4 Housing Sizes (Small, Medium-Small, Medium, Large)
Double-Pole BMC are available in four (4) housing sizes. Each Double-Pole BMC size is available in multiple colors. As a safety feature, each color has a specific mechanical key slot. This provides an intuitive visual cue and mechanical fail-safe, preventing cross-mating connectors. Therefore, This feature eliminates the potential hazard of mating devices of different voltages.
Different housing/contact combinations provide a flexible means to deploy according to your specific requirements and help ensure connectors are mated correctly.

| Item No. | Description | Colors |
|---|---|---|
| BMC2S | Housing | BK BL GR GY OR RD YW |
| Accessories | ||
|---|---|---|
| BMC2S-EB-L | Environmental Boot – Load | BK |
| BMC2S-EB-S | Environmental Boot – Source | BK |
| BMC2S-FP | Cable Clamp | NA |
| BMC2S-DC1 | Rubber Dust Cover | BK |
| BMC2S-HD | Housing Handle | BK GR RD |
| Contacts | ||
|---|---|---|
| BMC5AG | Silver Plated Contact 035A | NA |
| BMC8AG | Silver Plated Contact 045A | NA |
| BMC14AG | Silver Plated Contact 050A | NA |

Low-resistance silver-plated or tin-plated (Reel) copper contacts support UL-rated currents up to 50 amps.
| Item No. | Description | Colors |
|---|---|---|
| BMC2MS | Housing | BL GY RD |
| Accessories | ||
|---|---|---|
| BMC2MS-DC1 | Housing Rubber Dust Cover | BK |
| BMC2MS-HD | Housing Handle | RD |
| Contacts | ||
|---|---|---|
| BMCMS14AG | Silver Plated Contact 080A | NA |
| BMCMS22AG | Silver Plated Contact 100A | NA |
| BMCMS38AG | Silver Plated Contact 120A | NA |

New extended range contacts expand wire size up to #2 AWG (38 mm²) allowing UL-rated currents up to 120 amps.
| Item No. | Description | Colors |
|---|---|---|
| BMC2M | Housing | BL GR OR RD YW |
| Accessories | ||
|---|---|---|
| BMC2M-DC1 | Housing Dust Cover Rubber | BK |
| BMC2M-DC2 | Housing Dust Cover PC | BK |
| BMC2M-HD | Housing Handle (2 Bolt) | RD |
| Contacts | ||
|---|---|---|
| BMCM14AG | Silver Plated Contact 080A | NA |
| BMC22AG | Silver Plated Contact 125A | NA |
| BMC38AG | Silver Plated Contact 150A | NA |
| BMC60AG | Silver Plated Contact 175A | NA |

Standard Housing uses up to 1/0 (60mm2) wire and allows currents up to 175 amps.
| Item No. | Description | Colors |
|---|---|---|
| BMC2L | Housing | BL GR GY OR RD YW |
| Accessories | ||
|---|---|---|
| BMC2L-DC1 | Housing Rubber Dust Cover | BK |
| BMC2L-HD | Housing Handle (2 Bolt) | RD |
| Contacts | ||
|---|---|---|
| BMC70AG | Silver Plated Contact 250A | NA |
| BMC80AG | Silver Plated Contact 275A | NA |
| BMC100AG | Silver Plated Contact 300A | NA |
| BMC150AG | Silver Plated Contact 350A | NA |

Up to 300 mcm (150mm²), wires support UL-rated currents up to 350 amps.
BMC 050 (Small), BMC 120 (Medium-Small), BMC 175 (Medium), BMC 350 (Large)
Double-Pole BMC connectors are widely used in various applications, including automotive, renewable energy, industrial machinery, and more. The availability of the following accessories enhances the versatility and reliability of the connectors, making them suitable for a wide range of industries and environments. As with any accessory, it is essential to verify compatibility with the specific Double-Pole BMC connector model and consult the KST’s guidelines for proper usage and installation. Incorporating these accessories with Double-Pole BMC connectors ensures a secure and efficient power connectivity solution, promoting safety and longevity in electrical connections.
| Item No. | Description | Colors |
|---|---|---|
| BMC2S-FP | Housing Cable Clamp | NA |
| BMC2M-FP | Housing Cable Clamp | NA |
Cable clamps are essential accessories designed to provide strain relief and secure cable management for the Double-Pole BMC connectors. These clamps ensure that the cables connected to the connectors are held securely in place, preventing undue stress or tension on the connections. Cable clamps help maintain reliable electrical connections, especially in applications where the connectors are exposed to vibrations or movements.

| Item No. | Description | Colors |
|---|---|---|
| BMC2S-EB-L | Environmental Boot – Load | BK |
| BMC2S-EB-S | Environmental Boot – Source | BK |
Environmental boots are protective coverings that fit over the Double-Pole BMC connectors to provide added protection against dust, moisture, and other environmental elements. These boots create a barrier, safeguarding the connectors from potential damage and maintaining their performance in challenging conditions. Environmental boots are particularly useful in outdoor or rugged environments, where exposure to harsh weather or contaminants may occur.

| Item No. | Description | Colors |
|---|---|---|
| BMC2S-HD | Housing Handle | BK GR RD |
| BMC2MS-HD | Housing Handle | RD |
| BMC2M-HD | Housing Handle (2 Bolt) | RD |
| BMC2L-HD | Housing Handle (2 Bolt) | RD |
Housing handles are ergonomic accessories designed to facilitate the handling and installation of Double-Pole BMC connectors. These handles provide a comfortable grip, making it easier for users to insert and remove connectors during assembly and maintenance tasks. Housing handles improve the overall usability of the connectors, especially in applications where frequent connection and disconnection are required.

| Item No. | Description | Colors |
|---|---|---|
| BMC2S-DC1 | BMC 050 Housing Rubber Dust Cover | BK |
| BMC2MS-DC1 | BMC 120 Housing Rubber Dust Cover | BK |
| BMC2M-DC2 | BMC 175 Housing Dust Cover PC | BK |
| BMC2M-DC1 | BMC 175 Housing Dust Cover Rubber | BK |
| BMC2L-DC1 | BMC 350 Housing Rubber Dust Cover | BK |
Rubber and PC dust covers offer additional protection for Double-Pole BMC connectors when not in use. These covers shield the connector openings, safeguarding them against dust, dirt, and debris that could compromise the connections over time. The dust covers help maintain the cleanliness and integrity of the connectors, ensuring optimal performance and extending their service life.

BMC 175 GX (Medium), BMC 350 GX (Large)
Double-Pole BMC GX Series builds on the capability of the standard Double-Pole BMC Series, Each of the two housing sizes is available in multiple colors, each with a specific mechanical key slot. This provides an intuitive visual cue and mechanical fail-safe, preventing accidental cross-mating, and therefore eliminating the potential hazard of mating connectors of different voltages.
In addition to two standard primary power contacts, GX housings support capacity for 2 auxiliary power/signal poles.

2-Pole BMC connectors feature a durable one-piece thermal polycarbonate housing integrating stainless steel spring backplates to maintain consistent “contact force” between mated contacts, ensuring low resistance and high-electrical efficiency. The two sides of a 2-Pole BMC connector are identical.
This genderless connector can be flipped 180 degrees and mated with an identical housing. This provides quick and easy assembly while reducing costs by eliminating the need to purchase, maintain, and store different SKUs, simplifying critical inventory management.
The 2-Pole BMC GX series of connectors come in 2 housing sizes (Medium, and Large) with each housing size supporting multiple electrical contacts (AMP) options. Each of the 2 housing sizes is available in multiple colors, each with a specific mechanical key slot. This provides an intuitive visual cue and mechanical fail-safe, preventing cross-mating connectors and devices of different voltages.
All the connectors are UL-rated to 600 volts. Contacts are traditionally silver-plated to minimize electrical resistance while offering exceptional durability and reliability.
In addition to two standard primary power contacts, GX housings support capacity for 2 auxiliary power/signal contacts. Nested between the 2 primary power contacts is additional space to accommodate two 1-Pole BMC 045 power/signal connectors.
Both Single-Pole BMC 045 housings can be used in the auxiliary ports including:
Each of the 2 GX housing sizes is available in multiple colors, each with a specific mechanical key slot. This provides an intuitive visual cue and mechanical fail-safe, preventing cross-mating connectors.
Please note all standard housings and contacts can be purchased separately or in combination sets.
| Item No. | Description | Colors |
|---|---|---|
| BMCGX2M | Housing | BL GR GY OR RD YW |
| Accessories | ||
|---|---|---|
| BMCGX2M-HD | Housing Handle (4 Bolt) | RD |
| Contacts | ||
|---|---|---|
| BMCGM35AG | Silver Plated Contact 160A | NA |
| BMCGM60AG | Silver Plated Contact 175A | NA |

Standard Housing uses up to 1/0 (60mm2) wire and allows currents up to 175A amps.
| Item No. | Description | Colors |
|---|---|---|
| BMCGX2L | Housing | BK BL GR GY RD YW |
| Accessories | ||
|---|---|---|
| BMCGX2L-HD | Housing Handle (4 Bolt) | GY RD |
| Contacts | ||
|---|---|---|
| BMCGM35AG | Contact 160A | NA |
| BMCGM50AG | Contact 175A | NA |
| BMCGM70AG | Contact 250A | NA |
| BMCGM80AG | Contact 175A | NA |
| BMCGM100AG | Contact 300A | NA |
| BMCGM150AG | Contact 350A | NA |

Up to 300 mcm (150mm2), wires support UL rated current up to 350 amps
4 Silver plated contact providing 160A, 250A, 275A, 300A and 350A options

BMC 175 GX (Medium), BMC 350 GX (Large)
Double-Pole BMC connectors are widely used in various applications, including automotive, renewable energy, industrial machinery, and more. The availability of optional accessories enhances the versatility and reliability of the connectors, making them suitable for a wide range of industries and environments. As with any accessory, it is essential to verify compatibility with the specific Double-Pole BMC connector model and consult the manufacturer’s guidelines for proper usage and installation. Incorporating these accessories with Double-Pole BMC connectors ensures a secure and efficient power connectivity solution, promoting safety and longevity in electrical connections.
| Item No. | Description | Colors |
|---|---|---|
| BMCGX2M-HD | BMC 175 Housing GX Handle (4 Bolt) | RD |
| BMCGX2L-HD | BMC 350 Housing GX Handle (4 Bolt) | GY RD |
Housing handles are ergonomic accessories designed to facilitate the handling and installation of Double-Pole BMC GX connectors. These handles provide a comfortable grip, making it easier for users to insert and remove connectors during assembly and maintenance tasks. Housing handles improve the overall usability of the connectors, especially in applications where frequent connection and disconnection are required.

BMC WP 050 (Small), BMC WP 120 (Medium-small), BMC WP 300 (Large)
In extreme environments where high power and waterproof protection are required, KST has you protected. The connectors are IP67 rated (waterproof) ensuring the connectors are able to withstand water for up to 30 minutes at depths of 1 meter under mated conditions.
Non-conductive swing latches & tabs ensure connectors remain seated and sealed and safeguard against accidental disconnection due to extreme vibration.
Externally mounted cable clamps secure the cable to the housing and provide stable wire management.
It is important to note that unlike the KST standard and GX series of Double-Pole BMC, KST’s Double-Pole BMC WP Series are not genderless, and come as separate male and female combination sets.

Double-Pole BMC WP Series features a durable one-piece thermal polycarbonate housing integrating stainless steel spring backplates to maintain consistent “contact force” between mated contacts, ensuring low resistance and high electrical efficiency.
The Double-Pole BMC WP Series of connectors come in 3 housing sizes (Small, Medium-small, and Large) with each housing size supporting multiple electrical contacts (AMP) options. Each of the three (3) housing sizes is available in multiple colors, each with a specific mechanical key slot. This provides an intuitive visual cue and mechanical fail-safe, preventing cross-mating connectors and devices of different voltages.
All the connectors are UL-rated to 600 volts. Contacts are traditionally silver-plated to minimize electrical resistance while offering exceptional durability and reliability.
It is important to note that unlike the KST standard and GX series of Double-Pole BMC, KST’s Double-Pole BMC WP Series are not genderless, and come as separate male and female combination sets.

| Item No. | Description | AWG (mm²) |
|---|---|---|
| BMCWPF2S-5-SET | 12-10 (3-6) | |
| BMCWPM2S-5-SET | 12-10 (3-6) | |
| BMCWPF2S-8-SET | 8 (8) | |
| BMCWPM2S-8-SET | 8 (8) | |
| BMCWPF2S-14-SET | 6 (13) | |
| BMCWPM2S-14-SET | 6 (13) |

2-Pole 050 BMC Sealed Connectors (Small) are the smallest power connectors of this IP67 certified series.
Each housing securely holds two power contacts designed with swiping technology.
| Item No. | Description | AWG (mm²) |
|---|---|---|
| BMCWPF2MS-14-SET | 6 (13) | |
| BMCWPM2MS-14-SET | 6 (13) | |
| BMCWPF2MS-22-SET | 4 (21) | |
| BMCWPM2MS-22-SET | 4 (21) | |
| BMCWPF2MS-38-SET | 2 (38) | |
| BMCWPM2MS-38-SET | 2 (38) |

2-Pole Sealed 120 Connectors (Medium-small) are a wire-to-wire IP67 certified solution.
| Item No. | Description | AWG (mm²) |
|---|---|---|
| BMCWPF2L-70-SET | 2/0 (70) | |
| BMCWPM2L-70-SET | 2/0 (70) | |
| BMCWPF2L-80-SET | 3/0 (80) | |
| BMCWPM2L-80-SET | 3/0 (80) | |
| BMCWPF2L-100-SET | 4/0 (100) | |
| BMCWPM2L-100-SET | 4/0 (100) |

2-Pole Sealed 300 Connectors (Large) are a wire-to-wire IP67 certified solution.
The Double-Pole BMC Integrated Auxillary Series – High Power Compact Connectors with Safety in Mind
The Double-Pole BMC Integrated Auxillary presents a range of high-power connectors, carefully engineered within a compact and ergonomic housing to prioritize safety in applications where DC voltages surpass 30 volts, posing potential health risks. With a robust design, these connectors offer protection against accidental contact with live circuits, ensuring a secure and reliable power transmission solution.
Key Features:
Enhance safety, efficiency, and reliability in your power connections with the Douple-Pole BMC IA family of compact connectors. Designed to meet high-power demands while prioritizing user safety, these connectors are well-suited for applications where robust performance and secure contact are crucial.
Experience the confidence of a contact-proof interface, the versatility of various configurations, and the convenience of integrated auxiliary and ground positions, all housed within a single compact connector. Trust in the Double-Pole BMC IA family to deliver seamless power connections, ensuring your critical operations run smoothly and safely.

Contacts:
BMC5AG – Silver Plated Contact 035A
BMC8AG – Silver Plated Contact 045A
BMC14AG – Silver Plated Contact 050A

Housing Colors: Black, Blue, Gray, Green, Red, Yellow, White
Contacts:
BMC5AG – Silver Plated Contact 035A
BMC8AG – Silver Plated Contact 045A
BMC14AG – Silver Plated Contact 050A
Ground Contact:
BMC14AGG – Silver Plated Ground Contact 050A

Housing Colors: Black, Blue, Brown, White
Contacts:
BMC5AG – Silver Plated Contact 035A
BMC8AG – Silver Plated Contact 045A
BMC14AG – Silver Plated Contact 050A
Pin Contacts:
16-14 AWG (1.0 to 1.5mm) Pin Contact 10A
24-20 AWG (0.50 to 0.75mm) Pin Contact

Housing Colors: Black, Blue, Brown, Gray, Green, White
This data header/column shows the current product offerings which may include male and female terminals, made from one or more of the following materials:
0 – Brass materials support connection temperatures of 110°C. Unplated brass is often used in optimal environments and application conditions.
1 – Copper Alloy materials support connection temperatures of over 120°C depending on the type. Unplated Copper Alloy is more expensive but provides a higher range of operating temperatures and malleability.
2 – Phosphor Bronze materials support connection temperatures of 130°C. Phosphor bronze is used in applications where brass would normally be susceptible to corrosion, for example in subzero freezing environments or when ammonia is present.
3 –Beryllium copper exhibits a wide range of properties, including:
4 – Copper is a good conductor and is malleable. It is often used in combination with other materials such as stainless steel to achieve a greater operating temperature range while providing increased tensile strength and durability.
5 – Stainless Steel is usually used in combination with other materials such as copper to achieve an operating temperature range and good conductivity while maintaining tensile strength and durability. High fatigue strength—also known as endurance strength—making it suitable for heavy cyclic load applications
Wire size is usually measured in American wire gauge (AWG), a standard for non-ferrous wire conductor sizes. The term “gauge” refers to the wire’s diameter. The higher the gauge number, the smaller the diameter and the thinner the wire. As a rule, thicker wire carries more current because there is less electrical resistance over a given length.
| A.W.G. | 28(.08) | 26(.13) | 24(.02) | 22(.03) | 20(.05) | 18(.85) | 16(1.25) | 14(2.0) | 12(3.0) | 10(6.0) |
| AMP (A) | 0.7 | 1 | 2 | 3 | 4 | 7 | 10 | 15 | 20 | 24 |
Wire size is usually measured in American wire gauge (AWG), a standard for non-ferrous wire conductor sizes. The term “gauge” refers to the wire’s diameter. The higher the gauge number, the smaller the diameter and the thinner the wire. As a rule, thicker wire carries more current because there is less electrical resistance over a given length.
| A.W.G. | AMP (A) |
| 28(.08) | 0.7 |
| 26(.13) | 1 |
| 24(.02) | 2 |
| 22(.03) | 3 |
| 20(.05) | 4 |
| 18(.85) | 7 |
| 16(1.25) | 10 |
| 14(2.0) | 15 |
| 12(3.0) | 20 |
| 10(6.0) | 24 |

