Product Brochure

www.usa.siemens.com/afci
Combination Type AFCI
Answers for industry.
Reduce the risk of
electrical fires
Siemens Industry, Inc.
Building Technologies Division
5400 Triangle Parkway
Norcross, GA 30092
1-800-964-4114
[e-mail]
The information provided in this brochure contains merely general
descriptions or characteristics of performance which in case of actual
use do not always apply as described or which may change as a result
of further development of the products. An obligation to provide the
respective characteristics shall only exist if expressly agreed in the terms
of contract.
All product designations may be trademarks or product names of
Siemens AG or supplier companies whose use by third parties for their
own purposes could violate the rights of the owners.
Subject to change without prior notice
Order No.: RPPM-COMBO-1209
All rights reserved
Printed in USA
© 2009 Siemens Industry, Inc.
What is unique about
the Siemens
Combination AFCI?
The Arc Fault Circuit Interrupter (AFCI)
technology is important to electrical
contractors as they work to build safe,
efcient electrical distribution systems.
Diagnosing the cause of AFCI trips can
be confusing, but the unique trip
indicators built into every Siemens AFCI
offer help that is not available on any
other AFCI.
Siemens Combination Type AFCI trip
indicators provide a valuable analysis tool to help
electricians pinpoint the type of trip. These indicators
are in the form of LEDs that appear near the handle of
the breaker. The LED indications will appear for 5
seconds each time the AFCI is turned “ON” up to 30
days after the last trip.
J One LED will be illuminated
if the last trip was a result
of an arcing fault. On the
2-pole AFCI, the leg on
which the arcing fault was
detected can be determined
based on which single LED
was illuminated.
J Two LEDs (three LEDs on the
2-pole AFCI) will be
illuminated if the last trip
was a result of an arcing
fault to ground.
J No indication will be
displayed if the AFCI trips as
a result of an overcurrent
condition.
The last know trip indication can also be cleared from
memory to assist with verifying resolution of the problem by
following this simple process:
1. Turn the AFCI to the “OFF” position.
2. Press and hold PTT button(s).
3. Turn the AFCI to the “ON” position.
4. Release PTT button(s) within 3 seconds.
Siemens Combination Type AFCI
Troubleshooting Procedure
Siemens has developed a step-by-step troubleshooting
procedure that simplies the process of diagnosing the
cause of AFCI trips. See instruction sheet at
www.usa.siemens.com/afci for more details. An
abbreviated procedure is listed below:
1) Check AFCI wiring
J Load power, load neutral, and panel neutral (pigtail)
J Multi-wire branch circuits used on single pole AFCI
(dedicated load neutral wires required for single
pole AFCIs)
J Check all connection points for neutral-to-ground
connections
2) If load(s) present:
J Disconnect all loads
J Re-connect and re-energize each load, one at a time
3) If no load present:
J Disconnect AFCI load side wires and re-energize AFCI
(panel neutral (pigtail) must remain connected)
Siemens Branch/Feeder AFCIs utilize a single trip window that
distinguishes between an arcing event and an overcurrent condition as
the reason for the last known trip condition. This window is
permanently reset each time the AFCI is reset.
LED indicator
Last known trip
condition
Yellow 1 Yellow 2 Yellow 3
OFF OFF OFF Overcurrent
ON OFF OFF Arc fault (Leg A)
OFF OFF ON Arc fault (Leg B)
ON ON ON Arc fault to ground
2-pole CAFCI LED indication guide
LED indicator
Last known trip
condition
LED (A) LED (B)
OFF OFF Overcurrent
ON OFF Arc Fault
ON ON Arc Fault to ground
1-pole CAFCI LED indication guide
LED Indication Guide (after recent trip has occurred)
Turn AFCI to “ON” position. Observe LED indications and compare to
chart below:
LED indications will appear for 5 seconds each time the AFCI is turned
“ON.” Display will appear each time the AFCI is reset up to 30 days after
last trip.