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© 2007 Schneider Electric. All Rights Reserved.
63230-216-229-B1
Base Unit
Sepam™ B83 Connection Diagram
DE51894
* Detection of Plugged Connector (required for proper operation. Installed manually)
Connector Type Reference Wiring
0.15 in (4 mm) ring lugs CCA630 or CCA634, for connection
of 1 A or 5 A ZSCTs
1.5 to 6 mm² (AWG 16-10)
Screw type CCT640 VT wiring: same as wiring for the CCA620
Ground connection is by a 4 mm ring lug
DE51845
Functional ground
Ring lug Connect the grounding braid to cubicle ground:
b Flat copper braid with cross-section ≥ 9 mm²
(> AWG 8)
b Maximum length: 11.8 in (300 mm)
b Tightening torque: 6.1 - 8.8 in-lb (0.7 to 1.0 Nm)
Connection characteristics of connectors , , , , , : see page 20
CAUTION DANGER
LOSS OF PROTECTION OR RISK OF
NUISANCE TRIPPING
If Sepam™ loses power or is in fail-safe position,
the protection functions are inactive and all the
Sepam™ output relays drop out. Check to ensure
that this operating mode and the watchdog relay
wiring are compatible with your installation.
Failure to follow this instruction can result in
equipment damage and unwanted shutdown
of the electrical installation.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
b Only qualified electrical workers should install this equipment. Such
work should be performed only after reading this entire set of
instructions.
b NEVER work alone.
b Before performing visual inspections, tests, or maintenance on this
equipment, disconnect all sources of electrical power. Assume that all
circuits are live until they have been completely de-energized, tested,
and tagged. Pay particular attention to the design of the power system.
Consider all sources of power, including the possibility of backfeeding.
b Always use a properly rated voltage sensing device to confirm that
power is off.
b Start by connecting the device to the protective ground and to the
functional ground.
b Screw tight all terminals, even those not in use.
Failure to follow these instructions will result in death or serious injury.
Functional
ground
a
b
c
a
an
b
bn
c
cn
a
b
c
an
bn
cn
CCT640
DPC*
24 - 250V DC
control power
Sepam™ Series 80
Diff
3 CTs
52-CB
3 VTs
3 VTs
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