Issue:
Product Design Features
Product Line:
Heavy Duty Safety Switches
Cause:
Selection
Resolution:
HDSS = Heavy Duty Safety Switches
GDSS = General Duty Safety Switches
DTSS = Double Throw Safety Switches
SCCR = Short Circuit Current Rating
Square D does NOT offer any NEMA 7 or 9 switches for the GDSS or DTSS.
Square D does offer a few HDSS Types rated for NEMA 7 or 9, hazardous locations. See the current ON-LINE Digest for the catalog numbers.
DIGEST LINK
The NEMA 7 and 9 HDSS use Automatic Molded Case Switches and are considered NON-FUSIBLE and are NOT a Visible Blade Type design.
They are available in a 60Amp,100Amp and 225amp MAX. devices.
These devices are cULus Listed, except for 2 catalog numbers, the H225XJG and H225XJGAA, they are NOT cULus due to limited wire bending space.
These devices DO NOT have any SCCR, because there is NO internal overcurrent protection. When SCCR is required there MUST be upstream protection for the device.
FOR APPLICATIONS WHERE OVERCURRENT PROTECTION IS REQUIRED USE THE NEMA 7 and 9 MOLDED CASE CIRCUIT BREAKER ENCLOSURES. SEE CURRENT ON-LINE DIGEST SECTION 7
Product Design Features
Product Line:
Heavy Duty Safety Switches
Cause:
Selection
Resolution:
HDSS = Heavy Duty Safety Switches
GDSS = General Duty Safety Switches
DTSS = Double Throw Safety Switches
SCCR = Short Circuit Current Rating
Square D does NOT offer any NEMA 7 or 9 switches for the GDSS or DTSS.
Square D does offer a few HDSS Types rated for NEMA 7 or 9, hazardous locations. See the current ON-LINE Digest for the catalog numbers.
DIGEST LINK
The NEMA 7 and 9 HDSS use Automatic Molded Case Switches and are considered NON-FUSIBLE and are NOT a Visible Blade Type design.
They are available in a 60Amp,100Amp and 225amp MAX. devices.
These devices are cULus Listed, except for 2 catalog numbers, the H225XJG and H225XJGAA, they are NOT cULus due to limited wire bending space.
These devices DO NOT have any SCCR, because there is NO internal overcurrent protection. When SCCR is required there MUST be upstream protection for the device.
FOR APPLICATIONS WHERE OVERCURRENT PROTECTION IS REQUIRED USE THE NEMA 7 and 9 MOLDED CASE CIRCUIT BREAKER ENCLOSURES. SEE CURRENT ON-LINE DIGEST SECTION 7
Released for:Schneider Electric USA
