Hammond 298DT 500VA Step-Up Isolation Transformer, 120V to 240V
Ships from and sold by A5 IT
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Create Free Business AccountKey Features
- 500 VA step-up isolation: 120VAC, 50/60 Hz primary to 240VAC secondary
- NEMA 5-15P input plug; duplex 3-wire grounded NEMA 6-15R output receptacle (2 outlets)
- 5 A circuit breaker protected output (per drawing) with rocker lighted on-off switch
- Hi-Pot tested at 4,000V RMS between primary and secondary
- Overall 9.00 in (229 mm) L x 6.00 in (152 mm) W x 4.00 in (102 mm) H; ships at 15 lbs (6.80 kg)
- Toroidal core in a ventilated black steel case for low noise and cool operation
- C UL & UL listed (File #E211544); RoHS and REACH compliant; indoor use only
The 298DT is the 500VA model of the 298 Series, keeping the 6.00 x 4.00 in cross-section of the smallest unit. It plugs into a standard 120VAC, 50/60 Hz North American outlet and supplies 240VAC through an isolated secondary, letting integrators, service technicians and test benches power 240V equipment where only 120V circuits are available.
Inside is a toroidal transformer, used for high isolation, low noise, light weight, cool operation and low profile, and the primary-to-secondary insulation is Hi-Pot tested at 4,000V RMS. The ventilated black steel case carries a rocker lighted on-off switch, and the output is circuit breaker protected; the drawing for the 298DT specifies a 5 amp breaker.
The input is a cord with a standard North American NEMA 5-15P plug, and the output is a North American duplex 3-wire grounded NEMA 6-15R receptacle, giving two outlets. For international pinouts, the 298G adaptor series is available. Overall dimensions are 9.00 in (229 mm) long, 6.00 in (152 mm) wide and 4.00 in (102 mm) high, with a shipping weight of 15 lbs (6.80 kg).
The 298DT carries C UL and UL listing (File #E211544), is RoHS and REACH compliant, and is for indoor use only. It does not convert line frequency, and toroids can draw a brief inrush current when energized, so a slow-blow fuse, time-delayed breaker or soft-start circuitry on the supply line is recommended.
Ideal For
- Powering 240V equipment from 120V outlets
- Circuit isolation for 240V loads
- Bench and service power for 240V devices
- Low-noise isolated 240V supply
Overview
| Series | 298 Series - TOROIDAL Isolation - Step Up (120VAC to 240VAC), Plug-In |
| Product Type | Isolation transformer, toroid, step up 120 to 240VAC, 500VA, 298 Series |
| Short Description | 500VA PLUG IN ISOLATED |
Dimensions
| Overall Width | 6.00 in (152 mm) |
| Overall Height | 4.00 in (102 mm) |
| Overall Length | 9.00 in (229 mm) |
| Height (Drawing) | 103.05 mm [4.057 in] |
| Length (Drawing) | 228.60 mm [9.000 in] |
| Width Dimensions (Drawing) | 155.58 mm [6.125 in] / 160.87 mm [6.333 in] |
Electrical
| Switch | Rocker lighted on-off switch |
| Isolation | Provides circuit isolation |
| Hi-Pot Test | 4,000V RMS between primary & secondary |
| Power Rating | 500 VA |
| Primary (Input) | 120VAC, 50/60 Hz |
| Output Protection | 5 A circuit breaker (per drawing) |
| Secondary (Output) | 240VAC |
| Frequency Conversion | None - units do not convert line frequency |
Connections
| Input Cord | 5 foot cord (series data); drawing shows 6' cord |
| Input Plug | NEMA 5-15P |
| Outlet Qty | 2 |
| Receptacle Pins | North American pins; 298G adaptor series available for international pinouts |
| Output Receptacles | standard North American duplex 3-wire grounded receptacle (NEMA 6-15R) |
Identifiers
| UPC | 623980008257 |
| UNSPSC | 39121301 |
| Part Number | 298DT |
Packaging & Shipping
| Shipping Weight | 15 lbs (6.80 kg) |
Construction & Finish
| Case | Ventilated black steel case (perforated holes) |
| Core | Toroidal transformer |
Environmental & Protection
| Environment | Indoor use only |
Compliance & Certifications
| RoHS Compliant | Yes |
| Safety Listing | C UL & UL listed (File #E211544) |
| REACH Compliant | Yes |
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Frequently Asked Questions
Can the 298DT run 240V equipment from a 120V outlet?▾
Yes. It steps 120VAC, 50/60 Hz up to 240VAC with circuit isolation, rated at 500VA.
Does it change the frequency?▾
No. It works on 50 or 60 Hz, but these units do not convert line frequency.
What connectors does it have?▾
A cord with a North American NEMA 5-15P plug on the input and a duplex 3-wire grounded NEMA 6-15R receptacle on the output. The 298G adaptor series covers international pinouts.
What circuit breaker is fitted to the 298DT?▾
The output is circuit breaker protected; the drawing for this model shows a 5 amp circuit breaker.
What isolation testing is done?▾
The transformer is Hi-Pot tested at 4,000V RMS between primary and secondary, and the unit is C UL & UL listed (File #E211544).
How large is it?▾
Overall dimensions are 9.00 in (229 mm) long, 6.00 in (152 mm) wide and 4.00 in (102 mm) high; shipping weight is 15 lbs (6.80 kg).
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