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ESP M1 Series - Technical specification
Electrical specification
ESP 120 M1
ESP 208 M1
ESP 240 M1
ESP 415 M1
ESP 277 M1
ESP 480 M1
ABB order code
7TCA085460R0070 7TCA085460R0089 7TCA085460R0097 7TCA085460R0078 7TCA085460R0112 7TCA085460R0136
Nominal voltage - Phase-Neutral
U
o (RMS)
120 V
120 V
240 V
240 V
277 V
277 V
Maximum voltage - Phase-Neutral
U
c (RMS)
150 V
150 V
280 V
280 V
350 V
350 V
Temporary Overvoltage TOV
U
T
(1)
175 V
175 V
350 V
350 V
402 V
402 V
Short circuit withstand capability
25 kA/50 Hz
25 kA/50 Hz
25 kA/50 Hz
25 kA/50 Hz
25 kA/50 Hz
25 kA/50 Hz
Working voltage (RMS)
90-150 V
156-260 V
200-280 V
346-484 V
232-350 V
402-600 V
Frequency range
47-63 Hz
Max. back-up fuse (see installation instructions)
≤ 125 A
Leakage current (to earth)
< 250 μA
Indicator circuit current
< 10 mA
Volt free contact:
(2)
Screw terminal
– Current rating
1 A
– Nominal voltage (RMS)
250 V
Transient specification
ESP 120 M1
ESP 208 M1
ESP 240 M1
ESP 415 M1
ESP 277 M1
ESP 480 M1
Type 1 (BS EN/EN), Class I (IEC)
Nominal discharge current 8/20 μs (per mode)
I
n
20 kA
Let-through voltage
U
p at
I
n
< 1 kV
< 1 kV
< 1.3 kV
< 1.3 kV
< 1.4 kV
< 1.4 kV
Impulse discharge current 10/350 μs
I
imp (to earth)
(4)
4 kA
Let-through voltage Up at
I
imp
< 1 kV
< 1 kV
< 1.3 kV
< 1.3 kV
< 1.4 kV
< 1.4 kV
Total discharge current 10/350 µs
I
total (total to earth)
(4,5)
8 kA
16 kA
8 kA
16 kA
8 kA
16 kA
Type 2 (BS EN/EN), Class II (IEC)
Nominal discharge current 8/20 μs (per mode)
I
n
20 kA
Let-through voltage
U
p at
I
n
< 1 kV
< 1 kV
< 1.3 kV
< 1.3 kV
< 1.4 kV
< 1.4 kV
Maximum discharge current
I
max (L/N-PE, L-N)
(4)
40 kA, 40 kA
Type 3 (BS EN/EN), Class III (IEC)
Let-through voltage at
U
oc of 6 kV 1.2/50 μs and
Is
c of 3 kA 8/20 μs (per mode)
(3,6)
390 V
390 V
600 V
600 V
680 V
680 V
Mechanical specification
ESP 120 M1
ESP 208 M1
ESP 240 M1
ESP 415 M1
ESP 277 M1
ESP 480 M1
Temperature range
-40 to +80 °C
Connection type
Screw terminal - maximum torque 1.5 Nm
Conductor size (stranded)
16 mm
2
Earth connection
Screw terminal - maximum torque 1.5 Nm
Volt free contact
Connect via screw terminal with conductor up to 2.5 mm
2
(stranded) - maximum torque 0.25 Nm
Degree of protection (IEC 60529)
IP20
Case material
Steel
Weight: – Unit
0.6 kg
1.0 kg
0.6 kg
1.0 kg
0.6 kg
1.0 kg
– Packaged
0.7 kg
1.1 kg
0.7 kg
1.1 kg
0.7 kg
1.1 kg
Dimensions
See diagrams below
(1)
Temporary Overvoltage rating is for a maximum duration of
5 seconds tested to BS EN/EN/IEC 61643
(2)
Minimum permissable load is 5 V DC, 10 mA to ensure
reliable operation
(3)
The maximum transient voltage let-through of the protector
throughout the test (±10%), phase to neutral, phase to
earth and neutral to earth
(4)
The electrical system, external to the unit, may constrain the
actual current rating achieved in a particular installation
(5)
Rating is considered as the current capability of the protector
for equipotential bonding near the service entrance
(6)
Combination wave test within IEC/BS EN 61643,
IEEE C62.41-2002 Location Cats C1 & B3, SS 555:2010,
AS/NZS 1768-2007, UL 1449 mains wire-in
Single
Phase
Three
Phase
M5 Clearance
Note: The unit
takes up 20 mm
of the length of
the fixing screw
Depth:
73 mm
60 mm
110 mm
45.5 mm
180 mm
165 mm
70 mm
Mains power protection
ESP M1 Series