Technical Data Bulletin

Heavy Duty Safety Switches Class 3100
Voltage Monitors
Voltage-indicating safety switches indicate when voltage is present, helping to prevent
arc-flash hazards and electric shocks during maintenance work. Voltage-indicating
safety switches can be combined with other safety features such as key interlock,
viewing windows and lock on provisions.
• UL Listed
• Factory-installed only
• Order the indicators by adding the appropriate suffix shown in Table 41 to the
switch catalog number
• Not available on NEMA Type 7 and 9 and NEMA Type 4 X, Fiberglass and
Krydon
TM
Enclosures
• Not available on two- and three-pole, 200 A, NEMA Type 3R, double throw safety
switches
See Table 41 on page 41.
Table 40 - Voltage Indicators
Suffix
92 93
Description
SI Line Side Indicator
LI Load Side Indicator
LI2 Line and Load Side Indicator
Phenolic Legend Plate
Available engraved and mounted on all heavy duty safety switches, except NEMA
Type 7 and 9. Legend engraved in 1/4 in. (6 mm) high white letters on black
background.
• UL Listed
• Customer to provide legend
• To order, add suffix NP to standard Cat. No.
◦ Example: H363NP
Switch Lubricant
• Field maintenance lubricant is available for servicing blade and jaw components
in switches 600 V and below
• Catalog number SWLUB consists of one tube of BG20 High Performance
Synthetic Grease manufactured by Dow Corning
®
• SWLUB is available in warehouse stock, shipped individually or in multiples of 12
units per carton
3100CT1602 41
92. Available on 30–1200 A Heavy Duty Safety Switches and 30–400 A Double Throw Safety Switches. For NEMA Type 1 or 3R, 30 A or 60 A
fusible switches only, order an equivalent 30 A or 60 A fusible
NEMA Type 12/3R (Suffix AWK) switch.
93. In addition to the suffix in Table 40, a “3” must be added to the switch catalog number for all 30 A and 60 A switches, i.e. H361AWK becomes
H3613AWKLI. The 30 A and 60 A switches will be provided in 100 A enclosures.