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Siemens 3VA9977-0KD80 — Circuit Breaker Accessories

Siemens SENTRON 3VA9977-0KD80 Auxiliary Circuit Connector, 1

MPN3VA9977-0KD80
Active

Siemens SENTRON auxiliary circuit connector, 3VA9977-0KD80, for 3VA draw-out units, 10 A thermal current, 250 V DC, 55 mm depth, 15 mm width, 88 mm height.

Siemens 3VA9977-0KD80 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3VA9977-0KD80 — Identification
ParameterValue
Product designationAuxiliary circuit connector
AccessoriesAuxiliary circuit connector

Mechanical

3VA9977-0KD80 — Mechanical
ParameterValue
Width15 mm
Height88 mm
Depth55 mm

Other specifications

3VA9977-0KD80 — Other specifications
ParameterValue
Stripped length15 mm
Thermal current10 A
Degree of pollution3
Overvoltage categoryIII
Stripped length [In]0.6 in
Design of the productAccessories 3VA draw-out units
Surge voltage resistance4 kV
Operating voltage (at DC, minimum)250 V

Product details

The Siemens SENTRON 3VA9977-0KD80 is an auxiliary circuit connector designed as an accessory for all 3VA draw-out units.

Dimensions and fit

The connector measures 55 mm deep, 15 mm wide, and 88 mm high. That 15 mm width matches a single modular unit on a DIN rail, so it slots into the draw-out unit's accessory bay without stealing space from adjacent breaker positions. The stripped length is 15 mm (0.6 in) — standard for the spring-cage terminals on SENTRON accessories.

This is the auxiliary circuit connector that plugs into the draw-out unit's secondary disconnect block. It carries control wiring — not main power — from the fixed part of the switchgear to the removable breaker cradle. The 10 A thermal current is ample for signaling, status contacts, and shunt-trip feeds typical in 3VA-based distribution panels.

Frequently asked questions

Where can I buy 3VA9977-0KD80?

The part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is listed here.

What is 3VA9977-0KD80's listed depth?

The depth is 55 mm. Width is 15 mm, height is 88 mm.

Will 3VA9977-0KD80 drop into a panel specified around 5SY4140-7 without rewiring?

No — the 5SY4140-7 is a miniature circuit breaker, not a draw-out unit accessory. The 3VA9977-0KD80 is designed exclusively for the 3VA draw-out cradle; it has no mechanical or electrical fit with the 5SY range.

What compliance documentation does this brand provide for 3VA9977-0KD80?

As a SENTRON component, it carries the standard Siemens declarations — RoHS and REACH compliance are included with the product documentation. The overvoltage category III and pollution degree 3 ratings indicate it meets IEC 60947-1 requirements for industrial switchgear.

MPN
3VA9977-0KD80