BSPA Type 1 and Type 2 SPDs

High capacity surge protective devices

BSPA surge protective devices (SPDs) are UL® Listed 1449 4th Edition devices featuring a compact NEMA® 4X enclosure suitable for external installation on or near an electrical assembly in a variety of environments.

BSPA units are available in all common voltage and system configurations, and in a variety of peak surge current capacity ratings from 50 through 200 kA per phase. Several feature package options are available to extend application flexibility.

Product profile No. 10732

NEC requirements and selection guide no. 10876

Data sheet No. 10661

Quick start guide No. 10678

Installation manual No. 10679

Application guide No. 3193

Surge protective device master spec No. 10204

Warranty statement No. 3A1502

Bussmann series SPD selector

Find the surge protective device you need based upon your overvoltage protection needs - covers power and data signal SPDs.

Catalog Number BSPA_ (build-a-code) See product profile No. 10732 for catalog number system
Voltages and systems Single-phase
- 120
- 240 V
Three-phase Wye
- 120/208 V
- 240/415 V
- 277/480 V
- 347/600 V
Three-phase Delta
- 240 V
- 480 V
- 600 V
SCCR 200 kA
Nominal discharge current 20 kA In
Surge current capacity per phase Imax - 50 kA
- 100 kA
- 150 kA
- 200 kA
Enclosures NEMA 4X plastic
Configurations - Basic (Type 1)
- Standard (Type 2)
Agency information - Basic (Type 1), Standard (Type 2) UL Listed 1449 4th Edition
- UL 1283 6th Edition
- CSA Type 1 and Type 2
- RoHS compliant
Warranty 10 years


  • 50 kA to 200 kA surge current capacity ratings (Imax) meet the requirements of most commercial and light industrial applications covering service entrances, distribution panelboards and point-of-use applications.
  • UL maximum 20 kA nominal discharge current rating (In) and 200 kA Short-Circuit Current Rating (SCCR) meet most system requirements.
  • Tri-color LED status indicators provide surge protection at a glance.
  • Available Form C contact, EMI/RFI filtering and surge counter options to meet specific application requirements.