MANUAL MOTOR STARTER GUIDE
APRIL 19 74/80
7.6.2.2 Combination Motor Controllers, Type F
Type F constructions are divided into two styles: two-component and three-component assemblies. Two-component
Type F assemblies utilize a manual, self-protected device for both short- circuit and overload protection. Three-com-
ponent Type F assemblies utilize a separate overload relay, and short- circuit protection is provided by a magnetic
only (MO) manual motor starter.
The additional criteria for line-side terminal spacing and visible trip indication described in the chapter below are
also applicable for Type F Combination Motor Controllers.
Type F Combination Motor Controllers can be tested for either Type 1 or Type 2 coordination.
With the inclusion of a contactors for remote control, Type F Combination Motor Controllers increase function-
ality while still offering customers the benefit of using compact and cost-efficient manual motor starters for
branch short- circuit protection.
Three-component assemblies provide additional benefits, including selectable Class 10, 20, 30 overload protec-
tion (electronic), along with a wiring schematic identical to that of a conventional combination starter (e.g.
molded case circuit-breaker, contactor, and overload relay).
Combination Motor Controllers (Type F)
Branch functional requirements
Disconnect means
Short-circuit and ground-fault protection
Control means
Overload protection
Remote
: “Type F”
m voltage: 600Y/347V
Upstream branch protection: Not required
Figure 45: Combination Motor Controllers (Type F)
For information regarding remote starter applications in ungrounded (delta) networks above 347 V AC, see Chapter
7.6.1.2 As part of a magnetic or solid-state starter (non-combination).
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