1250-XS-120 Datasheet, PDF (1/3 Pages) Bourns Electronic Solutions – General Duty AC Surge Protective Device

*RoHS ^COMPLIANT
Features
■ 50 kA max. discharge current rating
■ Multi-pole uni-block design
■ DIN Rail mountable
■ UL 60691 compliant integrated thermal
disconnect
■ Visual fault indicator
■ Remote signalling capability
■ Compact design ideal for limited spaces
■ Standards compliance:
■ RoHS compliant*
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
L/N . . .
C
Ft
V : High energy varistor
Ft : Thermal fuse
C : Remote signaling contact
V
t° : 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)
1250-xS-120
120/240 V,
120/208 V
150 V
230 V
700 V
0.9 kV
Model No.
1250-xS-230
1250-xS-400
220/380 V,
240/415 V
220/380 V,
277/480 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
1000 V
1.25 kV
50 kA
100kAIC
1200 V
1.8 kV
1250-xS-480
347/600 V,
480 V
550 V
770 V
1800 V
2.5 kV
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
1250-xS-120
Model No.
1250-xS-230
1250-xS-400
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
1250-xS-480
1250-xS-120
Model No.
1250-xS-230
1250-xS-400
-50 °C to +85 °C
13,000 ft. (4,000 m)
5 to 95 % Non-condensing, up to 100 % External
IP 20
1250-xS-480
*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.