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3G Electric
Sit 0503501 control box - Burner Controls
SITBurner Controls

Sit 0503501 control box

The Sit 503 EFD is an electronic flame control device for burner applications, featuring a 2-4 mm spark gap and 230 Vac alarm output rated at 1 A. With adjustable repetition rates from 1-25 Hz and IP 40 protection…

SKU 3G-CBM-06073

Brand
SIT
Item
0503501 control box
Category
Burner Controls
UNSPSC
40101833 — Boiler or heater igniter
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SIT
type
electronic flame control device
model
503 EFD
spark gap
2-4 mm
alarm output
230 Vac, 1A
repetition rate
1-25 Hz
max cable length
2 m
protection degree
IP 40

Technical Documents

(1)
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SIT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Sit 503 EFD is an electronic flame control device for burner applications, featuring a 2-4 mm spark gap and 230 Vac alarm output rated at 1 A. With adjustable repetition rates from 1-25 Hz and IP 40 protection, it integrates into industrial combustion control systems.

Frequently Asked Questions

What is the Sit 503 EFD control box used for?

The Sit 503 EFD is an electronic flame control device for gas appliances. It manages ignition and flame detection using flame rectification, suitable for boilers with natural or forced draught and intermittent pilot applications. It integrates with SIT 830, 836, 837 TANDEM and 822, 826, 827 NOVA multifunctional gas controls.

What are the specifications of the Sit 0503501 control box?

The Sit 503 EFD model 0503501 features a 2-4 mm spark gap, 230 Vac alarm output rated at 1 A, adjustable repetition rate from 1-25 Hz, maximum cable length of 2 m, and IP 40 protection. It is an electronic flame safety device designed for integral mounting on SIT multifunctional gas controls.

Where to buy the Sit 0503501 control box in Singapore?

3G Electric supplies the Sit 0503501 control box to Singapore. We source and deliver this SIT burner control, handling logistics and customs clearance for your order. Contact us for availability and lead time on this electronic flame control device.

How to install the Sit 503 EFD control box?

Install the Sit 503 EFD directly onto SIT 830, 836, 837 TANDEM or 822, 826, 827 NOVA gas controls using the exclusive plastic container. Ensure the spark gap is set to 2-4 mm and cable length does not exceed 2 m. Follow EN298 standards for wiring and lockout reset procedures.

Used in

Common applications for SIT
Commercial boiler gas-control replacement — Sigma 845 / 848 on hot-water and steam boilers
Catering and commercial kitchen equipment — Eurosit 630 thermostatic valves on fryers, ovens, and steamers
Residential heating appliance service — NOVA 820 / 822 / 824 as OEM-replacement gas-control valves
Standing-pilot gas appliance refurbishment — Eurosit 630 and Minisit thermostatic controls
Industrial gas-fired process equipment — Sigma 848 modulating gas valves for burner integration
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SIT Products

3G Electric supplies SIT burner controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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