GE Industrial Solutions TKH-TKL with MicroVersaTrip Plus - Manual

Introduction
This publication contains information on mounting
dimensions, lugs and lug covers, internal and external
accessories, and trip unit and rating plug selection for K
Frame molded-case circuit breakers, as shown in Figure
1. It also describes the installation of neutral current
sensors for ground-fault protection.
Lug and Lug Cover Selection
Circuit breakers are provided without lugs and with end
covers (suitable for bus connections). The available lugs
and lug covers are listed in Table 1.
• Lug covers are used with lug connectors.
• End covers are used when connecting a bus to the
breaker.
• Wire ranges:
– TCAL81: (3) 3/0–500 MCM Cu/Al
– TCO81A: (3) 3/0–500 MCM Cu
– TCAL121: (4) 250–350 MCM Cu or
250–500 MCM Al
– TCO121: (4) 250–400 MCM Cu
Frame
Type
Sensor Rating
(Amps)
Rating Plug
(Amps)
Standard Lugs
Cu/Al Cat. No. Optional Lugs
Cu Cat. No.
Lug Covers
Cat. No.
End Covers
Cat. No.
800 All available TCAL81 TCO81A 286A8066G3 286A8066G2
1200 All available TCAL121 TCO121 286A8066G1 286A8066G2
Table 1. Catalog numbers of lugs, lug covers, and end covers.
g
Molded-Case Circuit Breakers
MicroVersaTrip Plus™ Trip Unit in
TKH8S, TKH12S, TKL8S, and TKL12S Breakers
GEH–5374A
1200