Industrial & MRO PartsSiemens 3WA1240 Series Air Circuit Breakers
The Siemens 3WA1240 series is a configurable air circuit breaker family: each unit is built to an order-specific number, and this page documents 13 known 3WA1240 configuration patterns, including non-automatic circuit breaker withdrawable version, without guide frame, iec 60947-2, frame size 2; ac non-automatic air circuit breaker 3wa, withdrawable version, with guide frame, iec 60947-2, size.
The dots or blanks in a pattern stand for order-specific characters — ratings, terminals and options chosen at purchase. Your unit's rating plate carries the complete order number: send it to KKM Solutions exactly as printed and our order desk replies with pricing and availability for that precise configuration, with worldwide shipping. We also source Siemens accessories and spares for the 3WA1240 series.
Known 3WA1240 Configurations
| Configuration pattern | Description |
|---|---|
| 3WA1240-4.B30-.... | Withdrawable circuit breaker without guide frame, IEC 60947-2, frame size 2, 3-poles, In=4000A up to |
| 3WA1240-4.B51-.... | withdrawable circuit breaker, with guide frame, IEC 60947-2, size 1, 4-pole, N pole on right, In=400 |
| 3WA1240-4.B76-.... | withdrawable circuit breaker, with guide frame, IEC 60947-2, size 1, 4-pole, N pole on left, In=4000 |
| 3WA1240-5.A36-.... | AC non-automatic air circuit breaker 3WA, withdrawable version, with guide frame, IEC 60947-2, size |
| 3WA1240-5.A40-.... | Non-automatic circuit breaker withdrawable version, without guide frame, IEC 60947-2, frame size 2 |
| 3WA1240-5.B02-.... | fixed-mounted circuit breaker, IEC 60947-2, size 1, 3-pole, In=4000 A up to 690 V AC 50/60 Hz, break |
| 3WA1240-5.B31-.... | Withdrawable circuit breaker with guide frame, IEC 60947-2, frame size 2, 3-poles, In=4000A up to 69 |
| 3WA1240-5.E02-.... | fixed-mounted circuit breaker, IEC 60947-2, size 2, 3-pole, In=4000 A up to 690 V AC 50/60 Hz, break |
| 3WA1240-5.E22-.... | fixed-mounted circuit breaker, IEC 60947-2, size 2, 4-pole, N pole on right, In=4000 A up to 690 V A |
| 3WA1240-5.E26-.... | fixed-mounted circuit breaker, IEC 60947-2, size 2, 4-pole, N pole on right, In=4000 A up to 690 V A |
| 3WA1240-5.E42-.... | withdrawable circuit breaker, with guide frame, IEC 60947-2, size 2, 4-pole, N pole on left, In=4000 |
| 3WA1240-5.E45-.... | withdrawable circuit breaker, with guide frame, IEC 60947-2, size 2, 4-pole, N pole on left, In=4000 |
| 3WA1240-5.E66-.... | withdrawable circuit breaker, with guide frame, IEC 60947-2, size 2, 3-pole, In=4000 A up to 690 V A |
3WA1240 — Frequently Asked Questions
How do I order a 3WA1240 air circuit breaker?
Siemens 3WA1240 units are configured per order — the full order number on your existing unit or panel schedule identifies the exact configuration. Email the complete order number (every character) to orderdesk@kkmsolutions.com and our order desk replies with pricing and availability within 1 business day.
What if some characters of my 3WA1240 order number are unreadable?
Send a photo of the rating plate or nameplate to orderdesk@kkmsolutions.com along with what the unit does (voltage, current rating, mounting). We identify the configuration against manufacturer data and confirm the exact replacement before quoting — we never guess part numbers.
Can KKM Solutions supply accessories and spares for the 3WA1240 series?
Yes. Alongside complete units we source Siemens accessories and spare parts for the 3WA1240 series — send the accessory part number or describe the part and we quote it.
Does KKM Solutions ship worldwide?
Yes. We ship worldwide from our Calgary, Alberta base — to your site, warehouse, or freight forwarder. Sourced items ship per the quoted lead time.
Have the full 3WA1240 order number?
Send it exactly as printed on the rating plate — we source the precise configuration and reply with pricing and availability.