ISPF QB58 SW Weidmuller Socket Insulation

Technical Overview

The Weidmüller ISPF QB58 SW is a specialized insulation profile engineered specifically for the QB 58 series cross-connectors used in SAK series terminal block assemblies. Manufactured from black PVC with a UL 94 V-0 flammability rating, this 465 mm profile provides critical touch-safe protection (IP20 equivalent) for conductive cross-connection bars. It is designed for plugged mounting directly onto the cross-connector, effectively preventing accidental contact and short circuits between phases or adjacent components. The profile is customizable and can be cut to length to suit specific pole configurations within industrial control cabinets.

Key Features

Designed specifically for insulating QB 58 cross-connectors
Manufactured from self-extinguishing PVC (UL 94 V-0)
Standard length of 465 mm, easily cut to custom sizes
Plugged fixing mechanism for tool-free installation
Provides finger-safe protection for maintenance personnel
Compatible with SAK series accessories

Technical Specification Matrix

Technical Parameter	Specification
Brand	Weidmüller
Type	ISPF QB58 SW
Order No.	0546000000
GTIN (EAN)	4008190116705
Version	Cover profile, Insulation profile
Material	PVC
Colour	Black
UL 94 Flammability Rating	V-0
Operating Temperature Range	-5 °C ... 40 °C
Installation Advice	Direct mounting
Type of Fixing	Plugged
ROHS Compliance	Compliant
ETIM 7.0	EC002848
ECLASS 9.1	27-14-11-92
Height	465 mm
Width	2.5 mm
Depth	5.7 mm
Net Weight	5.82 g

Industrial Applications

1. Cross-Connection Safety Shielding

Insulates exposed QB 58 cross-connection bars within high-density SAK terminal block assemblies to prevent accidental operator contact.

Problem Solved

Mitigates the risk of electric shock and inadvertent bridging during maintenance on live panels by providing a physical dielectric barrier.

QB 58SAK SeriesDielectric barrierTouch protection

2. Phase Separation in Power Distribution

Acts as an insulating divider or cover on long jumper bars to segment power distribution groups within a single terminal strip.

Problem Solved

Prevents phase-to-phase short circuits and allows for the safe segmentation of different potential groups on the same DIN rail.

Phase separationPotential groupingShort circuit preventionPower distribution

3. Retrofit IP Protection Compliance

Applied to legacy terminal block installations utilizing uninsulated cross-connectors to upgrade safety standards to modern requirements.

Problem Solved

Brings older control cabinet installations into compliance with current finger-safety standards without requiring complete component replacement.

RetrofitIP20 complianceFinger safetyControl cabinet upgrade