OPK Series Push In Connection Rail Fused Terminal Blocks
Onka manufacture great value fully encapsulated DIN rail terminals. The OPK Series offer unrivalled performance in push fit cable termination. This fused version accepts a 5x20mm glass fuse (sold separately) directly in-line, giving 6.3A-rated circuit protection without a separate fuse holder.
- Accepts standard 5 x 20mm fuse, fast lever operation
- Can be linked with commoning bars on input side for fast wiring
- Typically used in control panels for distribution of DC power supply
- No need to purchase additional end plates - terminal has an embedded end plate
- Terminals are symmetrical - does not matter which way around they are mounted
- Accepts solid conductors or crimped ferrules - lock into place without tools
- Save time and drive down costs with fast installation and simplified accessories
Suitable for:
- 35 x 7.5mm DIN Rail (Top Hat Rail)
- 35 x 15mm DIN Rail (Top Hat Rail)
- Matches Old Onka Part Number 2482
Simple Cross Connection Method
Cross connections or commoning can be achieved using simple push in bridges. The cross connector strips can be cut down to link the correct number of terminals. This 2.5mm terminal uses the 2.5mm 10-way cross connection bridge.
Technical Data
| Body | PA6.6 |
| Bridge | Copper |
| Spring | Stainless Steel |
| Temperature | -40°C,+140°C |
| Cable Strip L. | 9mm |
| Data | TSE/CE |
| Voltage | 750V |
| Current | 6,3A |
| Section | 2,5mm² |
| Norm | EN-60947-7-3 |
| Dimensions (mm) | |
| A | 68.3 |
| B | 33 |
| C | 34.5 |
| D | 5.9 |
Alternative to Weidmuller WSI 6 1011000000 (screw connection)
Alternative to Wago TopJob S 2202-1911 (push-in connection)
Frequently Asked Questions
What cable size does this terminal accept?
2.5mm² solid or ferruled conductors, 9mm strip length.
What fuse does it take?
A standard 5x20mm glass fuse (sold separately) — see our 5x20mm glass fuse range for matching ratings.
Do I need any tools to wire it?
No — it's a push-fit design, so conductors lock in without a screwdriver.
Can I bridge several of these together?
Yes, using the 2.5mm 10-way cross connection bridge (linked above), cut down to the number of poles needed.
Is this compatible with my existing Weidmuller or Wago terminals?
It's the same footprint and rating as the Weidmuller WSI 6 (screw connection) and Wago TopJob S 2202-1911 (push-in connection, like this one).
Industry Applications
- Control panel building — in-line fuse protection without extra hardware
- DC power distribution — commonly used for individual circuit protection on DC supply rails
- OEM machine builders — cost-effective alternative to premium European brands

