 K / 10 K), PTC, or Pt1000 sensor types—must use the same type for all inputs

Physical & Electrical Specifications

  • Supply voltage: 197–250 VAC (50/60 Hz) for 230 V models

  • Weight/Size: ~0.15–0.24 kg; compact DIN-module or clip mounting (footprint approx. 83×66×48 mm)

Approvals & Standards

  • UL 60730, EN 60730, ENEC, CE LVD & EMC, EAC, NSF, cURus certified

  • Complies with HACCP temperature monitoring (EN 13485 Class I) when paired with recommended sensors such as AKS 12

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