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Siemens Reyrolle 7PG17 Interposing & Supervision Relay
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Technical Specifications
Type: Interposing, Trip Circuit & Supply Supervision Relays
Brand: Siemens Reyrolle
Model Range: 7PG17 (XR105–XR351 series)
Applications: Control interfaces, DC voltage monitoring, trip circuit supervision, ferroresonance alarms
Features:
Remote control operation over pilot wires (up to 200 Ω resistance)
Designed to resist induced AC voltages
DC voltage monitoring with delayed drop-off and visual indicators
Trip circuit integrity monitoring and remote alarm capability
Configurable operation/reset modes with mechanical flags
Variants:
7PG173 – Interposing Relays (XR105, XR106, XR107, XR205, XR206)
7PG174 – DC Supply Supervision Relays (XR152, XR153)
7PG175 – Trip Circuit Supervision (XR151, XR250, XR251, XR350, XR351)
Compliance: CEGB, BEBS S15 Scheme H7, IEC Standards
Voltage: DC 24V–240V (model dependent)
Mounting: Panel-mounted
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