User Manual
Publication 1000-UM001B-US-P - July 2000
1-2 Installation Instructions
Note: If the Class J fuses protecting the SLS box are smaller than that
specified, the equipment grounding conductor may be reduced to that as
show n in T ab le 25 0-95 of the NE C .
E. This SLS box has Hartin g connectors for four SLS switches with safe
l ight (Cat. N o. 10 00-NXSLS). If less than th at four are nee d ed for an
installation, jumper out the unneeded SLS switches in the male end of
the Harting connecto r. Refer to wiring diagram Y-155 798.
Example: If SLS #4 is not needed, remove the hood on the male
Harting SLS connector and install a jumper between pins #3 and #8 on
the inse rt an d install an oth er jum per bet ween pins #4 and #9 on th e
insert. This will jumper out the missing SLS switch #4. Re-install the
hood and clamp the male Harting connector back in the SLS #4
position.
F. If an installation req uires more than four S LS sw itches, an ex pansion
box( es) can be inst alled to in crease the total number of SL S swi tche s.
Refer to drawings Y-156773 and Y-157131.
G. The SLS enclosure must be bolted to the mounting plate of a n enclosure
i n the vertical position. Refer to dr awing YD -24475 for m ounting
dimensions.
H. The SLS box must be protected upstream from the isolation contactor
by a Class J time delay fuse. Maximum available fault current is 42 KA at
480V. In order to ensure IEC 947-4-1 Type 2 or better protection, fuses
are to be sized per NEC Article 430 part D, but shall not exceed the
following:
85 A contactor size = 100 A max .
30 A contactor size = 30 A max .
I. Power wire size and terminal torque
J. SLS switch inst allation
1. Mount in the vertical plane per drawing YD-24492.
2. Use conduit and hub or strain relief cord grip.
3. Connect SLS cable to terminal blocks that correspond to the pin
numbers on the Harting connectors per drawing Y-156328.
Table 1.A
SLS Ratin g Cat. No. Power Wire Size Terminal Torque
30 A with Pilz relay 1000-NXSL SV30 #14…#6 AWG
(2.5…16 mm
2
)
31 lb-in. (3.5 Nm)
+0%…5%
85 A with Pilz relay 1000-NXSL SV85 #14…#2 AWG
(2.5…50 mm
2
)
52 lb-in. (6 Nm)
+0%…5%