Datasheet

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Data sheet 3RT2026-1KB40

power contactor, AC-3 25 A, 11 kW / 400 V 1 NO + 1 NC, 24 V DC

with integrated varistor 3-pole, Size S0, screw terminal suitable for

PLC outputs

Product brand name SIRIUS

Product designation Coupling relay

Product type designation 3RT2

General technical data

Size of contactor S0

Product extension

● function module for communication

● Auxiliary switch

Surge voltage resistance

● of main circuit rated value

6kV

● of auxiliary circuit rated value

6kV

maximum permissible voltage for safe isolation

● between coil and main contacts acc. to EN

60947-1

400V

Protection class IP

● on the front

IP20

● of the terminal

IP20

Shock resistance at rectangular impulse

● at DC

10g / 5 ms, 7,5g / 10 ms

3RT2026-1KB40 Subject to change without notice

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Summary of content (12 pages)

PAGE 1
Data sheet 3RT2026-1KB40 power contactor, AC-3 25 A, 11 kW / 400 V 1 NO + 1 NC, 24 V DC with integrated varistor 3-pole, Size S0, screw terminal suitable for PLC outputs Product brand name SIRIUS Product designation Coupling relay Product type designation 3RT2 General technical data Size of contactor S0 Product extension ● function module for communication No ● Auxiliary switch No Surge voltage resistance ● of main circuit rated value 6 kV ● of auxiliary circuit rated value 6 kV maximum pe
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Shock resistance with sine pulse ● at DC 15g / 5 ms, 10g / 10 ms Mechanical service life (switching cycles) ● of contactor typical 10 000 000 ● of the contactor with added electronicscompatible auxiliary switch block typical 5 000 000 ● of the contactor with added auxiliary switch block typical 10 000 000 Reference code acc. to DIN 40719 extended according to IEC 204-2 acc. to IEC 750 K Reference code acc.
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— up to 400 V for current peak value n=20 rated value 20.2 A — up to 500 V for current peak value n=20 rated value 20.2 A — up to 690 V for current peak value n=20 rated value 12.9 A ● at AC-6a — up to 230 V for current peak value n=30 rated value 13.5 A — up to 400 V for current peak value n=30 rated value 13.5 A — up to 500 V for current peak value n=30 rated value 13.
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— at 110 V rated value 2.5 A — at 220 V rated value 1A — at 440 V rated value 0.09 A — at 600 V rated value 0.06 A ● with 2 current paths in series at DC-3 at DC-5 — at 24 V rated value 35 A — at 110 V rated value 15 A — at 220 V rated value 3A — at 440 V rated value 0.27 A — at 600 V rated value 0.16 A ● with 3 current paths in series at DC-3 at DC-5 — at 24 V rated value 35 A — at 110 V rated value 35 A — at 220 V rated value 10 A — at 440 V rated value 0.
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● at AC-3 maximum 750 1/h ● at AC-4 maximum 250 1/h Control circuit/ Control Type of voltage of the control supply voltage DC Control supply voltage at DC ● rated value 24 V Operating range factor control supply voltage rated value of magnet coil at DC ● initial value 0.7 ● Full-scale value 1.25 Design of the surge suppressor with varistor Closing power of magnet coil at DC 4.5 W Holding power of magnet coil at DC 4.5 W Closing delay ● at DC 50 ... 170 ms Opening delay ● at DC 15 ...
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● at 60 V rated value 2A ● at 110 V rated value 1A ● at 125 V rated value 0.9 A ● at 220 V rated value 0.3 A ● at 600 V rated value 0.
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— upwards 10 mm — downwards 10 mm — at the side 0 mm ● for grounded parts — forwards 10 mm — upwards 10 mm — at the side 6 mm — downwards 10 mm ● for live parts — forwards 10 mm — upwards 10 mm — downwards 10 mm — at the side 6 mm Connections/ Terminals Type of electrical connection ● for main current circuit screw-type terminals ● for auxiliary and control current circuit screw-type terminals ● at contactor for auxiliary contacts Screw-type terminals ● of magnet coil Screw-type
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20 ... 14 ● for auxiliary contacts Safety related data B10 value ● with high demand rate acc. to SN 31920 1 000 000 Proportion of dangerous failures ● with low demand rate acc. to SN 31920 40 % ● with high demand rate acc. to SN 31920 73 % Failure rate [FIT] 100 FIT ● with low demand rate acc. to SN 31920 Product function Yes ● Mirror contact acc. to IEC 60947-4-1 T1 value for proof test interval or service life acc.
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Further information Information- and Downloadcenter (Catalogs, Brochures,…) www.siemens.com/sirius/catalogs Industry Mall (Online ordering system) https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RT2026-1KB40 Cax online generator http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RT2026-1KB40 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.
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45 107 35.1 4.8 3 / L2 5 / L3 43 1 / L1 2 1 NC 75 A1 + 85 1 3 NO 3. 4. 5. A2 - 6. 2 2 NC 2.5 1 4 NO 7.