Manuals+

KeContact M20 Charging Management Controller

KEBA
Automation by innovation.

Version: 1.02

Product Overview

The KeContact M20 is a charging management controller designed for electric vehicle charging infrastructure. This document provides detailed technical specifications.

Design

Front View: A compact, grey, finned metal enclosure featuring various ports including USB, Ethernet, and serial connectors.

Rear View: Depicts the rear panel of the device.

Product Variants

Product Designation Article No. EAN Code
KC-M20-E0LE02-010 - mini - LTE 137694 9120050719330
KC-M20-E0LE02-020 - small - LTE 128767 9120050716193
KC-M20-E0LE02-040 - medium - LTE 122008 9120050714250
KC-M20-E0LE02-200 - large - LTE 124561 9120050714762

General Specifications

Maximum number of controllable charging stations: mini/small/medium/large: 10/20/40/200
Maximum number per zone: 15
Connection protocol: Modbus TCP
Backend system OCPP: Configurable (1.5/1.6)

Power Supply

Embedded Computer

Supply voltage: 9-36 V DC
Power: max. 30 W

Power Supply Unit

Supply voltage: 100-240 V AC (50/60 Hz)
Output voltage: 24 V DC
Output power: max. 60 W
Overvoltage category: Class II according to EN 60664
Protection class: II

Environmental Conditions

Usage: Indoor area
Access restrictions at installation site: Limited access (control cabinet)
Mounting (stationary): Embedded computer: On wall or DIN rail
Power supply unit: DIN rail only
Operating temperature: -20 °C to +55 °C
Storage temperature: -40 °C to +85 °C
Relative humidity: 5 to 95% non-condensing

Interfaces

Altitude: max. 3000 m above sea level

Ethernet Interface

Number: 1 (RJ45)
Data transfer rate: 10/100/1,000 Mbit/s
Isolation of protective circuit: No

USB Interface

Number: 4
Type: USB 3.0

Serial Interface *)

Number: 4
Type: RS-232/422/485

*) This interface is not currently approved for use.

Wireless Communication

Category: LTE Cat.4
LTE bands: LTE-FDD B1/B3/B5/B7/B8/B20/B28
LTE-TDD B38/B40/B41
GSM bands: 900/1800 MHz

SIM Card

Type: Nano (4FF)

LTE Antenna Interface

Number: 2
Type: SMA

LTE Antenna

Type: Dual LTE antenna
Cable: 2 m LL 100 with male SMA connector
Protection class: IP67

Certificates*

CE Declaration of Conformity: Yes

* Information on certificates can be downloaded from the KEBA website: www.keba.com/emobility-downloads

Dimensions and Weight

LTE Antenna

Width (W): 80 mm
Height (H): 14.7 mm
Depth (D): 74 mm
Mounting: Mounting with M10x1 screws

Fig. 1-1: Schematic view, dimensions in millimeters. A rectangular prism representing the LTE antenna, with dimensions W, H, and D indicated, and mounting holes shown.

Embedded Computer

Width (W): 188.5 mm
Height (H): 33 mm
Depth (D): 127.8 mm
Weight: 700 g

Fig. 1-2: Schematic view, dimensions in millimeters. A rectangular prism representing the embedded computer, with dimensions W, H, and D indicated, and mounting holes shown.

Power Supply Unit Dimensions

Width (W): 54.1 mm
Height (H): 90.9 mm
Depth (D): 55.6 mm
Weight: 200 g

Fig. 1-3: Schematic view, dimensions in millimeters. A rectangular prism representing the power supply unit, with dimensions W, H, and D indicated.

Country-Specific Features

Austria

TOR Compliance: Yes, if the TOR function is activated (in combination with P30 customer charging stations in the charging network).
TOR Function Support:
  • Undervoltage monitoring, frequency monitoring after power failure and standby period.
  • Gradual increase of charging current (ramp-up) to the set maximum value.

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