Projoy Battery Isolator 160V 80A DC MCB
Projoy Electric Projoy Battery Isolator 160V 80A DC MCB
Projoy Battery Isolator 160V 80A DC MCB
Projoy Electric PEBS-L DC miniature circuit breaker — Overload and short-circuit protection that resets, and does the isolating as well.
A fuse clears a fault once and is then scrap. A DC miniature circuit breaker does the same job and resets, and it doubles as the isolator, which is why it has largely replaced the fuse-and-switch approach on smaller battery installations.
About the Projoy Electric PEBS-L DC miniature circuit breaker
The PEBS-L is built for exactly that position: between a battery and a hybrid inverter, protecting against both overload and short circuit. Projoy's own designing criterion is the arc — scientific arc extinguishing and a flash barrier, because a DC arc has no zero crossing to help put it out.
It is tested to EN 60947-2 and AS/NZS IEC 60947.2:2015, breaks 10 kA ultimate and 7.5 kA service, and is non-polarity, so it cannot be wired in backwards.
What does this fit?
This is the resettable DC protection and isolation between a battery and a hybrid inverter.
Rated 160 V DC across two poles, so it suits 48 V and 51.2 V lithium banks and the high-current side of a hybrid inverter. It is IP40 on its own: outdoors or in a damp position it belongs in the weatherproof enclosure.
The products it is ordered with:
What the job needs
The details that decide whether this suits the system:
- These are 2-pole devices. The 160 V DC rating is the two-pole rating; a single pole is rated 80 V DC.
- Terminal capacity is 2.5 – 35 mm² at 2.0 – 3.5 Nm. On a 100 A or 125 A circuit, check the cable the design calls for will actually land in it before ordering.
- Icu is 10 kA and Ics 7.5 kA. Rated insulation voltage 500 V, impulse withstand 6 kV, overvoltage category III, pollution degree 3.
- The breaker itself is IP40 with an IP20 wiring port, so outdoors or in a damp position it needs the weatherproof enclosure.
- DIN rail mounted, 108 × 89 × 75.5 mm on the 125 A frame, 0.12 kg per pole.
- −30 °C to +70 °C operating, up to 2,000 m.
- Electrical life is an average of 1,000 cycles and mechanical life 10,000 — it is protection first and a switch second.
Where this earns its place
The PEBS-L DC miniature circuit breaker is specified most often for these jobs.
Things worth knowing about this listing
- The 160 V DC rating is the two-pole rating; a single pole of the PEBS-L is rated 80 V DC. Terminal capacity is 2.5 to 35 mm², which is the constraint worth checking on a 100 A or 125 A circuit.
Projoy Electric PEBS-L 160 V 80 A 2P technical data
Questions we get asked about this inverter
Is this 160 V on one pole?
No. 160 V DC is the two-pole rating. A single pole of the PEBS-L is rated 80 V DC.
What cable will it take?
2.5 to 35 mm² at 2.0 to 3.5 Nm. On a 100 A or 125 A circuit that is the constraint worth checking first.
Can it go outside?
Not on its own — it is IP40 with an IP20 wiring port. The Projoy weatherproof enclosure takes it to IP66.
Does polarity matter?
No. These are non-polarity devices.
How many times will it trip?
Electrical life is an average of 1,000 cycles, mechanical life 10,000. It is protection first and a switch second.
Documents, advice and trade pricing
Every datasheet, certificate, installation manual and warranty document we hold for this product is in the Documents tab below. See the rest of our storage range, our hybrid inverters and our batteries, or email sales@clearraysolar.com if you would like us to check a pairing before you order.
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Everything you need in one place.
- Inverters
- Batteries
- Mounting Systems
- Cabling & Accessories
- Protection Devices
Delivery times vary by region:
- UK — 1-2 business days
- Highlands & Islands — 1-2 business days
Returns accepted within 14 days of delivery for unused items in original packaging.
