moulded case chassis system selection guide
TRANSCRIPT
NMC & PowerpactMoulded Case Chassis System Selection Guide
A comprehensive system for quality and peace of mind.
Page 2
The Guiding System, the new way to create your
electrical installations
A comprehensive offer of products with consistent design
The Guiding System is first and foremost a Merlin Gerin product
offer covering all electrical distribution needs. However, what
makes all the difference is that these products have been designed
to operate together: mechanical and electrical compatibility,
interoperability, modularity and communication.
Thus the electrical installation is both optimised and more efficient:
better continuity of supply, enhanced safety for people and
equipment, guaranteed upgradeability, effective monitoring and control.
Tools to simplify design and implementation
With the Guiding System, you have a comprehensive range of tools
- the Guiding Tools - that will help you increase your product
knowledge and product utilisation. Of course this is in compliance
with current standards and procedures.
These tools are regularly updated and include technical booklets and
guides, design aid software, training courses, etc.
The Guiding System, combined
with the know how and creativity,
allows optimised, reliable, open-ended
and standard compliant installations
For a genuine partnership with you
Because each electrical installation is unique, there is no standard
solution. With the Guiding System, the variety of combinations
allows for genuine customisation solutions. You can create and
implement electrical installations to meet your creative
requirements and design knowledge.
You and Merlin Gerin’s Guiding System form a genuine partnership.
For more details on the Guiding System,
consult www.merlin-gerin.com
Page 3
NMC Chassis1250A/1600A/2000A
Functions and Characteristics
FunctionMerlin Gerin’s NMC chassis can be used to build flexible and adaptable main and secondary switchboards up to 2000A, for industrial and commercial sites.
The NMC chassis is specifically designed to accommodate Merlin Gerin devices, through its large choice of incomers (Switch Disconnectors, Moulded Case Circuit Breakers-MCCBs), and outgoing MCCBs (Compact NS range).
Technical Data• 3 Phase • from 14 to 44 modules• current rating up to 2000A• short circuit withstand: 63kA rms for 1s• optional IP2X protection
DescriptionThe NMC chassis range is adapted to a large variety of requirements.
Customised versions:You can create and implement an electrical distribution system to meet your specific requirements and design.
Choice of circuit breakers: Suitable for Compact NS Moulded Case Circuit Breakers, 1P, 2P and 3P up to 1250A.
Current rating:Available in three current ratings: 1250A, 1600A and 2000A.
Modular design:Available in 14, 18, 22, 28, 33 and 44 modules. Each module measures 35mm. The total number of modules determines the height of the chassis. The configuration of the chassis can be altered by easily removing or adding tee-offs.Number of modules required for each type of MCCB: NS100 to NS250: 3 modulesNS400 and NS630: 4 modulesNS630b to NS1250: 6 modules
Flexible chassis:The NMC chassis can be designed in top, bottom, dual or center feed. It also comes in a single-sided or double-sided layout.
Insulated system:The busbars are fully enclosed and have colour coded tee-offs for connection to the MCCBs.
Type Tested:Manufactured and tested in accordance with:TCA100267 - Withstand current: 63kA rms for 1s - Peak Withstand current: 139kA peakTCA100639 - 11.2kV impulse testTCA100382 - Degree of protection: IP2XInterruption tests:– NS250H at 63kA – test report No. 7015.B– NS630H at 63kA – test report No. 7015.BFor the interruption test, the NMC chassis was fitted inside an enclosure with escutcheon fitted. Test CB was mounted between two adjacent CB’s, and three CB’s were mounted opposite. All CB’s were line side fed. No terminal shields were fitted. When IP2X chassis brackets are used, we recommend you use a terminal shield and rear insulating screen on load side of CB. The tests were in accordance with clause 8.2.3 of Australian Standard AS3439.1.
Protection: Finger safe IP2X protection can be achieved by the addition of the following components (report TCA No.100382):• IP2X circuit breaker bracket and insulating screen• Short terminal shields on line side and long terminal shields on load side.
Order procedure:To order a NMC chassis, fill out the layout sheet on page 7 and fax it to Schneider Electric Customer Service Center or hand it in to a Schneider Electric Sales Engineer.
Page 4
NMC ChassisAccessories andSpecial Applications
AccessoriesNMC spreader links:
Spreaders reduce the pitch of the chassis connection terminals. Thus making
it possible to connect the NMC chassis directly to a NS630b to NS1600 circuit
breakers, INS630b to INS2500, or IN2500.
NMC rating Incoming
devices
Spreader
reference
QTY
required
1250 NS630b/1600
INS630b/1600
NMC12/16LINKS 2
1600 NS630b/1600
INS630b/1600
NMC12/16LINKS 3
2000 IN2500 NMC25INLINKS 1
INS2500 NMC25INSLINKS 1
IP2X brackets and terminal shields:
The NMC chassis can be assembled to comply with the requirements of AS/NZS
3439.1:2002 (Clause 8.2.7). The chassis must be equipped with IP2X support brackets
with insulating screens and the MCCBs must be equipped with terminal shields.
NS100/250 NS400/630 NS630b/1250
IP2X Chassis Brackets
NMC006 NMC043(SS)NMC008(DS)
NMC050
Insulating Screen (Supplied) (Supplied) (Supplied)
Terminal Line 29321 32562 33628
Shields Load 29323 32564 33628
SS = Single sidedDS = Double sided
Back shield:
The NMC Chassis can also be shielded from the back by using base cover
insulators. For more detail consult Schneider Electric.
Special ApplicationsNMC Chassis rated at 1000V
The 1000V rated NS400N can only be used on the single sided NMC chassis,
providing 1 module space is present between each 1000V circuit breaker.
TCA Report 100639 - 11.2kV impulse test.
Page 5
NMC ChassisDimensions, Volumes
Number of Modules Length(mm)
14 595
18 735
22 875
28 1085
33 1260
44 1645
SINGLE SIDED CHASSIS
DOUBLE SIDED CHASSIS
NS100 NS250
NS630
NS1250
NS100
NS100
NS250
NS250
NS630
NS400
NS1250
Page 6
NMC ChassisCross Section
DOUBLE SIDEDSINGLE SIDED
* Add 6.3mm for 2000 A versions (ie. 11 + 6.3 = 17.3 mm)
*
*
*
*
*
*
Page 7
NMC ChassisLayout Sheet
Notes:
1. Add the total quantity of modules to calculate the total size of the chassis.
2. For single-sided chassis, ensure that the load side (customer cable connection) of
ALL circuit breakers is clearly marked on the layout diagram.
3. If a NS630b/1250 is mounted at the top or bottom of the chassis, an extra
module is required at the extremity of the chassis for mounting the internal
busbars insulators.
4. 1 module is also required between 2 x NS630b/1250 mounted side by side.
5. 1000V MCCB’s can only be used on single sided chassis. 1 module space is
required between each 1000V breaker and IP2X support brackets must be used.
6. For NS630b/1250 on double sided chassis, identify if the load side of the breaker
is on the left or the right.
7. Include 33130NMC (modified 3p rear terminal shield) in BOM for all NS630b/1250
to be mounted on the NMC chassis.
S/O Number:
Customer:
Line:
Chassis Part number:
Date Ordered:
Date Requested:
14 595
18 735
22 875
28 1085
33 1260
44 1645
No. of
Modules
Dimensions
mm
Quantity:
Chassis Type
Standard IP2X 1000V (see note 5)
Number of Modules Required
Breaker Type Space
Required
Part No. No. of
Breakers per
tee-off
Qty
Required
NS100/160/250NHL 3 Modules NM250 2
NM250SS 1
NS400/630NHL 4 Modules NM630 2
NM630SS 1
NS630b/1250 NH (7) 6 Modules NM1250SS 1
Customer approved:
Date:
NMC12 1250A Double sided
NMC16 1600A Single sided
NMC20 2000A
CB outgoing cable connection (load) on
Top Feed Left
Bottom Feed Right
Centre Feed
Dual Feed
Number of Modules
14 28
18 33
22 44
(see note 6)
Page 8
Function
CNS-Powerpact chassis assemblies provide easy mounting of moulded case circuit
breakers into low voltage power distribution switchboards. The unique, innovative
design offers the benefit of a space saving assembly with a lower installation cost.
CNS-Powerpact chassis is ideal for industrial and commercial applications either as
a main or a sub-distribution panel.
Technical Data
• available with 630A or 800A 3pole busbars
• from 12 to 72 ways for double sided and 6 to 39 ways for single sided
• short circuit withstand: 40kA rms for 1s, 50kA rms for 0.1s
Description
The CNS-Powerpact chassis range is adapted to a large variety of requirements.
Choice of circuit breakers:
Suitable for Compact NS Moulded Case Circuit Breakers, 1P, 2P, 3P and 4P up to 250A.
Flexible chassis:
The CNS-Powerpact chassis can be designed in top, bottom, or dual feed. It also
comes in a single-sided or double-sided layout.
Customised versions:
You can create custom layouts to meet your specific requirements and design.
Current rating:
Available with 630A or 800A 3 pole busbars.
Insulated System:
The busbars and tee-offs are fully insulated and colour-coded.
Incoming devices:
The 630A CNS-Powerpact chassis can be connected directly to an Interpact
INS400 to INS630 switch disconnector or a Compact NS400 and NS630 MCCBs.
Type Tested:
Manufactured and tested in accordance with:
Withstand capacity:
- 40ka/1 sec cert. no. 64167
- 50kA/0.1 sec cert. no. 64297
Interruption tests:
- NS250H at 63kA - test report NO. 67049.1.B
For the interuption test, the Powerpact chassis was fitted inside an enclosure with
escutcheon fitted. The test CB was mounted between two adjacent CB’s, and three
CB’s were mounted opposite. All CB’s were line side fed. No terminal shields, phase
barriers or rear insulating screens were fitted.
The test was in accordance with clause 8.2.3 of the Australian Standard AS3439.1.
Accessories
CNS interconnection kit:
This kit is required to maintain the same escutcheon level for the incoming and
outgoing devices.
Incoming devices Part number
CNS interconnection kit INS400 to INS630 &
NS400 –NS630
CNS63CK
Catalogue number:
For standard chassis use the following guide to determine the CNS chassis part
number. For any custom design you can fill out the layout on page 11, then fax it
to Schneider Electric Customer service Center or hand it in to a Schneider Electric
Sales Engineer.
CNS-Powerpact Chassis630A/800A
Functions and Characteristics
Layout - PowerpactThe length of the chassis is determined by total
number of ways required.
* Only for single sided chassis. Omit for double sided.
Chassis Part Number
Rating
(A)
630
800
Name
CNS (630A)
NS (800A)
630 24 SS LH TF
No. of Ways
12
18
24
30
36
42
48
60
72
CNS
SS*: Single sided chassis
LH*: MCCBs mounted left
RH*: MCCBs mounted right
TF: Top Feed
BF: Bottom Feed
DFC: Dual Feed
Page 9
CNS-Powerpact Chassis 630ADimensions, Volumes
DURAVIN
Page 10
NS-Powerpact Chassis 800ADimensions, Volumes
DURAVIN
CHASSISPART NUMBER
NS80012
NS80018
NS80024
NS80030
NS80036
NS80042
NS80048
NS80060
NS80072
Page 11
CNS630 & NS800 Custom Powerpact
Layout Sheet
Each segment represents one pole of the circuit breaker.
On 4 pole breakers, the neutral pole is on the left hand side of the breaker. Make
sure a spare space is available on the chassis if 4P breakers are to be connected
to the chassis.
All breakers can be reverse fed.
S/O Number:
Customer:
Line:
Part number:
Date Ordered:
Date Requested:
6 12
12 24
18 36
24 44
30 60
36 72
Sin
gle
sid
ed
Nu
mb
er
of
po
les (
35
mm
ea
ch
)
Quantity:
For single sided (SS) chassis, the circuit breakers are to be
mounted on the:
Left hand side Right hand side
Customer approved:
Date:
Do
ub
le s
ide
d
Wh
ite
ph
ase
Blu
e p
ha
se
Ne
utr
al S
PA
CE
Re
d p
ha
se
Supply
2 Phase
3 Phase
3 Phase + neutral space
Type
Top feed
Bottom feed
Dual feed (Top and Bottom)
Configuration
Single sided
Double sided
Rating
630A - CNS630
800A - NS800
For more details on the Guiding System, www.merlin-gerin.com
Pap
ier Paper
Recyclable
As standards, specifications and designs change from time to time, please ask for
confirmation of the information given in this publication.
This document has been printed on ecological paper.
Design: Schneider Electric
Photos: Schneider Electric
Printed:
Schneider Electric Industries SAS
2 Solent Circuit, Norwest Business Park,
Baulkham Hills NSW 2153
Tel: (02) 9851 2800
Fax: (02) 9629 8555
Australia Wide
Tel: 1300 369 233
Fax: 1300 369 288
Email: h e l p @ a u . s c h n e i d e r - e l e c t r i c . c o m
www.schneider-electr ic.com.au