60
UTD.123.2019-10.00_EN
11 - Accessories
IMPORTANT.
Rossi has the right to supply interchangeable probes such as functional technical specifi
cations and connections, but with slightly modifi ed case dimensions.
The probes (temperature probe, level probe) are an integrating part of safety system and must be
connected to control devices of category to ISO 13849-1
.
Control devices must work independently from electric power devices, needed for the operation. Follow the
"fail+safe principle" for above mentioned devices.
Control device and/or connection logics must be realized with a locking system avoiding the accidental
restart of operation, in case of stop
11.1 - Heater
Oil heater for starting the gear reducer at low temperature,
design ATEX II 2G EExd IIC T4
.
When
the gear reducer is supplied in 2G and 2D design is equipped with ATEX oil temperature probe as
standard
(see ch. 11.2) for piloting of the heater and the check of gear reducer; for gear reducer design
3GD the oil temperature probe is Buyer's responsibility.
The heater is piloted through proper control device releasing when achieving the pre-set oil temperature.
IMPORTANT.
The data stated in the table refer to
mounting positions B3
and
B8
; for other mounting
positions, consult us.
Features:
– specific power 2W/cm
2
;
– single-phase supply 230 V 50-60 Hz or three-phase
Δ
230 Y 400 V 50-60 Hz (see table 11.1.1);
– metallic terminal box; cable gland protection IP 65;
– Horizontal mounting with oil bath lubrication;
–
thermal safety sensor with manual reset
.
Set the operating threshold of heater at 50 °C and the reset threshold at 30 °C. In case of running at
T
amb
< 0 °C, consult us.
Gear reducer
size
A
B
C
F
S
X
P
KK
Supply
≈
≈
W
125
85
85
85
G 1”
85
85
200
Pg 11
1~ 230 V 50-60 Hz
140
100
85
100
160
125
114
114
G 1" 1/4
400
180
100
125
200
150
146
146
G 1" 1/2
90
600
Pg 13
3~
Δ
230 Y 400 V 50-60 Hz
225
140
155
250
200
170
170
G 2”
1000
280
170
235
320, 321
250
235
235
1400
360
222
318
400, 401
340
95
–
90
85
2100
Single-phase
connection
Three-phase
connection Y
Three-phase
connection
Δ
B3
B8
I, CI
2I, 3I, C2I
Tab. 11.1.1 - Heater