Allen-Bradley

1747-L40B

Name: 1747-L40B
Brand: Allen-Bradley

Verified market

Market snapshot

Prices updated 10 Aug 2026 · next refresh 10 Sep

$290

Low

$1,289

High

Median $478 · 9 sellers · $188 below median at the lowest

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$ Compare your quote against 9 current asking prices.

Asking prices for the exact catalog number 1747-L40B currently range from $290 to $1,289 across 9 sellers, observed 10 Aug 2026. Prices are published seller asking prices; shipping, taxes and negotiated trade pricing are not included.

Current listings

9 SELLERS · SORTED BY PRICE

Seller	Condition	Price	vs median	Listing
Qualitrol International	USED / REFURB	$290.00	-39%	View offer
Great American Equipment Company	not stated	$375.00	-22%	View offer
PLC Department	not stated	$422.32	-12%	View offer
HGR*24	not stated	$428.00	-10%	View offer
Classic Automation	not stated	$478.00	·	View offer
DO Supply	not stated	$613.00	+28%	View offer
Radwell.com	not stated	$660.15	+38%	View offer
Control System Labs	not stated	$844.00	+77%	View offer
Southland Electrical Supply	USED / REFURB	$1,289.26	+170%	View offer

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Condition

AS STATED BY SELLERS

Used / refurbished	2
Not stated	7

Most industrial listings do not state condition — treat unstated as unknown, not as new. Across 8 comparable parts in SLC 500 CPUs, used and refurbished units list at 127% of new — condition is not a reliable discount signal for industrial parts, because refurbished stock from trade houses carries warranty and test reports.

Variants and similar numbers

VERIFY BEFORE ORDERING

Catalog number	Relationship	Sellers	Median	vs this part
1747-L40C	one character apart	10	$462	-3%
1747-L20C	one character apart	8	$373	-22%
1747-L30C	one character apart	6	$384	-20%
1747-L20B	one character apart	4	$668	+40%
1747-L30B	one character apart	4	$452	-6%
1747-L30A	one character apart	3	$599	+25%

These are different products that read almost identically on a purchase order. Google groups them together; we do not. Confirm the exact suffix against the nameplate before ordering.

Frequently asked

How much does a 1747-L40B cost?

As of 10 Aug 2026, the Allen-Bradley 1747-L40B is listed from $290 to $1,289 across 9 sellers. The median asking price is $478. Prices are published seller asking prices and are refreshed monthly.

Who sells the 1747-L40B?

9 sellers currently list the 1747-L40B, including Qualitrol International, Great American Equipment Company, PLC Department. 9 of them are specialist industrial distributors. The lowest current asking price is $290 from Qualitrol International.

Why do 1747-L40B prices vary so much?

The highest asking price for the 1747-L40B is 4.4× the lowest. Industrial parts trade in a market where new surplus, refurbished stock and list-price sellers coexist without a shared price reference, so identical catalog numbers are listed at very different prices.

Related SLC 500 CPUs parts

10 SHOWN

Catalog number	Sellers	Low	Median	Spread
1747-UICSLC 500 CPUs	2	$57.95	$69.38	+$22.85
1747-BASLC 500 CPUs	3	$12.99	$14.78	+$3.23
1747-CP3SLC 500 CPUs	2	$18.00	$18.98	+$1.95
1747-AENTRSLC 500 CPUs	2	$2,500	$4,321	+$3,642
1747-L551SLC 500 CPUs	11	$1,281	$1,500	+$719
1747-L552SLC 500 CPUs	3	$3,934	$4,369	+$1,025
1747-L553SLC 500 CPUs	2	$2,766	$7,321	+$9,110
1747-SNSLC 500 CPUs	6	$15.00	$28.49	+$28.56
1747-L532SLC 500 CPUs	12	$73.00	$180	+$365
1747-L541SLC 500 CPUs	7	$260	$279	+$63.60