ESB101(R2) MANUAL
Camtec Power Supplies GmbH - Gewerbestrasse 30 - DE-76327 Pfinztal / Germany
P.4/7 (06/2016.02.4)
Phone +49 (721) 46596-0 - Fax +49 (721) 46596-77 –
www.camtec-gmbh.com
-
(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)
Special Models ESB101.LED with 115Vac & 230Vac
Compared to all other ESB101-models the LED-types are the universal inrush current limiters. The concept design is
made to construct optimized A.C. networks in the building automation and in the lighting sector. Tripping the installed
circuit breaker will be effectively prevented. The inrush limiting time is adjusted to the values of a typical LED switch
mode power supply or LED-driver. The connectable load capacity is such as high, that even in the extremes cases it is
rather impossible to exceed it in a 16A network. Installed contactors will be relieved and their lifetimes will considerable
increase. To protect the installed relay in a controlled DALI-/DMX-Multiplexer we advise to use the ESB101.23 for a 16A
relay or the ESB101.16 for a smaller relay. Note that the ESB101 is not designed to operate together with gas induction
lamps or other conventional lighting device. The ESB101 is designed for capacitive loads, only.
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 exact. Bear
in mind that all the higher the inrush current is, all the faster the input capacitor of several 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 MCB 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 and Fig.7
Fig.5 and Fig.7 show the typical start behavior
of a NTC protected sample switch mode power
supply. The used test item is a switch mode
power supply 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
circuit breaker (MCB), 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 supply.
In detail the full load R.M.S. current
consumption level of the sample power supply
hits 9,8A @ 230Vac.
62A
peak
230Vac
t
on
16A
peak
230Vac
AC input range
AC input range
Line voltage
line voltage
(Fig.4 limiting time T
on
) (Fig.5 AC dump detection T
off
)
(Fig.8 inrush with ESB101)
(Fig.6 AC dump detection T
off
)
(Fig.7 inrush with ESB101)
(Fig.2 operating range 230Vac) (Fig.3 operating range 115Vac)
