ELECTRICAL INSTALLATION, WIRING AND TROUBLESHOOTING
Nederman Customer Service & Technical Support techsupport.us@nedermen.com
+1 (336) 821-0800
3
Section 1.0 – Preface
Nederman S
‐
Filters utilize high
‐
efficiency induction motors that have a high startup current, known as “Inrush
Current”, that lasts for a brief period, usually less
‐
than 10
‐
seconds. When the motor first starts, it will
experience up to 8x the FLA of the motor current. This will decrease rapidly until the motor reaches steady
state. If the motor does not turn over, please see Section 4.0 Troubleshooting.
There are specific electrical codes and standards outlined within this manual that need to be employed when
making the electrical connections.
Failure to adhere to the procedures outlined in this document WILL VOID the Nederman product warranty.
Section 2.0 – Circuit Sizing
Refer to Table 1 and 2,
1 and 3
‐
Phase S
‐
Filter Motor Circuit Sizing Tables
, to appropriately size the branch circuit
conductors and circuit breaker size. The data in this table is based on the 2020 NEC and is to be used as
recommendations only
. Final discretion is the responsibility of the Licensed Electrician, local codes,
regulations, and the AHJ.
Due to the inrush current, the fusing/breaker must be sized larger to protect the wiring in the event of a short
‐
circuit. The motor-overhead, not the breaker, provides the motor protection and should be set as close to the
FLA (Full
‐
Load Amperage) of the motor as possible to maximize motor protection.
The minimum conductor size listed in the table is calculated based on 75°C wire. If using a different type of
wire, or the dust collector is located a significant distance from the main panel, the wire size must be adjusted
accordingly.
Note: AWG #12 is the minimum acceptable wire size
TABLE 1 - 1 Phase S-Filter Motor Circuit Sizing Table
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Service Factor 1.0
Motor FLA
1
Conductor Size
2,7
Inverse Time
Breaker Size
3
Time
‐
Delay Fuse
4
Non Time
‐
Delay
5
O/L Setting
6
S
‐
500
208V
22.8
A
8
AWG
80
A
60
A
100
A
26
A
230V
20.2
A
8
AWG
70
A
50
A
90
A
23
A
S
‐
750
208V
35
A
6
AWG
110
A
80
A
150
A
40
A
230V
30
A
8
AWG
100
A
70
A
125
A
35
A
