Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Robertshaw Ignition Module: Universal, 24V DC, 7 sec Lock Out, 30 sec Pre-Purge - Hot Surface Ignition Controls
RobertshawHot Surface Ignition Controls

Robertshaw Ignition Module: Universal, 24V DC, 7 sec Lock Out, 30 sec Pre-Purge

The Robertshaw 780U-DS20 is a universal hot surface ignition control module operating at 24V DC. It features a 7-second lockout time and a 30-second pre-purge period, with a 2 A main valve output. This ignition…

SKU 3G-OTH-67572

Brand
Robertshaw
Item
Ignition Module: Universal, 24V DC, 7 sec Lock Out, 30 sec Pre-Purge
Category
Hot Surface Ignition Controls
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Robertshaw
Manufacturer Part Number
780U-DS20
Type
780U
DC
24V
Lock Out
7 sec
Pre-Purge
30 sec
Product Type
Ignition Module
Control Voltage
24V DC
Main Valve Output
2 A
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Robertshaw 780U-DS20 is a universal hot surface ignition control module operating at 24V DC. It features a 7-second lockout time and a 30-second pre-purge period, with a 2 A main valve output. This ignition module is designed for use in industrial heating systems requiring a 24V DC control voltage.

Frequently Asked Questions

What is the Robertshaw 780U-DS20 ignition module used for?

The Robertshaw 780U-DS20 is a universal hot surface ignition control module used in industrial heating systems. It operates at 24V DC and is designed to sequence burner ignition with a 30-second pre-purge and 7-second lockout, ensuring safe and reliable startup in furnaces, boilers, and process heaters.

What are the specifications of the Robertshaw 780U-DS20?

The Robertshaw 780U-DS20 ignition module has a control voltage of 24V DC, a 7-second lockout time, a 30-second pre-purge period, and a 2 A main valve output. It is a universal hot surface ignition control module with part number 780U-DS20, suitable for industrial heating applications.

Where to buy the Robertshaw 780U-DS20 worldwide?

3G Electric supplies the Robertshaw 780U-DS20 ignition module worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this universal 24V DC hot surface ignition control module.

How to install the Robertshaw 780U-DS20 ignition module?

Install the Robertshaw 780U-DS20 by mounting it in a suitable enclosure, connecting 24V DC power, and wiring the main valve output (2 A) and hot surface igniter per the manufacturer's diagram. Ensure proper grounding and verify the 30-second pre-purge and 7-second lockout sequences during commissioning.

Used in

Common applications for Robertshaw
Commercial HVAC — Robertshaw RS10420T digital WiFi thermostat for programmable heat and cool control in office buildings
Furnace ignition — Robertshaw 41-230 universal hot surface ignitor for silicon carbide replacement in residential and light commercial furnaces
Airflow monitoring — Robertshaw 2374-509 adjustable air pressure switch for draft sensing in industrial burner systems
Gas-fired equipment — Robertshaw 1820-009 universal pilot assembly with thermopile for natural gas or LP water heaters and boilers
Vibration protection — Robertshaw 366A0 mechanical vibration switch for pump and compressor monitoring in industrial plants
OEM replacement — Robertshaw 41-428N direct spark igniter for Trane HVAC equipment requiring silicon nitride ignitors

Robertshaw Products

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

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
Ignition Module: Universal, 24V DC, 15 sec Lock Out, 30 sec Pre-Purge, 2 A Main Valve Output, 780U (MPN 780U-IP10). Key specifications — Product Type: Ignition Module; Brand: ROBERTSHAW; Control Voltage: 24V DC.
Robertshaw
Ignition Module: Universal, 24V DC, 15 sec Lock Out, 30 sec Pre-Purge, 2 A Main Valve Output, 780U (MPN 780U-IP10). Key specifications — Product Type: Ignition Module; Brand: ROBERTSHAW; Control Voltage: 24V DC.
Ignition Control: Universal, 24V AC, 1 min Lock Out, 5 min Pre-Purge, 1.5 A Main Valve Output, 780 (MPN 780-001). Key specifications — Product Type: Ignition Control; Brand: ROBERTSHAW; Control Voltage: 24V AC; Replacement for OEM Brands: Honeywell.
Robertshaw
Ignition Control: Universal, 24V AC, 1 min Lock Out, 5 min Pre-Purge, 1.5 A Main Valve Output, 780 (MPN 780-001). Key specifications — Product Type: Ignition Control; Brand: ROBERTSHAW; Control Voltage: 24V AC; Replacement for OEM Brands: Honeywell.
Ignition Control: Universal, 24V AC, 1 min Lock Out, 5 min Pre-Purge, 1.5 A Main Valve Output, 780 (MPN 780-002). Key specifications — Product Type: Ignition Control; Brand: ROBERTSHAW; Control Voltage: 24V AC; Replacement for OEM Brands: Lennox.
Robertshaw
Ignition Control: Universal, 24V AC, 1 min Lock Out, 5 min Pre-Purge, 1.5 A Main Valve Output, 780 (MPN 780-002). Key specifications — Product Type: Ignition Control; Brand: ROBERTSHAW; Control Voltage: 24V AC; Replacement for OEM Brands: Lennox.
Ignition Control: Universal, 24V AC, 1 min Lock Out, 45 sec Pre-Purge, 1.5 A Main Valve Output, 780 (MPN 780-003). Key specifications — Product Type: Ignition Control; Brand: ROBERTSHAW; Control Voltage: 24V AC; Replacement for OEM Brands: Johnson Controls.
Robertshaw
Ignition Control: Universal, 24V AC, 1 min Lock Out, 45 sec Pre-Purge, 1.5 A Main Valve Output, 780 (MPN 780-003). Key specifications — Product Type: Ignition Control; Brand: ROBERTSHAW; Control Voltage: 24V AC; Replacement for OEM Brands: Johnson Controls.
Hot Surface Igniter: OEM, Silicon Carbide, 36 in Lead Lg, 24V AC, Hardwired, Flat Tip (MPN 41-225). Key specifications — Electrical Connection Type: Hardwired; Manufacturer Part Number: 41-225; Brand: ROBERTSHAW; Input Voltage: 24V AC.
Robertshaw
Hot Surface Igniter: OEM, Silicon Carbide, 36 in Lead Lg, 24V AC, Hardwired, Flat Tip (MPN 41-225). Key specifications — Electrical Connection Type: Hardwired; Manufacturer Part Number: 41-225; Brand: ROBERTSHAW; Input Voltage: 24V AC.
Ignition Control: Universal, 24V AC, 90 sec Lock Out, 6 min Pre-Purge, 1 A Main Valve Output, 780 (MPN 780-845). Key specifications — Product Type: Ignition Control; Brand: ROBERTSHAW; Control Voltage: 24V AC; Replacement for OEM Brands: Robertshaw.
Robertshaw
Ignition Control: Universal, 24V AC, 90 sec Lock Out, 6 min Pre-Purge, 1 A Main Valve Output, 780 (MPN 780-845). Key specifications — Product Type: Ignition Control; Brand: ROBERTSHAW; Control Voltage: 24V AC; Replacement for OEM Brands: Robertshaw.

More from Robertshaw

View all Robertshaw parts
Ignition Module: Universal, 24V DC, 4 sec Lock Out, 30 sec Pre-Purge, 2 A Main Valve Output, 780U (MPN 780U-HS30). Key specifications — Product Type: Ignition Module; Brand: ROBERTSHAW; Control Voltage: 24V DC.
Robertshaw
Ignition Module: Universal, 24V DC, 4 sec Lock Out, 30 sec Pre-Purge, 2 A Main Valve Output, 780U (MPN 780U-HS30). Key specifications — Product Type: Ignition Module; Brand: ROBERTSHAW; Control Voltage: 24V DC.