Description
Ratings and Models
The Industrial Shock Block® SB4000 series is available for use in single-phase, split-phase, three-phase and 4-wire systems
from 120 to 240 V with a maximum full load current up to 30 A. The power system can be either solidly or high-resistance
grounded. All SB4000 models equipped with connections for a neutral wire have built-in grounded-neutral protection per
the UL 943 standard. The standard enclosure is IP 69K/NEMA 4X and outdoor rated, suitable for all industrial environments
including high temperature washdown used in food production applications. An optional panel-mount conversion kit can also
be ordered for easily installation into your OEM application. The SB4000 includes advanced harmonic filtering, an automatic
self-test feature, and is compliant to the UL 1998 Software in Programmable Components standard.
Ground-Fault Circuit Interrupter (GFCI), Class A
The SB4000 is available as a 120V, or 208 - 240 V Class A GFCI, allowing new construction or retro-fit projects to meet
NEC 210.8 for a wide variety of single-phase, split-phase, three-phase and four-wire (neutral supported) loads up to
30 Amperes.