Instruction Manual IM01005019E - Rev.3
Effective April 2010
Eaton Corporation www.eaton.com 5
Eaton SPD Series
Surge Protective Device for Integrated Units
7. Connect the System Ground wire (green) to the SPD’s
Surge Ground connection using a ring terminal suitable
for use with a #10 fastener and a #10-32 x 3/8" fastener
(customer supplied). Tighten the Surge Ground connection
to 4.1 Nm (36 in-lbs). If the system uses an isolated ground,
connect the isolated ground wire to Surge Ground. There
are two Surge Ground connection points provided on the
SPD. Connect only one of them. See Figure11.
8. If equipped, connect the System Neutral wire (grey or
white) to the SPD. Connect the System Neutral wire to the
SPD’s Neutral connection using a ring terminal suitable for
use with a #10 fastener and a #10-32 x 3/8" fastener (cus-
tomer supplied). Tighten the Neutral connection to 4.1 Nm
(36 in-lbs). There are two Neutral connection points provided
on the SPD. Connect only one of them. See Figure 12.
9. The SPD (Standard and Standard with Surge Counter mod-
els) also has an available connection for remote monitoring
of the Form C relay contacts. See Figure13. This is a green
connector located on the side of the SPD. To make the con-
nection, remove the green connector and install the remote
monitor leads (connector supports 12-24AWG wire). Fasten
the remote monitoring wires to the N.O., N.C and COM con-
nection points per the label on the front of the SPD. Contacts
are rated: 150 Vac or 125 Vdc at 1A. Follow all national, state
and local electrical codes. With wiring complete, plug the
green connector into the SPD.
10. Install the dead-front panel to complete the installation.
2.3.2 Connected Through a Circuit Breaker Applications
1. Verify that the SPD you are about to install is rated for
the application voltage and system. See Table 5 in Section 6,
"Ordering Gidelines".
2. Follow all national, state and local electrical codes when
connecting the SPD.
3. Mount the SPD to the support brackets (customer sup-
plied) using #10 x 2-3/4" fasteners and tighten to 4.1 Nm
(36 in-lbs). For 50-200kA models, see Figure 4 for mount-
ing dimensions. For 250-400kA models, see Figure 5 for
mounting dimensions. Note: Mount the SPD as close as
possible to the circuit breaker.
4. Determine the wire length required to connect to the
breaker and cut Phase wires to the appropriate length.
(To maximize SPD performance, wire length should be
as short as possible). Note: For wire lengths longer than
4", Phase wires should be twisted once for each 4" of
wire length to maximize SPD performance.
5. Connect Phase wire to circuit breaker. See Figure 14, and
the wiring diagrams shown in Figures 6, 7, 8 and 9.
Figure 10. Wiring - High Leg Delta Units
Figure 11. Ground Connection
Figure 12. Neutral Connection
Figure 13. Form C Connection
Figure 14. Phase Connections
ote:N Please consult the factory for 240 delta high leg (4W+G) applica-
tions with high leg on the 'C' Phase.
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