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Description

The Siemens 5ST3010-0HG is a SENTRON auxiliary current switch with a 1 NO + 1 NC contact configuration, designed for use with the 5SJ4 series miniature circuit breaker per UL 489. This part is also referenced as 5ST30100HG. Refer to manufacturer documentation to confirm compatibility with your specific application.

This switch mounts directly to the circuit breaker and continuously signals the contact position of the MCB regardless of whether the breaker was tripped manually or by a fault condition. It operates on AC/DC control voltage with a rated operating voltage of 480 V AC, an insulation voltage rating of 440 V, and a surge voltage resistance of 4 kV. The protection class is IP20, and electrical endurance is rated at 6,000 operating cycles.

The 5ST3010-0HG is also suitable for switching small currents and voltages for the control of programmable logic controllers (PLCs) compliant with EN 61131-2. Terminal block connection is used; maximum screw-type terminal tightening torque is 0.5 N·m.

Technical Specifications

Brand: Siemens
MPN: 5ST3010-0HG
Series: SENTRON
Type: Auxiliary Switch
Contact Configuration: 1 NO + 1 NC
Rated Operating Voltage: 400/480 V AC
Control Voltage Type: AC/DC
Insulation Voltage: 440 V
Surge Voltage Resistance: 4 kV
Minimum Control Voltage (AC): 12 V
Minimum Control Voltage (DC): 12 V
Protection Class: IP20
Electrical Endurance: 6,000 operating cycles
Compatible MCB: 5SJ4 miniature circuit breaker (UL 489)
Connection Type: Terminal Block
Max Terminal Tightening Torque: 0.5 N·m
Mounting: Mountable to circuit breaker (not factory-mounted)
Width Units: 0.5 (9 mm wide)
Dimensions: 110 mm H x 9 mm W x 70 mm D
Net Weight: 85 g
Ambient Operating Temperature: -25 °C to +55 °C
Storage Temperature: -40 °C minimum
Standards: UL 489, IEC/EN 60947-5-1, IEC/EN 62019
Country of Origin: Germany

Condition: Used. This part was removed from a working production environment.

Shipping & Handling

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Returns

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About ACME MRO Solutions

We started ACME MRO Solutions to fix something we kept running into as contractors — plants down, parts slow, surplus listings you couldn't trust. Our goal is simple: get YOU the right component fast, with an honest description, so you can get back to running.

We describe what we see. Used items show signs of use; if a part has visible wear, damage, or a missing component, the condition description will say so. We don't claim anything is tested unless we tested it — and we don't bench-test parts where testing isn't practical or revealing (feed-through modules, breakers, mechanical components). When we do test something, we'll say so explicitly.

If something is our fault, we don't work through it — we make it right. We are proud to serve American manufacturing. Your uptime is our bottom line.

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Questions? Talk to us.

Send a message through eBay. During business hours we typically respond within the hour. Whether you need to confirm compatibility before buying, request additional photos, ask about a cross reference, or work through something after delivery — message first and we'll figure it out together.