Overview
The document provides detailed technical specifications, dimensions, accessories, and operational parameters for the S5M AC series of switch-disconnectors compliant with IEC 60947-3 standards. The series covers multiple sizes and current ratings from 125A up to 1000A, with configurations for 6-pole (6P) and 8-pole (8P) base mountings.

1. Product Range and Sizes
- Size 0: 125A, 160A, 200A
- Size 1: 250A, 315A, 400A
- Size 2: 500A, 630A
- Size 3: 800A, 1000A

2. Mechanical and Electrical Specifications
- Rated thermal current (Ith) varies by size and ambient temperature (40ºC to 60ºC).
- Rated insulation voltage (Ui): 1000 V for all sizes.
- Rated impulse withstand voltage (Uimp): 8 kV for sizes 0 and 1; 12 kV for sizes 2 and 3.
- AC rated operational current (Ie) at 400V for utilization categories AC21A, AC22A, and AC23A provided per size.
- Rated breaking and making capacities increase with size, e.g., 1000A size has breaking capacity up to 8000 A and making capacity up to 10000 A.
- Short-circuit making capacity (Icm) and short-time withstand current (Icw) specified, e.g., 13 kA peak and 7 kA rms for size 0, up to 60 kA peak and 25 kA rms for size 3.
- Mechanical endurance ranges from 3000 to 8000 cycles depending on size.

3. Dimensions and Mounting
- Detailed dimensions for mounting holes, shaft lengths, and handle door drilling are provided.
- Shaft lengths (L) and pitch (P) vary by size, e.g., size 0 shafts range from 155 to 263 mm, size 3 shafts from 408 to 573 mm.
- Terminal connection parameters include maximum cross-sectional area (S max), height (H max), length (L max), and torque (M) for copper conductors.

4. Accessories
- Handles: Direct handle, external handle with shaft (IP65 rated), emergency external handle.
- Auxiliary contacts: 1NO+1NC and 2NO+2NC rated at 16 A resistive and 4 A inductive at 250 Vac.
- Safety key lock devices: Simple and double versions allowing handle locking in OFF (or optionally ON) position with key removal only when locked.
- Terminal shrouds and phase barriers available for input/output protection; noted incompatibilities between certain accessories.

5. Installation and Safety Features
- Door drilling templates for handle and key lock devices are specified.
- Handles and shafts are included or available as separate codes.
- IP65 rating for external handles ensures protection against dust and water ingress.

6. Short-Circuit and Operational Performance
- Short-circuit making and withstand capacities are specified without limiting protective devices, assuming short-circuit duration of 50 to 100 ms.
- Rated breaking and making capacities are given for AC23 utilization category at 400 V.

7. Weight and Mechanical Data
- Maximum weights for 6P and 8P versions are listed per size, ranging from approximately 1.8 kg (size 0) to 20 kg (size 3).
- Mechanical operation cycles indicate durability and reliability under standard conditions.

Summary of Critical Parameters by Size

Size	Rated Current (A)	Icm (kA peak)	Icw (kA rms)	Breaking Capacity (A)	Making Capacity (A)	Mechanical Cycles	Weight 6P (kg)
0	125,160,200	13	7	1000-1280	1250-1600	8000	1.8-1.9
1	250,315,400	20	12	2000-3200	2500-4000	5000-8000	5.5-5.8
2	500,630	26	16	4000-5000	5000-6300	5000	12.3-13
3	800,1000	60	25	6400-8000	8000-10000	3000	18.5-20

Conclusion
The S5M AC series switch-disconnectors offer a comprehensive range of sizes and current ratings suitable for industrial electrical installations requiring reliable switching and disconnection functions. The devices comply with IEC 60947-3, provide robust mechanical endurance, high short-circuit withstand capabilities, and include a variety of accessories for enhanced safety and operational flexibility. Installation dimensions and accessory compatibility are clearly defined to facilitate integration into electrical panels.