Leverage is a multiplication of the initial margin by x to give the total position value.
Your position consists of Margin and Leverage. The amount of Leverage determines the level of Margin for your order. The higher the Leverage, the lower the Margin required, the higher the risks.
Cross-Margin mode is set on BTCMEX by default. To switch to the Isolated Margin and chose the Leverage, slide the bar to the right. You can chose up to 100x Leverage.
You can also input the Leverage amount manually.
The Risk Limit is applied to prevent large liquidation incidents on BTCMEX. If you place an order that would bring your usage above your risk limit, you would need to click the Edit button on the right, to increase your risk limit, before you could submit your order. Your Maintenance Margin and Initial Margin would change accordingly.
The Maintenance Margin on BTCMEX is set at 0.5% of the position value. BTCMEX Risk Limit policy applies for positions which value is BTC 200 or more.for each BTC 100 increase in the position size, the Maintenance and Initial Margin requirements are increased by 0.5%. Learn more about Maintenance Margin here.
You can add or remove Margin in the open position settings, but it won’t change the position value. Adding Margin will reduce the Leverage and push away the Liquidation Price. Removing Margin will increase the Leverage and move the Liquidation Price closer to the Mark Price - the trigger for Liquidation.
That is to say, the higher Leverage a trader is using, the higher chance there is for his position to be liquidated.