Battery Terminal Fuse Holders & Fuses

SafetyHub 100 Fuse Block
Blue Sea Systems
The SafetyHub 100 combines an ignition protected fuse block and an integrated connecting plug. It is safe for use on petrol powered boats, reduces wiring connections, and consolidates up to seven fused circuits.
- Three 30A−200A MIDI®/AMI® fuses ideal for high-amp circuits including panel feeds, windlasses, and stereo amplifiers.
- Four 1A−20A ATO®/ATC® fuses ideal for circuits including bilge pumps, alarms, and clock memory.
- Sealed cover protects fuses from the harsh marine environment: IP66 rating—protected against powerfulwater jets.
- Integrated connector plugs eliminate loose wires and provide a secure, waterproof connection
Ignition protected fusing meets Coast Guard and ABYC requirements for installation on petrol or diesel
powered boats.

Specifications
Amperage Maximum Operating (combined) 280 Amps*
Nominal Operating Voltage 12 Volts DC
Minimum Input Cable Size to Meet Rating 4/0 AWG (120 mm²)
Stud Size M8 x 1.25 mm
Stud Torque 15 ft-lb (20.3 N-m)
Recommended Ring Terminal M8 (5/16")
MIDI®/AMI® 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
| BSS7725 | SafetyHub100 Fuse Blok | $76.51 |
SafetyHub 150 Fuse Block

Blue Sea Systems
The SafetyHub 150 is an ignition protected fuse block with screw termination. It is safe for use on petrol powered boats, reduces wiring connections, and consolidates up to ten fused circuits. It can be used for Main or Branch DC power distribution
- Four 30A−200A MIDI®/AMI® fuses ideal for high-amp circuits including panel feeds, windlasses, and
stereo amplifiers
- Six 1A−30A ATO®/ATC® fuses ideal for low-amp circuits including bilge pumps, electronics, and lights
- Sealed cover protects fuses from the harsh marine environment: IP66 rating—protected against powerful
water jets
- Negative bus provides common location for negative collection
- Circuit identification label with write-on capability
- Fuse puller easily removes ATO®/ATC® fuses
- Cover provides storage space for two spare ATO®/ATC® fuses and two spare MIDI®/AMI® fuses
- Ignition protected fusing meets Coast Guard and ABYC requirements for installation on petrol or diesel
powered boats
- Fuses sold separately

Specifications
Amperage Maximum Operating (combined) 280 Amps*
Operating Voltage 12V DC, 24V DC, 32V DC
Minimum Input Cable Size to Meet Rating 4/0 (120 mm²)
Stud Size M8 x 1.25
Stud Torque 15 ft-lb (20.3 N-m)
Recommended Ring Terminal M8 (5/16")
AMI®/MIDI® Fuse Block Specifications
Amperage Maximum Operating (per block) 280 Amps†
Amperage Maximum Operating (per circuit) 170 Amps†
Fuse Amperage Available 30–200 Amps
Screw Size M5 x .8 x 10
Screw Torque 27 lb-in (3.0 N-m)
ATO®/ATC® Fuse Block Specifications
Amperage Maximum Operating (per block) 50 Amps†
Amperage Maximum Operating (per circuit) 25 Amps†
Fuse Amperages Available 1–30 Amps
Screw Size #8-32 x 6.5 mm
Screw Torque 18 in-lb (2.0 N-m)
| BSS7748 | SafetyHub150 Fuse Blok | $149.98 |
SafetyHub 250 Fuse Block with Remote Battery Switch

Blue Sea Systems
The SafetyHub 250 combines an ignition protected fuse block with a remote battery switch and integrated connecting plugs. It is safe for use on petrol 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.
- 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 petrol 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.

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

| BSS7727 | SafetyHub250 Fuse Blok | $230.00 |
Battery Terminal Fuse Holders
Blue Sea Systems
- Compact, high-amp fuse—Appropriate for DC Main, inverter, windlass, and bow thruster circuit protection.
- Provides high current protection in tight space constraints.
- Weatherproof—suitable for small open-cockpit boats and other harsh environments.
- Insulating nut and cap prevents accidental shorts.
- Use 3/8" (M10) ring terminal.
- Shank of fiber washer must seat inside ring terminal.


| Specifications | |||
| Voltage | 12 Volts to 58 Volts DC | ||
| Terminal Stud | 10 mm | ||
| Fuses Available | 30-300 Amperes DC | ||
| BSS5191 | Fuse Block Term 30-300 | $26.66 |

Battery Terminal Fuse
- Interrupt Rating satisfies ABYC requirements for DC Main circuit protection on large battery banks.
- Ignition protected—safe for installation aboard petrol powered boats.
- Clear window—visual indication of blown condition.
- Color coded for each amperage.
| Specifications | |||
| Interrupt Rating | 10,000 Amperes@14 Volts DC. 5,000 Amperes@32 Volts DC. 2,000 Amperes@58 Volts DC. | ||
| Voltage | 12 Volts to 58 Volts DC | ||
| Standards | Meets SAE J1171 external ignition protection requirements | ||
| IP Rating | IP66—withstands water from heavy seas | ||
ST Blade Fuse Blocks
Fuse Holder
Blue Sea Systems
- Clear insulating cover with label recesses accept Small Format Labels
- Cover Satisfies ABYC/USCG requirements for insulation
- Tin-plated copper buses and fuse clips give 30 Amperes rating per circuit
- Accepts ATO and ATC fast acting blade fuses




| Specifications | |||
| Cover Material | Polycarbonate | ||
| ATO/ATC Fuses Available | 1 to 30 Amperes | ||
| Maximum Amperage Per Circuitl | 30 Amperes | ||
| Maximum Amperage per Block | 100 Amperes | ||
| Maximum Voltage | 32V DC | ||
| Base Material | Reinforced Polycarbonate | ||
| SEA Fuse Blocks | |||
| BSS5025 | Fuse Block Blue Seas 6 | $60.99 | |
| BSS5026 | Fuse Block Blue Sea 12 | $74.99 | |
| BSS5028 | FUSE BLOCK ST BLADE 6 | $53.99 | |
| BSS5029 | FUSE BLOCK ST BLADE 12 | $69.99 | |
SEA Fuses & Fuse Holder
Fuse Holder
Blue Sea Systems
- The most economical system for 100-300 Ampere fusing
- Insulating cover satisfies ABYC/USCG requirements and cover breakouts allow wire access in any direction
- For use on systems up to 32V DC
5/16" stud terminals accept 5/16" (M8) Ring - Terminals, 14AWG to 2/0 AWG Wire
- Stainless steel studs provide resistance to corrosion and high torquing for excellent electrical contact
- UL 94-V0 base resists high heat
Insert molded studs ensure secure fuse mounting
| Specifications | |||
| Cover Material | Polycarbonate | ||
| Maximum Amperage | 300 Amperes DC | ||
| Maximum Voltage | 32V DC | ||
| SEA Fuse Blocks | |||
| BSS5001 | Discontinued USE 7721 | $37.99 | |

SEA Fuses
- Most economical fuse for 100-300 Ampere circuit protection
- For use with SEA Fuse Block













