Wall DCHBW100-110S24 82.5~100.8 watts half-brick dc/dc power converters single output Datasheet

DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
Rev D
24V & 48V Input Models
110V Input Models
Terminal Block Models
(“T” suffix)
Terminal Block w/ EMC Filter
(“TF” suffix)
Terminal Block w/ EMC Filter
(“TF1” suffix)
Size: 2.40 x 2.28 x 0.50in
Size: 2.40 x 2.28 x 0.50in
Size: 3.35 x 2.40 x 1.27in
Size: 3.35 x 2.40 x 1.47in
Size: 3.35 x 2.40 x 1.53in
OPTIONS
FEATURES
•
•
•
•
•
•
Pin Length
Heatsinks
Thru-Hole Inserts
Negative Logic Remote On/Off
Terminal Block
Terminal Block with Aluminum
Base-plate and EMC Filter
• Terminal Block with Anodized
Aluminum Base-plate and EMC
Filter, Can be Connected to PE
•
•
•
•
•
•
•
•
•
•
•
APPLICATIONS
DESCRIPTION
Railway Systems
Wireless Networks
Telecom / Datacom
Industry Control Systems
Distributed Power
Architectures
• Semiconductor Equipment
• Military Applications
The DCHBW100 series of DC/DC power converters provides up to 100.8 Watts of output power in an
industry standard half-brick package and footprint. This series consists of single output models ranging from
3.3VDC to 48VDC with 4:1 ultra wide input voltage ranges. Some features include high efficiency up to
93%, adjustable output voltage, and remote on/off control. These converters also have short circuit, over
voltage, over current, and over temperature protection. The DCHBW100 series is RoHS II compliant and
has UL60950-1, EN60950-1, and IEC60950-1 safety approvals. Several different options are available for
this series including negative remote on/off control, terminal block, pin length, heatsinks, and thru-hole
inserts.
•
•
•
•
•
Railway Applications
Soft-Start
4:1 Ultra Wide Input Voltage Ranges
82.5~100.8 Watts Output Power
High Efficiency up to 93%
Under Voltage Lockout
No Minimum Load Requirements
Adjustable Output Voltage
Remote On/Off Control
Industry Standard Half-Brick Footprint
Single Outputs Ranging from 3.3VDC to 48VDC
• 2250VDC Basic Insulation for 24VIN & 48VIN
• 3000VAC Reinforced Insulation for 110VDC Nominal
Input Models
• Threaded Inserts and Thru-Hole Inserts Available
• Short Circuit, Over Voltage, Over Current, and Over
Temp. Protection
• Compliant to RoHS II & REACH
• CE Mark Meets 2006/95/EC, 2011/95/EC, and
2004/108/EC
• UL60950-1, EN60950-1, & IEC60950-1 Safety
Approvals
MODEL SELECTION TABLE
Model Number
DCHBW100-24S3.3
DCHBW100-24S05
DCHBW100-24S12
DCHBW100-24S15
DCHBW100-24S24
DCHBW100-24S28
DCHBW100-24S48
DCHBW100-48S3.3
DCHBW100-48S05
DCHBW100-48S12
DCHBW100-48S15
DCHBW100-48S24
DCHBW100-48S28
DCHBW100-48S48
DCHBW100-110S3.3
DCHBW100-110S05
DCHBW100-110S12
DCHBW100-110S15
DCHBW100-110S24
DCHBW100-110S28
DCHBW100-110S48
04/30/2014
Input Voltage
Range
24 VDC
(9 - 36 VDC)
24 VDC
(8.5 - 36 VDC)
48 VDC
(16.5 - 75 VDC)
110 VDC
(43 - 160 VDC)
Output
Voltage
3.3 VDC
5 VDC
12 VDC
15 VDC
24 VDC
28 VDC
48 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
24 VDC
28 VDC
48 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
24 VDC
28 VDC
48 VDC
Output Current
No Load
Ripple & Noise
Input Current
Min Load Max Load
0mA
25A
75mVp-p
20mA
0mA
20A
75mVp-p
25mA
0mA
8.4A
100mVp-p
25mA
0mA
6.7A
100mVp-p
25mA
0mA
4.2A
200mVp-p
25mA
0mA
3.6A
200mVp-p
25mA
0mA
2.1A
300mVp-p
35mA
0mA
25A
75mVp-p
15mA
0mA
20A
75mVp-p
15mA
0mA
8.4A
100mVp-p
20mA
0mA
6.7A
100mVp-p
20mA
0mA
4.2A
200mVp-p
20mA
0mA
3.6A
200mVp-p
20mA
0mA
2.1A
300mVp-p
25mA
0mA
25A
75mVp-p
10mA
0mA
20A
75mVp-p
10mA
0mA
8.4A
100mVp-p
10mA
0mA
6.7A
100mVp-p
10mA
0mA
4.2A
200mVp-p
10mA
0mA
3.6A
200mVp-p
10mA
0mA
2.1A
300mVp-p
10mA
Output
Power
Maximum
Capacitive Load
Efficiency
82.5W
100W
100.8W
100.5W
100.8W
100.8W
100.8W
82.5W
100W
100.8W
100.5W
100.8W
100.8W
100.8W
82.5W
100W
100.8W
100.5W
100.8W
100.8W
100.8W
75,700µF
40,000µF
7000µF
4460µF
1750µF
1280µF
430µF
75,700µF
40,000µF
7000µF
4460µF
1750µF
1280µF
430µF
75,700µF
40,000µF
7000µF
4460µF
1750µF
1280µF
430µF
91%
93%
90%
91%
90%
90%
90%
91%
93%
90%
91%
90%
92%
91%
87%
90%
90%
90%
90%
90%
91%
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 1 of 9
DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
Rev D
SPECIFICATIONS: DCHBW100 SERIES
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Typ
9
8.5
16.5
43
24
24
48
110
Max
Unit
INPUT SPECIFICATIONS
3.3Vout & 5Vout
Others
24VDC nominal input models
Operating Input Voltage Range
Start-Up Voltage
Shutdown Voltage
Input Surge Voltage (1sec, max.)
Input Current
Input Filter (See Note 1)
OUTPUT SPECIFICATIONS
Output Voltage
Voltage Accuracy
Line Regulation
Load Regulation
Voltage Adjustability (See Note 6)
Remote Sense (See Note 2)
Output Power
Output Current
Minimum Load
Maximum Capacitive Load
Ripple & Noise (See Note 7)
Transient Response Recovery Time
Start-Up Time
48VDC nominal input models
110VDC nominal input models
24VDC nominal input models
48VDC nominal input models
110VDC nominal input models
24VDC nominal input models
48VDC nominal input models
110VDC nominal input models
24VDC nominal input models
48VDC nominal input models
110VDC nominal input models
No Load
7.3
15.5
33.0
-1.0
-0.1
-0.1
-20
Low line to high line at full load
No load to full load
Maximum output deviation is inclusive of remote sense
% of nominal Vout
VDC
VDC
VDC
VDC
See Table
+1.0
+0.1
+0.1
+10
10
See Table
See Table
%
%
%
%
%
0
Minimum input and constant resistive load
With a 1µF/25V X7R MLCC and a 22µF/25V POS-CAP
With a 1µF/25V X7R MLCC and a 22µF/25V POS-CAP
With a 4.7µF/50V X7R MLCC
With a 2.2µF/100V X7R MLCC
25% load step change
3.3Vout & 5Vout
12Vout & 15Vout
24Vout & 28Vout
48Vout
Constant resistive load
Power Up
Remote On/Off
Temperature Coefficient
REMOTE ON/OFF CONTROL
-0.02
Positive Logic (standard)
Referenced to –Vin pin
Negative Logic (optional)
Referenced to –Vin pin
Input Current of CTRL Pin
Remote OFF Input Current
PROTECTION
Short Circuit Protection
Nominal Vin
Nominal Vin
Over Load Protection
% of rated Iout; hiccup mode
DC/DC ON
DC/DC OFF
DC/DC ON
DC/DC OFF
-0.5
24VDC & 48VDC Input Models
110VDC Input Models
Over Voltage Protection
% of nominal Vout; hiccup mode
Over Temperature Protection
ENVIRONMENTAL SPECIFICATIONS
Operating Case Temperature
Base-plate
Terminal block types
Storage Temperature
Others
Vertical direction by natural convection (20LFM)
Module without assembly options
Thermal Impedance (See Note 3)
0.24” height heatsink
0.45” height heatsink
Relative Humidity
Thermal Shock
Shock
Vibration
MTBF
MIL-HDBK-217F Ta=25°C, full load
04/30/2014
36
36
75
160
9
18
43
8.1
16.3
36.0
50
100
185
See Table
Pi type
%
See Table
75
100
200
300
200
250
75
75
+0.02
Open or 3 ~ 12VDC
Short or 0 ~ 1.2VDC
Open or 3 ~ 12VDC
Short or 0 ~ 1.2VDC
1
3
mVp-p
µs
ms
%/°C
mA
mA
Continuous, automatic recovery
120
150
%
150
115
130
%
+115
°C
-40
-40
-55
+115
+105
+125
°C
°C
6.7
5.4
4.7
°C/W
5
95
% RH
MIL-STD-810F
EN61373, MIL-STD-810F
EN61373, MIL-STD-810F
408,700
hours
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 2 of 9
DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
Rev D
SPECIFICATIONS: DCHBW100 SERIES
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
GENERAL SPECIFICATIONS
Efficiency
Switching Frequency
TEST CONDITIONS
Nominal input voltage and full load
24VDC & 48VDC nominal input models
110VDC nominal input models
1 minute (reinforced insulation)
110VDC nominal input models
Isolation Voltage
1 minute (basic insulation)
24VDC & 48VDC nominal input models
Isolation Resistance
Isolation Capacitance
PHYSICAL SPECIFICATIONS
Weight
Dimensions (L x W x H)
Case Material
Base Material
Potting Material
SAFETY & EMC CHARACTERISTICS
Safety Approvals
EMI (See Note 4)
ESD
Radiated Immunity
Fast Transient (See Note 5)
Surge (See Note 5)
Conducted Immunity
Power Frequency Magnetic Field
Min
Input to Output
Input to Case
Output to Case
Input to Output
Input to Case
Output to Case
500VDC
225
270
3000
1500
1500
2250
1600
1600
1
Typ
Max
See Table
250
275
300
330
2500
Standard models
“T” suffix models
“TF” suffix models
“TF1” suffix models
Standard models
“T” suffix models
“TF” suffix models
“TF1” suffix models
24VDC & 48VDC nominal input models
110VDC nominal input models
24VDC & 48VDC nominal input models
EN55011, EN55022
EN61000-4-2
Air ±8kV and Contact ±6kV
EN61000-4-3
20 V/m
EN61000-4-4
±2kV
EN61000-4-5
EN55024 ±2kV and EN50155 ±2kV
EN61000-4-6
10 Vrms
EN61000-4-8
100A/m Continuous; 1000A/m 1 Second
Unit
kHz
kHz
VAC
VAC
VAC
VDC
VDC
VDC
GΩ
pF
3.70oz (105g)
8.29oz (235g)
9.88oz (280g)
10.12oz (287g)
2.40 x 2.28 x 0.50 inches (61.0 x 57.9 x 12.7 mm)
3.35 x 2.40 x 1.27 inches (85.0 x 61.0 x 32.3 mm)
3.35 x 2.40 x 1.47 inches (85.0 x 61.0 x 37.3 mm)
3.35 x 2.40 x 1.53 inches (85.0 x 61.0 x 38.8 mm)
Metal
Aluminum base-plate with plastic case
FR4 PCB
Silicon (UL94-V0)
UL60950-1, EN60950-1, EN50155
Class A, Class B
Perf. Criteria A
Perf. Criteria A
Perf. Criteria A
Perf. Criteria A
Perf. Criteria A
Perf. Criteria A
NOTES
1. Input Source Impedance: These converters will operate under all listed specifications without external components assuming that the source
voltage has very low impedance and reasonable input voltage regulation. Highly inductive source impedances can affect the stability of the
converter. Since real world voltage sources have finite impedance, performance can be improved by adding an external filter capacitor.
- For 24VDC & 48VDC nominal input models, we recommend Nippon chemi-con KY series, 100μF/100V.
- For 110VDC nominal input models, we recommend Ruby-con BXF series, 68µF/200V.
2. Maximum output deviation is +10% inclusive of remote sense and trim. If remote sense is not being used the +SENSE should be connected to
its corresponding +OUTPUT and likewise the -SENSE should be connected to its corresponding –OUTPUT.
3. (1) Thermal test conditions for vertical direction are by natural convection (20LFM).
(2) The iron base-plate dimensions are 19” x 3.5” x 0.063” (the height is EIA standard 2U).
(3) Heat sink is optional. See the “Model Number Setup” table on page 8 for suffix options.
4. The DCHBW100 standard models (no assembly options) can meet EN55011, EN55022 Class A or Class B with additional external components.
5. An external input filter capacitor is required if the module has to meet EN61000-4-4, EN61000-4-5. For 24VDC & 48VDC nominal input models,
we recommend connecting two aluminum electrolytic capacitors (Nippon chemi-con KY series, 220μF/100V) in parallel. For 110VDC nominal input
models, we recommend connecting three aluminum electrolytic capacitors (Nippon chemi-con KXJ series, 150μF/200V) in parallel.
6. Output voltage is adjustable for 10% trim up or -20% trim down of nominal output voltage by connecting a single resistor between TRIM and
+SENSE pins for trim up or between TRIM and -SENSE pins for trim down. To calculate the value of the resistor RU and RD for a particular output
voltage see page 6.
7. Measured by 20MHz bandwidth.
8. CASE GROUNDING: EMI can be reduced when you connect the four screw bolts to the shield plane.
9. This series comes with several different options: negative remote on/off control, heatsinks, case pin, sync pin, pin length, terminal block, and
thru-hole inserts. See the “Model Number Setup” table on page 8 for more ordering information.
CAUTION: This power converter is not internally fused. An input line fuse must always be used.
Due to advances in technology, specifications are subject to change without notice.
04/30/2014
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 3 of 9
DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
Rev D
DERATING CURVES
DCHBW100-48S05 Derating Curve (Note 3)
DCHBW100-48S05 Derating Curve (Note 3)
With 0.24” Height Heat-Sink
DCHBW100-48S05 Derating Curve (Note 3)
With 0.45” Height Heat-Sink
EFFICIENCY GRAPHS
DCHBW100-48S05 Efficiency vs Input Voltage
04/30/2014
DCHBW100-48S05 Efficiency vs Output Load
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 4 of 9
DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
Rev D
MECHANICAL DRAWINGS
24VDC & 48VDC Nominal Input Models
PIN
1
2
3
4
5
6
7
8
9
PIN CONNECTION
DEFINE
DIAMETER
-Vin
0.04 Inch
Case
0.04 Inch
Ctrl
0.04 Inch
+Vin
0.04 Inch
-Vout
0.08 Inch
-Sense
0.04 Inch
Trim
0.04 Inch
+Sense
0.04 Inch
+Vout
0.08 Inch
* Screw locked torque: MAX 5.0kgf-cm (0.49N-m)
110VDC Nominal Input Models
1. All dimensions in inch (mm)
2. Tolerance: x.xx±0.02 (x.x±0.5)
x.xxx±0.01 (x.xx±0.25)
3. Pin pitch tolerance ±0.01 (0.25)
4. Pin dimension tolerance ±0.004 (0.1)
5. Mounting Screws should always be used.
* Screw locked torque: MAX 3.5kgf-cm (0.34N-m)
04/30/2014
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 5 of 9
DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
Rev D
TERMINAL BLOCK OPTIONS
Terminal Block Models (“T” suffix)
Terminal Block w/ EMC Filter (“TF” suffix)
Terminal Block w/ EMC Filter that Can be Connected to PE(“TF1” suffix)
04/30/2014
PIN
1
2
3
4
5
6
7
8
9
PIN CONNECTION
DEFINE
-Vin
NC
Ctrl
+Vin
-Vout
-Sense
Trim
+Sense
+Vout
1. All dimensions in inch (mm)
2. Tolerance: x.xx±0.02 (x.x±0.5)
x.xxx±0.01 (x.xx±0.25)
3. Screw 1 locked torque:
MAX 11.2kgf-cm/1.10N-m
4. Screw 2 locked torque:
MAX 5.2kgf-cm/0.51N-m
5. Screw 3 locked torque:
MAX 12.0kgf-cm/1.18N-m
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 6 of 9
DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
Rev D
HEATSINK OPTIONS
Vertical Fin Orientation (Suffixes “H”, “H2”)
Horizontal Fin Orientation (Suffixes “H1”, “H3”)
Notes
HS:
HS1:
HS2:
HS3:
Height H=0.45” Vertical
fin, 7G-0021A-F
Height H=0.24” horizontal
fin, 7G-0022A-F
Height H=0.24” vertical
fin, 7G-0023A-F
Height H=0.45” horizontal
fin, 7G-0024A-F
1. All dimensions in inch (mm)
2. Tolerance: x.xx (x.x±0.5)
x.xxx±0.01 (x.xx±0.25)
TERMINAL BLOCK OPTIONS
Terminal Block with Al Base-plate (Suffix T)
Terminal Block Type
Weight
Dimensions
Thru-Hole (WxL)
T
Terminal Block with Al Base-plate and EMC
Filter (Suffix TF)
TF
8.29oz (235g)
9.88oz (280g)
3.35 x 2.40 x 1.27 inches
3.35 x 2.40 x 1.47 inches
(85.0 x 61.0 x 32.3 mm)
(85.0 x 61.0 x 37.3 mm)
2.126 x 3.071 inches (54.00 x 78.00 mm), 4-Ø0.17 inches (Ø4.3mm)
Terminal Block with Anodized Al Base-plate and
EMC Filter (Suffix TF1)
TF1
10.12oz (287g)
3.35 x 2.40 x 1.53 inches
(85.0 x 61.0 x 38.8 mm)
NOTES
1. Terminal block models (suffix “T”, “TF”, and “TF1”) cannot be equipped with a heatsink.
2. Only 0.200” pin length is available with terminal block options.
3. Models with EMC filter (suffix “TF” and “TF1”) meet EN55011, EN55022 Class A.
04/30/2014
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 7 of 9
Rev D
DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
OUTPUT VOLTAGE ADJUSTMENT
Output is adjustable for 10% trim up or -20% trim down of nominal output voltage by connecting an external resistor between the TRIM
pin and either the +SENSE or -SENSE pins. With an external resistor between the TRIM and -SENSE pin, the output voltage set
decreases. With an external between the TRIM and -SENSE pin, the output voltage set point increases. Maximum output deviation is
+10% inclusive of remote sense. The value of the external resistor can be obtained by the equations below. The external TRIM resistor
needs to be at least 1/8W resistor.
Trim Up
Trim Down
 V (100 + ∆%) (100 + 2∆%) 
RU =  OUT
−
KΩ
∆%

 1.225∆%
 100 
RD = 
− 2 KΩ
 ∆% 
APPLICATION NOTES
Assembly
04/30/2014
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 8 of 9
DCHBW100 SERIES
82.5~100.8 Watts
Half-Brick DC/DC Power Converters
Single Output
Rev D
MODEL NUMBER SETUP
DCHBW
100
24
S
12
R
Series Name
Output Power
-
Input Voltage
Output Quantity
Ouptut Voltage
Remote On/Off & Pin Length
100: 100 Watts
24: 8.5-36 VDC
S: Single
3.3: 3.3 VDC
None: Positive Logic, 0.200” pin length
9-36 VDC
05: 5 VDC
S: Positive Logic, 0.145” pin length
48: 16.5-75 VDC
12: 12 VDC
R: Negative Logic, 0.200” pin length
110: 43-160 VDC
15: 15 VDC
RL: Negative Logic, 0.145” pin length
24: 24 VDC
28: 28 VDC
48: 48 VDC
TH
Thru-Hole Inserts
H
(1)
None: Threaded Inserts
TH: Ø0.126 Thru-Hole Inserts (1)
Heatsink
TF
(1) (2)
None: No Heatsink
Terminal Block (2) (3) (4)
None: No Terminal Block
H: 0.45” Vertical 7G-0021A-F
H1: 0.24” Horizontal 7G-0022A-F
H2: 0.24” Vertical 7G-0023A-F
H3: 0.45” Horizontal 7G-0024A-F
T: Terminal block with aluminum base-plate
TF: Terminal block with aluminum base-plate and EMC filter
TF1: Terminal block with anodized aluminum base-plate and
EMC filter, can be connected to Protective Earth (PE)
NOTES
1. Models with thru-hole inserts cannot be equipped with a heatsink.
2. Terminal block models (suffix “T”, “TF”, and “TF1”) cannot be equipped with a heatsink.
3. Only 0.200” pin length is available with terminal block options.
4. Models with EMI filter (suffix “TF” and “TF1”) meet EN55011, EN55022 Class A.
COMPANY INFORMATION
Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development
engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008
certification is just one example of our commitment to producing a high quality, well-documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely
with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide
ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your
future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
04/30/2014
(603)778-2300
(888)597-9255
(603)778-9797
[email protected]
www.wallindustries.com
37 Industrial Drive
Exeter, NH 03833
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
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