Electrical Installation
30
ELECTRICAL INSTALLATION
(continued)
EN61010 - /CSA 22.2 No 1010.1 92
Compliance shall not be impaired when fitted to the
final installation.
Designed to offer a minimum of Basic Insulation only.
The body responsible for the installation is to ensure
that supplementary insulation suitable for Installation
Category II or III is achieved when fully installed.
To avoid possible hazards, accessible conductive parts
of the final installation should be protectively earthed
in accordance with EN6010 for Class 1 Equipment.
Output wiring should be within a Protectively Earthed
cabinet.
Sensor sheaths should be bonded to protective earth
or not be accessible.
Live parts should not be accessible without the use of
a tool.
When fitted to the final installation, an IEC/CSA
APPROVED disconnecting device should be used to
disconnect both LINE and NEUTRAL conductors
simultaneously.
A clear instruction shall be provided not to position
the equipment so that it is difficult to operate the
disconnecting device.
MODEL 3300
TYPICAL CONNECTION DIAGRAM
The SSR driver output is allocated to SP1 and wired to
switch the load (heater) using an SSR
F1 Fuse:
time lag type to IEC127. CSA/UL rating
1A 250Vac
F2 Fuse:
High Rupture Capacity (HRC) Suitable for
maximum rated load current
S1 Switch:
IEC/CSA/UL Approved disconnecting
Device
Comms option
(when fitted)
1
2
3
4
5
6
7
8
L
N
5Vdc 15mA
+
–
+
–
12
13
14
15
16
Sensor
Output
SP1
SP2
Output
SSR
+
–
S1
Sensor
Supply
Line
Open in
alarm
state
3300
9300
9
10
11
Load
F2
F1
Neutral
