The
Jean Muller KETO-1 Battery Disconnector with 160A Fuses pairs the size 1 KETO-1-2/F switch body with a matched pair of
NH1 gG 160A fuse-links, delivering a complete, ready-to-fit DC isolation and overcurrent protection assembly for battery energy storage systems (BESS) rated up to
160A continuous. Fitted between the battery bank and inverter, it provides a
visible, lockable air-gap disconnect alongside full-range gG fuse protection, and is supplied as a complete two-fuse set so there is no need to source fuse-links separately.
⚠ Correct component identification
This listing supplies the KETO-1-2/F switch body (T100112002) fitted with 2 x Jean Müller NH1 gG 160A/500V fuse-links. Confirm the 160A rating matches your system's maximum DC design current with an appropriate safety margin before ordering — fuse selection should always be confirmed against your inverter and battery manufacturer's protection guidance.
◆ AC-rated fuse-link, DC-derated in service
The NH1 gG 160A fuse-link is manufactured and rated primarily as an AC device (500V AC, 120kA breaking capacity), with a published DC rating of 250V. Standard gG fuse-links are commonly used for DC battery isolation in solar/BESS applications, but they are not gPV-characteristic fuses optimised for DC arc extinction. Where the installation calls for a fuse specifically certified for PV/DC duty at higher DC voltages, a gPV-rated NH1 fuse-link should be specified instead.
ℹ Switch body voltage rating
The KETO-1-2/F switch body itself carries a manufacturer-rated operating voltage Ue of 250V DC (utilisation category DC-22B), independent of the fuse-link's own voltage rating. Both figures should be checked against your system's actual DC bus voltage.
Complete Two-Fuse Assembly
Supplied with both NH1 160A fuse-links required for a 2-pole DC circuit, removing the need to cross-reference and separately order matching fuse-links.
Full-Range gG Protection
gG characteristic fuse-links protect against both overload and short-circuit conditions, rather than short-circuit protection alone, giving broader coverage for cable and component protection.
Combi Fuse-Status Indicator
Each NH1 160A fuse-link carries a combination status indicator, giving a fast visual check of fuse condition during routine maintenance without needing to remove the fuse from its clips.
High Breaking Capacity
Rated 120kA AC breaking capacity on the fuse-link itself, backed by the switch body's 35kA DC conditional short-circuit rating, gives strong protection margins for fault conditions.
Touch-Safe Live Gripping Lugs
Blade-contact fuse-links with insulated, live gripping lugs allow safe handling during fuse replacement when used in conjunction with the KETO-1 body's IP20C touch-protection covers.
Standardised NH1 Platform
Uses the industry-standard NH1 fuse-link footprint, so replacement fuse-links of matching rating are widely available from multiple manufacturers if needed in future.
| Switch Body — Electrical Ratings |
| Rated operating voltage Ue |
250V |
| Rated operating current Ie |
250A |
| Rated isolation voltage Ui |
1,000V |
| Rated impulse withstand voltage Uimp |
8kV |
| Rated conditional short-circuit current Icc |
35kA (DC 250V) |
| Utilisation category |
DC-22B (250V / 250A) |
| Switch Body — Construction |
| Frame size |
NH1 |
| Poles |
2 |
| Type of installation |
Baseplate mounting |
| Cable terminal |
Flat terminal, M10 |
| Degree of protection (covers fitted) |
IP20C |
| Dimensions (H x W x D) |
298 x 138 x 117mm |
| Fuse-Links (x2 supplied) — NH1 gG 160A/500V |
| Rated current |
160A |
| Rated AC voltage |
500V |
| Rated DC voltage |
250V |
| Characteristic |
gG (full-range, overload + short-circuit) |
| Breaking capacity (AC) |
120kA |
| Power dissipation |
12.2W |
| Prearcing Joule integral |
51,000 A²s |
| Operating Joule integral |
330,400 A²s |
| Indicator |
Combination fuse status indicator |
| Contact type |
Blade contact, live gripping lugs |
| Ordering Information |
| Switch type designation |
KETO-1-2/F |
| Switch article number |
T100112002 |
| Fuse-link size |
NH1 |
| MPN / SKU |
KETO-1-160A |
Are the fuses included with this product?
Yes. This listing includes the KETO-1-2/F switch body and two matching NH1 gG 160A/500V fuse-links, ready to fit as a complete assembly.
Is 160A the right fuse rating for my system?
Fuse rating must be selected against your specific battery bank and inverter's maximum DC current, with an appropriate safety margin as advised by your equipment manufacturer or system designer. We supply the component to the rating specified in the order; final sizing responsibility sits with the installer or designer.
Can the fuses be swapped for a different rating later?
Yes. The KETO-1-2/F body accepts any NH1-size fuse-link up to 250A, so fuse-links can be upgraded or downgraded within that range without replacing the switch body itself.
What is the difference between this and the 200A or 250A versions?
All three use the identical KETO-1-2/F switch body; only the fitted fuse-link rating differs (160A, 200A, or 250A). Choose the version that matches your circuit's maximum design current.
Is this switch suitable for AC use as well as DC?
The KETO-1-2/F and its NH1 fuse-links are dual-rated components used across both AC and DC applications; however, this listing and its ratings are presented specifically for DC battery isolation duty in solar and BESS installations.
