Power Pack
SPECIFICATIONS:
Voltages: . . . . . . .
Load Requirments:
Ballast . . . . . . .
Incandescent . .
Motor . . . . . . . .
. . . . . 120 and 277VAC 60Hz
. . . . . 20amp @120/277VAC
. . . . . 20amp @120VAC
. . . . . 1HP @120/240VAC
Output: . . . . . . . . . . . . . . 150mA @24VDC
(with relay connected)
Low Voltage Inputs . . . . . Control On 5-24VDC
Hold On 5-24VDC
Hold Off 5-24VDC
Operating Temperature . .32°-131°F (0-55°C)
Santa Clara, CA 95050
1(800) 879-8585
Installation Instructions
BZ-100E-P
WARNING:
TURN THE POWER OFF AT THE CIRCUIT BREAKER
BEFORE INSTALLING POWER PACKS
ONLY QUALIFIED ELECTRICIANS SHOULD ATTEMPT TO
INSTALL WATT STOPPER POWER PACKS
DESCRIPTION:
The BZ power pack is the foundation for any low voltage
lighting control system. The BZ supplies low voltage power to
occupancy sensors and other control devices, switching line
voltage in response to signals from control devices. The BZ
power pack is attached to existing junction boxes or mounted
into fixture wiring trays.
Low voltage wiring should use at least 22-gauge wire, high
voltage connections should use at least 14-gauge. Always
check local building codes. After initial wiring is complete,
check wiring diagram to verify power pack is wired correctly.
Improper wiring can cause damage to power pack, lighting
system, and occupancy sensor.
INSTALLATION
Wiring Diagrams:
White
Neut.
Power Pack
Lighting
Load
Red
Switch
Black 120VAC
Red
Yellow
5-24VDC In Brown
Hold Off
Red
5-24VDC In
Hold On
Blue
Brown 277VAC
Black
Hot
+24VDC
Common
Control Output
Any 3-Wire
24VDC
Sensor
Installation Notes:
1. Power packs should be installed in accordance with state,
local and national electrical codes and requirements.
2. Power packs are designed to attach to existing or new
electrical enclosures with 1/2 inch knockouts.
3. Most applications require UL listed, 18-22 AWG, 3conductor, Class 2 cable for low voltage wiring. For plenum
return ceilings, use UL listed plenum-approved cables.
CAUTION:
CONNECT ONLY THE POWER SUPPLY WIRE FOR VOLTAGE
USED. INSULATE/CAP UNUSED POWER SUPPLY WIRE
OPERATION:
Low Voltage Inputs:
Three +5-24VDC maintained inputs are provided with the
following functionality:
1. Control ON (Blue Wire) – Applying 5-24VDC to this input
closes the relay. Remove the voltage and the relay returns
to its normal state. This input is intended for sensor or
control device input
2. Hold ON (Yellow Wire)- Applying 5-24VDC to this input
closes the relay. Remove the voltage and the relay returns
to its normal state. This input is intended for timer or panel
input and overrides the Control ON input.
3. Hold OFF (Brown Wire)- Applying 5-24VDC to this input
opens the relay. Remove the voltage and the relay can
accept input from either the Control On or hold on inputs.
This input is intended for timer, panel input, or load shed
signals and overrides the Control ON/Hold ON signal input.
Over Current Protection:
If the current drawn from the BZ exceeds 150mA (i.e. there are
too many sensors per power pack) the +24VDC output will be
turned off. The LED will continuously blink to indicate that the
Over Current Mode has been activated. Upon removal of fault
condition, the BZ will not attempt to restore the power for 10
seconds after an over-current event. This protection also
applies if the low voltage outputs are shorted.
LED Indicator:
The LED will indicate when the load is active with a continuous
red light and will indicate when the current limit of the BZ has
been exceeded by blinking continuously.
ORDERING INFORMATION:
Catalog
Number
Description
Input
Voltage
BZ-100E-P Power Pack 120/277VAC
60Hz
Load Ratings
Ballast (A) Incan. (A) Motor (hp) Output
20
20
1
24 VDC, 150 mA
(w/relay connected)
WARRANTY INFORMATION
The Watt Stopper®, Inc. warranties its products to be free of defects in
materials and workmanship for a period of five years. There are no
obligations or liabilities on the part of The Watt Stopper, Inc. for
consequential damages arising out of or in connection with the use or
performance of this product or other indirect damages with respect to
loss of property, revenue, or profit, or cost of removal, installation or
reinstallation.
Putting a Stop to Energy Waste®
Santa Clara, CA 95050 1(800)879-8585 1(972)578-1699
02237r1 6/02