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3RT2026-2BB40

The 3RT2026-2BB40 is a 3-pole AC contactor from Siemens' 3RT2 series, rated at 40 A (Ith) for 690 V AC (deratable to 1000 V AC) main contacts. Its 24 V DC coil consumes 10 W (standby) / 20 VA (in-run), featuring 3 NO main contacts and 1 NO + 1 NC built-in auxiliary contacts.

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3RT2026-2BB40 Brief English Parameters
General Information
Product Family: Siemens 3RT2 Series Contactor
Order Code: 3RT2026-2BB40
Type: 3-pole AC contactor with coil
Key Technical Specs
Rated Current (Ith): 40 A (AC-1)
Rated Voltage:
Main contacts: 690 V AC (up to 1000 V AC with derating)
Coil voltage: 24 V DC (50/60 Hz compatible)
Control Power: 10 W (standby), 20 VA (in-run)
Contact Configuration:
3 normally open (NO) main contacts
1 NO + 1 NC auxiliary contacts (built-in)
Mechanical/Environmental
Dimensions: 73 x 90 x 110 mm (WxHxD)
Mounting: DIN rail (TS 35) or panel mounting
Operating Temperature: -25°C to +70°C
Electrical Life:
1,000,000 operations (AC-3, 400 V AC)
Enclosure Material: Flame-retardant thermoplastic