NT
Features
■
50 kA max. discharge current rating
■
Multi-pole uni-block design
■
DIN Rail mountable
■
UL 60691 compliant integrated thermal
■
Compact design ideal for limited spaces
■
Standards compliance:
■
RoHS compliant*
*R
oH
S
CO
M
PL
IA
disconnect
■
Visual fault indicator
■
Remote signalling capability
1250 Series General Duty AC Surge Protective Device
General Information
The Bourns Model 1250 Series is a general duty Surge Protective Device (SPD)
designed to protect high risk electrical service entrance and branch panels. This SPD is
intended to be installed at the front end of the installation, in the main switchboard, close
to sensitive terminals or in installations without LPS (lightning rods).
The Model 1250 Series is a single-pole module that can be configured for both common
mode and differential mode protection in single and three phase applications up to 480 V.
®
Electrical Diagram
C
Ft
1. 4
1. 1
1. 2
L/N
V
V:
Ft :
C:
t° :
High energy varistor
Thermal fuse
Remote signaling contact
Thermal disconnection system
Electrical Characteristics
Characteristic
AC Network
Connection Mode
AC System
Max. Operating Voltage (MCOV)
TOV Withstand
Leakage Current at Uc
Follow Current
UL Nominal Discharge Current (In)
15 Impulses 8/20 µs
Max. Discharge Current (I
max
)
1 Impulse 8/20 µs
UL Voltage Protection Rating (VPR)
Protection Level (Up)
UL Short-Circuit Current Rating (SCCR)
General Characteristics
Characteristic
Thermal Disconnector
Overcurrent Protection
Connection
Dimensions
Mounting
Remote Signal Indicator
Enclosure Material
Environmental Characteristics
Characteristic
Operating Temperature
Operating Altitude
Relative Humidity
Environmental Rating
Model No.
1250-xS-120
1250-xS-230
1250-xS-400
1250-xS-480
Model No.
1250-xS-120
1250-xS-230
1250-xS-400
1250-xS-480
120/240 V,
120/208 V
150 V
230 V
220/380 V,
220/380 V,
277/480 V,
240/415 V
347/600 V
1-Pole, L-N or L-G
IT, TT, TN, Single, Split Phase, Delta, Wye
275 V
420 V
440 V
440 V
< 1 mA
None
20 kA
50 kA
347/600 V,
480 V
550 V
770 V
700 V
0.9 kV
1000 V
1.25 kV
100kAIC
1200 V
1.8 kV
1800 V
2.5 kV
Model No.
1250-xS-120
1250-xS-230
1250-xS-400
1250-xS-480
UL 60691
Time Delay - 125 A Max.
By Screw Terminals, #6 AWG Max.
90 x 18 x 67 mm / (3.543 x 0.709 x 2.638 In.)
DIN Rail, 35 mm Symmetrical
250 Vac Max., 2 A
Thermoplastic UL 94V0
-50 °C to +85 °C
13,000 ft. (4,000 m)
5 to 95 % Non-condensing, up to 100 % External
IP 20
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Applications
■
Electrical service entrance
■
Branch panels
1250 Series General Duty AC Surge Protective Device
Product Dimensions and Schematics
1250-1S-xxx
67.0
(2.638)
10.6
(.417)
18.0
(.709)
L/N
L/N
Ft
t°
Mi
90.0
(3.543)
AC Surge
Protector
SPD1250-xxx
Uc
In
Imax
Up
V
C
1250-2S-xxx
67.0
(2.638)
36.0
(1.417)
L/N
L/N
90.0
(3.543)
L
N
Ft
t°
Mi
t°
V
Ft
Mi
AC Surge
Protector
AC Surge
Protector
DIMENSIONS:
V
MM
(INCHES)
SPD1250-xxx
Uc
In
Imax
Up
SPD1250-xxx
Uc
In
Imax
Up
44.0
(1.732)
60.8
(2.394)
10.6
(.417)
C
1250-3S-xxx
54.0
(2.126)
L1
L2
L3
L
L
L
Ft
t°
Mi
t°
V
Ft
Mi
t°
V
Ft
Mi
AC Surge
Protector
AC Surge
Protector
AC Surge
Protector
SPD1250-xxx
Uc
In
Imax
Up
SPD1250-xxx
Uc
In
Imax
Up
SPD1250-xxx
Uc
In
Imax
Up
V
C
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
1250 Series General Duty AC Surge Protective Device
Product Dimensions and Schematics (Continued)
1250-4S-xxx
72.0
(2.835)
L/N
L/N
L/N
L/N
L
L
L
N
Ft
t°
Mi
t°
V
Ft
Mi
t°
V
Ft
Mi
t°
V
Ft
Mi
AC Surge
Protector
AC Surge
Protector
AC Surge
Protector
AC Surge
Protector
SPD1250-xxx
Uc
In
Imax
Up
SPD1250-xxx
Uc
In
Imax
Up
SPD1250-xxx
Uc
In
Imax
Up
SPD1250-xxx
Uc
In
Imax
Up
V
DIMENSIONS:
MM
(INCHES)
C
Standards Compliance
IEC61643-1 - International ................................ Class I, Class II
EN 61643-11 - Europe ....................................... Class I, Class II
NF EN 61643-11 - France ................................. Class I, Class II
UL1449 3rd Edition - USA .................... Type 4, Type 2 Location
UL1449 3rd Edition - Canada ............... Type 4, Type 2 Location
CSA C22.2 No. 8-M1986 ............ Class 9091 32, Class 9091 92
RoHS ..............................................RoHS Directive 2002/95/EC
Jan. 27, 2003 including annex and
RoHS Recast 2011/65/EU June 8, 2011
How To Order
1250 - x S - xxx
Series
Configuration
1 = One Protected Pole
2 = Two Protected Poles
3 = Three Protected Poles
4 = Four Protected Poles
Remote Signaling Code
S = Remote Signaling
Operating Voltage
120 = 120/240 V, 120/208 V
230 = 220/380 V, 240/415 V
400 = 220/380 V, 277/480 V, 347/600 V
480 = 347/600 V, 480 V
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
EMEA:
Tel: +36 88 520 390 • Fax: +36 88 520 211
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
REV. 03/15
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Microcontroller MCU
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