Motor and Machine Protection
B59355
M 355
Applications
q
Thermal protection of winding in electric motors
Features
q
Thermistor pellets with insulating encapsulation in series connection (triple sensor)
q
Silver-plated and Teflon(PTFE)-insulated AWG 26 litz wires
q
Trip temperature coded in litz wire color,
connecting wires all in black
q
Characteristics for nominal threshold temperatures of 90 bis 160
°C
conform with DIN 44 082
q
Can be used in conjunction with Siemens tripping units 3UN6 to 3UN9
Max. operating voltage
(T
A
= 0 … 40
°C)
V
max
Max. measuring voltage
(T
A
– 25 K …
T
NAT
+ 15 K)
V
Mes,max
Rated resistance
(V
PTC
≤
2,5 V)
R
N
Insulation test voltage
V
is
Response time
t
a
Operating temperature range (V = 0)
T
op
(V =
V
max
)
T
op
Type
30
7,5
≤
300
2,5
<5
– 25/+ 180
0/40
V
V
Ω
kV ac
s
°C
°C
T
NAT
± ∆
T
°C
60
±
5
70
±
5
80
±
5
90
±
5
100
±
5
110
±
5
120
±
5
130
±
5
140
±
5
145
±
5
150
±
5
155
±
5
160
±
5
170
±
6
180
±
6
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
R
(T
NAT
–
∆
T)
(V
PTC
≤
2,5 V)
Ω
≤
1710
≤
1710
≤
1710
≤
1650
≤
1650
≤
1650
≤
1650
≤
1650
≤
1650
≤
1650
≤
1650
≤
1650
≤
1650
≤
1650
≤
1650
R
(T
NAT
+
∆
T)
(V
PTC
≤
2,5 V)
Ω
≥
1710
≥
1710
≥
1710
≥
3990
≥
3990
≥
3990
≥
3990
≥
3990
≥
3990
≥
3990
≥
3990
≥
3990
≥
3990
≥
3990
≥
3990
R
(T
NAT
+ 15 K)
(V
PTC
≤
7,5 V)
Ω
—
—
—
≥
12 k
≥
12 k
≥
12 k
≥
12 k
≥
12 k
≥
12 k
≥
12 k
≥
12 k
≥
12 k
≥
12 k
≥
12 k
≥
12 k
R
(T
NAT
+ 23 K)
(V
PTC
≤
2,5 V)
Ω
≥
30 k
≥
30 k
≥
30 k
—
—
—
—
—
—
—
—
—
—
—
—
140
Siemens Matsushita Components
B59355
M 355
Dimensions in mm
Type
Color coding
of litz wires
white/grey
white/brown
white/white
green/green
red/red
brown/brown
grey/grey
blue/blue
white/blue
white/black
black/black
blue/black
blue/red
white/green
white/red
Ordering code
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
M 355
B59355-M60-A70
B59355-M70-A70
B59355-M80-A70
B59355-M90-A70
B59355-M100-A70
B59355-M110-A70
B59355-M120-A70
B59355-M130-A70
B59355-M140-A70
B59355-M145-A70
B59355-M150-A70
B59355-M155-A70
B59355-M160-A70
B59355-M170-A70
B59355-M180-A70
Siemens Matsushita Components
141
B59355
M 355
Characteristics (typical)
PTC resistance
R
PTC
versus PTC temperature
T
PTC
(measured at low signal voltage)
PTC resistance
R
PTC
versus PTC temperature
T
PTC
(measured at low signal voltage)
142
Siemens Matsushita Components
B59355
M 355
Characteristics (typical)
PTC resistance
R
PTC
versus PTC temperature
T
PTC
(measured at low signal voltage)
PTC resistance
R
PTC
versus PTC temperature
T
PTC
(measured at low signal voltage)
Siemens Matsushita Components
143
