Eaton BF Series Four-Pole Cont...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$499.90
Eaton BF Series Four-Pole Control Relay, 300V, 110/120V Coil Voltage

Eaton BF Series Four-Pole Control Relay, 300V, 110/120V Coil Voltage

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Model: BF20G

In Stock (leaves warehouse same day if ordered before 3pm ET)

$499.90
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Eaton BF Series Four-Pole Control Relay, 300V, 110/120V Coil Voltage

The Eaton BF Series Four-Pole Control Relay is a 300V max. voltage rated control relay built for reliable circuit switching in industrial and commercial control panels. Featuring a four-pole design with a 2 NO-2 NC contact configuration, this relay operates on a 110/120V coil voltage and is supplied as NO/NC contact sets with overlapping contacts, ensuring NO contacts close before the corresponding NC contact opens. Backed by CSA certification, it delivers dependable performance for control and logic circuits.

Key Features

  • Four-Pole Design: Four-pole configuration supports multi-circuit control applications in a single compact relay.
  • Voltage Rating: 300V max. voltage rating for dependable performance in control circuit applications.
  • Coil Voltage: 110/120V coil voltage for compatibility with standard control power sources.
  • Contact Configuration: 2 NO-2 NC contact configuration, supplied as matched NO/NC sets for precise switching sequencing.
  • Overlapping Contacts: Special overlapping contact feature ensures NO contacts close before the corresponding NC contact opens.
  • Frequency Rating: Rated for 50-60 Hz AC control circuits.
  • BF Series: Part of Eaton's BF series of control relays and accessories, engineered for industrial control reliability.

Certifications & Compliance

  • CSA File No. LR39402-6

Technical Specifications

  • Warranty: 1 year
  • Series: BF
  • Department: Electrical
  • Voltage Rating: 300V

Typical Applications

  • Industrial and Commercial Control Panels
  • Machine Control and Automation Circuits
  • Motor Starter and Contactor Control Systems
  • Relay Logic and Interlock Systems
  • Panelboard and Control Cabinet Wiring

Why Eaton?

Eaton's BF Series control relays combine a durable four-pole, 2 NO-2 NC contact design with CSA certification to deliver dependable, code-compliant performance for demanding control applications. The overlapping contact feature and 110/120V coil voltage make these relays a trusted choice for professionals building reliable industrial and commercial control systems.

Manufacturer Resources

Product Specs

Warranty:
1 year
Series:
BF
Department:
Electrical
Frequency Rating:
50-60 Hz
Voltage Rating:
300V
Product Type:
Control Relay
Configuration:
2 NO-2 NC
Listing:
CSA Listed
Product Group:
Motor Control & Automation
Product Subgroup:
Contactors & Relays

Eaton BF20G – Frequently Asked Questions

1) What contact arrangement does the Eaton BF Series control relay come with?
The BF Series relay is supplied with a 2 NO-2 NC arrangement, so you get two normally open and two normally closed contacts in one four-pole body. They ship as matched NO/NC sets with overlapping contacts, meaning the NO contacts close before the corresponding NC contact opens. That sequencing matters in interlock and changeover logic where you cannot allow a momentary open gap between the two states.
2) Will an Eaton BF relay work on 120V control power?
Yes. The coil is rated 110/120V, which lines up with the standard control transformer secondary used in most industrial and commercial panels. It is an AC device rated 50-60 Hz, so it runs on either 50 or 60 Hz supply.
3) Is the Eaton BF control relay CSA listed for a Canadian jobsite?
It is CSA Listed, under CSA File No. LR39402-6. For an inspector or a spec that calls out third-party certification on control components, that is the reference to cite.
4) How many poles can I get in the Eaton BF Series?
Pole counts run from 2 up to 6 depending on the part you order: BF20G is the two-pole, BFA22F the four-pole, BF33F the six-pole, plus the BF66F. Pick the pole count by how many separate circuits the relay has to break, since all of them share the same BF series coil and contact construction.
5) What is the maximum circuit voltage on the Eaton BF Series relay?
300V max. That covers the usual 120V and 240V control circuits found in machine control, motor starter control, and relay logic panels. It is a control relay, not a power switching contactor, so keep it on control and logic circuits rather than motor loads.
6) Why choose an overlapping contact relay instead of a standard control relay?
Overlapping contacts change the switching order: the NO contacts make before the matching NC contacts break. In a standard relay the break happens first, which leaves a brief dead interval. If you are building an interlock, a sequencing circuit, or anything that must not lose continuity during transfer, the BF Series overlapping design is what you want. For simple on/off logic where timing does not matter, a plain NO/NC relay is fine.
7) Can I use the Eaton BF relay to control a motor starter?
Yes, as the control element. It is built for motor starter and contactor control circuits, relay logic, and interlock systems in panelboards and control cabinets. It switches the coil circuit of the starter, not the motor's line current.
How fast can I get the Eaton BF20G delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton BF20G come with a warranty?
Absolutely. The Eaton BF20G is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton BF20G?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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