ABB System pro M Technical data

Technical data

Mounting and operating instructions

System

Pro M

14

Mounting

Universal mounting position using snap-on mounting
to standard 35x7.5mm DIN rail.

Miniature circuit breakers (MCBs) can also be
mount ed to front of door using a panel cut-out with
breaker handle pro trud ing through panel opening for
external operation. Special front mount ing kit type
ME is avail able (see page 2.12).

Mounting MCB

Removing MCB

Possible mounting arrangements of MCB accessories

H11

NT

S/H

S

MCB

Connection

Terminals are suitable for solid or fl exible conductors
from 18 to 4 AWG (0.75 to 25mm2) with no busbar
connected. When max i mum busbar size of 36 mm2
is used, maximum cable is 6 AWG (16 mm2).

Maximum tightening torque of 17.5 in-lb (2 Nm)
for line/load terminals and 4.5 in-lb (0.5Nm) for
ac ces so ry device terminals.

H11

A

MCB

S/H

S

BM

BM

Operation

MCBs are switched on by moving the handle to the
upper po si tion. Stamped onto the handle switch, a “I”
is visible confi rming that the breaker is closed.

The MCBs are “trip-free,” if the handle is being
forced to the “ON” position, the breaker will still trip
under fault conditions.

The “O” marking indicates that the breaker is in the
“OFF” position. The MCB is now open and the load is
disconnected from line power.

When a breaker has tripped, the MCB handle should
fi rst be set to the full “OFF” position to make certain
the trip mechanism has been reset. Once the fault
has been determined and cleared the MCB can
again be switched “ON”.

Maintenance

ABB miniature circuit breakers require no special
maintenance; only normal electrical system
maintenance pro ce dures are required.

A

MCB

BM

Auxiliary switch/bell alarm

neutral disconnect

Shunt trip or undervoltage release

mounted with auxiliary switch

Shunt trip and/or undervoltage release

Auxiliary switch

Set MCB to “OFF” position and mount
Set breaker to “ON” position Break out opening on side of MCB auxiliary switch to side of breaker Attach with spring clamps

Bell alarm with auxiliary contact

Set MCB to “OFF” position, insert metal pin as
Break out opening on side of MCB noted above with arrow and mount device to
Set breaker to “ON” position and remove seal side of MCB Attach with spring clamps

Shunt trip and undervoltage release

14

Remove seal Add shunt trip to MCB Attach with spring clamps

Low Voltage Products & Systems 14.21

ABB Inc. • 888-385-1221 • www.abb-control.com AC 1000 - 11/03

System

Pro M

14

Technical data

Busbars & connectors
Connection methods

Dual function terminals provided in open
position for connection to busbars. Pressing
on screw head opens box terminal for cable
insertion. Only the lower terminal is dual
func tion.

Lower terminals can be bussed together
with single phase or multi-phase busbars as
shown. Upper ter mi nals can also be busbar
con nect ed.

14

Terminals allow for con nec tion of cable 18-4
AWG. Conductors of different sizes may also
be used in same terminal.

Lower terminal can also be bussed with solid
round con duc tor.

Up to fi ve conductors, 16 AWG each, can be
safely connected per terminal.

Cables can be connected to box terminals in
addition to busbar con nec tions on lower, dual
function terminals.

14.22 Low Voltage Products & Systems

AC 1000 - 11/03 ABB Inc. • 888-385-1221 • www.abb-control.com

Technical data

S260, S270, & S280

System

Pro M

14

Item S260-B S260-C, -D S270-K S280-K

Approvals:
UL 1077 1077 1077 1077
CSA C22.2 — No.235 C22.2 — No. 235 C22.2 — No. 235 —
VDE 0641, 0660 0660 0660 0660
IEC 898, 947 898, 947 898, 947 898, 947

No. of poles: 1,2,3,4 1+N,3+N 1,2,3 1,2,3,4, 1+N,3+N 1,2,3,4,1+N,3+N
Tripping characteristic: B C,D K K
Rated currents: 6 to 63A 0.5 to 63A 0.5 to 63A 0.2 to 63A
Minimum operating voltage: 12V 12V 12V 12V
UL/CSA rated voltage & Single pole

interrupting capacity

120VAC 10kA — 10kA — 10kA —

6kA for 50-63A
240VAC 6kA 10kA 6kA 10kA 6kA 10kA

6kA for 50-63A 6kA for 40-63A
277VAC 6kA — 6kA — 6kA —

277/480 VAC — 6kA — 6kA — 6kA — 10kA

60VDC 10kA 10kA 10kA 10kA 10kA 10kA — —
125VDC — 10kA — 10kA — 10kA — —

Frequency: 50/60Hz (See below) 50/60Hz (see below) 50/60Hz (see below) 50/60Hz (see below)
Rated voltage

IEC single pole 240/415VAC 240/415VAC 240/415VAC 240/415VAC
60VDC 60VDC 60VDC 60VDC
IEC multi-pole 415VAC 415VAC 415VAC 415VAC
110VDC 110VDC 110VDC 110VDC

Protection category: IP20 IP20 IP20 IP20
Depth of unit per DIN 43880: 68
Mounting position: optional optional optional optional
Standard mounting: 35
Main and shunt trip terminals:

Wire size 6-40A 18-4 AWG 0.5-40A 18-4 A WG 0.5-40A 18-4 AWG 0.2-40A 18-4 AWG
50A & above 18-2 AWG 50A & above 18-2 AWG 50A & above 18-2 AWG 50A & above 18-2 AWG
Torque 17.5 in-lbs. 17.5 in-lbs. 17.5 in-lbs. 17.5 in-lbs.
Tool #2 Posidrive #2 Posidrive #2 Posidrive #2 Posidrive

Accessory terminals
Wire size 18-16 AWG 18-16 AWG 18-16 AWG 18-16 AWG
Torque 4.5 in-lbs. 4.5 in-lbs. 4.5 in-lbs. 4.5 in-lbs.
Tool #1 Posidrive #1 Posidrive #1 Posidrive #1 Posidrive

Service life at rated load: In < 32 A, 20,000 operations In < 32 A, 20,000 operations In < 32 A, 20,000 operations In < 32 A, 20,000 operations
In > 32 A, 10,000 operations In > 32 A, 10,000 operations In > 32 A, 10,000 operations In > 32 A, 10,000 operations

Ambient temperatures: -25°C to +55°C -25°C to +55°C -25°C to +55°C -25°C to +55°C
Storage temperatures -40°C to + 70°C -40°C to + 70°C -40°C to + 70°C -40°C to + 70°C

Shock resistance: 30g minimum of 2 impacts, 30g minimum of 2 impacts, 30g minimum of 2 impacts, 30g minimum of 2 impacts,
shock duration of 13ms shock duration of 13ms shock duration of 13ms shock duration of 13ms

Vibration resistance: 5g, 20 cycles, 5 Hz, 150 Hz 5g, 20 cycles, 5 Hz, 150 Hz 5g, 20 cycles, 5 Hz, 150 Hz 5g, 20 cycles, 5 Hz, 150 Hz
@ 0.8 ~ In @ 0.8 ~ I

Disconnecting neutral rating: 6kA switching 6kA switching 6kA switching —

Multi pole Single pole Multi pole Single pole Multi pole Single pole Multi pole

10kA for 0.2-40A

10kA for 0.2-40A 10kA for 0.2-32A

10kA for 0.2-40A

mm 68mm 68mm 68mm

mm DIN rail 35mm DIN rail 35mm DIN rail 35mm DIN rail

n

@ 0.8 ~ I

n

@ 0.8 ~ I

—

—

n

14

Infl uence of frequency on electro-magnetic trips

Magnetic trip values shown on trip curves are valid for 50/60Hz ap pli ca tions. For
frequencies other than 50/60Hz, the mag net ic (in stan ta neous) trip values are
increased by the factor given below:

16
Approx. factor 1 1.1 1.2 1.5 1.5

Thermal tripping is independent of frequency.

1 Available for purchase. See page 14.19.

Low Voltage Products & Systems 14.23

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2/3 - 60Hz 100Hz 200Hz 400Hz DC