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Siemens 3VA9988-0BL33 — Circuit Breaker Accessories

Siemens 3VA9988-0BL33 Shunt Trip, 208-277 V AC / 220-250 V D

MPN3VA9988-0BL33
Active

Siemens SENTRON auxiliary release, shunt trip left, 3VA9988-0BL33, 208-277 V AC 50/60 Hz, 220-250 V DC, for 3VA1 and 3VA20 up to 3VA25.

$34.29 – $96.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3VA9988-0BL33 — Identification
ParameterValue
Product designationAccessories
AccessoriesAuxiliary release
3VA9988-0BL33 — Mechanical
ParameterValue
Width25.7 mm
Height65.1 mm
Depth31.2 mm

Product details

The Siemens SENTRON 3VA9988-0BL33 is a shunt trip (auxiliary release) designed for the left side of 3VA1 and 3VA20 through 3VA25 molded-case circuit breakers. It accepts 208-277 V AC at 50/60 Hz or 220-250 V DC, drawing up to 40 VA apparent power on AC and 35 W on DC.

Mechanical fit is defined by the breaker frame: this shunt trip mounts in the left accessory slot of 3VA1 and 3VA20–3VA25 breakers. The accessory itself measures 25.7 mm wide, 65.1 mm high, and 31.2 mm deep — it occupies the standard accessory cavity without increasing the breaker's panel footprint. Stripped length for the connection wires is 10 mm (0.4 in).

Frequently asked questions

What are the key electrical ratings?

Rated for 208-277 V AC 50/60 Hz or 220-250 V DC. Maximum apparent power consumption is 40 VA on AC; maximum active power consumption is 35 W on DC. Surge voltage resistance is 4 kV at overvoltage category III, pollution degree 3.

What is the physical size of this shunt trip?

Width 25.7 mm, height 65.1 mm, depth 31.2 mm. Stripped length for wiring is 10 mm (0.4 in).

Which breaker frames does it fit?

Designed for the left-side accessory slot of Siemens 3VA1 and 3VA20 through 3VA25 molded-case circuit breakers.

MPN
3VA9988-0BL33