Cabling the Switch
Important: A disconnect device must be provided as part of the installation .
Un dispositif de sectionnement doit être fourni dans le cadre de l'installation.
Important: Ensure power is removed from DC circuits before performing any installation
actions. Locate the disconnect device, circuit breakers or fuses on DC power lines servicing the
circuits. Turn off the power line circuits or remove the fuses.
Pouvoir assurer qu'il est retiré de circuits DC avant d'effectuer des actions d'installation .
Localiser les disjoncteurs ou des fusibles sur les lignes de courant continu desservant les
circuits. Coupez les circuits de lignes d'alimentation ou retirer les fusibles.
Important: Wire size must comply with local and national requirements and electrical codes.
Use only copper wire.
Le calibre du fil doit être conforme aux exigences locales et nationales et les codes électriques.
Utiliser du fil de cuivre.
Important: Apply ground connection to the switch first during installation and remove last when
removing power.
Appliquer connexion à la terre à l'interrupteur premier lors de l'installation et de supprimer la
dernière alimentation lors du débranchement.
4.3.2.1
Wire and Lug Preparation
Before performing any installation actions, ensure power is removed from DC circuits by turning off the
power line servicing the circuits. Prepare the stranded wiring before you begin a DC power installation.
Note: Stranded copper wiring is required and should meet local and national installation
requirements. Wires and grounding lugs are not supplied.
1. Attach an ESD grounding strap.
2. Prepare the stranded copper wiring for the power supply to be used.
Table 4: Switch Specifications
provides wiring, lug, and tightening torque information for the power supplies
covered in this guide.
Table 6: Wiring, Lug, and Tightening Torques for DC PSUs
Wire Size
(1)
Tightening Torque
PSU
(AWG)
(mm
2
)
Lug Type
(2)
N•m
in.•lbs.
PWR-500-DC
14 or larger
2.0 or larger
ring or spade/
fork
1.0
9
PWR-511-DC
12 - 14
4.0 - 2.5
1.0
9
PWR-1900-DC
4 - 6
21.2 - 13.3
2.7
24
PWR-1011-DC
6 - 8
16.0 - 10.0
2.7
24
PWR-1511-DC
4 - 6
25.0 - 16.0
2.7
24
1. Unless otherwise noted, wire size applies to -48V, Battery return, and Protective earth wires.
2. Unless otherwise noted, twin #10 studs spaced for dual-hole lug with 5/8" hole spacing.
3. Strip the wires to the appropriate length for the lugs to be used.
4. Use agency-approved compression (pressure) lugs for wiring terminations.
5. Slip on heat-shrink tubing on the wire ends before assembling the lugs on to the wire.
6. Crimp the lugs with the proper tool, and ensure that the tubing extends over the barrel of the lugs
and the insulation on the wires (
).
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