User Manual

2.1.2 Fuse Replacement
This power supply does not require a fuse that is user replaceable. There is an internal fuse, in
which if blown, may indicate a malfunction in the unit. In this event, contact B&K Precision.
Any disassembling of the case or changing the fuse not performed by an authorized service
technician will void the warranty of the instrument.
2.2 Rackmount Installation
The MR series power supplies are designed to fit in a space of two rack units (2U) and can be
mounted in a standard 19-inch rack panel or cabinet. Rack mount brackets must be assembled
before mounting the unit in a rack. Refer to the following figure to assemble the rack mount brackets.
Figure 2.3 – Rack Mount Bracket Assembly
2.3 Output Connections
The main DC output terminal is a screw type terminal block located in the rear panel.
Due to the high current rating of the power supply, proper wire sizes are necessary for safe
connectivity and to prevent wires from overheating. Refer to the below table as a reference for proper
wire sizes according to the amount of current used for operation:
AWG
6
8
10
12
14
16
18
20
22
Imax(A)
75
55
40
25
20
13
10
7
5
mΩ/meter
1.3
2.1
3.3
5.2
8.3
13.2
21
33.5
52.8