Phase Monitor Relay — Phase Monitor Relays are designed
to monitor phase voltage unbalance, incorrect phase sequence
and line undervoltage of a 3 phase system.
PHASE
MONITOR
RELAY
Finger Protection Shields — Snap-on shields for both con-
tactors and starters, reversing and non-reversing provides type
IP20 Finger Protection. Prevents accidental contact with line
load terminals.
FINGER
PROTECTION
SHIELDS
Overload Locking Covers — Snap-on transparent or opaque
plastic panel for covering access port to the overload relay
trip setting dials. Helps prevent accidental or unauthorized
changes to trip reset setting. Five varieties offers maximum
application flexibility.
OVERLOAD
LOCKING
COVER
Mechanical Interlock and Reversing Kits — These kits are
available for field assembly of reversing starters using
components. The Reversing Kits include a mechanical
interlock, stabilizer bar and a pre-cut, trimmed and
formed wire set. Auxiliary contacts are not supplied but
can be ordered separately. The snap-fit mechanical inter-
lock and stabilizer bar do not require tools for assembly.
Installation instructions are included with the device.
WIRE SET
STABILIZER BAR
MECHANICAL
INTERLOCK
NEMA 1 NEMA 3R
ENCLOSED STARTERS
Type Definition
1
Enclosures are intended for indoor use primarily to
provide a degree of protection against limited amounts of
falling dirt.
3R
Enclosures are intended for outdoor use primarily to
provide a degree of protection against rain, sleet, and
damage from external ice formation.
4X
Enclosures are intended for indoor or outdoor use
primarily to provide a degree of protection against
corrosion, windblown dust and rain, splashing water, hose-
directed water, and damage form external ice formation.
12
Enclosures are intended for indoor use primarily to
provide a degree of protection agains circulating dust,
falling dirt, and dripping noncorrosive liquids.
ENCLOSURES
NEMA Definitions
Short Circuit Protection — Fuses and Inverse-Time Circuit
Breakers may be selected per Article 430, Part D of the
National Electrical Code to protect motor branch circuits from
fault conditions. If higher ratings or settings are required to
start the motor, do not exceed the maximum as listed in
Exception No. 2, Article 430-52.
Cover Control Kits for Enclosures — These kits are avail-
able for NEMA 1 enclosures in versions such as Start/Stop,
Hand-Auto, Hand-Off-Auto, Test-Off-Auto — all available with
and without pilot light options. For reversing applications, For-
ward-Stop-Reverse, Up-Stop-Down and Open-Stop-Close with
and without pilot lights are available. For other NEMA types,
these and other versions such as On-Off are available. The kits
are complete with wires and instructions. Assembly is fast and
easy, requiring only a screwdriver in most cases. NEMA 1
enclosures have removable blank plates or knockouts and
NEMA 3R, 4X and 12 enclosures have removable hole plugs
that cover the pre-punched holes.
ISLAND & 10250T TYPE COVER CONTROL
WITH ACCOMPANYING ENCLOSURES
NEMA, Contactors & Starters, (Freedom)
Technical Information Publication
8231
Page 6
February 2, 1998
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