Built for demanding industrial environments, this 20A thermal-magnetic breaker features a factory-installed 1A/1B auxiliary switch for status monitoring. The Square D FAL340201212 provides dependable long-time and instantaneous (LI) trip functions for 240/480VAC and 250VDC systems. It mounts into standard Square D enclosures, switchboards, and motor control centers. When upgrading legacy F-Frame installations, this unit can be replaced by the HDL36020 with a matching auxiliary switch accessory.
Square D Enclosures, Switchboards, Motor Control Centers
Wire Gauge
14-4 AWG (Cu), 12-4 AWG (Al)
Max Wire
4 AWG
Min Wire
14 AWG (Cu), 12 AWG (Al)
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, Undervoltage Release, Alarm Switch
Accessories
Auxiliary Switch (Factory Installed)
Standards
CSA C22.2 No. 5, HACR Rated, NEMA AB 1, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, Visual Trip Indicator
Product FAQs
6 answers
What does the "1212" suffix mean on the FAL340201212 circuit breaker?
The 1212 suffix indicates that this breaker includes a factory-installed auxiliary switch with 1A/1B contacts (one normally open and one normally closed).
What are the wire colors for the 1212 auxiliary switch contacts on this breaker?
For Square D legacy breakers with the 1212 suffix, the yellow wire is normally open (NO), the blue wire is normally closed (NC), and the striped wire is the common connection.
Can I install the FAL340201212 in an I-Line panelboard?
No. The FAL340201212 is a unit-mount (feed-thru) circuit breaker designed for use in Square D enclosures, switchboards, and motor control centers. For an I-Line panelboard, you would need an FA or FH breaker with an I-Line mounting bracket.
What is the modern replacement for the legacy FAL340201212 circuit breaker?
The legacy F-Frame series has been replaced by the Square D PowerPact B-Frame series. When upgrading, verify panel compatibility as dimensional and mounting differences apply.
How can I visually verify if the FAL340201212 has tripped?
Square D F-Frame breakers feature a Visi-Trip indicator. When the breaker trips, the handle moves to a center position and a highly visible red indicator appears in a small window on the face of the breaker.
Does the FAL340201212 include a push-to-trip button for testing?
Yes, Square D F-Frame breakers feature a push-to-trip button that allows you to mechanically test the tripping mechanism and verify the Visi-Trip indicator is functioning properly.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
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.
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.