Page 50 - 1SBC104119C0202_MainCatalog_R contactors

IORR2500..CC … IORR5100..CC and
IORE2500..CC … IORE5100..CC contactors
Technical data

Main pole - Utilization characteristics according to IEC

Contactor types AC operated IORR2500..CC IORR3200..CC IORR3800..CC IORR4500..CC IORR5100..CC

Standards DC operated IORE2500..CC IORE3200..CC IORE3800..CC IORE4500..CC IORE5100..CC
IEC 60947-1 / 60947-4-1 and EN 60947-1 / 60947-4-1

Rated operational voltage Ue max. 1500 V DC

Number of poles 1...4

Conventional free-air thermal current Ith

acc. to IEC 60947-4-1, open contactors, θ ≤ 40 °C 2300 A 3200 A 3800 A 4500 A 5000 A
With conductor cross-sectional area 2000 mm² 3000 mm² 3000 mm² 4000 mm² 4000 mm²

DC-1 Utilization category, L/R ≤ 1 ms

Ie / Rated operational current DC-1

1 pole ≤ 750 V 2300 A 3200 A 3800 A 4500 A 5000 A

4

2 poles in series

≤ 1000 V 2300 A 3200 A 3800 A 4500 A 5000 A

≤ 1500 V 2300 A 3200 A 3800 A 4500 A 5000 A

DC-3 Utilization category, L/R ≤ 2 ms

Ie / Rated operational current DC-3 Please consult us

For voltage up to 1500 V
DC-5 Utilization category, L/R ≤ 7.5 ms

Ie / Rated operational current DC-5

For voltage up to 1500 V Please consult us

Rated short-time withstand current Icw 1 s 20000 A 21000 A 24000 A 28000 A 30000 A

at 40 °C ambient temperature, 10 s 15000 A 18000 A 19000 A 21000 A 24000 A

in free air from a cold state 30 s 8000 A 10000 A 11000 A 12000 A 13000 A

1 min 6000 A 7000 A 7500 A 8000 A 9000 A

15 min 3000 A 4000 A 4500 A 5000 A 5500 A

Maximum making capacity 24000 A 26000 A 29000 A 32000 A 32000 A

Dynamical withstand of pole 24000 A 26000 A 29000 A 32000 A 32000 A

Impedance per pole 0.09 mΩ 0.06 mΩ 0.05 mΩ 0.04 mΩ 0.03 mΩ

Maximum electrical switching frequency 60 cycles/h 40 cycles/h

Mechanical durability

Number of operating cycles 2 millions cycles 1 million cycles

Maximum switching frequency 600 cycles/h 300 cycles/h

Notes: - The arc switching on DC is more difficult than on AC
- For information, typical time constant values are quoted hereafter: non inductive loads such as resistance furnaces: L/R < 1 ms; inductive loads such as shunt motor:
L/R < 2 ms; series motor: L/R < 7.5 ms
- The addition of a resistor in parallel with an inductive winding helps in the elimination of the arcs
- All the poles required for breaking must be connected, in series, between the load and the source polarity not linked to the earth
- Connection of the poles in series by the user, according to the above diagrams. The connection of the poles in series helps in the elimination of the arcs
- These characteristics are suitable for IOR..CC-AME contactor latching versions (except for mechanical durability = 0.2 millions of operating cycles).

1SBC104036S0201

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