Siemens 3VT3763-2AA36-0AA0 + 3VT9363-6AC00

Overview

The Siemens 3VT3763-2AA36-0AA0 is a 3-pole molded case circuit breaker switching unit of the SENTRON 3VT3 series, VT630 frame size, rated 630 A frame, Icu=36 kA at 415 VAC. This unit is supplied only as the switching base without trip unit. It is matched with the 3VT9363-6AC00 ETU DP electronic trip unit, which provides adjustable LI protection (long-time overload and instantaneous short-circuit). The complete set is widely used for branch feeder protection in industrial MCC panels, power distribution skids, transformer secondary circuits and machine main feed protection. This legacy 3VT series is phased out and mainly supplied as spare replacement.

Features

The Siemens 3VT3763-2AA36-0AA0 is the VT630 3P switching base for 3VT3 molded case breaker.3VT3763-2AA36-0AA0 has a breaking capacity of 36 kA Icu at 415 VAC, category A utilization.3VT9363-6AC00 is ETU DP LI electronic trip unit, adjustable Ir 250–630 A, instantaneous short-circuit setting 4–12.5 × Ir. The trip unit is pluggable and directly fitted into the 3VT3763-2AA36-0AA0 base. Screw terminal connection, compatible with full range 3VT accessories: auxiliary switch, alarm switch, shunt trip, under voltage release and rotary handle. Compliant with IEC 60947-2, UL listed. Mechanical life: 20,000 operating cycles; electrical life: 5,000 operating cycles.

Specs

Device Type: Molded Case Circuit Breaker Base + ETU DP LI Trip Unit Model: Siemens 3VT3763-2AA36-0AA0 + 3VT9363-6AC00 Brand: Siemens Series: SENTRON 3VT3 VT630 Poles: 3P Frame rating: 630 A Icu: 36 kA @ 415 VAC Trip type: ETU DP LI (Long-time overload + Instantaneous short-circuit) Ir adjustment range: 250 A ~ 630 A Ii adjustment range: 4 × Ir ~ 12.5 × Ir Insulation voltage: 690 VAC Mounting: Screw mounting Status: Obsolete legacy 3VT series, spare part set

Principle

The Siemens 3VT3763-2AA36-0AA0 provides the main contact mechanism and housing structure. The 3VT9363-6AC00 ETU DP samples the phase current, compares the measured value with configured thresholds. When overload or short-circuit exceeds the setting, the trip unit triggers the release mechanism to open the main contacts for circuit protection.

Applications

The Siemens 3VT3763-2AA36-0AA0 + 3VT9363-6AC00 set is used for power distribution protection in industrial MCC cabinets, chemical process skids, water treatment switchgear and transformer secondary feeders. The complete set is stocked as spare replacement for legacy SENTRON 3VT low-voltage distribution systems.

3VT9363-6AC00 SENTRON 3VT3 VT630 Molded Case Circuit Breaker Assembly