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Honeywell Box S4570 LS 1091 U - Controls
HoneywellControls

Honeywell Box S4570 LS 1091 U

Honeywell Box S4570 LS 1091 U is a single electrode hot surface automatic ignition controller for combustion appliances. Features 3-second waiting time, 15 or 30-second prepurge options, and 16 A external fuse…

SKU 3G-CBM-04239

Also listed as: S 4570 · S-4570

Brand
Honeywell
Item
Box S4570 LS 1091 U
Part Number
S4570
Category
Controls
UNSPSC
39121026 — Control power transformer
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Honeywell
Manufacturer Part Number
S4570
type
single electrode hot surface automatic ignition controller
connector
Molex 3001 series
waiting time s
3
external fuse a
16
prepurge time s
15 or 30
igniter terminal
4.8 x 0.5 mm spade

Technical Documents

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

Product Description

Honeywell Box S4570 LS 1091 U is a single electrode hot surface automatic ignition controller for combustion appliances. Features 3-second waiting time, 15 or 30-second prepurge options, and 16 A external fuse rating. Ideal for gas heating and boiler control systems.

Frequently Asked Questions

Where can I buy the Honeywell S4570 LS 1091 U controller in your region?

3G Electric supplies the Honeywell S4570 LS 1091 U with delivery to your location. We handle customs documentation, logistics, and USD invoicing. Contact us for availability and lead time on request.

What is the lead time for the Honeywell S4570 LS 1091 U?

Lead time varies based on current stock and import schedule. The Honeywell S4570 LS 1091 U is available to order. 3G Electric arranges all shipping and customs clearance to your region. Request a formal quote for confirmed delivery dates.

What prepurge time options does the Honeywell S4570 LS 1091 U support?

The Honeywell S4570 LS 1091 U offers 15-second or 30-second prepurge settings, with a 3-second waiting time between cycles. It features a 16 A external fuse and Molex 3001 series connector for safe gas heating and boiler ignition control.

Used in

Common applications for Honeywell
Commercial kitchen and inflight-catering steam boilers — RM7890 / RM7895 flame relays with UV detection
Food-processing ramp-and-dwell ovens — DBC2000E / DBC2100E controllers
Hotel and hospital boiler plants — VR8205 combination gas controls
Petrochemical tank-farm heating — V4xxx gas-valve bodies with ML7420 actuators
Retrofit swap-outs from legacy Fireye / Satronic — Honeywell replacement kits
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Honeywell Products

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

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