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QUICK START GUIDE
Step 3 - Connect DC Input Cables
•
Wire - 1AWG minimum
•
Lugs 1/4" on 5/8" centers (not provided)
Caution: Ensure cables do not come in contact with sharp or rough surfaces that may damage insulation and
cause a short circuit.
Vin
150028529 Shelf
A1. Verify battery cable voltage and polarity.
A2. Connect to POS and NEG lug landings.
A3. Torque all lug nuts to 65 in-lb (7.3Nm) - 7/16" socket.
150036912 Shelf
Lug Bridging Buses are under lug nuts.
B1. Verify battery cable voltage and polarity.
Connect Negative feed cables With Redundant Feed option - see note below.
B2. Remove NEG Lug Bridging Bus.
B3. Connect to NEGA and NEGB lug landings (2 cables)
Without Redundant Feed option
B4. Connect to NEGA or NEGB lug landing (1 cable).
Connect Positive feed cables With Remote Output Reference option - see note below.
B5. Remove POS Lug Bridging Bus.
B6. Connect DC Input feed return to POSA lug landing.
B7. Connect Output Reference ground to POSB lug landing.
Without Remote Output Reference option
B8. Connect to NEGA or NEGB lug landing (1 cable).
Torque All Lug Nuts
B9. Torque all lug nuts to 65 in-lb (7.3Nm) - 7/16" socket.
Notes: Apply these options only when directed by the site engineering instructions. Redundant Feed requires that
each feed be capable of powering the entire shelf when the other feed is unpowered. Both feeds must be
protected as recommended in Step 5.
Remote Output Reference references the converter outputs to a point other than POSA (DC Input Return) When
used, the reference is usually connected to a ground point near the powered equipment.
Page 2
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POSB
NEGB
NEG Lug Bridging Bus
Positive
(DC Input Return)
Negative –48 V DC
(DC Input Return)
Bridging
POS Lug Bridging
NEGA
POSA
Protector
100A
70A
Lug
Bus
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