Edwards Signaling B-KME-8130 - Manual

P-047550-1609 ISSUE 6 © 2003
Installation Instructions for Catalog Series
B-KM-8130 and B-KME-8130 Explosion Proof Horns
Description
The Edwards Catalog Series B-KM-8130 and B-KME-8130 (Pro-
jector Units) are intermittent duty explosion proof horns that are
ideal for use as call signals in hazardous atmospheres where ex-
plosion proof and dust tight features are required. The unit is UL
and cUL listed for installation in Class I, Division 2, Groups A and
B Temp. Code T4A (248F, 120C); Class I, Divisions 1 and 2, Groups
C and D; Class II, Divisions 1 and 2, Groups E, F and G; and Class
III, Divisions 1 and 2 hazardous locations.
Electrical Specifications
Intermittent Duty Cycle ................... 5 minutes on/5 minutes off
1. Mount the horn assembly securely to a flat surface in the
desired location with (2) screws through the 3/8" (9.5 mm)
diameter holes in the housing. See Figure 1.
2. Install conduit in 1/2" (12.7 mm) NPT tapped hole in side of
housing.
NOTE: Conduit runs must have a sealing fitting connected
within 18 inches of the enclosure.
3. Connect wires (2 for B-KM Series or 4 for B-KME Series)
using wire nuts (supplied) in accordance with applicable local
codes (Figure 2).
4. For B-KM-8230 Series, connect green ground wire to external
ground.
Maintenance
AC Grill Model -- Alternating Current, 60 Hz*
Coil
Resistance
Cat. No. Voltage Current (A) VA (ohms)
B-KM-8130-G5 24V AC 2 48 1
B-KM-8130-N5 120V AC 0.45 54 24
B-KM-8130-R5 240V AC 0.2 48 103.2
B-KME-8130-NR5 120V AC 0.45 54 24.4
240V AC 0.25 60 98
*The low capacity of bell ringing transformers make them unsuitable for
use with low voltage signals. Signaling transformers are required.
Installation
WARNING
To reduce the risks of electrical shock and ignition of
hazardous atmospheres, do not apply power until the
unit installation has been completed and unit is
tightly assembled and secured.
These products are intended to be installed in accordance with the
applicable requirements in the latest editions of either the Na-
tional Fire ProtectionAssociation publication NFPA 70, the Na-
tional Electrical Code, or the Canadian Standards Association
publication C22.1-02, the Canadian Electrical Code, Part I, and in
accordance with the local authorities having jurisdiction.
1. Check and inspect the unit at least once a year for damage or
wear.
2. Inspect all electrical and mechanical components to see if
there is any internal corrosion or wire discoloration.
CAUTION
When reassembling fixture, make certain that the
threads and taper joint between housing and brass
cover are clean.
WARNINGS
To reduce the risk of equipment damage and ignition
of hazardous atmospheres, keep the assembly tightly
closed when circuits are energized.
Ensure that all power is off before performing main-
tenance.
Figure 1. Single Projector Unit (B-KM-8130 Series)
Cheshire, CT 06410 203-699-3300 (Ph)
203-699-3365 (Cust. Serv. Fax)
203-699-3078 (Tech. Serv. Fax)