Bourns 1251 Series Installation Instructions

ATTENTION!
• Installation must be performed only by a properly trained
operator or an electrician.
• Applicable electrical installation rules must be followed.
• The unit must be used only as a surge protector and according
to the conditions described in this document.
Technical Data
1251-
Specification
120S-
N1
•
Single Phase
Split Phase
Wye
Type
Max. Discharge
Current by Mode
(Imax)
Nom. Discharge
Current by Mode
(In)
MCOV L-N
(Vac)
MCOV L-L
N/A
(Vac)
NOTES:
Model 1252 Series contains a filter.
N1: For the side nipple.
N2: For the nipple in the back.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
1251- 1251- 1251-
240S- 208Y- 120S-
N1 N1 N2
•
•
•
1
280 280 N/A
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
Hardwired AC Hybrid H-SPD
INSTALLATION INSTRUCTIONS
• The device must be selected in relation to a dedicated AC
network (see Technical Data).
• If LED lights are OFF, the surge protector must be replaced.
Model
1251- 1251- 1252-
240S- 208Y- 120S-
N2 N2 N1
•
•
•
50 kA
20 kA
140
280 280 N/A
Users should verify actual device performance in their specific applications.
1251 & 1252 Series
1252- 1252- 1252-
240S- 208Y- 120S-
N1 N1 N2
•
•
•
2
280 280 N/A
Specifications are subject to change without notice.
1252- 1252-
240S- 208Y-
N2 N2
•
•
280 280