6
Technical features
*Only for C4 corrosion class. For critical environmental conditions please contact COMEM (
).
170SB
Remove the duct cover (fig.3/5) unscrewing the 4 screw
M6x40 (fig.3/6). Insert the multi-polar cable through the cable
gland (fig.3/8) (remove it if necessary) and make the con
-
nection on the terminal box (fig.3/9) with the relevant electric
diagram (fig.6 e fig.7)
Dangerous electrical voltages!!!
It is imperative to deactivate the power supply during wiring of
the device.
Electrical connections may only be carried out by qualified,
skilled personnel trained in the applicable health and safety
regulations of the relevant country.
WARNING
Connection for 170SC
The locking system ensures safe transportation and must be
removed before powering up the transformer.
Maxumum withtand pressure: 200 kPa
During the terminal box assembly pay attention not to damage
the O-ring gasket (fig.3). If it happened, substitute it.
CAUTION
CAUTION
Figure 6
Figure 7
Material
All the external parts are resistant to transformer oils, salt fog and UV rays.
All the internal parts are die-cast aluminum and AISI316 stainless steel.
The springs are powder coated steel
Flange colour
RAL 7032*
Ambient temperature
-40°C ÷ +100°C (-40°F ÷ 212°F)
Degree of protection
IP67 in accordance with EN60529
Weight
8.5 kg (19 lb)
Ventilation valve
N.1 to prevent the formation of condensation
Cable gland
PG 13.5 or M20x1.5 for each switches
Terminal box
Screw clamp 2.5 mm
2
(0.0038 inc
2
)
Cable
Max 2.5 mm
2
(0.0038 inc
2
)
Micro-switches
From N.1 to N.3 chance over contact
Micro-switches supply
24 V ÷ 230 VAC/DC
Breaking and making capacity
Voltage
Uninterrupted current
(making capacity)
Interrupted current
(breaking capacity)
24 VDC
÷ 230
VDC
2 A
100 mA L/R<40 ms
230 VAC
2 A
2 A cosφ>0.5
ELECTRONIC PRESSURE RELIEF DEVICES 170SB AND 170SC
D
C
B
A
6
5
4
3
2
1
7
8
E
F
A
B
C
D
E
F
1
2
3
4
5
6
7
8
This document is issued by means of a computerized system. The digitally stored original is electronically approved. The approved document has a date entered in the `Approved'-field. A manual signature is not required.
DRAWING SHEET ISO 5457: 1999-A3T
We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly fobidden.
2/3
3
A
Development
NV-402
SHEET
ITER
REV
STATUS
DOCUMENT ID
ITABB-9AAE306693
-
RESPONSIBLE DEPARTMENT
COMEM LPT PER CATALOGO
COMEM
TITLE / SUPPLEMENTARY TITLE
COMPANY
Component Drawing
-
PROJECT ID
WORK ORDER ID
BASED ON DOC ID
DOCUMENT KIND
APPROVED ON
-
-
Diego Boro
APPROVED BY
REVIEWED BY
CREATED BY
© COPYRIGHT ALL RIGHTS RESERVED
