Onka MRK-P 35mm² Stud Rail Terminal Block With Snap-Shut Lid, Grey
The Onka MRK-P range offers great value, fully encapsulated DIN rail stud terminals. This heavy-duty stud (bolt) connection terminal accepts cable up to 35mm² CSA and is sized for high-current power distribution circuits where standard screw or push-fit terminals aren't rated highly enough.
Integrated snap-shut lid included as standard. A hinged lid snaps shut over the live stud connection for touch safety, and an end plate is embedded in the body. Many competing stud terminals are supplied without a cover, or need a separate cover accessory buying on top – with the MRK-P range there are no extra covers or end plates to purchase.
- M8 stud/bolt connection for cable up to 35mm² CSA, rated 125A at 1000V
- Integrated snap-shut lid included – no separate cover accessory needed
- Embedded end plate – no separate end plate needed
Suitable for:
- 35 x 7.5mm DIN Rail (Top Hat Rail)
- 35 x 15mm DIN Rail (Top Hat Rail)
- Matches Old Onka Part Number 2322
Technical Data
| Connection Type | Stud (bolt), M8 |
| Max cable CSA | 35mm² |
| Voltage | 1000V |
| Current | 125A |
| Colour | Grey |
| Cover | Integrated snap-shut lid (included) |
| Body / Legs / Cover | PA6.6 |
| Bolt / Nuts | Steel |
| Bridge | Copper |
| Dimensions (mm) | |
| A | 107 |
| B | 50.8 |
| C | 35 |
| D | 40 |
| E | 27 |
| F | 58.5 |
| G | 76.5 |
| H | 16.3 |
Frequently Asked Questions
What cable size and rating is this?
Cable up to 35mm² CSA – the size in the product name is the maximum conductor cross-section. Rated 125A at 1000V, per Onka's official datasheet.
Why a stud terminal instead of screw or push-fit?
Stud (bolt) terminals are the standard connection method for heavier power cables at 35mm² and above, where a bolted lug connection is more secure than a screw clamp. Two cable lugs can be mounted on each side of the stud.
Is a cover included, or do I need to buy one separately?
It is included. Every MRK-P terminal has an integrated hinged lid that snaps shut over the live stud connection – unlike many alternatives, there is no separate cover accessory to buy.
Do you stock a smaller size?
Yes – see our MRK-P 25mm² / 101A stud terminal for lighter cable runs.
Do you stock the next size up?
Yes – see our MRK-P 50mm² / 150A stud terminal for larger cable runs.
Industry Applications
- Power distribution panels — heavy-gauge incoming/outgoing feeder terminations
- Switchgear & distribution boards — bolted connections for high-current circuits
- Rail, marine & renewable energy — resilient mechanical connection where vibration resistance matters