14 Chapter 1 Overview
ECM3 Series Outdoor Power System User Manual
1.2.5 Heating Unit (Optional)
The power system can be configured with a heating unit; its appearance is shown in Figure 1-21.
Figure 1-21 Appearance of heating unit
The heating unit consists of the Positive Temperature Coefficient (PTC) heater, fan, temperature relay, fuse and
installation cover. It uses a built-in fan to release the heat produced by the heater to the cabinet, while the heater
starts or stops automatically according to the cabinet temperature.
1.3 Technical Parameters
The technical parameters of the power system are listed in Table 1-17.
Table 1-17 Technical parameters of the power system
Parameter
Specifications
Environment
parameter
Temperature
Operating temperature
Without heating:-10°C ~ +45°C
With heating: -40°C ~ +45°C
Storage temperature
-40°C ~ +70°C
Relative
humidity
Operating relative
humidity
5%RH ~ 95%RH (40°C ± 2°C)
Storage relative
humidity
≤ 95%RH (40°C no condensation)
Altitude
≤ 2000m (derating is necessary above 2,000m; The maximum
working temperature decreases 1°C when the altitude increases
every 200m)
Solar radiation
1120W/m
2
Application environment
Over-voltage level: II; pollution level: 2
Noise
≤ 60dB (at a distance of 1.5m)
Protection level
IP45
Mechanical
parameter
Dimensions
(H × W × D)
Single
cabinet
ECM3-18
1800mm × 800mm × 800mm
1800mm × 650mm × 650mm
ECM3-14
1400mm × 800mm × 800mm
1400mm × 650mm × 650mm
Mechanical
parameter
Dimensions
(H × W × D)
Battery
compartment
ECM3-18
Independent battery compart:
Four layers in total: 355mm × 780mm × 580mm/layer (1800mm ×
800mm × 800mm);
355mm × 630mm × 560mm/layer (1800mm × 650mm × 650mm)
Battery compartment (equ battery):
Two layers in total: 330mm × 780mm × 580mm/layer (1800mm ×
800mm × 800mm)
