Onka MRK-P 150mm² Stud Rail Terminal Block With Snap-Shut Lid, Grey
The Onka MRK-P range is designed for terminating large CSA cables on DIN rail – perfect for high current applications where conventional rail terminals are not suited. This size accepts cable up to 150mm² CSA.
Ideal for power connections in rail and mobile systems, photovoltaic (PV) and industrial applications including electrical control panels and automation.
Integrated snap-shut lid included as standard. Each side of the terminal has its own hinged lid that snaps shut over the M12 stud connection, keeping the termination fully insulated and touch-safe. Many competing stud terminals are supplied without a cover, or need a separate cover accessory buying on top – with the MRK-P range it is built in.
Through terminal with an M12 threaded connection on both sides. Please note these terminals are sold individually.
✔ Secure connection for high-section cables
✔ Maximum resistance against vibration
✔ Fully insulated by integrated snap-shut lids – no separate cover to buy
✔ High resistance against mechanical stress with the bolt connection and high tightening torque
✔ Longer operational facility lifecycle and minimum voltage drops with lossless conductor structure
Matches Old Onka Part Number 2422
Technical Data
| Max cable CSA (mm²) | 150 |
| Voltage | 1000V |
| Current | 309A |
| Bolt | M12 |
| A(mm) | 139.5 |
| B(mm) | 70 |
| C(mm) | 35 |
| D(mm) | 60 |
| E(mm) | 41.4 |
| F(mm) | 79 |
| G(mm) | 94.6 |
| H(mm) | 17.3 |
| Body | PA6.6 |
| Legs | PA6.6 |
| Cover | PA6.6 integrated snap-shut lid (included) |
| Bolt | Steel(8.8) |
| Nut | Steel(INOX) |
| Bridge | Copper |
| Conductive type | tin plated electrolytic bar |
| Working temperature | -40°C,+140°C |
| Assembly type | 35mm DIN RAIL + screw to background |
| Torque | 14Nm |
| Bridging busbar section | 150mm² |
Frequently Asked Questions
What cable size does this accept?
Cable up to 150mm² CSA – the size in the product name is the maximum conductor cross-section. Connection is via an M12 threaded stud, rated 309A at 1000V.
Is a cover included, or do I need to buy one separately?
It is included. Every MRK-P terminal has an integrated hinged lid on each side that snaps shut over the stud connection – unlike many alternatives, there is no separate cover accessory to buy.
How is it mounted?
35mm DIN rail plus screw-to-background fixing.
Is this sold individually or as a kit?
Sold individually – each terminal has an M12 threaded connection on both sides.
Do you stock a smaller size?
Yes – see our MRK-P 120mm² / 269A stud terminal for lighter cable runs.
Do you stock the next size up?
Yes – see our MRK-P 185mm² / 353A stud terminal for larger cable runs.
Industry Applications
- Photovoltaic (PV) installations — high-current DC connections for solar arrays
- Rail & mobile systems — vibration-resistant high-current terminations
- Industrial control panels — large CSA cable termination where standard rail terminals aren't rated