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ABB Switches Change-over and transfer switches

High performance level

In change-over applications where the loaded switch may

need to be operated remotely, adequate durability has been

ensured by testing against the IEC 60947-6-1 standard in the

specification of endurance requirements.

Utilization categories:

– AC-31 for non-inductive or slightly inductive load

– AC-33 for motor loads or mixed loads including motors

ABB change-over switches are rated according to IEC

60947-6-1 standard

Easy installation for local or remote control

ABB change-over switches are very easy to install: the

manually operated switch is operated via a handle fixed

directly on the switch or on the panel door. The 16 to 125

Ampere sizes can be snapped on to a DIN rail and the front

fits in the 45 mm consumer unit cut-out.

The motorized change-over switches have snap-on control

wire connections. Auxiliary contacts can be snapped on to

the sides of the switches and the power terminals can be

connected in parallel with bridging bars.

The automatic transfer switches feature the automatic control

unit, which can be adjusted according to the mounting depth

of the panel. The voltage sensing kit is installed at the factory

thus reducing the expensive and time consuming installation

work.

Quick and easy installation

– savings in time and expenses

As industrial processes and IT applications diversify, a secure

power supply is increasingly important to cut production and

maintenance costs. In emergency situations, the system logic

of power distribution can become complex with mechanical

devices looking after making, breaking, conducting and isolating

power. Loads need to be transferred from one supply to another

— this will be the case when energy use is restricted or when

the supply source is overloaded.

Safe and reliable

ABB automatic transfer switches ensure service continuity

with a number of built-in, integrated safety features. The

change-over mechanism, for example, offers three stable

positions which ensure isolation of the two asynchronous

power supplies. This eliminates any risk of short-circuit

between them, even in the presence of transient voltages.

The automatic transfer switches are equipped with a handle

for manual operation in case of emergency.

Inbuilt safety

Compact design

The design of ABB change-over switches is advanced

and compact, allowing installation in confined spaces at

considerable savings. Compact double layer construction.

Minimizing the need for space

Data according to IEC 60947-3 Switch size

Rated insulation voltage and rated

operational voltage AC20/DC20 Pollution degree 3 V

Dielectric strength 50 Hz 1min. kV

Rated impulse withstand voltage kV

Rated thermal current and rated operational / ambient 40°C In open air A

current AC20/DC20 / ambient 40°C In enclosure A

/ ambient 60°C In enclosure A

..with minimum conductor cross section Cu mm2

Rated operational current, AC-21A up to 500 V A

690 V A

Rated operational current, AC-22A up to 500 V A

690 V A

Rated operational current, AC-23A up to 415 V A

440 V A

500 V A

690 V A

Rated operational current / poles in series, DC-21A up to 48 V1) A

110 V A

220 V A

440 V A

500 V A

Rated operational current / poles in series, DC-22A up to 48 V1) A

110 V A

220 V A

440 V A

Rated operational current / poles in series, DC-23A up to 48 V1) A

110 V A

220 V A

440 V A

Rated operational power, AC-23A2) 230 V kW

The kW-ratings are accurate for 3-phase 1500 400 V kW

R.P.M. standard asychronous motors 415 V kW

500 V kW

690 V kW

Rated breaking capacity in up to 415 V A

category AC-23 500 V A

690 V A

Rated conditional short-circuit current Ip (r.m.s.) and I

p (r.m.s.) 50 kA, 415 V î

c

(peak) kA

corresponding max. allowed cut-off current îc

(peak) Max. OFA_ fuse size gG/aM A/A

value. The cut-off current îc

refers to values listed by I

p (r.m.s.) 100 kA, 500 V î

c

(peak) kA

fuse manufacturers (single phase test acc. to IEC60269). Max. OFA_ fuse size gG/aM A

Rated short-time withstand current I

cw (r.m.s.) 690 V 1s kA

Rated short-time making capacity3) I

cm (peak) 690 V kA

Power loss / pole With rated current W

Mechanical endurance Number of oper. cycles4) Cycles

Mechanical endurance / switch Number of operations Oper.

Cable size Cu-wire size suitable for mm2

terminal clamps AWG

Terminal tightening torque Counter torque required Nm

Operating torque Typical for 3-pole switches Nm

Weight without accessories 3-pole switch kg

4-pole switch kg

Data according to UL508 (Listed)

Current A

Horsepower, 3-phase 200 V HP

208 V HP

240 V HP

480 V HP

600 V HP

Data according to IEC 60947-3 Switch size

Rated insulation voltage and rated operational voltage AC20/DC20 Pollution degree 3 V

Dielectric strength 50 Hz 1min. kV

Rated impulse withstand voltage kV

Rated thermal current and rated operational / ambient 40°C In open air A

current AC20/DC20 / ambient 40°C In enclosure A

/ ambient 60°C In enclosure A

..with minimum conductor cross section Cu mm2

Rated operational current, AC-21A up to 500 V A

690 V A

Rated operational current, AC-22A up to 500 V A

690 V A

Rated operational current, AC-23A up to 415 V A

500 V A

690 V A

Rated operational current / poles in series, DC-21A up to 48 V A

110 V A

220 V A

Rated operational current / poles in series, DC-22A up to 48 V A

110 V A

220 V A

Rated operational current / poles in series, DC-23A up to 48 V A

110 V A

220 V A

Rated operational power, AC-23A1) 230 V kW

The kW-ratings are accurate for 3-phase 1500 400 V kW

R.P.M. standard asychronous motors 415 V kW

500 V kW

690 V kW

Rated breaking capacity in up to 415 V A

category AC-23 500 V A

690 V A

Rated conditional short-circuit current Ip (r.m.s.) and corresponding max. I

p (r.m.s.) 50 kA, 415 V î

c

(peak) kA

allowed cut-off current îc

(peak) value. The cut-off current îc

refers to Max. OFA_ fuse size gG/aM A/A

values listed by fuse manufacturers (single phase test acc. to IEC60269). Ip (r.m.s.) 18 kA, 690 V î

c

(peak) kA

Max. OFA_ fuse size gG A

I

p (r.m.s.) 50 kA, 690 V î

c

(peak) kA

Max. OFA_ fuse size gG/aM A/A

Rated short-time withstand current I

cw (r.m.s.) 690 V 1s kA

Rated short-time making capacity2) Icm (peak) 690 V kA

Power loss / pole With rated current W

Mechanical endurance Number of oper. cycles3) Cycles

Mechanical endurance / switch Number of operations Oper.

Cable size Cu-wire size suitable mm2

for terminal clamps AWG

Terminal tightening torque Counter torque required Nm

Operating torque Typical for 3-pole switches Nm

Weight without accessories 3-pole switch kg

4-pole switch kg

Data according to IEC 60947-6-1

Class of equipment

Rated short-time withstand current Icw (r.m.s.) 690 V 0.1s kA

Conditional short-circuit current Icc (r.m.s.) 415 V kA

Corresponding fuse rating gG/aM fuse 415 V A

Rated operational current, AC-31B up to 415 V A

Rated operational current, AC-32B up to 415 V A

Rated operational current, AC-33B up to 415 V A

OTM630E_C

OTM1000E_C

OTM1600E_C

OTM2000E_C

OTM800E_C

OTM1250E_C

OTM2500E_C

OTM315E_C_D

OTM630E_C_D

OTM1000E_C_D

OTM1600E_C_D

OTM400E_C_D

OTM800E_C_D

OTM1250E_C_D

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