Installation manual 10679
Effective October 2017
BSPA Type 1 and Type 2 surge protective devices
1. Introduction
1.1 Manual introduction
This installation manual describes the installation
and operation of the Bussmann™ series BSPA
surge protective device (SPD). This document
covers most aspects of installation and operation
and is a guide only for licensed/qualified
electricians. If you require further information
regarding a particular installation, application,
or maintenance activity, please contact your
Bussmann series product representative. These
instructions do not cover all details, variations
or combinations of the equipment, its storage,
delivery, installation, check-out, safe operation or
maintenance. Care must be exercised to comply
with the prevailing electrical code requirements as
well as with local, state, and national regulations,
and the safety practices for this class of
equipment.
Please read and understand ALL installation and
operating instructions prior to installation and use
of this equipment.
1.2 Product overview
The Bussmann series BSPA protects critical
electrical and electronic equipment from damage
by voltage transients and surges when properly
installed. This is done by shunting high energy
lightning surges (and other transient disturbances)
away from the equipment being protected. It does
this in nanoseconds by providing a low impedance
surge path through thermally protected metal
oxide varistors (MOV) while supporting power
frequency voltage. The Type 2 BSPA models
equipped with EMI filtering are designed to
protect sensitive equipment from electrical noise.
Proper installation is critical to ensure the BSPA
unit operates as intended.
The Type 1 BSPA units are intended for installation
between the secondary of the service transformer
and the lineside of the service equipment
overcurrent protective device; as well as the
loadside, including watt-hour meter socket
enclosures intended to be installed without an
external overcurrent protective device.
The Type 2 BSPA units are intended for installation
on the loadside of the service equipment
overcurrent protective device, including branch
panel locations and functions to protect sensitive
electronic equipment from damaging voltage
transients and surges.
The BSPA should be installed as close as possible
to the equipment to be protected.
BSPA units are available in voltage ratings from
120 to 600 Vac, surge current ratings from 50 kA
to 200 kA, and two sizes of NEMA 4X enclosures.
Enclosure size is determined by voltage and peak
surge current rating. See the dimension drawings
for details.
BSPA units are available in five feature options
covering Form C relays, audible alarms and EMI
filtering. See section
12. Catalog numbering
system
for details.
Contents
Description Page
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Signal words . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . 3
4 BSPA catalog number . . . . . . . . . . . . . . . . . . . . 3
5 BSPA product nameplate . . . . . . . . . . . . . . . . . . 3
6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7 Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 6
8 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
9 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
11 Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
12 Catalog numbering system . . . . . . . . . . . . . . . 8
13 Voltage configurations per enclosure size . . . . 9
14 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
