Description
PR ELECTRONICS
2231 / 2231 D
AC/DC TRIP AMPLIFIER
ORD.NO: 979201
SUPPLY: 24V DC 1.5W
SCHRACK
MT78740
RELAY BASE SOCKET
10A 400VAC
12A 300VAC
LR 26716
10A 300VAC
MADE IN ITALY
The PR Electronics A/S 2231 D is an AC/DC trip amplifier, paired here with a Schrack MT78740 relay base socket. In a shipboard fire alarm system it serves as a switching stage, turning an AC or DC input signal into a relay action once a trip level is reached, so that a field signal can act on downstream alarm circuits. The amplifier carries order number 979201 and runs from a 24V DC supply drawing 1.5W, while the Schrack base is marked 10A 400VAC and 12A 300VAC. Both items are offered in used condition.
Key Features
✓ AC/DC trip amplifier, model 2231 / 2231 D
✓ Order number 979201
✓ 24V DC supply with 1.5W consumption
✓ Schrack MT78740 relay base socket
✓ Socket contact ratings of 10A 400VAC, 12A 300VAC and 10A 300VAC
Marine Applications
✓ Signal switching between fire detection circuits and alarm relays
✓ Auxiliary relay outputs from fire alarm panels
✓ Alarm signal handling in engine room fire detection
Technical Support
Prota Marine provides technical support, repair and onboard installation for the AC/DC trip amplifier and the wider fire alarm system. Our engineers help with fault diagnosis on trip amplifier and relay socket circuits and give commissioning support once the unit is fitted.
