| Part Number: | ULO | - | HD09 | - | HMK | - | 003 | / | 4 | - | MC |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Manufacturer ULO - ULO Electronics |
Product Code HD09 - Fixed product code for the listed HMK modules |
Module Family HMK - HMK power module; this breakdown covers crimp versions only |
Power Contacts 001 - One power contact, 100A; omit the signal field and its slash |
Signal Contacts 4 - Four 10A signal contacts; use only with three power contacts as 003/4 |
Insert Version MC - Male crimp insert |
HMK inserts occupy one module position and provide one, two, three or four power contacts, or three power contacts with four signal contacts. None of these inserts includes a PE contact. Select the exact contact layout, gender, termination and conductor range; a shared module size does not make different contact patterns interchangeable.
Axial screw versions provide two or three 40A contacts. The .1 and .2 suffixes distinguish conductor ranges. All model codes below use the ULO-HD09- prefix.
| Male model | Female model | Contacts | Rated current | Rated voltage | Impulse voltage | Wire range | AWG range | Strip length | Contact resistance |
|---|---|---|---|---|---|---|---|---|---|
| HMK-002.1-M(2.5-8mm²) | HMK-002.1-F(2.5-8mm²) | 2 | 40A | 1000V | 8kV | 2.5-8mm² | 14-9AWG | 11-12.5mm | ≤0.5mΩ |
| HMK-002.2-M(6-10mm²) | HMK-002.2-F(6-10mm²) | 6-10mm² | 10-8AWG | ||||||
| HMK-003.1-M(2.5-8mm²) | HMK-003.1-F(2.5-8mm²) | 3 | 690V | 2.5-8mm² | 14-9AWG | 5-11mm | ≤0.3mΩ | ||
| HMK-003.2-M(6-10mm²) | HMK-003.2-F(6-10mm²) | 6-10mm² | 10-8AWG |
Tighten axial screw terminals to 1.5N·m for 2.5mm² and 4mm² conductors, or 2N·m for 6mm² and 10mm² conductors. Apply each value only to a conductor size within the selected model's range.






Crimp carriers are available for one 100A contact or multiple 40A contacts. Their ratings and wire ranges depend on the exact layout. Select the required crimp contacts separately for the conductor and carrier; the illustrated empty carrier does not define a complete contact set.
| Male model | Female model | Contacts | Rated current | Rated voltage | Impulse voltage | Wire range | AWG range | Contact resistance |
|---|---|---|---|---|---|---|---|---|
| HMK-001-MC | HMK-001-FC | 1 | 100A | 830V | 8kV | 10-35mm² | — | ≤0.3mΩ |
| HMK-002-MC | HMK-002-FC | 2 | 40A | 1000V | 1.5-10mm² | 16-8AWG | ||
| HMK-003-MC | HMK-003-FC | 3 | 500V | 6kV | ||||
| HMK-004-MC | HMK-004-FC | 4 | 830V | 8kV | 1.5-6mm² | 16-10AWG |
Crimp stripping lengths are not specified here. Use the dimensions and preparation requirements of the selected contact.








HMK-003/4-MC and HMK-003/4-FC combine two contact sizes in one crimp module. Positions 1-3 are power circuits; positions 11-14 are signal circuits. Keep the conductor range and rating associated with each contact group.
| Contact group | Quantity | Rated current | Rated voltage | Impulse voltage | Wire range | AWG range | Contact resistance |
|---|---|---|---|---|---|---|---|
| Power | 3 | 40A | 830V | 8kV | 1.5-6mm² | 16-10AWG | ≤0.3mΩ |
| Signal | 4 | 10A | 0.14-2.5mm² | 26-14AWG | ≤3mΩ |


| Property | Specification |
|---|---|
| Module size / PE contact | 1 module / no PE contact |
| Connection standards | DIN EN 60664-1; DIN EN 61984 |
| Pollution degree | 3 |
| Rated voltage according to UL/CSA | 600V |
| Insulation resistance | ≥10000MΩ |
| Temperature limits | -40°C to +125°C |
| Mechanical life | ≥500 mating cycles |
| Insert material | Polycarbonate |
| Contact material / finish | Copper alloy / silver plated |
| Flammability | UL94V-0 |
| Color | Light grey, RAL 7032 |
| RoHS | Complies with applicable RoHS exemptions |