
Before you specify
Frequently Asked Questions
Is this shredder NSA approved?
Yes. The model is listed on the NSA/CSS Evaluated Products List for paper shredders as "Kobra 400 HS-6", and its 0.8 x 5 mm particle is inside the 1 x 5 mm maximum that NSA/CSS Specification 02-01 sets. Both conditions have to hold — a P-7 rating on its own is not an NSA approval. The EPL is revised quarterly, so confirm the current listing before specifying for classified destruction.
How many sheets does it really take?
This is the one specification on which Kobra's own documents disagree. The US datasheet (rev. 7) states up to 14 sheets. Kobra's European datasheet for the identical machine states 8–10 sheets of A4 70 g/m² and 8–9 sheets at 80 g/m². The European figures follow the pattern of the rest of the range, so plan around 8–10 sheets and treat 14 as an optimistic ceiling on very light stock.
Can it shred CDs, DVDs or credit cards?
No. Kobra lists paper and film as the only shreddable materials for this model, and feeding rigid plastic or metal through a 0.8 x 5 mm high-security head risks damaging it. If your site also destroys optical media, the KOBRA 400 HS-6 COMBI puts an O-6-rated optical cutter and a separate 22-gallon bin in the same cabinet, or the KOBRA 400 HS OM is a dedicated optical media machine listed on the NSA/CSS EPL for optical destruction devices.
Is there anything above P-7?
No. DIN 66399 ends at P-7 for paper, with a maximum particle area of 5 mm². There is no class above it, and any listing that advertises one is describing something the standard does not define. This machine's 4 mm² particle is the top of the scale.
What is the duty cycle before it needs to rest?
Kobra publishes none. The motor is specified as 24-hour continuous duty with no overheating and no duty cycles. In practice the limiting factors on a destruction session are the 53-gallon bag, the dust generated by a high-security head, and the operator. Plan on bag changes and a periodic clean around the cutting area rather than on cool-down periods.
What oil does it use and how often?
Kobra oil for the automatic oiler, art. SO-1532, supplied in one-quart bottles. The oiler applies it during operation, so there is no manual schedule — the task is simply keeping the reservoir topped up. Do not substitute aerosol lubricants or general-purpose oils: residue in a 0.8 mm cutting head is not something the machine will clear on its own, and a starved or contaminated head is a direct threat to the particle size the EPL listing depends on.
Can it go on an upper floor?
Usually yes, but check first. At 246 lb on four castors, the point loading is significant for raised access flooring and older timber floors. The cabinet is 23.5 in. wide, so it passes a standard doorway, but it is not a machine that one person moves. Confirm the delivery route and the floor loading before it arrives.