PN 7727 - SafetyHub 250 Fuse Block with Remote Battery Switch
- Local control knob switches high-amp circuits for emergency shutdown or servicing
- Battery control from a remote location increases safety and convenience
- Up to three switched 30A−200A MIDI®/AMI® fuses [sold separately] ideal for high-amp circuits including panel feeds, windlasses, and stereo amplifiers
- Four 24-hour 1A−20A ATO®/ATC® fuses [sold separately] ideal for circuits including bilge pumps, alarms, and clock memory
- Integrated connector plugs eliminate loose wires and provide a secure, waterproof connection
- Ignition protected fuse block meets Coast Guard and ABYC requirements for installation on gasoline or diesel boats
- Included in retail packaging—Remote Control Contura Switch PN 2155, Remote Control Contura Switch Connector Plug with 12" harness PN 7730B, ATO®/ATC® Fuse Connector Plug with 12" harness PN 7731B, and Engine Circuit Link Bus PN 7732B
The SafetyHub 250 combines an ignition protected fuse block with a remote battery switch and integrated connecting plugs. It is safe for use on gasoline powered boats, reduces wiring connections, and consolidates up to seven fused circuits. The SafeyHub 250 allows battery control from a remote location or manually for emergency shutdown or servicing.
| Specifications | |
| Amperage Maximum Operating (combined) | 280 Amps* |
| Operating Voltage | 12 Volts DC |
| Minimum Input Cable Size to Meet Rating | 4/0 AWG (120mm²) |
| Stud Size | M8 x 1.25 |
| Stud Torque | 15 ft-lb (20.3 N-m) |
| Recommended Ring Terminal | M8 (5/16") |
| Internal Battery Switch | |
| Continuous Amperage Rating | 240 Amps |
| Cranking Rating: 10 sec. | 1,000 Amps |
| AMI®/MIDI® Fuse Block Specifications | |
| Amperage Maximum Operating (per block) | 240 Amps† |
| Amperage Maximum Operating (per circuit) | 170 Amps† |
| Fuse Amperage Available | 30–200 Amps |
| Screw Size | M5 x .8 x 10 |
| Screw Torque | 27 in-lb (3.0 N-m) |
| ATO®/ATC® Fuse Block Specifications | |
| Amperage Maximum Operating (per block) | 50 Amps† |
| Amperage Maximum Operating (per circuit) | 20 Amps† |
| Fuse Amperages Available | 1–20 Amps |
| * Wire Size and Current Rating Table | ||
| AWG Wire Size | Metric Wire Size | Amperage |
| 4/0 AWG | 120 mm² | 280A |
| 2/0 AWG | 70 mm² | 240A |
| 1 AWG | 50 mm² | 180A |
| 4 AWG | 25 mm² | 125A |
† Ratings are dependent on input cable sized for appropriate amperages
| Remote Control Switch Specifications | |
| Contura Control Switch | SPDT ON-ON |
| Operating Temperature Range | -40°C to 85°C |
| LED Rating | 100,000 hours 1/2 life |
Certifications & Agency Standards
Marked- Meets ISO 8846 ignition protection, and SAE J1171 external ignition protection requirements
SafetyHub Comparison

Product Line
| PN | Description | Manual Control | Weight Lb (Kg) |
| 7727 | Fuse Block with Remote Battery Switch |
Yes | 2.1 (1.0) |


