The Siemens 3VM9988-0BR10 is a SENTRON residual current release (RCR) accessory designed for side-mounting onto a residual current device RCD110 or RCD210. It's a bolt-on auxiliary release that adds residual current tripping to the base device — think of it as the trip coil that senses ground faults and opens the circuit. At 31.2 mm deep, 21.7 mm wide, and 65.1 mm high, it tucks alongside the RCD without eating extra DIN-rail slots. The stripped length for its wiring is 10 mm (0.4 in), which matches standard ferrule and terminal-block practice in a 400 V panel.
Siemens 3VM9988-0BR10 SENTRON Residual Current Release, 31.2
MPN3VM9988-0BR10
Active
Siemens SENTRON 3VM9988-0BR10 residual current release (RCR) accessory, 31.2 mm depth, for side-mounted RCD110 or RCD210 units.
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jul 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product designation | Accessories |
| Brand / range | SENTRON |
Mechanical
| Parameter | Value |
|---|---|
| Height | 65.1 mm |
| Width | 21.7 mm |
| Depth | 31.2 mm |
Other specifications
| Parameter | Value |
|---|---|
| Accessories | Auxiliary release |
| Number of slots | 3 |
| Stripped length | 10 mm |
| Stripped length [In] | 0.4 in |
| Design of the product | auxiliary release |
Product details
Frequently asked questions
Where can I buy 3VM9988-0BR10 and how is it quoted?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
3VM9988-0BR10