Hobart vs Tronair vs TLD: 400Hz GPU Comparison for 2026

The Big Three: Hobart, Tronair, and TLD

When it comes to 400Hz ground power, three names dominate the market. Here's how they stack up.

Hobart Ground Power

Best for: Heavy-duty airport operations, military applications

Pros:

• Market leader with 100+ years of history
• Robust build quality, excellent for 24/7 operations
• Widest dealer/service network
• Strong resale value

Cons:

• Premium pricing (20-30% above competitors)
• Older designs can be complex to service
• Lead times on new units: 12-16 weeks

Tronair

Best for: Regional airports, smaller operations

Pros:

• Good value for money
• Compact designs suitable for tight spaces
• Excellent customer support
• Wide range of portable and cart-mounted units

Cons:

• Not as heavy-duty as Hobart for high-traffic hubs
• Some models have known control board issues
• Parts can have longer lead times

TLD

Best for: Mixed fleet operations, integrated systems

Pros:

• Strong innovation track record
• Good integration with other TLD GSE
• Competitive pricing
• Modern solid-state designs

Cons:

• Limited presence in North America vs Europe
• Some legacy models poorly supported
• Fewer independent service providers

Total Cost of Ownership Comparison (5-Year)

Based on a typical 90kVA GPU:

Verdict

If budget allows and you need the workhorse, go with Hobart. For value and flexibility, Tronair is hard to beat. TLD is the smart choice if you already run other TLD GSE equipment.