5555

Water-cooled very-high-current ignitron of the 5555/653B welder-control family. Controlled mercury discharge switches enormous industrial welding currents.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: -
Nominal heater: -

Description

Water-cooled very-high-current ignitron corresponding to the 5555/653B welder-control family.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B9A
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

IgnitronPowerSwitch

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 2100 V
Rectifier nominal output current: 200 mA
Rectifier peak forward current: 1800 A

Water-cooled ignitron/mercury rectifier represented by the 5555/653-series source row for high-current welder and rectifier service.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

IgnitronPowerSwitch

Other

Welder-control RMS voltage range
2400 V
WeldingControl
Maximum KVA demand
2400 kVA
WeldingControl
Corresponding average current
135 A
WeldingControl
Maximum average-current demand
1105 kVA
WeldingControl
Corresponding maximum average current
207 A
WeldingControl
Typical DC output voltage
300 V
ContinuousRectifier; SixPhaseDoubleYSingleWay
Maximum peak inverse and forward voltage
2100 V
ContinuousRectifier; DCOutput=300V
Maximum peak anode current
1800 A
ContinuousRectifier; DCOutput=300V
Maximum continuous average anode current
200 A
ContinuousRectifier; DCOutput=300V
Maximum one-minute average current
400 A
ContinuousRectifier; DCOutput=300V
Typical DC output voltage
600 V
ContinuousRectifier; SixPhaseDoubleYSingleWay
Maximum peak inverse and forward voltage
2100 V
ContinuousRectifier; DCOutput=600V
Maximum peak anode current
1200 A
ContinuousRectifier; DCOutput=600V
Maximum continuous average anode current
150 A
ContinuousRectifier; DCOutput=600V
Maximum one-minute average current
300 A
ContinuousRectifier; DCOutput=600V

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

IgnitronPowerSwitch

Other

RMS voltage range
2400 V
Ignitron;WelderControl
Maximum KVA demand
2400 kVA
Ignitron;WelderControl
Corresponding average current
135 A
Ignitron;WelderControl
Maximum average-current corresponding KVA demand
1105 kVA
Ignitron;WelderControl
Corresponding current
207 A
Ignitron;WelderControl
Cooling
Water
Ignitron