PRI-51 / Current monitoring relay

Serves for monitoring of heating in rail-switches, heating cables, consumption of one-phase motors, indicates current flow

DESCRIPTION

• In suitable wiring, it can act as a power cutter for the power reserve and allow you to reduce the size of the main circuit breaker (and thus the amount of payment for this circuit breaker).
• The design reduces the thermal stress of the product compared to the conventional solution with the built-in shunt, increases the current range up to 20A and galvanically separates the measured circuit.
• Supply from monitored voltage.
• In conjunction with the supplied current transformers, the basic current ranges can be expanded up to 600A, increasing the range of use.
• Preferred (priority) relay – two appliances (boiler and floor heating) operating on one phase, but never run together – prevention against current overload and circuit breaker tripping. Enables to save your main breaker expenses.
• Supply is galvanically separated from measured current.

TECHNICAL PARAMETERS

• Power voltage AC 24 – 240 V, DC 24 V
• Output contact: 1x changeover 8 A/AC1 (AgNi, 2500 VA)
• Slight setting (by potentiometer ) of tripping current, choice from 6 ranges:

PRI-51/1A: AC 0.1 – 1 A
PRI-51/2A: AC 0.2 – 2 A
PRI-51/5A: AC 0.5 – 5 A
PRI-51/8A: AC 0.8 – 8 A
PRI-51/16A: AC 1.6 – 16 A

• Current flowing through monitored wire must not exceed 100 A.
• 1-MODULE, DIN rail mounting.