Fused Knife Quick Disconnect and Test Terminal Blocks
- Type:
- Test disconnect terminal block, with two test sockets for 4 mm test plugs, or for receiving bridge bars or screw bridges
- Nominal Voltage:
- 400 V
- Nominal Current:
- 41 A
- Connection Method:
- Screw connection
- Rated Cross Section:
- 6 mm²
- Cross Section:
- 0.5 mm² - 10 mm²
- Color:
- gray
Troubleshooting an energized control cabinet shouldn't require dismantling live field wiring. Commissioning teams and panel builders face substantial short-circuit hazards whenever current transformer secondary loops need calibration. Disconnect & Test Terminal Blocks solve this operational headache on DIN rail assemblies. Inserting modular disconnect terminal blocks creates visible air-gap isolation in seconds, removing guesswork and keeping surrounding instrumentation running without interruption.
Targeted Protection and Loop Verification
Downstream electronics such as programmable logic controllers demand fail-safe defense against overcurrent spikes. Mounting a fused terminal block directly adjacent to field input cards guarantees rapid thermal interruption during ground faults, featuring blow-out visual indicators for instant inspection.
When executing meter verifications or signal injection, the knife disconnect terminal block delivers tactile operation. Flipping the captive orange lever disengages continuity without disturbing conductor terminations:
Practical Troubleshooting Advantages
-
Direct Signal Interception: Twin internal test sockets accept 4mm touch-proof probes for inline voltage checks without wire pulling.
-
Zero Unscheduled Interruption: Implementing a quick disconnect terminal block allows rapid actuator replacement while adjacent control loops remain active.
-
Vibration-Proof Clamping: Screw clamp assemblies with Belleville spring washers retain high clamping force under mechanical shock.
Technical Specifications
| Parameter | Standard Value |
|---|---|
| Rated Insulation Voltage | 500 V AC/DC |
| Disconnect Lever Rating | 30 A |
| Cartridge Fuse Capacity | 5 x 20 mm (up to 6.3 A) |
| Conductor Cross Section | 0.5 - 6 mm² (20 - 10 AWG) |
| Mounting Profile | NS 35 DIN Rail |
| Flammability Rating | UL 94 V-0 Polyamide |
Prevent signal interruptions and streamline panel validation routines before shipment. Download exact 3D STEP models, review compliance certifications, or order functional sample kits to inspect terminal mechanics directly on physical test benches.
| Model | Function | Wire IEC cross-section | Wire UL | Thickness |
| JHD5-6S |  |
4 mm² 6 mm² 4 mm² |
10 AWG 12 AWG 10 AWG |
8.2 mm |
| Maximum current | Number of packages | Thickness/Height( )/Width mm |
Rated voltage/rated current/rated cross-sectior |
| 57A | 45 | 8.2/51.5/72 | 400 V/57 A/6 mm² |
Specfication:
| End cover | D6S |
| Cross-connection 10-Polo,Separable | ZL2-6S ZL3-6S ZL10-6S |
| Small Partition | CP6S |
| Marking tags | ZB8 |
| Screw/Tightening torque(Nm) | M4/1.2 |
| Material | PA |
| Flame retardant rating UL-94 | V0 |
| Dimensions |  |
With universal mounting feet for standard top-hat(Ω profile) and G-profile DIN rail mounting.
