Gefran GTS 15A, GTS 25A, GTS 40A, GTS 50A, GTS 60A Data Sheet

Main applications

• Plastic extrusion lines and
injection presses

• Packing and packaging
machines

• Polymerization and
production plants for
synthetic fibers

• Rubber vulcanization plants

• Driers for ceramics and
construction elements

• Chemical and
pharmaceutical industry

• Industrial electric furnaces

• Food processing plants

GTS 15/25/40/50/60/75/90/120A

POWER SOLID STATE RELAYS WITH LOGIC CONTROL Vdc / Vac

Main features

• Control input from VDC/VAC logic
signal

• Switching at voltage zero crossing

• LED power on indicator

• MOV protections (varistor)

• Fastening to DIN bar (standard);
fastening to panel (optional)

• Option alarm output for interrupted load

• Integrated SCR thermal protection with
LED signal (only for models with > 40A
current)

GENERAL

Turning an electric load on or off
requires the use of a suitable inter­rupt and protection device that is
safe and immune to disturbances.

In addition, for optimum process
control in many industrial applica­tions, it is indispensable to drive the
load with very short switching times:
the best solution is the use of solid
state relays.

Gefran proposes the GTS range
of power solid state relays with vol­tage zero crossing, currents from
10A to 120A, and rated voltages of
230Vac, 480Vac and 600Vac.

All models are designed to gua­rantee operation at rated currents,
with continuous driving of power at
40°C ambient temperature.

For less critical operating con­ditions, you can use the products
beyond rated currents (using the
dissipation curves as reference).

Various accessories are availa­ble, such as the attachment for
panel fastening, fuses and fuse
holders.

ALARM OPTION:
for models with AC control
(Input type = “A”)

OPERATING DESCRIPTION

The alarm output option activates
closing of an isolated contact when it
detects the following fault conditions:

• Control signal active but no cur­rent on load (zero current, interrupted
load)

• Control signal active but no power
line voltage (no line)

• Control signal active but SCR /
heatsink is in overtemperature (GTS
thermal protection)

NOTE: in the absence of the control,
the alarm output is always open (the
alarm memory latch function is not
possible, as with GTS with Type “D”
input).

OPTION fuNCTION DESCRIPTION:
for models with DC control
(Input type = “D”)

The Alarm Output Function acti­vates the output switch (or PNP
digital output) when detects the
following situations:

• The control signal is ON, but there
is not current in the Load (No Cur­rent, No Load condition)

• The control signal is ON, but there
is not GTS power Line voltage sup­ply (No Line condition)

• The control signal is ON, but the
SCR / Heat sink is in over-tem­perature (GTS thermal protection
condition)

The alarm output is latched: its
status it is maintained if the Control
signal is switched off, the alarm
output resets when the load cur­rent is restored or when the GTS
24V_supply is switched off and on
(V_supply reset).

The alarm output option is availa­ble as Insulated Solid State Switch
(or as Digital Output PNP), with
Normally open switch (or PNP nor­mally non active) or normally closed
switch (or PNP normally active)
status.

TECHNICAL DATA

W

L

M5

General features

Category of use: AC1
Rated working voltage

- 230Vac (max. range 24...280Vac)

- 480Vac (max. range 24...530Vac)

- 600Vac (max range 24 ... 660Vac)
Rated frequency: 50/60Hz
Non-repetitive voltage:

• 500Vp for model with rated voltage

230Vac

• 1200Vp for model with rated voltage

480Vac

• 1400Vp for model with rated voltage

600Va
Switching voltage for zero: < 20V
Activation time: = 1/2 cycle
Deactivation time: = 1/2 cycle
Potential drop at rated current:

= < 1.4Vrms
Power factor = 1

Control inputs

- DC INPUT (Type “D”):
Max. input: < 10mA @32V
Max. reverse voltage: 36Vdc
Control voltage: 6...32Vdc
Activation voltage: > 5.1Vdc
Deactivation voltage:< 3Vdc

- AC INPUT (Type “A”):
Control voltage:

20...260 (250)* VAC/VDC
* CSA certification
INSTALL FUSE (3A MAX) ON THE
CONTROL INPUT CIRCUIT
Activation voltage:
> 15 Vac / Vdc
Deactivation voltage:
< 6 Vac / Vdc
Current draw:

<= 8 mAac/dc @ 260 Vac/Vdc

Outputs

GTS 15

Rated current:15 A@40°C in conti­nuous service
Non-repetitive overcurrent t=20 ms:
400A
I2t for blowout: ≤450A2s
dV/dt critical with output deactivated:
1000V/µs

GTS 25

Rated current: 25 A@40°C in conti­nuous service
Non-repetitive overcurrent t=20 ms:
400A
I2t for blowout: ≤645A2s
dV/dt critical with output deactivated:
1000V/µs

GTS 40

Rated current: 40 A@40°C in conti­nuous service
Non-repetitive overcurrent t=20 ms:
600A
I2t for blowout: ≤1010A2s
dV/dt critical with output deactivated:
1000 V/µs

GTS 50

Rated current: 50 A@ 40°C in conti­nuous service
Non-repetitive overcurrent t=20 ms:
1150A
I2t for blowout: ≤6600A2s
dV/dt critical with output deactivated:
1000V/µs

TEMPLATE DIMENSIONS

GTS 60

Rated current: 60 A@ 40°C in conti­nuous service
Non-repetitive overcurrent t=20 ms:
1150A

2

t for blowout: ≤6600A2s

I
dV/dt critical with output deactivated:
1000V/µs

GTS 75

Rated current: 75 A@ 40°C in conti­nuous service
Non-repetitive overcurrent t=20 ms:
1300A
I2t for blowout: ≤8000A2s
dV/dt critical with output deactivated:
1000V/µs

GTS 90

Rated current: 90A@ 40°C in conti­nuous service
Non-repetitive overcurrent t=20 ms:
1500A
I2t for blowout:≤11200A2s
dV/dt critical with output deactivated:
1000V/µs

GTS 120

Rated current: 120A@ 40°C in con­tinuous service (complete with fan
standard)
Non-repetitive overcurrent t=20 ms:
1500A
I2t for blowout: ≤11200A2s
dV/dt critical with output deactivated:
1000V/µS

Option:
Load or line failure alarm option has a
solid state output switch or PNP digi­tal output (max ratings: 30V - 150mA
conduction resistance 15ohm)

Maximum delay in tripping of load inter­rupt alarm < 400ms
Maximum length of wires between GS
and load for correct operation of load

diagnostics < 25m

L

(mm)

GTS 15-25 112 0

GTS 40 112 25

GTS 50-60 112 44

GTS 75-90-120 112 113

W

(mm)

THERMAL PROTECTION

(only on GTS models with > 40A
current):

The SCR module’s temperature is

constantly monitored inside the devi­ce.
When the maximum temperature
threshold (T=110°C) is exceeded,
current flow to the load is interrupted
and the condition is signaled by ligh­ting of the yellow thermal protection
LED.

Isolation

Rated isolation voltage
input/output: 4000VAC rms

Ambient conditions

• Working ambient temperature:
da 0 a 80°C (according to dissipa­tion curves)

• Max. relative humidity: 50% at
40°C

• Max. installation altitude:
2000m asl

• Pollution level : 2

• Storage temperature: -20..+85°C

Installation notes

Use the high-speed fuse specified in
the catalog according to the connec­tion example given.

- Applications with solid state power
units must also include an automatic
safety switch to cut out the load power
line.
For maximum reliability, it is essential
to install the device correctly in the
panel in order to have adequate heat
exchange between the sink and the
surrounding air by natural convection.
Install the device vertically (max. 10°
inclination to vertical axis)

• Vertical distance between a device
and panel wall >100mm

• Horizontal distance between a devi­ce and panel wall: at least 20mm

• Vertical distance between one
device and another: at least 300mm.

• Horizontal distance between one
device and another: at least 20mm.
Make sure that the cable channels
do not reduce such distances; if so,
install the groups cantilevered to the
panel so that air can flow vertically on
the heat sink without obstructions.

Limits of use

• dissipation of thermal power of devi­ce with restrictions on temperature of
installation site.

• requires exchange with outside air
or an air conditioner to transfer dissi­pated power outside the panel.

• installation restrictions (distances
between devices to guarantee dissi­pation by natural convection)

• max. voltage limits and derivative of
transients in line, for which the solid
state unit has internal protection devi­ces (depending on model).

• presence of leakage current < 3mA.
(max. value with rated voltage and
junction temperature of 125°C).

DIMENSIONS AND MOUNTING MEASUREMENTS

Depth = 107 mm.
Weight = 320 g.

Depth = 142 mm.
Weight = 540 g.

Depth = 142 mm.
Weight = 900 g.

(without fan)
(without fan
(with fan)

Depth = 142 mm.
Weight = 1200 g.

Depth = 142 mm.
Weight GTS 75-90 = 1300 g.
Weight GTS 120 = 1700 g.

• The “ON” LED is red with the control active and yellow if the thermal protection trips.

• The “AL” LED is available only with alarm output option

DESCRIPTION OF FACEPLATE

FRONT VIEW (Internal):

(Models with current > 40A)

- Red: ON SCR condition

- Yellow: SCR OverTemperat.
(Thermal protection is active,

- Blank: No Input command

Control & I/O
connection

“ON” Led indication:

SCR is OFF)

“AL” Led indication (*) :

- Red: Alarm Output active

- Blank: No Alarm Output

Load

connection

Description of I/O control terminals (GTS > 40A)

Ref. Description Notes for type “D” input Notes for type “A” input

1 Not used

Control input GND

2

ON/OFF

+ Control input

3

ON / OFF

VDC

4 (*)

Supply

5 Not used

6 (*) Alarm output

7 (*) Alarm output

8 Not used

VDC input GND
(Supply GND in case of option)

Range da 6 a 32Vdc, Imax = 10 mA
(1 mA with alarm option)

Supply of optional functions
(Range from 6 to 32 Vdc, Imax < 15 mA)

With Options 1-2:
solid state contact
Imax = 150 mA
Vmax = 30 Vac/dc

Z_closed < 15 Ω
Z_open > 1 MΩ

With Options 3-4:
Terminal 6 is internally connected to termi­nal 4 (Vdc_Supply)

With Options 3-4:
Terminal 7 is PNP digital output (+)
Imax = 150 mA

Line
connection

VAC/VDC input
(Range 20 to 260Vac/Vdc, Imax < 8 mA)

Not used

With Options 1:
solid state contact
Imax = 150 mA
Vmax = 30 Vac/dc

Z_closed < 15 Ω
Z_open > 1 MΩ

(*) Optional

STATE LED DESCRIPTION

“AL” Led is available only with output alarm Option

LED COLOR STATUS LED COLOR STATUS LED COLOR STATUS

ON Blank

AL Blank AL Blank AL Red

LED COLOR STATUS LED COLOR STATUS

ON Blank

AL Red AL Red

SCR OFF, No Alarm

SCR OFF, Alarm Output active (alarm stored)

(State possible only with GTS with type “D” input

and with option)

ON Red

SCR ON,
No Alarm

ON Yellow

ON Red

Control signal ON,

OverTemperature Protection, SCR is OFF,

Alarm output is active

“ON” Led is standard

SCR ON, Alarm Output

active

Note: