Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Siemens Molded Case Circuit Breaker: 70 A Amps, 18kA at 480V AC, Fixed, Load Side Lug - ED-Frame Siemens Molded Case Circuit Breakers
SiemensED-Frame Siemens Molded Case Circuit Breakers

Siemens Molded Case Circuit Breaker: 70 A Amps, 18kA at 480V AC, Fixed, Load Side Lug

The SIEMENS ED-Frame Molded Case Circuit Breaker (SKU 3CMK3) is a 70 A rated device from the ED4 series. It features a fixed instantaneous trip, a maximum AIR rating of 18kA at 480V AC, and ABC phase connection. The…

SKU 3G-OTH-21986

Brand
Siemens
Item
Molded Case Circuit Breaker: 70 A Amps, 18kA at 480V AC, Fixed, Load Side Lug
Category
ED-Frame Siemens Molded Case Circuit Breakers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Siemens
Manufacturer Part Number
ED43B070
Series
ED4
Type
18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4
Max. AIR Rating
18kA at 480V AC
Phase Connection
ABC
Instantaneous Trip
Fixed
Terminal Connection
Load Side Lug
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS ED-Frame Molded Case Circuit Breaker (SKU 3CMK3) is a 70 A rated device from the ED4 series. It features a fixed instantaneous trip, a maximum AIR rating of 18kA at 480V AC, and ABC phase connection. The breaker includes load-side lug terminal connections and is identified by manufacturer part number ED43B070.

Frequently Asked Questions

What is the SIEMENS ED43B070 molded case circuit breaker used for?

The SIEMENS ED43B070 is a 70 A molded case circuit breaker used for overcurrent protection in industrial power distribution panels, motor control centers, and branch circuits. Its 18kA interrupting rating at 480V AC suits commercial and light industrial applications requiring reliable fault interruption.

What are the specifications of the SIEMENS ED43B070?

The SIEMENS ED43B070 is a 70 A, ED4 series molded case circuit breaker with a fixed instantaneous trip, ABC phase connection, and load-side lug terminals. It has a maximum AIR rating of 18kA at 480V AC. The manufacturer part number is ED43B070.

Where to buy the SIEMENS ED43B070 worldwide?

3G Electric supplies the SIEMENS ED43B070 molded case circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this ED4 series breaker.

How to select the right SIEMENS molded case circuit breaker for my application?

To select the right SIEMENS MCCB, match the continuous current rating (e.g., 70 A for ED43B070) to your load, verify the interrupting rating (18kA at 480V AC) exceeds available fault current, and confirm phase connection (ABC) and terminal type (load-side lug) fit your panel. Consult a licensed engineer for coordination studies.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens ed-frame siemens molded case circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SIEMENS Molded Case Circuit Breaker: 90 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B090). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 90 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B090). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
SIEMENS Molded Case Circuit Breaker: 100 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B100). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 100 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B100). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
SIEMENS Molded Case Circuit Breaker: 60 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B060). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 60 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B060). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
SIEMENS Molded Case Circuit Breaker: 50 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B050). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 50 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B050). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
SIEMENS Molded Case Circuit Breaker: 80 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B080). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 80 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B080). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
SIEMENS Molded Case Circuit Breaker: 20 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B020). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 20 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B020). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.

More from Siemens

View all Siemens parts →
SIEMENS Molded Case Circuit Breaker: 60 A Amps, 10kA at 240V AC, Fixed, Load Side Lug, ABC, ED2 (MPN ED23B060). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED2; Max. AIR Rating: 10kA at 240V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 60 A Amps, 10kA at 240V AC, Fixed, Load Side Lug, ABC, ED2 (MPN ED23B060). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED2; Max. AIR Rating: 10kA at 240V AC.
SIEMENS Molded Case Circuit Breaker: 40 A Amps, 22kA at 277V AC, Fixed, Load Side Lug, Any, ED4 (MPN ED41B040). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 22kA at 277V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 40 A Amps, 22kA at 277V AC, Fixed, Load Side Lug, Any, ED4 (MPN ED41B040). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 22kA at 277V AC.
SIEMENS Molded Case Circuit Breaker: 30 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B030). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 30 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED43B030). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
SIEMENS Molded Case Circuit Breaker: 15 A Amps, 65kA at 277V AC, Fixed, Load Side Lug, Any, HED4 (MPN HED41B015). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: HED4; Max. AIR Rating: 65kA at 277V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 15 A Amps, 65kA at 277V AC, Fixed, Load Side Lug, Any, HED4 (MPN HED41B015). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: HED4; Max. AIR Rating: 65kA at 277V AC.
SIEMENS Molded Case Circuit Breaker: 50 A Amps, 10kA at 240V AC, Fixed, Load Side Lug, ABC, ED2 (MPN ED23B050). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED2; Max. AIR Rating: 10kA at 240V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 50 A Amps, 10kA at 240V AC, Fixed, Load Side Lug, ABC, ED2 (MPN ED23B050). Key specifications — Phase Connection: ABC; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED2; Max. AIR Rating: 10kA at 240V AC.
SIEMENS Molded Case Circuit Breaker: 60 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, Any, ED4 (MPN ED42B060). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 60 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, Any, ED4 (MPN ED42B060). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
SIEMENS Molded Case Circuit Breaker: 70 A Amps, 42kA at 480V AC, Fixed, Load Side Lug, Any, HED4 (MPN HED42B070). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: HED4; Max. AIR Rating: 42kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 70 A Amps, 42kA at 480V AC, Fixed, Load Side Lug, Any, HED4 (MPN HED42B070). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: HED4; Max. AIR Rating: 42kA at 480V AC.
SIEMENS Molded Case Circuit Breaker: 70 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, Any, ED4 (MPN ED42B070). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.
Siemens
SIEMENS Molded Case Circuit Breaker: 70 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, Any, ED4 (MPN ED42B070). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: ED4; Max. AIR Rating: 18kA at 480V AC.