SDSA and SPDE Enclosed Surge Protective Devices

SurgeLogic™ SDSA and SPDE Externally Mounted Surge Protective Devices (SPDs) deliver UL 1449 Type 1 surge protection for single-phase and three-phase electrical systems up to 600 Vac. SDSA provides reliable service entrance and point-of-use surge suppression, while SPDE adds neutral-to-ground protection, diagnostic contacts, and audible alarm options for enhanced power system reliability. Additional information can be found on the SDSA SPD product range and the SPDE SPD product range.

SDSA and SPDE Externally Mounted SPDs

Type SDSA

Single Phase Two Wire

Type SPDE

Surgelogic™ SDSA surge protective devices are designed and listed for indoor or outdoor installation and surge suppression for single-phase three-wire 120/240 Vac or two-wire 120 Vac 60 Hz electrical services. This product is ideal for panel builders as well as manufacturers and integrators of instrumentation cabinets for industrial and commercial applications for single-phase power systems.

Surgelogic SDSA surge protective devices are designed and listed for indoor or outdoor installation and surge suppression for three-phase electrical services up to 600 Vac. The SDSA series is used extensively in service entrance panels to provide an efficient and economical means of surge suppression and also ideal for point of use applications for that added level of protection.

Surgelogic SPDE surge protective devices add neutral to ground (N-G) protection and optional dry contacts (DC) and audible alarm (AA). The SPDE can also be mounted on a DIN Rail with the included mounting bracket.

US and Canadian UL Listed as Type 1 SPD to the UL 1449 standard. Complies with requirements of NEC Article 285 (2017), CSA C233.1–87, and CSA C22.2 No. 8–M1986 as appropriate.

SDSA and SPDE Surge Protective Devices

System Voltage

Surge Current Rating per Phase (kA)

L-N Only Cat. No.

L-N & N-G Cat. No.

L-N & N-G) with DC & AA Cat. No.

120 V, one-phase, two-wire

36

SDSA05

50

SPDE0

SPDE0A

120 / 240 V, one-phase, three-wire

36

SDSA15

50

SPDE1

SPDE1A

208Y / 120 V three-phase, four-wire

50

SDSA2040

SPDE2

SPDE2A

240 V Delta, three-phase, three-wire

50

SDSA2040D

SPDE6A

480Y / 277 V, three-phase, four–wire

50

SDSA4040

SPDE4

SPDE4A

480 V Delta, three-phase, three-wire

50

SDSA4040D

SPDE5A

600Y / 347 V, three-phase, four-wire

50

SDSA3650

SPDE8A

600 V Delta, three-phase, three-wire

50

SDSA3650D

SPDE9A

Feedback