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Circular Locking Connectors & Cable Assemblies

Amphenol Commercial MRD Circular Locking Connectors and Cable Assemblies are 2-, 3-, and 4-position IP67 connectors. These connectors and cable assemblies feature housing options including all-plastic constructions and metal-locking bodies for increased durability. Locking options include 1/3-turn bayonet as well as quick-release metal latches. Panel mount and cable termination options are available with or without finger-proof protection. Amphenol Commercial MRD Circular Locking Connectors and Cable Assemblies offer a current rating up to 10A and are designed to with a -55°C to +105°C temperature range.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Standard Circular Connector MRDAP02M15000 MRDAP02M15000 Amphenol Commercial Products 1: $13.72 481In Stock	Mfr. Part No. MRDAP02M15000 Mouser Part No 523-MRDAP02M15000	Amphenol Commercial Products	Standard Circular Connector MRDAP02M15000 Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	481In Stock	$13.72 $12.16 $11.69 $9.93 View $9.33 $9.08 $9.01 Quote	Min.: 1 Mult.: 1
Standard Circular Connector Female Plastic HSG Socket MRD-AH03-L13-000 Amphenol Commercial Products 1: $7.57 484In Stock	Mfr. Part No. MRD-AH03-L13-000 Mouser Part No 523-MRD-AH03-L13-000	Amphenol Commercial Products	Standard Circular Connector Female Plastic HSG Socket Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	484In Stock	$7.57 $7.05 $6.48 $6.33 View $5.50 $5.47 $5.40 $4.93 $4.92	Min.: 1 Mult.: 1
Standard Circular Connector Female Metal Housing Pin Contact MRD-BG04-L13-000 Amphenol Commercial Products 1: $13.51 108In Stock	Mfr. Part No. MRD-BG04-L13-000 Mouser Part No 523-MRD-BG04-L13-000	Amphenol Commercial Products	Standard Circular Connector Female Metal Housing Pin Contact Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	108In Stock	$13.51 $12.19 $11.60 $11.15 View $10.69 $9.73 $9.48	Min.: 1 Mult.: 1
Standard Circular Connector Harsh MRD receptacle, plastic, 4 pins Amphenol Commercial Products MRDBJ04L13000 MRDBJ04L13000 Amphenol Commercial Products 1: $11.12 102In Stock	Mfr. Part No. MRDBJ04L13000 Mouser Part No 523-MRDBJ04L13000	Amphenol Commercial Products	Standard Circular Connector Harsh MRD receptacle, plastic, 4 pins Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	102In Stock	$11.12 $9.85 $9.47 $8.05 View $7.55 $7.51 $7.33 $7.04 Quote	Min.: 1 Mult.: 1
Standard Circular Connector HRD CIR CONN METAL HOUSING MRD-BN04-M17-000 Amphenol Commercial Products 1: $18.74 163In Stock	Mfr. Part No. MRD-BN04-M17-000 Mouser Part No 523-MRDBN04M17000	Amphenol Commercial Products	Standard Circular Connector HRD CIR CONN METAL HOUSING Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	163In Stock	$18.74 $15.91 $14.91 $14.14 View $13.74 $12.89	Min.: 1 Mult.: 1
Standard Circular Connector Female Plastic HSG Socket MRD-AH03-M15-000 Amphenol Commercial Products 1: $11.71 71In Stock	Mfr. Part No. MRD-AH03-M15-000 Mouser Part No 523-MRD-AH03-M15-000	Amphenol Commercial Products	Standard Circular Connector Female Plastic HSG Socket Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	71In Stock	$11.71 $11.70 $8.54 $8.15 View $7.90 $7.57 $6.86 $6.52 Quote	Min.: 1 Mult.: 1
Standard Circular Connector Male Plastic Housing Pin Contact MRD-AP03-M15-000 Amphenol Commercial Products 1: $12.76 34In Stock	Mfr. Part No. MRD-AP03-M15-000 Mouser Part No 523-MRD-AP03-M15-000	Amphenol Commercial Products	Standard Circular Connector Male Plastic Housing Pin Contact Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	34In Stock	$12.76 $10.84 $10.16 $9.68 View $9.21 $8.57	Min.: 1 Mult.: 1
Standard Circular Connector Female Metal Housing Pin Contact MRD-BG04-M17-000 Amphenol Commercial Products 1: $15.55 78In Stock	Mfr. Part No. MRD-BG04-M17-000 Mouser Part No 523-MRD-BG04-M17-000	Amphenol Commercial Products	Standard Circular Connector Female Metal Housing Pin Contact Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	78In Stock	$15.55 $13.21 $12.39 $11.79 View $11.23 $10.64	Min.: 1 Mult.: 1
Standard Circular Connector Female Plastic HSG Pin Contact MRD-BJ03-L13-000 Amphenol Commercial Products 1: $9.89 109In Stock	Mfr. Part No. MRD-BJ03-L13-000 Mouser Part No 523-MRD-BJ03-L13-000	Amphenol Commercial Products	Standard Circular Connector Female Plastic HSG Pin Contact Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	109In Stock	$9.89 $8.46 $7.92 $7.54 View $7.18 $6.73 $6.54	Min.: 1 Mult.: 1
Standard Circular Connector Male Plastic Housing Socket MRD-BR03-M16-000 Amphenol Commercial Products 1: $15.14 66In Stock	Mfr. Part No. MRD-BR03-M16-000 Mouser Part No 523-MRD-BR03-M16-000	Amphenol Commercial Products	Standard Circular Connector Male Plastic Housing Socket Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	66In Stock	$15.14 $12.87 $12.06 $11.48 $10.33	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD A PANEL MOUNT RECPT MRDAH02L13000 Amphenol Commercial Products 1: $5.55 193In Stock	Mfr. Part No. MRDAH02L13000 Mouser Part No 523-MRDAH02L13000	Amphenol Commercial Products	Specialised Cables RUGGED MRD A PANEL MOUNT RECPT Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	193In Stock	$5.55 $5.27 $5.13 $5.11 View $5.05 $4.57 $4.36 $4.33 $4.22	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD A PANEL MOUNT RECPT MRDAH04L13000 Amphenol Commercial Products 1: $8.40 79In Stock	Mfr. Part No. MRDAH04L13000 Mouser Part No 523-MRDAH04L13000	Amphenol Commercial Products	Specialised Cables RUGGED MRD A PANEL MOUNT RECPT Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	79In Stock	$8.40 $7.94 $7.32 $6.56 View $6.18 $6.16	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD-A CABLE ASSBLY PLUG MRDAP02CAPC00 Amphenol Commercial Products 1: $21.09 17In Stock	Mfr. Part No. MRDAP02CAPC00 Mouser Part No 523-MRDAP02CAPC00	Amphenol Commercial Products	Specialised Cables RUGGED MRD-A CABLE ASSBLY PLUG Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	17In Stock	$21.09 $19.47 $16.99 $16.94	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD-A CABLE ASSBLY PLUG MRDAP04CAPC00 Amphenol Commercial Products 1: $31.68 19In Stock	Mfr. Part No. MRDAP04CAPC00 Mouser Part No 523-MRDAP04CAPC00	Amphenol Commercial Products	Specialised Cables RUGGED MRD-A CABLE ASSBLY PLUG Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	19In Stock	$31.68 $25.63 $22.90	Min.: 1 Mult.: 1
Standard Circular Connector RUGGED MRD B PANEL MOUNT RECPT MRDBF02L13000 Amphenol Commercial Products 1: $14.55 35In Stock	Mfr. Part No. MRDBF02L13000 Mouser Part No 523-MRDBF02L13000	Amphenol Commercial Products	Standard Circular Connector RUGGED MRD B PANEL MOUNT RECPT Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	35In Stock	$14.55 $12.90 $12.25 $11.96 $10.79	Min.: 1 Mult.: 1
Standard Circular Connector RUGGED MRD B PANEL MOUNT RECPT MRDBF03L13000 Amphenol Commercial Products 1: $14.06 56In Stock	Mfr. Part No. MRDBF03L13000 Mouser Part No 523-MRDBF03L13000	Amphenol Commercial Products	Standard Circular Connector RUGGED MRD B PANEL MOUNT RECPT Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	56In Stock	$14.06 $12.62 $12.00 $11.54 View $10.97 $10.61	Min.: 1 Mult.: 1
Standard Circular Connector RUGGED MRD B PANEL MOUNT RECPT MRDBG02L13000 Amphenol Commercial Products 1: $11.33 23In Stock	Mfr. Part No. MRDBG02L13000 Mouser Part No 523-MRDBG02L13000	Amphenol Commercial Products	Standard Circular Connector RUGGED MRD B PANEL MOUNT RECPT Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	23In Stock	$11.33 $10.39 $9.90 $9.80 $9.36	Min.: 1 Mult.: 1
Standard Circular Connector RUGGED MRD B PANEL MOUNT RECPT MRDBG03L13000 Amphenol Commercial Products 1: $11.61 6In Stock	Mfr. Part No. MRDBG03L13000 Mouser Part No 523-MRDBG03L13000	Amphenol Commercial Products	Standard Circular Connector RUGGED MRD B PANEL MOUNT RECPT Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	6In Stock	$11.61 $10.96 $10.54 $10.26 $10.19	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG MRDBM02CAPC00 Amphenol Commercial Products 1: $29.64 15In Stock	Mfr. Part No. MRDBM02CAPC00 Mouser Part No 523-MRDBM02CAPC00	Amphenol Commercial Products	Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	15In Stock	$29.64 $27.55 $24.78	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG MRDBM03CAPA00 Amphenol Commercial Products 1: $25.81 1In Stock	Mfr. Part No. MRDBM03CAPA00 Mouser Part No 523-MRDBM03CAPA00	Amphenol Commercial Products	Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	1In Stock	$25.81 $24.99 $21.42 $20.68	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG MRDBN02CAPA00 Amphenol Commercial Products 1: $24.52 2In Stock	Mfr. Part No. MRDBN02CAPA00 Mouser Part No 523-MRDBN02CAPA00	Amphenol Commercial Products	Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	2In Stock	$24.52 $21.88 $19.61 $19.17 View $18.91 $18.27	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG MRDBN02CBPC00 Amphenol Commercial Products 1: $45.33 17In Stock	Mfr. Part No. MRDBN02CBPC00 Mouser Part No 523-MRDBN02CBPC00	Amphenol Commercial Products	Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	17In Stock	$45.33 $39.87 $39.34	Min.: 1 Mult.: 1
Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG MRDBN04CAPA00 Amphenol Commercial Products 1: $27.33 15In Stock	Mfr. Part No. MRDBN04CAPA00 Mouser Part No 523-MRDBN04CAPA00	Amphenol Commercial Products	Specialised Cables RUGGED MRD-B CABLE ASSBLY PLUG Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	15In Stock	$27.33 $26.30 $22.81	Min.: 1 Mult.: 1
Standard Circular Connector Harsh MRD plug, plastic, 4 sockets, 7-9mm cable MRDBR04M16000 Amphenol Commercial Products 1: $17.47 117In Stock	Mfr. Part No. MRDBR04M16000 Mouser Part No 523-MRDBR04M16000	Amphenol Commercial Products	Standard Circular Connector Harsh MRD plug, plastic, 4 sockets, 7-9mm cable Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	117In Stock	$17.47 $15.12 $14.34 $14.13 View $12.94 $12.04 $11.92 $11.76	Min.: 1 Mult.: 1
Standard Circular Connector HARSH MRD Connector, IP67,8pin, Female Plastic Housing, Socket Contact MRDAH08L13000 Amphenol Commercial Products 1: $11.58 135Expected 2026/11/26	Mfr. Part No. MRDAH08L13000 Mouser Part No 523-MRDAH08L13000	Amphenol Commercial Products	Standard Circular Connector HARSH MRD Connector, IP67,8pin, Female Plastic Housing, Socket Contact Learn More about Amphenol Commercial Products amphenol mrd circular connectors	Datasheet	135Expected 2026/11/26	$11.58 $10.58 $9.92 $9.44 View $8.99 $8.43 $8.34	Min.: 1 Mult.: 1

Circular Locking Connectors & Cable Assemblies

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