Surge Protective Devices
OVRT23N40320PTSU
Product data sheet
Electrical Characteristics
Protection mode LL-LN-LG-NG
Number of poles / Type of current 4 / AC
Type / Test class UL 1449 3rd Ed. - Type 4 for Type 2 apps
IEC 61 643-1 2nd Ed. - T2 / II
Nominal voltage (Un) (L-N / L-L) [V] 277 +/- 15% ; 480 +/- 15%
Frequency [Hz] 50-60
Maximum continuous operating voltage (Uc) (L-N / L-L) [V] 320 / 640
Voltage protection level (Ures) 3 kA (L-N / N-G / L-G) [kV] 1.0/0.4/1.0
Voltage protection level (Ures) 5 kA (L-N / N-G / L-G) [kV] 1.1/0.6/1.1
Voltage protection level (Ures) 10 kA (L-N / N-G / L-G) [kV] 1.2/0.7/1.2
Voltage protection rating (VPR - UL 3rd Ed.)
(L-N / N-G / L-G) [kV] 1.0/1.2/1.1
Nominal discharge current (In @ 8/20) [kA] 20
Maximum discharge current (Imax @ 8/20) [kA] 40
Follow current interrupt rating (Ifi) (L-N / N-G) [A] None / 100
Response time [ns] < 25
Operating current (Ic) [mA] < 0.1
Short circuit withstand current (Isccr) [kA] 200
Integrated thermal disconnector Yes
State indicator Yes
Safety reserve No
Remote indicator Yes
Disconnector Circuit breaker B or C curve [A] ≤ 125
Disconnector J class fuse [A] ≤ 100
Mechanical Characteristics
Wire range - Solid wire [AWG] 4-14
Wire range - Stranded wire [AWG] 6-14
Stripping length [In] 0.5
Tightening torque [in-lbs] 24.5
Degree of protection NEMA 1
Remote indicator
Type of contact 1 NO / 1 NC
Minimum load 12 VDC / 10 mA
Maximum load 250 VAC / 1 A
Connection cross section [AWG] 16
Miscellaneous Characteristics
Operating temperature / Storing temperature [°C] -40 to +80 / -40 to +80
Maximum altitude [M/ft] 2000 / 6562
Weight [g/lb] 120/0.25
Color of housing / Fire resistance according to UL94 Gray RAL 7035 / V0
Reference standards UL1449 3rd Ed; IEC 61 643-1; cURus
Replacement Cartridges
Phase OVRT240-320CU
Neutral OVRT270-NCU
Contact us
Canada
ABB Inc.
Low Voltage Products
2117 – 32nd Avenue
Lachine, QC, CANADA H8T 3J1
Tel.: 514-420-3100
Fax: 514-420-3137
Toll Free: 1-800-567-0283
www.abb.ca
While all care has been taken to ensure that the information
contained in this publication is correct, no responsibility
can be accepted for any inaccuracy. The Company reserves
the right to alter or modify the information contained herein
at any time in the light of technical or other developments.
Technical specifi cations are valid under normal operating
conditions only. The Company does not accept any
responsibility for any misuse of the product and cannot be
held liable for indirect or consequential damages.
© Copyright 2011 ABB Inc. All rights reserved.
1SXP430044D0201 / September 2012
