DANGER - Blemo

Mounting
Mounting Precautions
Follow these precautions when mounting the SH31 soft starter:
• The soft starter is compliant with pollution Degree 2 as defined in NEMA ICS1-1 or IEC 60664-1.
• For environment pollution degree 3 install the product inside a cabinet type 12 or IP54.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
SH31 soft starters are open devices and must be mounted in a suitable enclosure.
Failure to follow these instructions will result in death or serious injury.
• The SH31 soft starter generates heat and must be properly ventilated. Refer to "Thermal considerations for sizing enclosures” page
19 to determine power dissipated.
• When several soft starters are installed in a control panel, arrange them in a row. Do not stack soft starters. Heat generated from the
bottom soft starter can adversely affect the ambient temperature around the top soft starter.
• Install the SH31 vertically, within ± 10° (other p ositions are not allowed).
• Do not place it close to heating elements. Leave sufficient free space so that the air required for cooling purposes can circulate from
the bottom to the top of the unit.
• Electrical current through the SH31 will result in heat losses that must be dissipated into the ambient air immediately surrounding the
soft starter. To help prevent a thermal fault, provide sufficient enclosure cooling and/or ventilation to limit the ambient temperature
around the soft starter.
S ≥ 50 mm
(1.95 in.)
S ≥ 100 mm (3.9 in)
S ≥ 100 mm (3.9 in)
S ≥ 50 mm
(1.95 in.)
Note: For the soft starters mounted side-by-side, the free space
must be ≥ 50 mm (1.95 in.)
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Check that no liquid, dust or conductive object can fall into the soft starter (degree of protection IP00 from above).
Failure to follow these instructions will result in death or serious injury.
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