SIEMENS
2/13
Siemens D 83.1 · 2016
2
Motors with Explosion Protection
SIMOTICS XP 1MD5 motor series
General information
■
Technical specifications
(continued)
Auxiliary terminal box
Degree of protection: IP55
Type of protection:
Ex e II, alternatively Ex d IIC acc. to EN 60079-0/EN 60079-1/EN 60079-7
Enclosure material:
Cast-iron
Explosion-proof terminal boxes with a cast auxiliary terminal box only (max. 12
×
4 mm
2
),
for number and size of entry threads, see "Cable glands" table.
Standard connection of anti-condensation heater and
monitoring devices in the motor terminal box:
•
Accessories (heater, motor monitor) are connected in the main
terminal box as standard in frame sizes 71 to 355. Exception:
In frame size 355, an auxiliary terminal box must always be
ordered.
•
Due to the terminals required in the terminal box, an auxiliary
terminal box is always required when ordering Pt100
resistance thermometers as monitoring devices for the
bearing or winding.
Assignment of the various possible additional / auxiliary terminal
boxes for 1MD5 motors:
•
1MD5 motor: Auxiliary terminal box – order code
W72
•
1MD5 motor + order code
M13
(anti-condensation heater
210 to 250 V):
Auxiliary terminal box – order code
M52
•
1MD5 motor + order code
K53
(explosion-proof main terminal
box, Ex d IIC):
Auxiliary terminal box – order code
V43
Connection of the anti-condensation heater and monitoring
devices when ordering additional / auxiliary terminal boxes
(order code
M52
,
W72
,
V43
):
•
When ordering an anti-condensation heater (order code
M13
)
or monitoring devices, e.g. motor protection with
PTC thermistor (order code
A11
,
A12
,
A15
,
A16
) and/or a
Pt100 resistance thermometer (order code
A42
,
A62
),
the connection is made in the auxiliary terminal box.
•
When ordering an anti-condensation heater in combination
with monitoring devices, the monitoring devices are
connected in the auxiliary terminal box and the anti-
condensation heater is connected in the main terminal box.
•
If there are two auxiliary terminal boxes, anti-condensation
heater and monitoring devices are each placed in separate
auxiliary terminal boxes.
Frame size
Standard terminal box
Main terminal box
Auxiliary terminal box
Max. auxiliary connections
Fig. No. on Page 2/11
Design
Max. connections
1)
(number × max. cross-section)
mm
71
2
Fig. 1
–
–
80
90
100
112
132
6
Fig. 2
Cast
6 × 2.5
160
180
12
Fig. 2
Screwed on
12 × 4
200
225
250
20
Fig. 3
Screwed on
36 × 4
280
315 L
36
Fig. 4
Screwed on
42 × 4
355
1)
Rated voltage/max. working voltage 400 V/440 V.
© Siemens AG 2016