690 V AC
Single- and three-phase applications



The Haefely FP-COMB /690-1 family combines surge, ring-wave and EFT/burst coupling and decoupling in one AXOS-controlled network. Choose 63, 125 or 200 A for AC-powered equipment up to 690 V. Limited DC operation is also specified: 110 V DC for the 63 A model and 200 V DC for the 125 A and 200 A models.
63 / 125 / 200 A | 7 kV surge and ring wave | 5 kV EFT/burst
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HAEFELY · AUTOMATIC TRANSIENT CDNs
Automated transient testing for single- and three-phase AC power lines.
Single- and three-phase applications
Three current ratings for each configuration.
7 kV surge and ring-wave input; 5 kV EFT/burst input.

The Haefely FP-COMB /690-1 family combines surge, ring-wave and EFT/burst coupling and decoupling in one AXOS-controlled network. Choose 63, 125 or 200 A for AC-powered equipment up to 690 V. Limited DC operation is also specified: 110 V DC for the 63 A model and 200 V DC for the 125 A and 200 A models.
Surge combination wave: 1.2/50 µs voltage and 8/20 µs current. Ring wave: 100 kHz. EFT/burst: IEC/EN 61000-4-4.
AXOS selects coupling paths and source impedance for the chosen IEC or ANSI test mode. AC configurations also synchronize the phase angle.
Application-specific decoupling inductors reduce residual voltage while addressing voltage drop at rated current. LEDs show active coupling path, power, CDN activity and overtemperature.
| Product family | Current options | AC voltage | DC voltage¹ | Configuration |
|---|---|---|---|---|
| FP-COMB 32 | 32 A | 480 V AC | 480 V DC | AC + DC included |
| FP-COMB /690-1 | 63 / 125 / 200 A | 690 V AC | 63 A: 110 V DC 125 / 200 A: 200 V DC |
AC included; limited DC |
| FP-COMB /1500-1 — DC | 63 / 125 / 200 A | Requires AC option | 1500 V DC | Upgradeable to AC + DC |
| FP-COMB /1500-1 — AC + DC | 63 / 125 / 200 A | Up to 1000 Vrms Includes 690 V AC |
1500 V DC | Matching AC option fitted |
All versions: 7 kV surge and ring-wave input; 5 kV EFT/burst input. Available tests depend on the AXOS generator and installed modules. AC-equipped versions support single- and three-phase applications.
| Specification | 63 A | 125 A | 200 A |
|---|---|---|---|
| Model | FP-COMB 63/690-1 | FP-COMB 125/690-1 | FP-COMB 200/690-1 |
| Nominal DC current | 63 A | 125 A | 200 A |
| DC voltage¹ | Up to 110 V | Up to 200 V | Up to 200 V |
| AC voltage | Up to 690 V AC (phase-to-phase) | Up to 690 V AC (phase-to-phase) | Up to 690 V AC (phase-to-phase) |
| Nominal AC current | 63 A | 125 A | 200 A |
| AC frequencies | 50 / 60 Hz and 16.7 Hz | 50 / 60 Hz and 16.7 Hz | 50 / 60 Hz and 16.7 Hz |
| CDN inputs | 1 × CEE socket, 690 V / 63 A | 5 × 10 mm sockets | 5 × 10 mm sockets |
| CDN outputs | 5 × 10 mm sockets, front panel | 5 × 10 mm sockets, front panel | 5 × 10 mm sockets, front panel |
| EFT/burst input range / maximum | 0.2-5 kV / 5 kV | 0.2-5 kV / 5 kV | 0.2-5 kV / 5 kV |
| Surge combination-wave input range / maximum | 0.2-7 kV / 7 kV | 0.2-7 kV / 7 kV | 0.2-7 kV / 7 kV |
| Ring-wave input range / maximum | 0.2-7 kV / 7 kV | 0.2-7 kV / 7 kV | 0.2-7 kV / 7 kV |
| Coupling / decoupling path selection | Automatic; IEC + ANSI coupling modes | Automatic; IEC + ANSI coupling modes | Automatic; IEC + ANSI coupling modes |
| Synchronization input | 10-690 V | 10-690 V | 10-690 V |
| Phase angle and synchronization output | 0°-359° in 1° steps; synchronization on coupling path; rear BNC output | 0°-359° in 1° steps; synchronization on coupling path; rear BNC output | 0°-359° in 1° steps; synchronization on coupling path; rear BNC output |
| AXOS control interface | 37-pin Sub-D extension connector / interface cable to AXOS | 37-pin Sub-D extension connector / interface cable to AXOS | 37-pin Sub-D extension connector / interface cable to AXOS |
| LED indications | Coupling path, power on, CDN active, overtemperature | Coupling path, power on, CDN active, overtemperature | Coupling path, power on, CDN active, overtemperature |
| Dimensions, W × D × H | 552 × 800 × 1605 mm | 552 × 800 × 1605 mm | 552 × 800 × 1605 mm |
| Overall dimensions, W × D × H | 552 × 852 × 1754 mm; includes rack rollers, crane hook and power plug | 552 × 852 × 1754 mm; includes rack rollers, crane hook and power plug | 552 × 852 × 1754 mm; includes rack rollers, crane hook and power plug |
| Weight without AXOS | 243 kg | 260 kg | 260 kg |
¹ DC voltage depends on load inductance. Rated AC current depends on voltage and frequency. The 125 A rating follows the technical table; the feature list contains a 126 A typographical discrepancy.
The networks are controlled by AXOS 5 or AXOS 8. The /1500-1 datasheet states compliance with AXOS 8. Use an appropriately equipped AXOS 8 for 7 kV surge/ring-wave testing; compatibility with AXOS 5 does not add missing waveforms or raise its generator output rating.
The /690-1 datasheet does not specify a retrofit to 1500 V DC. For that requirement, select the /1500-1 family. Choose the current rating at order time; the datasheets do not describe a 63-to-125/200 A current upgrade.
AXOS 5 compact immunity test systemAXOS control with up to 5 kV surge and EFT/burst capability, depending on installed modules. Select AXOS 8 when 7 kV surge or ring-wave testing is required. |
AXOS 8 expandable immunity test systemConfigure the surge, ring-wave and EFT modules needed for the FP-COMB application. View generator specifications and available modules. |
Watch the Haefely FP-COMB 63/690-1 product video (illustrates the 63 A model; use the current datasheet for ratings).