Armstrong FUSED DISCONNECTS User manual

hazardous voltage warning
• This equipment must be installed and serviced only
by qualified electrical personnel
• Disconnect all power input to this equipment before
working on or inside the equipment
• Always use a properly rated voltage sensing device
to confirm power is OFF.
• Always maintain electrical clearances between con-
duit and live parts
Failure to follow these instructions may result in serious injury, or death.
1.0 fused disconnect for design
envelope pumps 1-10hp
This document contains specific information regarding the
safe installation, operating and maintenance of Armstrong
loose fused disconnects and should be read and understood
by installing, operating and maintenance personnel. The
equipment supplied has been designed and constructed to
be safe and without risk to health and safety when properly
installed, operated and maintained. The instructions following
must be strictly adhered to. If clarification is needed on
any point please contact your Armstrong Fluid Technology
representative, quoting the equipment serial number. The
product should be installed and used by professional personnel
with the appropriate equipment.
Disconnects are shipped within the pump package, as a
kit, including factory installed fuses, sized for the motor
design power.
2.0 fuse disconnect dimensions
30a disconnect
30-60a disconnect
30a 60a
File No: 100.8130
Date: january 31, 2019
Supersedes: 100.8130
Date: may 14, 2018
FUSED DISCONNECTS FOR USE WITH DESIGN
ENVELOPE PUMPS
|
UL RATED 30A & 60A
|
INSTALLATION AND OPERATING INSTRUCTIONS
131 mm (5.16 inch)
96 mm
(3.78inch)
144 mm (5.67 inch)
131 mm (5.16 inch)
knock-outs
2×ø25/ø32+ø16
on the top and bottom
and ø25 on the base
177 mm (6.97 inch)
190 mm (7.48 inch)
203 mm
(8 inch)
254
mm
(
10 inch)
273 mm
(10.75 inch)
203 mm
(8 inch)
152 mm
(6 inch)
1.0 fused disconnect for design envelope
pumps 1-10hp 1
2.0 fuse disconnect dimensions 1
3.0 mounting instructions 2
4.0 conduit/cables termination 2
5.0 wiring instruction 3
6.0 disconnect switch and fuse ratings 4
7.0 operation 5
8.0 padlocking of the fused disconnect 6
9.0 environmental limits 6

installation &
operating instructions
Fused
Disconnects
2
3.0 mounting instructions
Find a safe place and mount the disconnect where it conve-
niently fits, within clear line of sight and less than 50ft / 15m
from the pump. The product should be fixed using appropriate
screws; ensure you have the correct size for the box sizes. The
conduit / cable should be secured and protected against physi-
cal damage. Make sure the installation follows all local codes
and standards.
4.0 conduit/cables termination
a 30 amps fused disconnect
The 30 Amp disconnect is provided with 4×25mm-32mm
knockouts (KOs), select the one that will be easiest to con-
nect the cable/conduit. Find the point of attachment for this
KO. Press the edge of a screwdriver against the selected KO's
stamped edge, opposite the point of attachment, and press (or
rap sharply if needed) to push the KO away from the enclosure.
After correct size opening is achieved, insert the conduit/cable
connector into the opening from the outside box and secure it
using a connector locknut.
Note: Grounding bushing might be required, please refer to your local
code and standard.
b 60 amps fused disconnect
Cut holes in the enclosure at the desired location. The use of a
Greenlee Cutter is the preferred method, placing the punch of
the Greenlee Cutter on the inside of the enclosure and punch
through to the outside.
conduit connections
Metallic conduit – First secure the conduit connector onto
the conduit. Then secure conduit connector into the prepared
enclosure hole using the connector locknut. Then attach the
grounding bushing, having the proper size ground wire lug, over
the connection locknut.
caution
Bonding between the grounding bushing(s) and the
equipment grounding terminal must be included as
part of the installation procedure in accordance with
the local code.
Non-Metallic conduit – Secure conduit to the conduit connec-
tor either before or after the conduit connector is secured into
the prepared hole using connector locknut
Note: Grounding bushing is not required
PZ2/1×6
2,5 Nm MAX
35 mm2Cu
16-40 A 16mm21,8 Nm MAX
40-80 A 35mm22,5
Nm MAX
conduit connector
locknut
grounding
bushing
(when used)
hole size
enclosure
o-ring
outside of
enclosure

installation &
operating instructions
Fused
Disconnects
3
caution
To prevent enclosure damage and to attain the enclo-
sure requirements, the conduit should be aligned to
prevent unnecessary stress on the enclosure walls.
To obtain maximum corrosion protection, cover all
exposed metal and seal of the conduit openings where
the conductors enter the enclosure.
c grounding of the equipment 30a and
60a
Install the grounding conductor in accordance with the require-
ments of the local codes and standards. See illustrations below
when using either metallic or non-metallic conduit:
5.0 wiring instruction
Ensure the disconnect is in off position and there is no power
on the input terminals.
power feeds
Connect the incoming power feed to the top terminals of the
disconnect switch and connect bottom terminals to the incom-
ing from the pump motor.
30a
60a
terminal size and torque acceptability
(cu conductors only, 75°c)
30a: #14awg-#8awg @ 16 lb. in.
60a: #14awg-#4awg @ 30-35 lb. in.
connector locknut
metallic
conduit
non-metallic
conduit
equipment grounding
terminal
(when provided)
grounding bushing
grounding conductor
to design envelope pump
incoming feed
30a disconnect
fuse
type cc
to design envelope pump
incoming feed
60a disconnect
fuse
type j
2,5...6 mm2: 3Nm
10...25 mm2: 4Nm
14...10 awg: 30 lb.in
8...4 awg: 35 lb.in
12 mm
(0.47 in)
12

installation &
operating instructions
Fused
Disconnects
4
6.0 disconnect switch and fuse ratings
The disconnect switches and fuses are pre-sized for each pump. Please
see parts list or consult the factory for replacement.
Armstrong disconnect switch and fuse rating - 200-230v input power
for use with Design Envelope Permanent Magnet Motors
rated
power disconnect
switch rating
fuse
rating
fuse class
types
maximum driver
input current (a)
hp kw 200 vac 230 vac
10.75
30A
10A
cc fast-acting
j fast-acting
rk1 fast-acting
3.1 2.7
1.5 1.1 10A4.2 3.7
21.5 15A6.0 4.8
32.2 20A8.8 7.2
5 4 30A15.7 14.0
7.5 5.5 60A50Aj fast-acting
rk1 fast-acting
20.7 18.5
10 7.5 60A28.1 25.1
Armstrong disconnect switch and fuse rating - 380-480v input power
for use Design Envelope Permanent Magnet Motors
rated
power disconnect
switch rating
fuse
rating
fuse class
types
maximum driver
input current (a)
hp kw 380 vac 480 vac
10.75
30A
6A
cc fast-acting
j fast-acting
rk1 fast-acting
2.1 1.7
1.5 1.1 6A2.8 2.3
21.5 10A4.8 4.1
32.2 10A6.5 5.8
4 3 15A6.1 4.9
5 4 20A9.2 7.1
7.5 5.5 25A12.5 8.2
10 7.5 30A18.5 14.5
Armstrong disconnect switch and fuse rating - 575v-660v input power
for use Design Envelope Permanent Magnet Motors
rated
power disconnect
switch rating
fuse
rating
fuse class
types
maximum driver
input current (a)
hp kw 575 vac 660 vac
10.75
30A
5A
cc fast-acting
j fast-acting
rk1 fast-acting
1.6 1.3
1.5 1.1 6A2.2 1.8
21.5 8A2.0 1.6
32.2 10A3.4 2.8
5 4 20A5.5 4.9
7.5 5.5 25A7.2 6.0
10 7.5 30A9.8 9.4
All cabling and must comply with national and local regulations on cable
cross-sections and ambient temperature

installation &
operating instructions
Fused
Disconnects
5
Fuse handling
30a disconnect: (type cc fast acting)
60a disconnect: (type j fast acting)
7.0 operation
on/off
All switches and handles have clear on and off designations.
Identifying if the door is open or closed
door interlock
The handle and shaft provide a door interlock; the door cannot
be opened when the switch is in the on position.
j-type
remove
3,5 Nm
31 Ib.in
bs-type
mounting
circa
20 mm (¾ in)
12

installation &
operating instructions
Fused
Disconnects
6
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established 1934
8.0 padlocking of the fused
disconnect
The fused disconnects can be padlocked to achieve electrical
disconnection from the pump. Handles can be padlocked in the
off position with up to three padlocks. Use a padlock with a
shackle diameter not exceeding N"/ 6 mm.
30 amps disconnect 60 amps disconnect
9.0 environmental limits
Operation temperature range: 0°c to 50°c (32°f to 122°f)
(Do not expose to direct sunlight)
Operation humidity range: 10% - 85% non-condensing
Ambient air temperature for storage: -20°c to 70°c (-4°f to 158°f)
Package ip rating: nema 4x