.hide-partial { max-height: none; } .show-more { display: none; }

Altech Circuit Protection

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 5.183

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Circuit Breakers 0.5A,MCB D CHAR 2PL 480Y/277VAC, UL1077

2D05UR
Altech
1: Rp919.502
1In Stock

Mfr. Part No.
2D05UR

Mouser Part No
845-2D05UR

Altech

Circuit Breakers 0.5A,MCB D CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

1In Stock

Rp919.502

Rp654.952

Rp633.487

Rp616.609

View

Min.: 1
Mult.: 1

Circuit Breakers 10A,MCB D CHAR 2PL 480Y/277VAC, UL1077

2D10UR
Altech
1: Rp919.502
7In Stock

Mfr. Part No.
2D10UR

Mouser Part No
845-2D10UR

Altech

Circuit Breakers 10A,MCB D CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

7In Stock

Rp919.502

Rp785.943

Rp654.952

Rp635.139

View

Min.: 1
Mult.: 1

Circuit Breakers 16A MCB DCHAR 1P+N 277VAC UL508

2D16UM
Altech
1: Rp873.270
25In Stock

Mfr. Part No.
2D16UM

Mouser Part No
845-2D16UM

Altech

Circuit Breakers 16A MCB DCHAR 1P+N 277VAC UL508

Learn More

Datasheet

25In Stock

Rp873.270

Rp830.707

Rp818.782

Rp796.033

View

Min.: 1
Mult.: 1

Circuit Breakers 20A, D CHAR, 2POLE 480Y/277VAC,UL489

2D20UL
Altech
1: Rp1.478.137
14In Stock

Mfr. Part No.
2D20UL

Mouser Part No
845-2D20UL

Altech

Circuit Breakers 20A, D CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

14In Stock

Rp1.478.137

Rp1.324.948

Rp1.263.672

Rp1.164.788

View

Min.: 1
Mult.: 1

Circuit Breakers 20A MCB DCHAR 1P+N 277VAC UL508

2D20UM
Altech
1: Rp873.270
22In Stock

Mfr. Part No.
2D20UM

Mouser Part No
845-2D20UM

Altech

Circuit Breakers 20A MCB DCHAR 1P+N 277VAC UL508

Learn More

Datasheet

22In Stock

Rp873.270

Rp801.904

Rp799.152

Rp780.622

View

Min.: 1
Mult.: 1

Circuit Breakers 20A,MCB D CHAR 2PL 480Y/277VAC, UL1077

2D20UR
Altech
1: Rp919.502
10In Stock

Mfr. Part No.
2D20UR

Mouser Part No
845-2D20UR

Altech

Circuit Breakers 20A,MCB D CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

10In Stock

Rp919.502

Rp785.943

Rp738.793

Rp617.343

View

Min.: 1
Mult.: 1

Circuit Breakers 2A MCB DCHAR 1P+N 277VAC UL508

2D2UM
Altech
1: Rp873.270
5In Stock

Mfr. Part No.
2D2UM

Mouser Part No
845-2D2UM

Altech

Circuit Breakers 2A MCB DCHAR 1P+N 277VAC UL508

Learn More

Datasheet

5In Stock

Rp873.270

Rp849.053

Rp793.831

Rp769.431

View

Min.: 1
Mult.: 1

Circuit Breakers 30A MCB DCHAR 1P+N 277VAC UL508

2D30UM
Altech
1: Rp873.270
9In Stock

Mfr. Part No.
2D30UM

Mouser Part No
845-2D30UM

Altech

Circuit Breakers 30A MCB DCHAR 1P+N 277VAC UL508

Learn More

Datasheet

9In Stock

Rp873.270

Rp854.373

Rp830.890

Rp808.692

Quote

Min.: 1
Mult.: 1

Circuit Breakers 4A, D CHAR, 2POLE 480Y/277VAC,UL489

2D4UL
Altech
1: Rp1.230.099
6In Stock

Mfr. Part No.
2D4UL

Mouser Part No
845-2D4UL

Altech

Circuit Breakers 4A, D CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

6In Stock

Rp1.230.099

Rp1.205.332

Rp1.174.327

View

Min.: 1
Mult.: 1

Circuit Breakers 8A, D CHAR, 2POLE 480Y/277VAC,UL489

2D8UL
Altech
1: Rp1.230.099
19In Stock

Mfr. Part No.
2D8UL

Mouser Part No
845-2D8UL

Altech

Circuit Breakers 8A, D CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

19In Stock

Rp1.230.099

Rp1.168.457

Rp1.091.770

View

Min.: 1
Mult.: 1

Circuit Breakers 16A MCB GCHAR 1P+N 277VAC UL508

2G16UM
Altech
1: Rp873.270
21In Stock

Mfr. Part No.
2G16UM

Mouser Part No
845-2G16UM

Altech

Circuit Breakers 16A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

21In Stock

Rp873.270

Rp830.707

Rp800.069

Rp763.561

View

Min.: 1
Mult.: 1

Circuit Breakers 2.5A MCB GCHAR 1P+N 277VAC UL508

2G2.5UM
Altech
1: Rp1.212.120
28In Stock

Mfr. Part No.
2G2.5UM

Mouser Part No
845-2G2.5UM

Altech

Circuit Breakers 2.5A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

28In Stock

Rp1.212.120

Rp1.043.704

Rp962.615

Rp816.580

View

Min.: 1
Mult.: 1

Circuit Breakers 20A MCB GCHAR 1P+N 277VAC UL508

2G20UM
Altech
1: Rp873.270
12In Stock

Mfr. Part No.
2G20UM

Mouser Part No
845-2G20UM

Altech

Circuit Breakers 20A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

12In Stock

Rp873.270

Rp846.851

Rp786.493

Rp762.827

View

Min.: 1
Mult.: 1

Circuit Breakers 25A MCB GCHAR 1P+N 277VAC UL508

2G25UM
Altech
1: Rp1.212.120
1In Stock

Mfr. Part No.
2G25UM

Mouser Part No
845-2G25UM

Altech

Circuit Breakers 25A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

1In Stock

Rp1.212.120

Rp873.270

Rp868.133

Rp792.731

View

Min.: 1
Mult.: 1

Circuit Breakers 6A MCB GCHAR 1P+N 277VAC UL508

2G6UM
Altech
1: Rp1.120.207
8In Stock

Mfr. Part No.
2G6UM

Mouser Part No
845-2G6UM

Altech

Circuit Breakers 6A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

8In Stock

Rp1.120.207

Rp1.021.505

Rp873.270

Rp802.821

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories 2 Ph Busbar 204.6mm 12Pin, 115A

2P16UL3/12
Altech
1: Rp709.073
31In Stock
54Expected 08/09/2026

Mfr. Part No.
2P16UL3/12

Mouser Part No
845-2P16UL3/12

Altech

Circuit Breaker Accessories 2 Ph Busbar 204.6mm 12Pin, 115A

Learn More

Datasheet

31In Stock

54Expected 08/09/2026

Rp709.073

Rp598.447

Rp577.532

Rp498.828

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories 2 Ph Busbar 137.3mm 8Pin, 4x2 pole, 80A

2P18U3/8
Altech
1: Rp597.529
42In Stock

Mfr. Part No.
2P18U3/8

Mouser Part No
845-2P18U3/8

Altech

Circuit Breaker Accessories 2 Ph Busbar 137.3mm 8Pin, 4x2 pole, 80A

Learn More

Datasheet

42In Stock

Rp597.529

Rp557.535

Rp514.055

Rp449.844

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar,2 Phase,18sqmm,PIN Type

2P18U3/10
Altech
1: Rp669.262
21In Stock

Mfr. Part No.
2P18U3/10

Mouser Part No
845-2P18U310

Altech

Circuit Breaker Accessories Busbar,2 Phase,18sqmm,PIN Type

Learn More

Datasheet

21In Stock

Rp669.262

Rp607.069

Rp586.155

Rp486.352

View

Min.: 1
Mult.: 1

Circuit Breakers 10A, C CHAR, 3POLE 480Y/277VAC,UL489

3C10UL
Altech
1: Rp1.845.241
9In Stock

Mfr. Part No.
3C10UL

Mouser Part No
845-3C10UL

Altech

Circuit Breakers 10A, C CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

9In Stock

Rp1.845.241

Rp1.814.786

Rp1.730.762

Rp1.690.400

View

Min.: 1
Mult.: 1

Circuit Breakers 1A MCB CCHAR 3 PL 480Y/277VAC UL508

3C1UM
Altech
1: Rp1.941.374
1In Stock

Mfr. Part No.
3C1UM

Mouser Part No
845-3C1UM

Altech

Circuit Breakers 1A MCB CCHAR 3 PL 480Y/277VAC UL508

Learn More

Datasheet

1In Stock

Rp1.941.374

Rp1.309.537

Rp1.262.021

Rp1.225.696

View

Min.: 1
Mult.: 1

Circuit Breakers 32A, C CHAR, 3POLE 480Y/277VAC,UL489

3C32UL
Altech
1: Rp2.416.352
6In Stock

Mfr. Part No.
3C32UL

Mouser Part No
845-3C32UL

Altech

Circuit Breakers 32A, C CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

6In Stock

Rp2.416.352

Rp2.041.726

Rp1.845.241

Rp1.762.317

View

Min.: 1
Mult.: 1

Circuit Breakers 4A MCB CCHAR 3 PL 480Y/277VAC UL508

3C4UM
Altech
1: Rp1.757.914
10In Stock

Mfr. Part No.
3C4UM

Mouser Part No
845-3C4UM

Altech

Circuit Breakers 4A MCB CCHAR 3 PL 480Y/277VAC UL508

Learn More

Datasheet

10In Stock

Rp1.757.914

Rp1.508.959

Rp1.429.704

Rp1.219.642

View

Min.: 1
Mult.: 1

Circuit Breakers 8A, C CHAR, 3POLE 480Y/277VAC,UL489

3C8UL
Altech
1: Rp2.416.352
11In Stock

Mfr. Part No.
3C8UL

Mouser Part No
845-3C8UL

Altech

Circuit Breakers 8A, C CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

11In Stock

Rp2.416.352

Rp2.041.726

Rp1.902.480

Rp1.690.951

View

Min.: 1
Mult.: 1

Circuit Breakers 15A, D CHAR, 3POLE 480Y/277VAC,UL489

3D15UL
Altech
1: Rp1.845.241
5In Stock

Mfr. Part No.
3D15UL

Mouser Part No
845-3D15UL

Altech

Circuit Breakers 15A, D CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

5In Stock

Rp1.845.241

Rp1.788.552

Rp1.670.220

Rp1.632.244

View

Min.: 1
Mult.: 1

Circuit Breakers 15A D Characteristic UL 508 3 POLE

3D15UM
Altech
1: Rp1.309.537
5In Stock

Mfr. Part No.
3D15UM

Mouser Part No
845-3D15UM

Altech

Circuit Breakers 15A D Characteristic UL 508 3 POLE

Learn More

Datasheet

5In Stock

Rp1.309.537

Rp1.277.432

Rp1.202.580

Rp1.171.942

View

Min.: 1
Mult.: 1

Altech Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support