Rockwell Automation AK DBU - Dynamic Braking Unit 600/690 VAC User Manual
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Specifications
Approvals and Standards Compliance
The DBU is designed to meet the following specifications:
NFPA 70
- US National Electrical Code
NEMA ICS 3.1 - Safety standards for Construction and Guide for Selection,
Installation and Operation of Adjustable Speed Drive Systems.
IEC 146
- International Electrical Code.
UL and cUL Listed to UL508C
and CAN/CSA-C2.2 No. 14-M91
(600V AC only)
Marked for all applicable European
Directives
EMC Directive (89/336/EEC)
Emissions: EN 61800-3 Adjustable
Speed electrical power drive
systems Part 3
Immunity: EN 61800-3 Second
Environment, Category C3
Low Voltage Directive (73/23/EEC)
EN 50178 Electronic Equipment for use
in Power Installations
Environmental Specifications
Altitude:
1000 m (3300 ft.) max. without derating.
Above 1000 m the derating for the
nominal current is 1% per 100 m
(330 ft.).
Degree of protection
Open / IP00
Ambient Operating Temperature
without derating:
0 to 40°C (32 to 104°F)
For temperatures higher than 40°C up to
max 55°C (131°F), the max. peak
braking current must be derated by 1.5%
per °C (0.8% per °F)
Storage Temperature:
–25 to 55°C (–25 to 131°F)
Transportation Temperature:
–25 to 70°C (–25 to 158°F)
(70°C max 24 hours)
Relative Humidity:
5 to 95% non-condensing
Shock:
15G peak for 11ms duration (
±1.0 ms)
Vibration:
0.152 mm (0.006 in.) displacement,
1G peak
Specifications
C