Thermal Overcurrent Circuit Breaker 1657-...
Description
Single pole thermal reset circuit breaker in a miniaturised design
intended for thread neck mounting. Easy and quick reset after
tripping due to overcurrent. Trip-free mechanism and automatic
disconnection in the event of an overcurrent, even with a blocked
actuator button. R-Type TO CBE to EN60934. Very cost effective
design to meet international requirements.
lꢀ Manual reset, trip free mechanism
lꢀ Extremely small and lightweight
Typical applications
1
1657-...
Power tools, Industrial equipment, Medical equipment, Power generators,
Motors, Battery chargers, UPS.
Technical data
Ordering information
Voltage rating
Current ratings
AC 250 V, DC 32 V
Type No.
5...12 A inductive load
13...20 A resistive load
1657 single pole thermal circuit breaker, black body
Threadneck design
G11 M11x1,0 (Plastic), white push-to-reset button
G12 M11x1,0 (Plastic), black push-to-reset button
G21 3/8“-24 UNF (Plastic), white push-to-reset button
G22 3/8“-24 UNF (Plastic), black push-to-reset button
Hardware
Typical life
500 operations at 1.5 x In resistive
AC 125 V
operat. IN
UN
Behaviour at rated
switching capacity
(EN 60934;
40
40
5...12 A AC 250 V
5...20 A DC 32 V
6 x In ind.
4 x In ind.
00 no hardware
01 one integrated knurled nut (plastic),
Y 310 777 01 for M11, Y 310 778 01 for 3/8", bulk
Terminals
test sequence D)
Ambient temperatur
-10 °C to +60 °C (+14...+140° F)
P10 blade terminals A6.3-0,8 (QC .250)
P13 blade terminals A6.3-0,8 (QC .250), 90°
S83 bent screw terminals 8-32 UNC
Current ratings
Insulation co-ordination
(IEC 60664)
2,5 kV/2 reinforced insulation in
operating area
Dielectric strength
operating area
5/6/7/8/10/12/15/20 A
test voltage AC 3,000 V
> 500 MΩ
Insulation resistance
1657-G21 -01 - P10 -5 A
Ordering example
Interrupting capacity (Icn
)
IN
UN
5...12 A AC 250 V 6 x In
Standard current ratings and typical resistance
5...20 A DC 32 V
6 x In
INC
Interrupting capacity
(UL 1077)
IN
UN
Current
rating (A)
Typical
Current
Typical
Resistance (Ω)
Resistance (Ω) rating (A)
5...20 A
5...20 A
5...20 A
AC 250 V 1000 A, C, 1
AC 250 V 400 A, U, 3
DC 50 V 300 A, C, 1
5 A
6 A
7 A
8 A
0.225
0.175
0.175
0.175
10 A
12 A
15 A
20 A
0.125
0.125
0.050
0.040
Degree of protection
(IEC 60529)
operating area IP40
terminal area IP00
Vibration
57 Hz acceleration 30m/s2 (3 g)
in X.Y.Z. direction (2 timesl/min.)
Shock
Mass
300m/s2 (30 g) in X.Y.Z. direction
approx. 14 g
Approvals
Authority Standard
Voltage rating
Current ratings
UL
UL 1077
(E67320)
AC 250 V
DC 50 V
5 A...20 A
5 A...20 A
TÜV SÜD EN 60934 /
IEC 60934
AC 250 V
DC 32 V
5 A...12 A
5 A...20 A
UL
UL 1500
AC 250 V
DC 50 V
5 A...20 A
5 A...20 A
050215
www.e-t-a.de
1