Zte CPC-60 User manual
Owner’s Manual
Product: DC-DC Step Down Converter
Model: CPC-60
Thank you for purchas ng a Canad an Power Convers on product.
Please read th s manual before operat ng th s converter.
INSTRUCTION MANUAL
24 VDC TO 12VDC CONVERTER - MODEL NO. CPC-60
CPC-60 s a 24 VDC (nom nal) to 12 VDC (nom nal) dc-dc converter based on a
h gh performance f xed frequency power sw tch ng regulator. It s des gned to
del ver a max mum current of 60 A at a dc voltage of 13.8 VDC.
Features:
H gh eff c ency sw tch ng regulator
Small s ze and l ght we ght
Cycle by cycle current l m t ng
Over voltage , short c rcu t and reverse polar ty protect ons
2 temperature controlled fans for cool ng
INSTALLATION AND OPERATION:
General nstallat on requ rements
-The CPC-60 needs to be nstalled n a dry, cool, protected and well
vent lated area
-The un t may be nstalled on the top of or the bottom of a hor zontal
surface. It can also be nstalled hor zontally on a vert cal surface. (Fans
should not be po nt ng up or down)
-The un t has temperature controlled fans for cool ng. The suct on and
d scharge open ngs on the s des should not be blocked.
*Note: The fan w ll only come on f the un t gets hot.
Input and output connect ons
The CPC-60 has a term nal block w th 3 x M-6 bolt & nut connect ons. One s for
pos t ve 24 VDC nput (marked INPUT), one for common negat ve for nput and
output (marked MINUS) and one s for pos t ve 13.8 VDC output (marked OUTPUT).
CAUTION !
Please ensure that the polar ty of the nput connect on s not reversed.
Always connect the pos t ve of the 24 V battery to the pos t ve term nal marked
INPUT and the negat ve term nal to the common negat ve term nal marked
MINUS. If there s a reverse polar ty connect on, the fuse ns de un t w ll blow.
S z ng of nput and output conductors.
Conductors have res stance that opposes the current flow and produces a
voltage drop and heat ng. The res stance s d rectly proport onal to the length of
the conductor and s nversely proport onal to the th ckness. Consequently, a
longer and th nner conductor w ll have h gher res stance and w ll produce a
h gher voltage drop and more heat ng. The s ze of a conductor for a part cular
appl cat on w ll depend upon the max mum current t s requ red to carry and for
what d stance. The s ze of a conductor s des gnated by AWG (Amer can W re
Gauge) number. The smaller the AWG number, the th cker the conductor. The
conductors should be s zed for a max mum voltage drop of 2%. The cables
should be mult -stranded nsulated copper cable rated for at least 90 º C and
preferably o l res stant. To purchase cables, please v s t a weld ng or mar ne
supply store.
Cables for 24 VDC nput and 12 VDC output connect ons.
The cables on the 24 VDC nput s de must be able to carry a max. current of
approx 70 A. To l m t voltage drop to 2%, use # 4 AWG for d stance up to 6 ft. and
# 2 AWG for up to 10 ft. Use r ng type of term nals for M-6 bolt on the ends of the
cables to enable connect on to the M-6 bolts of the term nal block.
External fuses on the nput and output s des.
The nput and output connect ons should be made through 32 V, 30A fast blow
fuses (For example “2 p eces of Bussmann” Type ATC-30 or ATM-30 automot ve
type fuses n parallel or 1 p ece of Type MAX-60). The fuses should be connected
n ser es w th the pos t ve nput and output cables. The fuse on the 24 V nput s de
should be as close to the battery pos t ve term nal as poss ble. Th s w ll prevent
the poss b l ty of overheat ng & melt ng of the nput s de cables n case of short
c rcu t on the nput s de cabl ng (A battery can prov de very large currents dur ng
short c rcu t cond t on)
WARNING:
The warranty w ll be vo ded f the above external fuses are not used
Battery Charg ng
The CPC-60 can also be used as a 13.8 VDC battery charger. It can charge a 12V
starter or anc llary battery from a 24V system.
SPECIFICATIONS
Input to output solat on Not solated
Input voltage 20 to 35 VDC
Output voltage 13.8 VDC ± 0.1 V
Output voltage regulat on < 3%
Input current at no load Approx. 50 mA
Output current
Cont nuous 60 A
Current l m t * 70 A
*Note: In current l m t cond t on, the output voltage w ll drop f the current drawn ncreases beyond the current
l m t value of 70 A
Output r pple and no se less than 50 mV RMS
Eff c ency Approx. 92%
Operat ng amb ent temperature -20 to +30oC(derate l nearly to 0 at 70º C)
Hum d ty Max. 95%, non condens ng
Protect ons:
- Overload By current l m t ng
- Over heat ng Drop n output voltage
- Reverse polar ty Fuse protect on, 30 A
- Over voltage Var stor (also protects aga nst load dump)
Input s de fuse 60 A (2 p eces of 32V, 30A n parallel)
Safety and EMC Standards:
- Em ss on EN50081-1
- Immun ty EN50082-1
- Automot ve d rect ve 95/45/EC
Input / output connect ons Term nal Block – (M6 Bolt & Nut)
We ght 2.6 lbs / 1.2 Kg
D mens ons (H x W x D) 3.6” x 3.5” x 7.0”(93 x 90 x
177mm)
Warranty 5 years
NOTE: Spec f cat ons are subject to change w thout not ce
CAUTION!
: THERE IS NO ISOLATION BETWEEN THE INPUT AND THE OUTPUT. INPUT AND
OUTPUT HAVE A COMMON NEGATIVE
Table of contents
