SIEMENS
SIEMENS 3RT20241AC20 Contactor 24V AC 3P 12A 40A 1NO/1NC
IEC magnetic contactor with 24 V AC coil, three poles, 12 A inductive and 40 A resistive ratings, 1NO/1NC auxiliary contacts, screw terminals, DIN-rail or surface mounting in S0 frame
- IEC magnetic contactor rated 12 A inductive load
- 24 V AC coil voltage for control circuits
- Three-pole main contacts plus 1NO/1NC auxiliary
- Screw-terminal connections on DIN-rail or surface mount
- SIRIUS 3RT20 series frame size S0 compact design
SIEMENS SIRIUS 3RT20 Contactor 24V AC
This SIEMENS SIRIUS 3RT20 IEC magnetic contactor is designed for switching three-phase motor loads and power circuits in industrial control panels. It operates on a 24V AC coil voltage and provides a compact DIN rail or surface mounting solution. The unit is suited for electrical engineers and maintenance technicians building or servicing automation systems.
12 A Inductive 40 A Resistive 3 Pole Rating
The contactor carries a full load inductive current rating of 12 A and a resistive rating of 40 A across its three main poles. This specification determines the maximum motor or heating load the device can reliably switch. The auxiliary contacts are configured as 1NO/1NC for control circuit signalling and interlocking.
DIN Rail Screw Terminal Installation
The contactor mounts on standard DIN rail or directly onto a panel surface using screw terminals for all power and control connections. The screw terminal design accepts solid or stranded conductors without specialised tooling. Ensure the coil voltage matches the control circuit supply to prevent operational failure.
Highlights
- IEC magnetic contactor rated 12 A inductive load
- 24 V AC coil voltage for control circuits
- Three-pole main contacts plus 1NO/1NC auxiliary
- Screw-terminal connections on DIN-rail or surface mount
- SIRIUS 3RT20 series frame size S0 compact design
Specifications
| Brand | SIEMENS |
|---|
Questions about this item
What does the 12 A inductive rating mean for my motor circuit?
The contactor is rated to switch inductive loads up to 12 A at full load, suitable for typical three-phase motor starting duties.
How does the 24 V AC coil voltage affect control wiring?
The coil operates on 24 V AC, so your control circuit must supply that voltage; it cannot be driven directly from a 24 V DC source.
What mounting options does the S0 frame provide?
The unit mounts on DIN rail or can be surface mounted, with overall dimensions of 3.6 in height by 2.2 in width.
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