Skip to main content
Expedited shipping available at checkout

Siemens ED21B030 Molded Case Circuit Breaker

  • 30A
  • 1 Pole
  • Bolt-On
Siemens ED21B030
Molded Case Circuit Breaker
Brand Siemens
SKU ED21B030
Select Item Condition
Earn 80 SuperPoints
  • 30A
  • 1 Pole
  • Bolt-On

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Siemens ED21B030 1 Pole Circuit Breaker

Siemens ED21B030 - 30A 1 Pole Molded Case Circuit Breaker

New

$80.68 In Stock

Quantity

Similar Items

Description

Built to handle demanding commercial loads, this 30A single-pole MCCB delivers dependable protection. The unit belongs to the rugged Sentron family. The bolt-on configuration ensures a secure connection within Siemens P1, P2, and P3 panelboards, alongside SB switchboards. Load side lugs accommodate 10-1/0 AWG wire. Carrying a 10kAIC rating at 120VAC, this device is HACR rated for heating and cooling equipment and allows for reverse feeding.

Specifications

Key specifications
Brand Siemens
Part Number ED21B030
Series ED2
Amperage 30A
Poles 1
Mounting Style Bolt-On
Voltage 120VAC, 125VDC
Phase 1
AIC Rating 10kA @ 120VAC, 5kA @ 125VDC
Fit and installation
Frame Type ED
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards, SB Switchboards
Wire Gauge 10-1/0 AWG (Cu/Al)
Max Wire 1/0 AWG
Min Wire 10 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, HACR Rated, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed

Product FAQs

6 answers
Which panelboards accept the ED21B030, and how much space does it require?

This bolt-on breaker mounts in Siemens P1, P2, and P3 panelboards, as well as SB switchboards. As a 1-pole ED frame breaker, it requires exactly 1 inch of unit space on the bus.

Is the Siemens ED21B030 suitable for HVAC equipment?

Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.

Can the ED21B030 be reverse fed?

Yes, this thermal magnetic breaker does not have line or load restrictions and is suitable for reverse feeding applications.

Can I add a shunt trip or auxiliary switch to this breaker?

Yes, internal accessories can be added to ED frame breakers. However, installing an accessory on a 1-pole ED breaker will require an additional 1 inch of unit space in your panelboard.

What is the difference between the Siemens ED21B030, ED41B030, and ED61B030?

While all three are 30-amp, 1-pole ED frame breakers, they have different voltage and interrupting ratings. The ED21B030 is rated 10kAIC at 120VAC. The ED41B030 offers a higher interrupting capacity of 65kAIC at 120VAC, and the ED61B030 is rated for 30kAIC at 347VAC.

Can I install this Siemens breaker in a GE or Eaton panel?

No. Siemens ED frame breakers are only UL listed for use in compatible Siemens panelboards and switchboards. Installing them in other brands violates the UL listing and creates a safety hazard.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Read our full shipping policy

Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.

Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.

International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.