





TE Connectivity 1-1587987-1 & 1-2103172-1 MSD Connectors
TE Connectivity 350A Manual Service Disconnect (MSD)
High-power service disconnect connector set for EV and industrial DC architectures. Designed for repeatable maintenance disconnects, clean integration into pack enclosures, and HV safety workflows with HVIL support.
- Battery pack service disconnect
- High-power DC distribution
- EV / industrial electrification
- Maintenance-safe isolation
Overview
The TE Connectivity MSD connector set pairs a 350A plug assembly with a receptacle assembly to create a robust, install-friendly manual disconnect interface. Typical uses include battery pack service isolation, high-power DC routing, and safety-oriented disconnect strategies in EV and industrial systems. This family supports High Voltage Interlock Loop (HVIL) integration for interlock signaling as part of a broader safety architecture.
Included parts: Plug assembly 1-2103172-1 and receptacle assembly 1-1587987-1.
Key features & benefits
- Manual service disconnect interface: supports controlled disconnect events during maintenance and service.
- High-power architecture fit: built for EV and industrial DC environments where robust disconnects are required.
- HVIL-ready integration: supports interlock signaling workflows when used with compatible HVIL components.
- Positive lever action: lever mechanism supports repeatable engagement and service procedures.
- Install-friendly packaging: designed to integrate cleanly into enclosures and service access panels.
- Defined mechanical interface: mounting and torque guidance available in the official drawings.
- Documentation-backed selection: confirm mating/keying and mechanical constraints using TE drawings.
Typical applications
EV & Mobility
Battery pack service disconnect interfaces, high-power disconnect points, and maintenance access workflows.
Industrial Electrification
High-power DC distribution, industrial DC loads, and serviceable disconnect strategies inside control enclosures.
Energy Systems
DC routing and service isolation in energy subsystems where manual disconnect procedures are required.
Test / Lab
Disconnect points in validation fixtures, bench power setups, and high-power test environments.
Included part numbers
1-2103172-1
Plug Assembly (350A configuration) for TE MSD interface.
- 2-position power interface
- Lever mechanism for engagement/lock positions
- Supports HVIL integration (with compatible HVIL components)
1-1587987-1
Receptacle Assembly for TE MSD interface.
- Mounting interface uses heat-staked threaded bushings (M6)
- Mounting surface thickness (max): 6.2 mm
- Torque guidance: M6-1 threaded stud 10 Nm ±0.5 Nm; M6-1 insert 9–11 Nm
- HVIL retaining locations and compatible HVIL parts called out on drawing
Selection & integration notes
- Mating/keying confirmation: verify configuration, keying, and assembly compatibility using the TE drawings.
- Mechanical constraints: confirm panel thickness, access clearance, and lever travel inside your enclosure.
- Hardware torque: follow TE torque guidance and validate retention after vibration/thermal cycling (as applicable).
- HVIL implementation: treat HVIL as a signaling circuit and validate interlock logic within your safety architecture.
- Environmental fit: confirm temperature, vibration, and contamination requirements for your installation environment.
Downloads
FAQs
Does this MSD support HVIL?
Yes. This MSD family supports HVIL integration. Confirm compatible HVIL components and implementation details in the TE drawings and your harness design.
What should I verify before installation?
Confirm mating/keying, enclosure clearance for lever travel, panel thickness limits, torque guidance, and your system’s isolation and safety procedures using the TE drawings.
How do I ensure a reliable mechanical installation?
Use appropriate M6 hardware, follow TE torque guidance, and validate retention and alignment after any vibration/thermal exposure relevant to your use case.
Couldn't load pickup availability
Pickup available at EVolve Electrics Office
Usually ready in 24 hoursPairs well with

TE Connectivity 1-1587987-1 & 1-2103172-1 MSD Connectors
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