Powersolve ESB101 Series - Manual (Page 4)

Powersolve Electronics Ltd. Unit 8A, Arnhem Road, Newbury. RG14 5RU. United Kingdom p.4/4 12.12D
Phone 0044(0)1635 521858 - Fax 0044(0)1635 523771 – www.powersolve.co.uk – [email protected]
(Subject to alterations. This product is not designed to be used in applications such as life support systems wherein a failure or malfunction could result in injury or death)
Design-In of the ESB101 into A.C. Networks
The ESB101 models are the precise inrush current limiter with an overall tolerance of ±6% of the face value. For the
dimension of an upstream connected circuit breaker the R.M.S is the key value of the inrush current, not the peak
current. The thermal trigger point will not be met, even while using an extreme fast CB. All-dominant is the magnetic
trigger current. By using the empirical formula I
(peak)
x 0,707
(factor)
= I
(r.m.s.)
the tripping current can be defined fairly exact.
Bear in mind that all the higher the inrush current is, all the faster the input capacitor of a number of connected switch
mode power supplies will be loaded. Deduced by this fact we can say that within a 230V 16A A.C. network not the
ESB101.16 limiter is the right selection for a CB B16A, but the ESB101.LED.230Vac. The technical table on page 2 shows
the R.M.S value of all the ESB101 types and models.
(Fig.5 limiting time T
on
) (Fig.7 inrush without ESB101)
(Fig.6 AC dump detection T
off
) (Fig.8 inrush with ESB101)
Mechanics:
IP20 housing (ABS UL94V-0) DIN 43880 with IEC standardized ventilation slots. Save fix on DIN-Rail TS35mm
DIN/EN60715. It is designed for building cabinets DIN/VDE0603. Easy to wall mount by multifunctional housing; remove
the DIN-Rail latch and access the two mounting holes to screw the ESB101 to any old surface.
(Fig.9 mechanical drawing) (Fig.10 mounting restriction)
C
O
N
V
E
C
T
I
O
N
t
on
Fig.7 and Fig.8
Fig.7 and Fig.8 show the typical start
behaviour of a NTC protected switch
mode power supply. The used test
item is a CAMTEC HSE10001.24T with
an output of 24V/42A (1008W) on
DIN-Rail.
The peak current recordings show
the precise limiting of the inrush
from formerly 62A
peak
to 16A
peak
. The
corresponding R.M.S level, that is
responsible for the magnetic tripping
of the CB, is mark down by factor
0,707. After the time T
on
elapsed it is
identified that the power supply
starts neatly into the continuous
operation mode. Now the current is
absorbed pulse-shaped from the AC.
In detail the full load R.M.S. current
consumption level of the HSE10001
hits 9A @ 230Vac.
62A
peak
16A
peak
230Vac
230Vac