their associated transducers. A second power supply in the
same rack is never required.

The Power Supply is installed in the left-most location (position 1) in a 3300
Rack. Primary voltage operation can be ordered for 20 to 34 Vdc or 90 to 140
Vdc inputs, which are converted for use by the monitors installed in the rack.

The 3300 dc Power Supply has over-voltage and under-voltage protection
circuitry to shut down the Power Supply should the input supply voltage fall
out of the specified range. It will return to normal operation when the input
voltage is within the specified range. In addition, the Power Supply is fuse-
protected against reverse polarity power hookup and power inputs of greater
than 140% of the maximum rated input voltage.

Warning
A transducer field wiring failure, monitor failure, or loss of primary power can
cause loss of machinery protection. This could result in property damage
and/or bodily injury. Therefore, we strongly recommend connection of an
external annunciator to the OK relay terminals.



Specifications


Inputs



Power:
20 to 34 Vdc, 5.5 A max. 90 to 140 Vdc, 1.5 A max.

Fuse Rating:
20 to 34 Vdc, 8 A max. 90 to 140 Vdc, 2 A max.


Outputs



Transducer Power
(internal to rack):
User-programmable for -24, +1.3%, -1.7% Vdc; or
-18, +1.6%, -2.2 % Vdc. Transducer voltages are
overload protected, per channel, on the individual
monitor circuit boards.



R BN
Part
Number
141497-01
Page
2
of
3
Revision G, March 2004

OK Relay



Location:
Behind the Power Supply, in the
Power Input Module.


Type:
Single-pole, double-throw (SPDT).


Environmental
Sealing:


Hermetically-sealed.
Contact Ratings
(resistive load):
5 A at 28 Vdc;
5 A at 120 Vac, 50/60 Hz;
3 A at 220 Vac, 50/60 Hz.


Ratings for systems
requiring agency
approval:
5 A at 28 Vdc;
5 A at 120 Vac, 50/60 Hz,
(30 Vac for ATEX).


Contact Life:
10,000 cycles minimum at rated
load.


Operation:
normally energized



Environmental Limits


Operating
Temperature:
0°C to +65°C (+32°F to +150°F).


Storage Temperature: -40°C to +85°C (-40°F to +185°F).


Relative Humidity:
To 95%, noncondensing.



CE Mark Directives

EMC Directive
Low Voltage Directive



Certificate of Conformity: 158710
Certificate of Conformity: 135300


Hazardous Area
Approvals




CSA/NRTL/C

ATEX

Class 1, Division 2 Groups A,B,C,D
T4 @ Ta = 65
°C
EEx nC IIC
T4 @ Ta = 60
°C for AC power
T3 @ Ta = 60
°C for DC power



Physical



Space Requirements:
One rack position. Installs only in
position one (left-most position, next
to the System Monitor).


Weight:
2 kg (4.4 lbs.).

Ordering Information

For spares, order the complete catalog number as described
below. This includes a front panel assembly, power supply
PWAs with sheet metal, and appropriate input module. This
unit is optioned, tested and ready to install in your system.
Spare power input modules (PIM) can be ordered separately.


dc Power Supply
3300/14-AXX-BXX-CXX
Option Descriptions


A: Input Voltage
Option
0 1 +26 Vdc(+20 Vdc to +34 Vdc)
0 2 +120 Vdc(+90 Vdc to +140 Vdc)


B: Power Input
Module Option
2 0 Standard
2 2 Internal Safety Barriers
2 3 Spare supply only-No PIM


C: Agency Approval
Option
0 0 Not required
0 1 CSA/NRTL/C
0 2 ATEX self certification



Note: ATEX approval requires the monitor
rack be installed in a weatherproof housing.
Spare Parts:

161957-AXX-BXX-
CXX

01720029
01702000
01710510
01710511


Power Input Module (PIM) Assembly-
dash options same as above

250V, 1.50 A Fuse(A=01,C=00,01)
250V, 0.75 A Fuse(A=02,C=00,01)
250V, 2.50 A Fuse(A=01,C=02)
250V, 1.25 A Fuse(A=02,C=02)



Field-programmable Options


These options are field-programmable via plug-in jumpers.
Bold text indicates options as shipped from the factory.


Transducer Output
Voltage
-24 Vdc
-18 Vdc



Note: Contact your nearest Bently Nevada
Sales Professional if 3000 Series transducers
are to be used in a monitoring rack which
also uses 3300 and/or 7200 Series
transducers.


Accessories



128112
02245002
02200214

Galvanic Isolator Kit
External Barrier
Surge Protector

BN
Part
Number
141497-01
Page
3
of
3
Revision G, March 2004

1999-2004 Bently Nevada LLC
used in this document are registered marks of Bently Nevada LLC

Field wiring diagram
3300/14 dc Power Supply





Primary power connections for 3300/14 dc Power Supply
(Standard PIM shown)