Siemens S3VA52T User manual

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Distribution Switchboard Section /
Power Panel Branch Mounting Kit
S3VA52T / S3VA52TD
for Type 3VA52 / 61 / 62 Breaker
Installation
Instructions
11-A-1168-01 Rev. 02
-4-
These instructions do not purport to cover all details or variations in equipment, or to provide for every possible contingency
to be met in connection with installation, operation or maintenance. Should further information be desired or should particular
problems arise, which are not covered sufficiently for the purchaser’s purposes, the matter should be referred to the local
Siemens sales office. The contents of this Instruction manual shall not become part of or modify any prior or existing
agreement, commitment or relationship. The sales contract contains the entire obligation of Siemens. The warranty
contained in the contract between the parties is the sole warranty of Siemens. Any statements contained herein do not
create new warranties or modify the existing warranty.
Trademarks - Unless otherwise noted, all names identified by ® are registered trademarks of Siemens AG or Siemens
Industry, Inc. The remaining trademarks in this publication may be trademarks whose use by third parties for their own
purposes could violate the rights of the owner.
12a.
Orient the breaker such that the “ON”-side (with Bus
Extensions, part of Item 15) fits into the Top Barrier
(Item 4) and the “OFF”-side nestles between the
two fins on the Breaker Mounting Bracket (Item 5).
INSTALLING THE BREAKER:
12b. Fasten the breaker to the Breaker Mounting Bracket
(Item 5) with two #8-32 screws (part of Item 15).
(NOTE: Some breakers are packaged with a pair
of Breaker-Mounting Screws. If this occurs, dispose
of the pair that shipped with the breaker and use the
pair from this kit.)
12c. Align the Bus Extension (part of Item 15) holes with
the holes in the Straps (Items 1, 2 and 3) and fasten
with one 5/16”-18 screw (part of Item 15) per phase.
12d. If installing two breakers in the same unit space,
repeat the three steps above.
15
Figure 13
15
12e. Keeping components aligned, tighten all screws to
the torque values specified on the back of the
deadfront (or the table on Page 2).
INSTALLING THE NEUTRALS:
13a. If this kit is installed in a panelboard with a neutral,
install the Branch Neutral Lug Assembly (Item 13).
Locate on the Branch Neutral at either the top or
bottom of the Z-rails. Lug can be mounted on either
side of the Branch Neutral, depending on cable feed
location.
13b. If this kit is installed in a switchboard with a neutral,
install the Branch Neutral Lug Assembly (Item 14).
It can be mounted as shown or on any available
hole of the branch neutral, depending on cable feed
location.
13
Figure 14
13c. Keeping components aligned, tighten all screws to
the torque values specified on the back of the
deadfront (or the table on Page 2).
DEADFRONT PREPARATION:
14a. If a provision is in place, install the Provision Filler
Assembly (Item 16) in the appropriate Cover Plate
(Item 6) opening. Place a screw into each of the two
corner square holes and locate the filler plate onto
the front of the Cover Plate, with the label facing out.
Then, fasten two lock nuts onto the screws from the
rear of the Cover Plate.
10 Figure 16
6
11
16
7
14b. Position the Cover Plate (Item 6) over the five inch
unit space and fasten with four 1/4”-20 screws
(Item 7) onto the deadfront rails, one at each corner.
14c. Mark the I.D. cards (Item 11) as desired and place
onto the rear of Card Holder (Item 10), with the
marking facing out. Attach this subassembly to the
Cover Plate (Item 6) by aligning and pushing the
pins into the appropriate pair of holes in the Cover
Plate (Item 6).
FINAL PREPARATION:
15. Before energizing the equipment, ensure that
the deadfront, barriers and fillers are in place and
secure, and that all the covers are properly installed.
Hardware Key: (based on what is included in this kit)
Item numbers reference table on pg. 2
Item # 7 Item # 8
Item # 9 (reference instruction sheet 11-B-1009-01)
This instruction sheet can also be used as reference for
these two Panel Builder kits: KS3VA52T & KS3VA52TD
These two kits will ship with all the same components as kits
S3VA52T & S3VA52TD except for:
nut keepers & provision filler plate assemblies
Additionally, when installing a factory-installed provision,
nut keepers must be purchased with the breaker
NOTE: Provision Filler Assembly (Item 16) not a
component of kits KS3VA52T or KS3VA52TD. Skip 14a.
Figure 15 14
*
*
Nut keepers must be purchased with the breaker. Order options are:
for 3VA52 breakers: 3VA9233-0QA00 (kit of 3)
for 3VA61/62 breakers: 3VA9243-0QA00 (kit of 3)
or factory-installed on the breaker by using a “2” as the 12th
character in the breaker order: ( Ex.: 3VA61405HL320AA0 )
For factory-installed provisions, verify that the strap kit contains
bus extensions. (See Figure 12 on page 3 for reference.)
If bus extensions are not included, kit S3VA52PR is required,
one kit per breaker. Consult Siemens for more details.

Installation Instructions
11-A-1168-01 Rev. 02
-3--2-
The following instructions are for the installation of a Siemens 3VA branch breaker kit for 250A MAX 3VA52 (MFAS,
HFAS, CFAS), 150A MAX 3VA61 (MDAE, HDAE, CDAE, LDAE) or 250A MAX 3VA62 (MFAE, HFAE, CFAE, LFAE)
breakers in Distribution Switchboards or Type P4 (shallow) / or Type P5 (deep) Panelboards. The parts provided in this
kit are for connections to a 1-phase, 2 or 3-wire system (for the 3VA52 ONLY) or a 3-phase, 3 or 4-wire system. This
kit requires 5” of unit space. The deadfront will need a blank filler plate if this kit does not completely fill the unit space
of any removed branch module(s). For systems without neutrals, disregard the neutral connection.
The breaker is NOT included with this kit and must be purchased separately.
Be sure to choose the appropriate breaker for the system in use.
a. For P4 (Shallow) Panelboards:
The two pins on the bottom of the Top Barrier will
align and insert into bus holes in the A/C bus.
b.
For P5 (Deep) Panelboards or Switchboards:
Fasten the Top Barrier to the B-phase strap using
1/4”-20 x 1/2” screw (Item 8).
7c. Locate the Top Barrier (Item 4) into the prepared
unit space by centering it in the 5” unit space. Next:
8a. Position one A/C-phase Strap 1 (Item 2) into the unit
space, with the two-hole portion sitting on the A-phase
bus and the single-hole portion set into the A-phase
of the barrier, using the barrier as a fixture. Then
set one A/C-phase Strap 2 (Item 3) on top of Strap 1
(Item 2) aligning the pair of mounting holes on each.
Fasten this pair to the A-phase bus, using two screws
from the Strap-section Bus Hardware Kit (Item 9) of
appropriate length.
8b. Repeat Step 8a to attach a pair of A/C-phase straps
to the C-phase bus.
10a. Locate the Breaker Mounting Brackets (Item 5) on
the Base Rails, and secure them with two pairs of
1/4”-20 x 7/16” screws (Item 7).
2. Remove the (2) gutter covers and cover plates.
3. This kit requires 5” of empty unit space. To locate the
mounting position, measure from the top deadfront
support to the top of the empty unit space filler on the
deadfront. Transfer this dimension from the deadfront
support along the Z-rail and mark. This will be the unit
space as shown on Fig. 11. After marking the Z-rail,
remove the deadfront.
PANELBOARD PREPARATION:
4. If an existing branch module occupies this location,
remove all of its devices, components and parts.
SINGLE-PHASE (1Ø) SYSTEM PREPARATION:
4
Figure 7
4
8
Figure 8
3AØ BØ CØ
2
9
45
7
1
A/C-PHASE STRAP PREPARATION:
B REAKER MOUNTING BRACKET PREPARATION:
11a. Slide a Nut Keeper (part of Item 15) under each phase
of the breaker stabs on the “ON” side of the breaker.
They “click” into place when properly inserted.
BREAKER PREPARATION:
11b. Place Bus Extension (part of Item 15) on top of each
phase of the breaker stabs, with the smaller and
rounder hole towards the breaker.
11c. Assemble each Bus Extension to each Nut Keeper
with the 5/16”-18 x 3/4” Socket Head Cap Screw
(part of Item 15). (Do not tighten until after breaker
is assembled to the straps.)
SCREW
BUS
EXTENSION
NUT
KEEPER
8c. Keeping components aligned, tighten all screws to the
torque values specified on the back of the deadfront
(or the table on Page 2).
Figure 12
10b. Keeping components aligned, tighten all screws to the
torque values specified on the back of the deadfront
(or the table on Page 2).
(CONTINUES ON PAGE 4)
7a. Fasten the B-phase strap (Item 1) to the B-phase bus,
vertically centered in the 5” unit space, using a pair of
1/4”-20 screws from the Bus Hardware Kit (Item 9).
9a. If a breaker will not be immediately installed, all 3 phases
must get Provision Barriers (Item 17). Secure them with the
5/16” screw from the Provision Barrier Assembly (Item 17).
Figure 10
7b. Keeping components aligned, tighten all screws to the
torque values specified on the back of the deadfront
(or the table on Page 2).
6c. Fasten the pair of Top Barrier Supports (Item 12) to
the A/C-phase bus, 1.25” offset from 5“ unit space
centerline, using four 1/4”-20 screws from the Bus
Hardware Kit (Item 9).
UNIT
SPACE
OFFSET
TYP
AØ
CØ
9
12
Figure 4
6d. Each protruding Top Barrier Support bracket end
(Item 12) will fit into a pocket on the bottom of the
Top Barrier (Item 4).
6e.
Keeping components aligned, tighten all screws to the
torque values specified on the back of the deadfront
(or the table on this page).
THREE-PHASE (3Ø) SYSTEM PREPARATION:
7d. Keeping components aligned, tighten all screws to the
torque values specified on the back of the deadfront
(or the table on Page 2).
1. First, lock off power supplying this equipment.
DANGER
Hazardous voltage.
Will cause death or
serious injury.
Keep out.
Qualified personnel only.
Disconnect and lock off all
power before working on
this equipment.
Figure 1
COVER
PLATES
GUTTER
COVERS Figure 2
DEADFRONT
SUPPORTS
Z-RAIL
6f. Skip to Step 8a.
For P4 (Shallow) Panelboards:
ONLY allowable for 3VA52 breakers (MFAS, HFAS, CFAS)
6a. Assemble the Top Barrier (Item 4) to the A/C-phase
bus by lining up the two posts at the bottom of the
barrier to the bus holes shown below. (Or reference
Figure 11 on Page 3 for an overhead view.)
6b. Skip to Step 8a.
For P5 (Deep) Panelboards or Switchboards:
4
AØ CØ
Figure 3
5. Open the shipping box and check the contents:
(refer to bottom of page 1 for KS3VA52T or KS3VA52TD)
*
Deep or shallow components, based on kit ** Deep kits only
B-phase Strap *1
A/C-phase Strap 1 *
A/C-phase Strap 2 *
Top Barrier
Breaker Mounting Bracket *
5” Cover Plate
2
2
1
2
1
1
2
3
4
5
6
71/4”-20 x 7/16” SHWHSW
8
1
81/4”-20 x 1/2” SHWHSW **
ITEM QTY
DESCRIPTION
N/A
N/A
N/A
N/A
TORQUE
N/A
72 lb-in
N/A
9Strap-section Bus Hardware Kit
1
2
10
11
Card Holder
N/A
Circuit I.D. Card
2
72 lb-in
***
N/A
1Ø Top Barrier Mounting Bracket Kit ** 1
Panelboard Branch Neutral Lug Assy.
Breaker Provision Kit
Provision Filler Assembly
2
2
2
2
12
13
14
15
16
17
2
N/A
N/A
N/A
N/A
N/A
N/A
Switchboard Branch Neutral Lug Assy. **
Provision B-phase Barrier
*** 50 lb-in for Aluminum bus; 72 lb-in for Copper bus
“ON”
SIDE OF
BREAKER
1
Figure 6
AØ BØ CØ
9
SINGLE-PHASE - Start at Step 6a
THREE-PHASE - Start at Step 7a
OFFSET
TYP
4
12
POCKET
BRACKET
END
Figure 5
17
NOTE #2: Panels with factory-installed provisions
manufactured before April 2021 did NOT include bus
extensions. When adding a 3VA breaker, kit S3VA52PR
is required, one set per breaker, to complete the install.
9
Figure 9 32
NOTE #1: Nut keepers are NOT components of kits
KS3VA52T or KS3VA52TD.
TWIN-MOUNT,
3-PHASE SHOWN
NOTE #3: If breakers are ordered and received with
the nut keepers pre-installed on the “ON” (1,3,5) side,
skip to step 10b.
Figure 11
BREAKER PROVISION PREPARATION:
(refer to pg. 1 for more details about Notes 1 through 3)
(Breakers
ordered with
Nut Keepers
pre-installed
may require
Nut Keeper
removal on
the load end
prior to lug
installation)