Rated 22 kAIC at 120/240VAC, this Siemens B2020H tandem circuit breaker offers robust thermal-magnetic protection while maximizing enclosure space. The twin design allows two independent 20-amp circuits to occupy a single-pole footprint, making it ideal for commercial and industrial capacity upgrades. It mounts into Siemens P1, P2, and P3 panelboards, replacing standard 1-pole BL breakers in pairs. Features include SWD and HACR ratings for versatile application support.
Specifications
Brand
Siemens
Series
BTH
Part Number
B2020H
Amperage
20/20A
Voltage
120/240VAC
Poles
1
Phase
1
AIC Rating
22kA @ 120/240VAC
Special Classification
Tandem
Mounting Style
Bolt-On
Terminal Type
Lugs
For Use With
Siemens P1, P2, P3 Panelboards
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed
Wire Gauge
14-12 AWG (Cu), 12-10 AWG (Al)
Max Wire
12 AWG (Cu), 10 AWG (Al)
Min Wire
14 AWG (Cu), 12 AWG (Al)
Available Options
Padlock Attachment
Accessories
Load Side Lugs Included
Standards
CSA C22.2 No. 5, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Tandem
SuperClub
Get rewarded every time you shop! Join SuperClub for free and start earning points on every purchase, unlocking exclusive discounts, special promos, and VIP perks. Already a member? Keep shopping to level up your rewards and enjoy even more benefits, including faster shipping, extended returns, and premium offers.
When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.
If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.
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.
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.