Dual-Feed 600A Load Center Frame
600CB10 & 600CB12 Installation Guide
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© Telect, Inc. All rights reserved. 7.14.17 136429-2
509.926.6000 :: www.telect.com
1.1 Overview
The Telect dual-feed 600A per feed load center frames
provide high-capacity, -48V and ±24V power protection
for secondary power distribution and data, and
communications equipment. Telect load center frames
are also ideal for primary distribution in small central
offices and at remote sites.
Models 600CB10 and 600CB12 are open-frame
chassis providing excellent heat dissipation and
overhead access to the load center’s BATT and RTN
terminals, vertical inputs.
Models 600CB10 and 600CB12 are white, 2RU, and fit
racks with either EIA or WECO spacing.
•Model 600CB10 contains 10 interrupter positions
on each side and fits a 19-in. rack (an adapter
kit can be purchased separately to mount the
600CB10 in a 23" rack).
•Model 600CB12 has 12 interrupter positions on
each side and fits a 23-in. rack.
Both accommodate AIRPAX®-style LEL or Carling CA1 circuit breakers or fuses (TPC/TPW and TPS/TLS) in single-
through quad-pole configurations. Each circuit breaker or fuse pole position accommodates a bullet-style, plug-in circuit
breaker or fuse holder up to 100A. With double-pole circuit breakers or TPW fuses, the maximum output load can be up to
200A. The triple-pole circuit breakers have a maximum load of 250A and the quad-pole circuit breakers have a maximum
load of 400A.
Sides A and B are electrically isolated except for the alarm card, which contains power, fuse and bay status relays with
dry, Form-C contacts. The contacts are connected to wire-wrap pins to switch on external power to visual/audio external
alarms. The alarm card also controls the three dual-color LEDs on the front panel.
All input, output and alarm terminals are within the open-frame chassis. All BATT and RTN inputs, outputs and ground
accommodate dual-hole lugs. Input and output terminals are studs and the ground terminals are bolt connections at the
sides of the load center near the rear corners. Only one ground connection is required.
Fuses, fuse holders and circuit breakers are sold separately. Also sold separately are single-, double-, triple- and quad-
pole straps for the output of the breakers or fuses. These copper straps bridge the output of the fuse holders or circuit
breakers to the output studs. See telect.com to order breakers, fuses, fuse holders and load straps.
The 600CB10-C and 600CB12-C provide horizontal inputs and a cover. The 600CB10-CL and 600CB12-CL also provide
horizontal inputs, a cover and single-pole load straps pre-installed into the panel.
The 600CB10-VL and 600CB12-VL provide vertical inputs as well as single-pole load straps pre-installed into the panel.
Figure 1 – 600CB10, 19" 10/10 Position
