ABB KSE340TPN Enclosed Switch Disconnector
The KSE340TPN is a 3-pole enclosed switch disconnector rated at 25A, housed in a rugged aluminium enclosure with IP65 protection. Built for both indoor and outdoor use, it offers reliable local isolation for machinery, feeders, and distribution circuits, with UV-protected paintwork and weatherproof sealing well suited to the dust and heat conditions typical of UAE outdoor installations.
Key Features
- 3-pole switch disconnector rated 25A (AC-23A) with fixed neutral and PE terminal for 5-wire system installations
- IP65-rated aluminium enclosure, protected against low-pressure water jets, suitable for outdoor and indoor mounting
- Padlockable, side-operated handle with interlocked cover for safe isolation during maintenance
- Threaded cable entries for 2 parallel cables from top and bottom, with membrane grommets included for IP54 sealing
- Genuine ABB quality — impact-resistant housing rated IK09
Technical Specifications
| Specification |
Details |
| Brand |
ABB |
| Model |
KSE340TPN |
| Number of Poles |
3P |
| Rated Operational Current (Ie) AC-23A |
25A (380–415V) |
| Rated Operational Voltage |
690V (main circuit) |
| Rated Insulation Voltage (Ui) |
690V |
| Rated Impulse Withstand Voltage (Uimp) |
8kV |
| Rated Operational Power AC-23A (400V) |
11kW |
| Degree of Protection |
IP65 (IEC 60529) |
| Impact Resistance |
IK09 |
| Enclosure Material |
Aluminium (silumin) |
| Handle Type |
Side-operated, padlockable, grey |
| Neutral Type |
Fixed neutral |
| Cable Cross-Section |
0.75 – 10 mm² |
| Cable Entry Position |
Top/Bottom, 2xM32 per side |
| Terminal Type |
Screw terminals |
| Tightening Torque |
1.2 N·m |
| Standards |
IEC 60947-1, IEC 60947-3 |
| Net Weight |
0.8 kg |
| Dimensions (W x H x D) |
138 x 168 x 68 mm |
Applications
- Local isolation for HVAC units, pumps, and outdoor machinery in commercial and industrial sites
- Main isolation switch for external distribution boards exposed to UAE outdoor conditions
- Safe isolation point for maintenance on rooftop and plant room equipment
- Feeder isolation in FM-managed facilities requiring IP65-rated enclosures
FAQ
-
Is this an MCB or an isolator?
It's an isolator (switch-disconnector), not an MCB. It has no overload or short-circuit protection — it only provides a manual on/off disconnect, and should be paired with separate MCBs or RCCBs for circuit protection.
-
What does 3-pole mean for this isolator?
3-pole means it switches all three phases on a three-phase supply.
-
Where should this isolator be installed?
Typically as the main incoming switch or a local isolation point ahead of the MCBs/RCCBs in a distribution board, so the whole board (or a section of it) can be isolated for maintenance without needing to trip individual breakers.
-
Can I install this myself?
No. This is trade-only distribution board equipment and must be installed and connected by a licensed electrician in accordance with local wiring regulations.
-
Can this isolator be used to switch a live circuit under load?
Isolators rated for on-load switching can do this within their utilisation category, but check the specific AC rating in the Technical Specifications table — an isolator is not a protective device and should not substitute for a circuit breaker.
