Danfoss vlt aqua Instruction

4.10.3 Motor Thermal Protection
The electronic thermal relay in the adjustable frequency drive has received UL-approval for single motor protection, when par. 1-90 Motor Thermal
Protection
is set for ETR Trip and par. 1-24 Motor Current is set to the rated motor current (see motor nameplate).
For thermal motor protection, it is also possible to use the MCB 112 PTC thermistor card option. This card provides an ATEX certificate to protect motors
in explosion hazard areas, Zone 1/21 and Zone 2/22. Please refer to the
Design Guide for further information.
4 How to Install
VLT AQUA Low Harmonic Drive Instruction
Manual
4-64 MG.20.T1.22 - VLT
®
is a registered Danfoss trademark
4

Danfoss vlt aqua Specifications

General

Supply Voltage	200-240V, 380-500V, 525-600V
Enclosure	IP20
Features	Energy optimization
Approvals	CE, UL, cUL
Input Voltage Range	200-240V, 380-500V, 525-600V
Output Voltage Range	0 to supply voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Short circuit, Ground fault
Communication Interfaces	PROFIBUS
Cooling Method	Air-cooled