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L-828/L-829 Ferroresonant Constant Current Regulator – SRA Switchgear Regulator Assembly


• ETL Certified L-828/L-829: FAA AC 150/5345-10 (Current Edition)
• Monitoring according to FAA AC 150/5345-10 (Current Edition)


The switchgear regulator cell fits into a switchgear line up. Switchgear regulators allow a smaller installation footprint, minimize downtime and ease connection to other vital airport systems such as ALCMS.

Supplies three or five precision output currents to power airfield series lighting circuits.


• L-828 or L-829 switchgear cells available
• Class 1 or Class 2* availability for 6.6A or 20A circuits
• Air cooled
• Maximum efficiency power factor
• Dedicated raceways for control and power
• Easy installation and operation
• Built in IRMS availability
• Internal S-1 cutout availability
• 3 or 4 bus availability, up to 65kAIC
• Digital True-RMS readings of output current, output voltage, kW, kVA
• Temperature alarm
• 120VAC or 24VDC control
• Circuit breaker interlocks with door for added safety
• Available kW ratings include – 1kW, 2kW, 4kW, 5kW, 7.5kW, 10kW, 15kW, 20kW, 25kW & 30kW
• 24″ (61cm) wide cells for 1kW – 10kW regulators
• 36″ (91cm) wide cells for 15kW – 30kW regulators


• Input Voltage: 208VAC*, 220VAC*, 240VAC, 480VAC 60Hz (50Hz and additional voltage available upon request)
• Output: 6.6A or 20A*
• Redundant communications available
• Circuit breaker interlock and door switch interlock
• Cabinet size:
– kW output 1kW-10kW: 24″ x 40″ x 26.25″ (61 x 102 x 67cm)
– KW output 15kW-30kW: 36″ x 40″ x 31.25″ (91 x 102 x 79cm)

* Compliant to FAA specification.

Ordering Codes

Type kW Output Class Input Voltage Control Voltage Brightness Step Count Options
FR 828: L828 (Without Monitoring)
829: L829 (With Monitoring)
01: 1kW
02: 2kW
04: 4kW
05: 5kW
07: 7.5kW
10: 10kW
15: 15kW
20: 20kW
25: 25kW
30: 30kW
A: 6.6 Amp Output
B: 20 Amp Output
1: 208VAC, 60Hz
2: 220VAC, 60Hz
3: 240VAC, 60Hz
4: 480VAC, 60Hz
A: 24VDC Internal Supply
B: 24VDC External Supply
C: 48VDC Internal Supply
D: 48VDC External Supply
E: 120VAC Internal Supply
F: 120VAC External Supply
1: Single Step
3: 3 Step: B10-B100 (4.8A, 5.5A, 6.6A)
5: 5 Step: B1-B5 (2.8A, 3.4A, 4.1A, 5.2A, 6.6A)
1: Internal S-1 Cutout Installed
2: Insulation Resistance Monitoring System (IRMS) / Megger
3: Input Power Monitoring (Input Current, kW In, kVA In, CCR Power Factor)
4: Output Power Monitoring (Digital Current Monitor, kW Out, kVA Out)
5: Integrated Circuit Breaker
6: Single Ethernet / IP Interface
7: Dual Ethernet / IP Interface
8: Single ModTCP Ethernet Interface
9: Dual ModTCP Ethernet Interface
10: Single RS485 & Single Ethernet / IP Interface
11: Dual RS485 Interface
12: Casters

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