Name: W51-A121B1-20
Brand: TE Connectivity Potter & Brumfield Relays
SKU: W51-A121B1-20
Availability: InStock
Rating: 5 (89 reviews)

W51-A121B1-20

For Reference Only

Part Number	W51-A121B1-20
Manufacturer	TE Connectivity Potter & Brumfield Relays
Description	CIR BRKR THRM 20A 125VAC 50VDC
Datasheet	W51-A121B1-20 Specifications
Package	-
ECAD
In Stock	22,290 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	Apr 28 - May 3 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # W51-A121B1-20 (Circuit Breakers) is manufactured by TE Connectivity Potter & Brumfield Relays and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For W51-A121B1-20 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add W51-A121B1-20 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of W51-A121B1-20.

W51-A121B1-20 Specifications

Manufacturer	TE Connectivity Potter & Brumfield Relays
Category	Circuit Protection - Circuit Breakers
Package	-
ECAD
Series	W51
Breaker Type	Thermal
Current Rating	20A
Voltage Rating - AC	125V
Voltage Rating - DC	50V
Number of Poles	1
Actuator Type	Rocker
Illumination	Red
Illumination Voltage (Nominal)	-
Mounting Type	Panel Mount

W51-A121B1-20 Reviews

Brea*****Roth

March 26, 2023

★ ★ ★ ★ ★

It arrived on time. I was able to finish a repair before Sunday service and with no over time. Easy to work with.

Kill*****Ryan

March 20, 2023

★ ★ ★ ★ ★

Not much to say. Nice and cheap, and haven't had a failure yet.

Sinc*****Sani

March 18, 2023

★ ★ ★ ★ ★

Every little component you can always find in here, and good suggestion for relative times too.

Tia*****Patla

March 11, 2023

★ ★ ★ ★ ★

Fast delivery, good quality, 100% satisfacted

Lucia*****amaniam

March 2, 2023

★ ★ ★ ★ ★

The helper is super handy, especially if you work with medium size PCB boards as it allows to hold the board steady in every position. It feels pretty sturdy and of good quality.

Trev*****clean

February 27, 2023

★ ★ ★ ★ ★

Very good and very fast . 100% safe company

Ryla*****rraf

February 26, 2023

★ ★ ★ ★ ★

Good quality, buy back and then use, with the newly bought hard disk, very stable, at any time you can check things, not occupy space, very convenient.

Bre***** Rowe

February 21, 2023

★ ★ ★ ★ ★

They work great exactly what I needed.

Nal*****adan

February 19, 2023

★ ★ ★ ★ ★

Heisener is on a very short list of companies I highly recommend without any hesitation. From stock, pricing, ease of ordering and great service, they have it all.

Write a Review

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W51-A121B1-20 Packaging

W51-A121B1-20 FAQ

1. How to order W51-A121B1-20 on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that W51-A121B1-20 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the W51-A121B1-20. All suppliers must pass our qualification reviews before they can publish their products including W51-A121B1-20 on Heisener; we pay more attention to the channels and quality of W51-A121B1-20 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the W51-A121B1-20 price and inventory displayed accurate?

The price and inventory of W51-A121B1-20 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of W51-A121B1-20?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the W51-A121B1-20 we delivered, we will accept the replacement or return of the W51-A121B1-20 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of W51-A121B1-20.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as W51-A121B1-20 pin diagram, W51-A121B1-20 datasheet?

If you need any after-sales service, please do not hesitate to contact us.

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W51-A121B1-20 Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# V99:2348_17688074

TE Connectivity

Circuit Breaker Thermal 1Pole 20A 125VAC

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# 1423673-7

TE Connectivity

Circuit Breaker Thermal 1Pole 20A 125VAC - Trays (Alt: 1423673-7)

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# 1423673-7

TE Connectivity

Circuit Breaker Thermal 1Pole 20A 125VAC (Alt: 1423673-7)

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

TE Connectivity

320

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

TE Connectivity

Lead time 91

994

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# PB531-ND

TE Connectivity

CIR BRKR THRM 20A 125VAC 50VDC

1769

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# 6387172

TE Connectivity

CIRCUIT BREAKER, THERMAL, 1P, 125V, 20A

RoHS: Compliant

Min Qty: 1000

Container: Each

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

TE Connectivity

Circuit Breaker Thermal 1Pole 20A 125VAC

RoHS: Compliant

427

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# 655-W51-A121B1-20

TE Connectivity

Circuit Breakers 20A RCKR ACT RED ILL

RoHS: Compliant

942

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# 08H0786

TE Connectivity

CIRCUIT BREAKER, THERMAL, 1P, 125V, 20A, Product Range:W51 Series, Current Rating:20A, No. of Poles:1 Pole, Voltage Rating VDC:50VDC, Voltage Rating VAC:125VAC, Circuit Breaker Mounting:Panel, Operating Voltage:125V, Voltage AC:125V RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1000

Container: Bulk

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# NS-W51-A121B1-20

TE Connectivity

OEM/CM ONLY

4437

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

TE Connectivity

Circuit Breaker Thermal 1Pole 20A 125VAC

RoHS: Compliant

427

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

TE Connectivity

256

Part Number

Manufacturer

Description

Stock

W51A121B120

TE Connectivity

OEM/CM ONLY

657

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

TE Connectivity

W51-A121B1-20=CKTBKR,THERM,ROC Circuit Breaker Type: Thermal Circuit Function: Trip-Free - Switchable Illuminated: Yes Rocker Color: Red (Translucent) Voltage Rating AC: 125 VAC Thermal Trip-Free - Switchable Red (Translucent) | Circuit Breaker | Part Number: W51-A121B1-20 | Internal Number: 1423673-7 | TE Connectivity

RoHS: Compliant

Min Qty: 1

1769

Part Number

Manufacturer

Description

Stock

1423673-7

TE Connectivity

Circuit Breakers W51-A121B1-20

W51-A121B1-20

TE Connectivity

Circuit Breakers 20A RCKR ACT RED ILL

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# 51888190

TE Connectivity

Circuit Breaker Thermal 1Pole 20A 125VAC

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

W51-A121B1-20

D# 6387172

TE Connectivity

CIRCUIT BREAKER, THERMAL, 1P, 125V, 20A

RoHS: Compliant

Min Qty: 1

Container: Each

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W51-A121B1-20

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