Electrical System (A Model Beds)
Chapter 3: Theory of Operation
Page 3 - 4 CareAssist® and CareAssist® ES Bed Service Manual (MAN330 REV 4)
Electrical System (A Model Beds)
The specifications of the bed are as follows:
Table 3-1. Specifications
Refer to the schematic diagram at the end of this section to obtain specific
information for the cabling.
The bed is operated by a power supply unit. This unit controls the electrical
functions of the bed: hilow, head section and knee section with automatic
contour, and foot section.
These functions are performed by motors using very low voltages.
Description Specification
Type CareAssist® Bed
Type of protection against electric shock
(according to IEC 60601-1)
Class I
Degree of protection against electric shock
(according to IEC 60601-1)
Type B
Protection against harmful ingress of water
(according to IEC 60529)
IPX4
Intermittent operation 10% 3 min/30 min
Voltage 120 V (+10%, -15%) AC
voltage and earth
Frequency 60 Hz
Maximum power load 4.2 A
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