PactrolBurner Controls

Pactrol Relay MA 803

SKU 3G-CBM-05935

Also listed as: REL 30110 · REL-30110

Brand

Pactrol

Item

Relay MA 803

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Pactrol

frequency

50 Hz 

motor power monophase

0.25 kW 

motor power triphasé

0.78 kW 

control circuit voltage

24 V 

maximum burner flow rate

40 kg/h 

supply voltage monophase

220 V 

supply voltage triphasé

380 V 

control circuit frequency

50 Hz 

minimum cell illumination

30 lux 

ignition transformer power

400 VA 

maximum ambient temperature

40 °C 

normal operation consumption

11 VA 

security delay burner flow 30kgh

10 sec 

security delay burner flow 40kgh

20 sec 

Datasheet Content

MA 803

SCHEMA DE RACCORDEMENT

Ligne

Thermostat
d’ ambiance

Signalisation
tension reseau‘-™——

Transfo
d’ allumage

--- PAGE BREAK ---

Eoquirement MA 803

NOTICE NTC 2002

NOTICE
D’ INSTRUCTIONS

RENSEIGNEMENTS TECHNIQUES

Util sation en courant { +103 -
bi-tensian 220/380¥ t Porte callule 4295
monopnasé ou tripnasé ARS
Fréquence 50 Hz Eclairement minimum de Ja cellule 3d tux
Puissance soninale
}  monapihasé 0,25 Kw wieeze Py ae
du moteur } triphasé 0,78 Kw Sécurité 20 sec. pour brilleur débit
2 maxi 40 Kgh
du transformateur d*al lumage 4od ¥A
‘ Signslisation (Tension réseau} 24 10 sec, pour brileur débit
Clreuit de commande dy termostat maxi ¢ 30 Ugh
alimenté en 24 ¥, 50 II7
Température amolante maximum permise
Cqulpement 40"
Cellule oc
Consommation an “iarcho normale li vA
DIAGRAMME DE FONCTIONNEMENT
A: Ogmarrage sorma] ayec 4]lumage B: Extinction de flamme avec réal lumage

Réguiatear Aéguiatear
Allumisge dierage
ae Migdgur barter
Flameme Foam
ett : Stemite
with ae ;
aa ae i
€ : Dénarrace sans aflumage D: Extinetlon de flamme sans réa)lunege
Regvtetaur Réguietomr
i 4 Allumage Adlumage
Meieur brbleur fotemr broteur
Fiemme Femme
ee Stourtté

So: Temps de s4curité 2 + Marcte acrmale 2 ¢ Curée d’allumage

Page 37

--- PAGE BREAK ---

SCHEMA DE PRINCIPE :

LIGNE

So : Alimentation réseau C : Cellule
LS : Limiteur sécurité TA : Transfarmateur d*allumage
TH : Thermostat d*ambjance Sr: Signallsation tenslon réseau

SCHEMA DE RACCORDEMENT

*RACCORDEMENT EN MONOPHASE

4; Alimentation

Mo; Moteur

TA ; Transfo d*allumage
& : Callule

S 4 Signalisation

LS : Limiteur de sécurité

TH ; Thermostat

cL
c2

Moteur brileur

: Relais moteur

Relais flamme

RACCORDEMERT EN TRIPHASE SANS

NEUTRE

Page 38

Technical Documents

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Technical Document 1

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Pactrol Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Pactrol Relay MA 803 is a burner control unit designed for industrial combustion applications up to 40 kg/h maximum burner flow rate. Operating on 24 V control circuit at 50 Hz, the unit supports both single-phase (220 V, 0.25 kW motor) and three-phase (380 V, 0.78 kW motor) supply configurations, with an ignition transformer rated 400 VA. Security delay timing is 10 seconds at 30 kg/h flow and 20 seconds at 40 kg/h flow, with minimum cell illumination set at 30 lux and maximum ambient temperature rating of 40 °C. 3G Electric supplies this control relay for Southeast Asia distribution with full DDP handling.

Frequently Asked Questions

Where can I buy the Pactrol Relay MA 803 in your region?

Order the Pactrol Relay MA 803 burner control through 3G Electric. We deliver to your location with full logistics and customs customs handling included. Lead time on request.

What are the power and supply specifications for the MA 803?

The Relay MA 803 operates on 24 VDC control circuit at 50 Hz. Single-phase supply: 220 V, 0.25 kW motor. Three-phase supply: 380 V, 0.78 kW motor. Maximum burner flow rate is 40 kg/h.

What is the minimum cell illumination requirement for the MA 803?

The Pactrol Relay MA 803 requires a minimum cell illumination of 30 lux for safe flame detection. Operating ambient temperature range is 0–40 °C. Ignition transformer power is 400 VA.

Used in

Common applications for Pactrol

Industrial gas burners 10–60 kW — Pactrol Box P 16 FI and Control Box P 16 DIS spark-ignition controllers with 12 kV output and EN 298 approval

Atmospheric heating boilers — CSS01 12SJ control housing with integrated time and flame relays for safe ignition sequencing and flame detection

Forced-air burner retrofits — Pactrol connector assemblies (Molex, 10-terminal, P25) for panel rewiring and fuel-valve interface upgrades

Microgas fuel-valve integration — P25 connectors with resistors (e.g., GV2 96121) for seamless connection to Microgas proportional and solenoid valves

OEM control-panel assembly — Pactrol ignition modules and connectors for custom burner-control panels in packaged heating and combustion equipment

Plant-floor equipment replacement — Spare connectors and control housings stocked in Singapore for same-day delivery to maintenance teams across Southeast Asia

Pactrol Products

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

Browse all Pactrol products →Contact our engineers →