Features

disconnect

1250 Series General Duty AC Surge Protective Device

*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.

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 Characteristics

General Characteristics

Environmental Characteristics

Characteristic

Model No.

1250-xS-120

1250-xS-230

1250-xS-400

1250-xS-480

AC Network

120/240 V,

120/208 V

220/380 V,

240/415 V

220/380 V,

277/480 V,

347/600 V

347/600 V,

480 V

Connection Mode

1-Pole, L-N or L-G

AC System

IT, TT, TN, Single, Split Phase, Delta, Wye

Max. Operating Voltage (MCOV)

150 V

275 V

420 V

550 V

TOV Withstand

230 V

440 V

440 V

770 V

Leakage Current at Uc

< 1 mA

Follow Current

None

UL Nominal Discharge Current (In)

15 Impulses 8/20 µs

20 kA

Max. Discharge Current (Imax)

1 Impulse 8/20 µs

50 kA

UL Voltage Protection Rating (VPR)

700 V

1000 V

1200 V

1800 V

Protection Level (Up)

0.9 kV

1.25 kV

1.8 kV

2.5 kV

UL Short-Circuit Current Rating (SCCR)

100kAIC

Characteristic

Model No.

1250-xS-120

1250-xS-230

1250-xS-400

1250-xS-480

Thermal Disconnector

UL 60691

Overcurrent Protection

Time Delay - 125 A Max.

Connection

By Screw Terminals, #6 AWG Max.

Dimensions

90 x 18 x 67 mm / (3.543 x 0.709 x 2.638 In.)

Mounting

DIN Rail, 35 mm Symmetrical

Remote Signal Indicator

250 Vac Max., 2 A

Enclosure Material

Thermoplastic UL 94V0

Characteristic

Model No.

1250-xS-120

1250-xS-230

1250-xS-400

1250-xS-480

Operating Temperature

-50 °C to +85 °C

Operating Altitude

13,000 ft. (4,000 m)

Relative Humidity

5 to 95 % Non-condensing, up to 100 % External

Environmental Rating

IP 20

Electrical Diagram

General Information

L/N

V : High energy varistor

Ft : Thermal fuse

C : Remote signaling contact

t° : Thermal disconnection system

. .

.

C

Ft

V