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Eberspaecher 6kW/250-450VDC PTC Heater

High voltage PTC heater that uses an external heat demand to produce a user specified heat
power from 0 to 6kW.

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1 195,00 € tax incl.

71.0300.03.0600

Availability: This product is no longer in stock

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There's nothing quite like having instant heat in your electric vehicle when it's cold outside!

This High voltage PTC heater that uses an external heat demand to produce a user specified heat power from 0 to 6kW. The heater does not automatically maintain water temperature in the coolant circuit, it responds to user demand. Heater is used to replace heat source (IC engine) for HVAC heater matrix when used on electric vehicle or to provide heat source when in electric mode on a hybrid vehicle.

 

Input 250-450VDC from the battery pack.

 

Technical data:  http://www.e-transportation.eu/jn600A_hv_coolant_heater_(print).pdf

 

HV Coolant PTC Heater

 

 

HV Coolant PTC Heater

 

1.    High voltage PTC heater that uses an
external %heat demand to produce a user
specified heat power from 0 to 6kW. The
heater does not automatically maintain
water temperature in the coolant circuit, it
responds to user demand.
2.    Heater is used to replace heat source (IC
engine) for HVAC heater matrix when used
on electric vehicle or to provide heat source
when in electric mode on a hybrid vehicle.
3.    Heater construction – See Figure below.
4.    7 wires to the heater
        a.  HV+ (250-450VDC), typ 350V DC.
        b.  HV-.
        c.  Interlock - In.
        d.  Interlock - Out.
        e.  12V+  (9-16V range), typ 13.2V DC.
        f.   0v (from low voltage 12V supply).
        g.  PWM heat demand signal 12V; active
low (5k internal pull up resistor),  
40-300Hz.
       Heater is supplied with bare cables grouped
as a-d and e-g; single ended cable screens.
5.    Interlock (passive) is used to sense if the
connector is disconnected so high voltage
is not available at the connector for safety.
The interlock is a simple continuity loop.
6.    HV supply to heater needs fusing,
recommendation is 40A.
7.    No water pump is supplied as part of the
heater but can be required if required;  
inlet/outlet of heater is dia 20mm.  
5-30L/min is required (see Ancillary  
Option A).
8.    Either end of heater can be used as the
inlet.
9.    Any orientation for the heater, avoid
mounting at top of water circuit as air lock
likely. Heater will run and control itself even
in the absence of water.
10.  IP69 allows any location chassis mounting.
11.  This is the standard V7.5 heater; there are
no options on it. There are other heaters
options that can use CAN or LIN connectivity
but are not standard and expensive to
develop for customer so unlikely to be
available unless volume production.
12.  Automotive pedigree, the specification
details the comprehensive suite of tests that
have been carried out on the heater that are
typical of large OEM supply.
13.  Safety (for example it conforms to ISO 6469
regarding harness colouring), a PTC style
heater is inherently safer than a resistive
element such that a heater can be run with
no water in it for hours/days and it will
regulate itself both as a function of the PTC
element where self heating reduces power
demand and also on board temperature
sensing on the internal control pcb limits
power and eventually turns heater off where
as a resistive element potential carries on
at full power.
14.  On board electronic control allows
comprehensive suite of fault detection
including watchdog function on micro
controller, over current and short circuit
detection.  If current >30A for more 80ms
or >20A for 3-5 seconds then automatic
power reduction.
15.  Limited fault diagnostics, it is possible to
monitor current when first switched on to
identify the check function on the heater.
If PWM is forced to 0 by the heater then
heater is faulty and requires replacing.
16.  Heater has 4 separate heater banks, 3kW,
1.5kW, 750W and PWM switched 0-750W.
Selection of heater % demand activates
combination of heater banks to achieve
value required.
17.  Regulation, the external heat demand
enables the vehicle to limit the power
demand of the heater so for instance if
the battery is getting low it is possible to
limit the power draw where as the typical
competitive heaters are either on or off.
18.  The heater can also be used for the HV
dissipation of the vehicle HV circuit,
i.e. turning heater on once HV has been
switched off on the vehicle allows the
heater to ‘drain’ the HV from the electrical
circuit of the vehicle so allows safe working
on the vehicle.
19.  To reduce start up current the heater output
increases at a rate of 260ms per % demand,
so 26 seconds to achieve full output.
ANCILLARY OPTIONS
    Water pump: A 12V DC water pump
(P/N 25 2526 25 00 00) is available rated
at 720l/hour which is matched to work with
the controller (option B). Other pumps in 12
and 24V DC are available on request.
    Controller: The heater typically uses a
PWM signal generated by the customer’s
body controller. A separate controller (P/N
291L4501540) is available which generates
the PWM signal from a customer  ‘on/off’
switch on the dashboard and controls the
heater to maintain the water temperature
at 85°C. The controller can also control the
heater to a low level PWM (25 or 50%) via
a user signal if power consumption control
is required, in this case the 85°C may not
be maintained (dependent on the ambient
temperature and heat load requirements).
The controller works with input voltage
9-32V and will power the 12V water pump
(Option A).

Eberspächer Heizung

 

 

 


For adjusting the output power, this heater requires a PWM Controller, which we can additionally supply:

 

Euros 175,-

PWM Controller

PWM Controller

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